Product Information

MIC2790N-04VMT-T5

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Supervisory Circuits Supervisor w/ High- Accuracy, Ultra-Fast
Manufacturer: Microchip


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Manufacturer
Microchip
Product Category
Supervisory Circuits
RoHS - XON
Y Icon ROHS
Number of Inputs Monitored
1 Input
Threshold Voltage
0.4 V
Output Type
Active Low, Open Drain
Manual Reset
Manual Reset
Battery Backup Switching
No Backup
Supply Voltage - Max
5.5 V
Maximum Operating Temperature
+125 C
Mounting Style
Smd/Smt
Package / Case
TDFN-6
Accuracy
1 %
Packaging
Reel
Series
Mic2790
Type
Voltage Supervisory
Brand
Microchip Technology / Micrel
Chip Enable Signals
No Chip Enable
Minimum Operating Temperature
- 40 C
Operating Supply Current
50 uA
Reset Delay Time
1.2 S
Factory Pack Quantity :
500
Supply Voltage - Min
1.5 V
Watchdog Timers
No Watchdog
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MIC2790/1/3 Supervisor with High-Accuracy, Ultra-Fast Propagation Delay, and Capacitor-Programmable Reset Delay General Description Features The MIC2790/1/3 is ideal for monitoring highly-accurate ? 1.5V to 5.5V operating supply voltage range core voltages that require rapid response in the event of a ? Ultra-fast propagation delay (1?s typically) fault condition. The voltage supervisor IC features a ? 0.4V reference voltage (SNS pin) manual reset input, enable input (MIC2793 only), a ? ?1.0% threshold accuracy from ?40?C to +125?C capacitor-programmable reset timeout delay and both an active-low and active-high reset output. ? Monitored voltage range from 0.4V to 5.5V ? Programmable reset timeout delay (from 1ms to 10s) The MIC2790/1/3 monitors system voltages that are in the ? Manual reset input with an internal pull-up resistor range of 0.4V to 5.5V, with a typical sense accuracy of 0.5% at +25?C and ?1.0% across ?40?C to +125?C. The ? Active-high enable input pin (MIC2793 only) IC asserts a reset output when the sense voltage drops ? The MIC2790/1/3 features multiple output options: below the threshold or when the manual reset is pulled to ? Open-drain active-low (/RESET) a logic low. The active-low reset stays low for the duration ? Push-pull active-low (/RESET) of the reset timeout delay once the sense voltage returns to normal and the manual reset transitions to a logic high ? Push-pull active-high (RESET) state. The reset timeout delay period is programmable ? ?40?C to 125?C junction temperature range from 1ms to 10s with an external capacitor. ? 6-pin TSOT-23 (MIC2790) The MIC2790/1/3 operates from a low supply voltage of ? 6-pin 2mm ? 2mm Thin DFN (MIC2790) 1.5V to 5.5V, and is rated to operate over the temperature ? 6-pin 1.6mm ? 1.6mm Thin DFN (MIC2791) range of ?40?C to +125?C. The MIC2790 is available in a ? 8-pin 2mm ? 2mm Thin DFN (MIC2793) 6-pin TSOT-23 package or a 6-pin 2mm ? 2mm ? 0.55mm DFN package. The MIC2791 is available in a tiny 6-pin Applications 1.6mm ? 1.6mm ? 0.55mm DFN package. The MIC2793 is ? Telecom available in a 8-pin 2mm ? 2mm ? 0.55mm DFN package. ? Computer/servers Datasheets and support documentation are available on ? Medical equipment Micrel?s web site at:www.m icrel.com. ? Portable ? Set-top boxes ? Critical microprocessor monitoring Typical Application Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com Revision 1.2 May 22, 2014 MIC2790/1/3 Supervisor with High-Accuracy, Ultra-Fast Propagation Delay, and Capacitor-Programmable Reset Delay General Description Features The MIC2790/1/3 is ideal for monitoring highly-accurate ? 1.5V to 5.5V operating supply voltage range core voltages that require rapid response in the event of a ? Ultra-fast propagation delay (1?s typically) fault condition. The voltage supervisor IC features a ? 0.4V reference voltage (SNS pin) manual reset input, enable input (MIC2793 only), a ? ?1.0% threshold accuracy from ?40?C to +125?C capacitor-programmable reset timeout delay and both an active-low and active-high reset output. ? Monitored voltage range from 0.4V to 5.5V ? Programmable reset timeout delay (from 1ms to 10s) The MIC2790/1/3 monitors system voltages that are in the ? Manual reset input with an internal pull-up resistor range of 0.4V to 5.5V, with a typical sense accuracy of 0.5% at +25?C and ?1.0% across ?40?C to +125?C. The ? Active-high enable input pin (MIC2793 only) IC asserts a reset output when the sense voltage drops ? The MIC2790/1/3 features multiple output options: below the threshold or when the manual reset is pulled to ? Open-drain active-low (/RESET) a logic low. The active-low reset stays low for the duration ? Push-pull active-low (/RESET) of the reset timeout delay once the sense voltage returns to normal and the manual reset transitions to a logic high ? Push-pull active-high (RESET) state. The reset timeout delay period is programmable ? ?40?C to 125?C junction temperature range from 1ms to 10s with an external capacitor. ? 6-pin TSOT-23 (MIC2790) The MIC2790/1/3 operates from a low supply voltage of ? 6-pin 2mm ? 2mm Thin DFN (MIC2790) 1.5V to 5.5V, and is rated to operate over the temperature ? 6-pin 1.6mm ? 1.6mm Thin DFN (MIC2791) range of ?40?C to +125?C. The MIC2790 is available in a ? 8-pin 2mm ? 2mm Thin DFN (MIC2793) 6-pin TSOT-23 package or a 6-pin 2mm ? 2mm ? 0.55mm DFN package. The MIC2791 is available in a tiny 6-pin Applications 1.6mm ? 1.6mm ? 0.55mm DFN package. The MIC2793 is ? Telecom available in a 8-pin 2mm ? 2mm ? 0.55mm DFN package. ? Computer/servers Datasheets and support documentation are available on ? Medical equipment Micrel?s web site at:www.m icrel.com. ? Portable ? Set-top boxes ? Critical microprocessor monitoring Typical Application Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com Revision 1.2 May 22, 2014 Micrel, Inc. MIC2790/1/3 Ordering Information /RESET RESET Threshold Enable Junction Marking Output Output (2, 3) Part Number Package Voltage Pin Temperature Code (1) (Active- (Active- Range (SNS) Feature Low) High) MIC2790N-04VD6 9NB 0.4V Open-Drain ?40?C to +125?C 6-pin TSOT-23 ? ? MIC2790L-04VD6 9LB 0.4V Push-Pull ? ? ?40?C to +125?C 6-pin TSOT-23 MIC2790H-04VD6 9LC 0.4V ? Push-Pull ? ?40?C to +125?C 6-pin TSOT-23 MIC2790N-04VMT 9NA 0.4V Open-Drain ?40?C to +125?C 6-pin 2mm ? 2mm TDFN ? ? MIC2791N-04VMT 1N 0.4V Open-Drain ? ? ?40?C to +125?C 6-pin 1.6mm ?1.6mm TDFN MIC2791L-04VMT 1L 0.4V Push-Pull ? ? ?40?C to +125?C 6-pin 1.6mm ? 1.6mm TDFN MIC2791H-04VMT XH 0.4V Push-Pull ?40?C to +125?C 6-pin 1.6mm ?1.6mm TDFN ? ? MIC2793LH-04VMT 3LH 0.4V Push-Pull Push-Pull Yes ?40?C to +125?C 8-pin 2mm ? 2mm TDFN MIC2793NH-04VMT 3NH 0.4V Open-Drain Push-Pull Yes ?40?C to +125?C 8-pin 2mm ? 2mm TDFN Notes: 1. Other voltage options are available. Contact Micrel for details. 2. Thin DFN pin 1 identifier = ?? . 3. Thin DFN is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen free. Pin Configuration VDD 1 6 RESET (/RESET) RESET (/RESET) 1 6 VDD 5 5 GND 2 SNS SNS 2 GND /MR 3 4 C C 3 EP 4 /MR TH TH 6-Pin TSOT (D6) 6-Pin 1.6mm x 1.6mm TDFN (MT) (Top View) (Top View) 1 8 RESET EN VDD 1 6 RESET (/RESET) 2 7 /RESET VDD 5 SNS 2 GND SNS 3 6 GND C 3 EP 4 /MR EP TH C 4 5 /MR TH 6-Pin 2mm x 2mm TDFN (MT) 8-Pin 2mm x 2mm TDFN (MT) (Top View) (Top View) Revision 1.2 May 22, 2014 2 MIC2790/1/3 Supervisor with High-Accuracy, Ultra-Fast Propagation Delay, and Capacitor-Programmable Reset Delay General Description Features The MIC2790/1/3 is ideal for monitoring highly-accurate ? 1.5V to 5.5V operating supply voltage range core voltages that require rapid response in the event of a ? Ultra-fast propagation delay (1?s typically) fault condition. The voltage supervisor IC features a ? 0.4V reference voltage (SNS pin) manual reset input, enable input (MIC2793 only), a ? ?1.0% threshold accuracy from ?40?C to +125?C capacitor-programmable reset timeout delay and both an active-low and active-high reset output. ? Monitored voltage range from 0.4V to 5.5V ? Programmable reset timeout delay (from 1ms to 10s) The MIC2790/1/3 monitors system voltages that are in the ? Manual reset input with an internal pull-up resistor range of 0.4V to 5.5V, with a typical sense accuracy of 0.5% at +25?C and ?1.0% across ?40?C to +125?C. The ? Active-high enable input pin (MIC2793 only) IC asserts a reset output when the sense voltage drops ? The MIC2790/1/3 features multiple output options: below the threshold or when the manual reset is pulled to ? Open-drain active-low (/RESET) a logic low. The active-low reset stays low for the duration ? Push-pull active-low (/RESET) of the reset timeout delay once the sense voltage returns to normal and the manual reset transitions to a logic high ? Push-pull active-high (RESET) state. The reset timeout delay period is programmable ? ?40?C to 125?C junction temperature range from 1ms to 10s with an external capacitor. ? 6-pin TSOT-23 (MIC2790) The MIC2790/1/3 operates from a low supply voltage of ? 6-pin 2mm ? 2mm Thin DFN (MIC2790) 1.5V to 5.5V, and is rated to operate over the temperature ? 6-pin 1.6mm ? 1.6mm Thin DFN (MIC2791) range of ?40?C to +125?C. The MIC2790 is available in a ? 8-pin 2mm ? 2mm Thin DFN (MIC2793) 6-pin TSOT-23 package or a 6-pin 2mm ? 2mm ? 0.55mm DFN package. The MIC2791 is available in a tiny 6-pin Applications 1.6mm ? 1.6mm ? 0.55mm DFN package. The MIC2793 is ? Telecom available in a 8-pin 2mm ? 2mm ? 0.55mm DFN package. ? Computer/servers Datasheets and support documentation are available on ? Medical equipment Micrel?s web site at:www.m icrel.com. ? Portable ? Set-top boxes ? Critical microprocessor monitoring Typical Application Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com Revision 1.2 May 22, 2014 MIC2790/1/3 Supervisor with High-Accuracy, Ultra-Fast Propagation Delay, and Capacitor-Programmable Reset Delay General Description Features The MIC2790/1/3 is ideal for monitoring highly-accurate ? 1.5V to 5.5V operating supply voltage range core voltages that require rapid response in the event of a ? Ultra-fast propagation delay (1?s typically) fault condition. The voltage supervisor IC features a ? 0.4V reference voltage (SNS pin) manual reset input, enable input (MIC2793 only), a ? ?1.0% threshold accuracy from ?40?C to +125?C capacitor-programmable reset timeout delay and both an active-low and active-high reset output. ? Monitored voltage range from 0.4V to 5.5V ? Programmable reset timeout delay (from 1ms to 10s) The MIC2790/1/3 monitors system voltages that are in the ? Manual reset input with an internal pull-up resistor range of 0.4V to 5.5V, with a typical sense accuracy of 0.5% at +25?C and ?1.0% across ?40?C to +125?C. The ? Active-high enable input pin (MIC2793 only) IC asserts a reset output when the sense voltage drops ? The MIC2790/1/3 features multiple output options: below the threshold or when the manual reset is pulled to ? Open-drain active-low (/RESET) a logic low. The active-low reset stays low for the duration ? Push-pull active-low (/RESET) of the reset timeout delay once the sense voltage returns to normal and the manual reset transitions to a logic high ? Push-pull active-high (RESET) state. The reset timeout delay period is programmable ? ?40?C to 125?C junction temperature range from 1ms to 10s with an external capacitor. ? 6-pin TSOT-23 (MIC2790) The MIC2790/1/3 operates from a low supply voltage of ? 6-pin 2mm ? 2mm Thin DFN (MIC2790) 1.5V to 5.5V, and is rated to operate over the temperature ? 6-pin 1.6mm ? 1.6mm Thin DFN (MIC2791) range of ?40?C to +125?C. The MIC2790 is available in a ? 8-pin 2mm ? 2mm Thin DFN (MIC2793) 6-pin TSOT-23 package or a 6-pin 2mm ? 2mm ? 0.55mm DFN package. The MIC2791 is available in a tiny 6-pin Applications 1.6mm ? 1.6mm ? 0.55mm DFN package. The MIC2793 is ? Telecom available in a 8-pin 2mm ? 2mm ? 0.55mm DFN package. ? Computer/servers Datasheets and support documentation are available on ? Medical equipment Micrel?s web site at:www.m icrel.com. ? Portable ? Set-top boxes ? Critical microprocessor monitoring Typical Application Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com Revision 1.2 May 22, 2014 Micrel, Inc. MIC2790/1/3 Ordering Information /RESET RESET Threshold Enable Junction Marking Output Output (2, 3) Part Number Package Voltage Pin Temperature Code (1) (Active- (Active- Range (SNS) Feature Low) High) MIC2790N-04VD6 9NB 0.4V Open-Drain ?40?C to +125?C 6-pin TSOT-23 ? ? MIC2790L-04VD6 9LB 0.4V Push-Pull ? ? ?40?C to +125?C 6-pin TSOT-23 MIC2790H-04VD6 9LC 0.4V ? Push-Pull ? ?40?C to +125?C 6-pin TSOT-23 MIC2790N-04VMT 9NA 0.4V Open-Drain ?40?C to +125?C 6-pin 2mm ? 2mm TDFN ? ? MIC2791N-04VMT 1N 0.4V Open-Drain ? ? ?40?C to +125?C 6-pin 1.6mm ?1.6mm TDFN MIC2791L-04VMT 1L 0.4V Push-Pull ? ? ?40?C to +125?C 6-pin 1.6mm ? 1.6mm TDFN MIC2791H-04VMT XH 0.4V Push-Pull ?40?C to +125?C 6-pin 1.6mm ?1.6mm TDFN ? ? MIC2793LH-04VMT 3LH 0.4V Push-Pull Push-Pull Yes ?40?C to +125?C 8-pin 2mm ? 2mm TDFN MIC2793NH-04VMT 3NH 0.4V Open-Drain Push-Pull Yes ?40?C to +125?C 8-pin 2mm ? 2mm TDFN Notes: 1. Other voltage options are available. Contact Micrel for details. 2. Thin DFN pin 1 identifier = ?? . 3. Thin DFN is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen free. Pin Configuration VDD 1 6 RESET (/RESET) RESET (/RESET) 1 6 VDD 5 5 GND 2 SNS SNS 2 GND /MR 3 4 C C 3 EP 4 /MR TH TH 6-Pin TSOT (D6) 6-Pin 1.6mm x 1.6mm TDFN (MT) (Top View) (Top View) 1 8 RESET EN VDD 1 6 RESET (/RESET) 2 7 /RESET VDD 5 SNS 2 GND SNS 3 6 GND C 3 EP 4 /MR EP TH C 4 5 /MR TH 6-Pin 2mm x 2mm TDFN (MT) 8-Pin 2mm x 2mm TDFN (MT) (Top View) (Top View) Revision 1.2 May 22, 2014 2 Micrel, Inc. MIC2790/1/3 Pin Description Pin Pin Pin Pin Number Number Number Number Pin Pin Function TSOT-23 1.6 ? 1.6 2 ? 2 2 ? 2 Name (6L) (6L) (6L) (8L) /RESET is an active-low output pin and is available in an open- drain or push-pull configuration. In the open-drain configuration, a pull-up resistor to VDD is required and /RESET pin is asserted low when /MR is set to a 1 6 6 7 /RESET logic low or the SNS voltage decreases below the threshold voltage. /RESET will remain low for the reset timeout delay after SNS > (V + V ) and /MR is set to a logic high. TH HYST The push-pull configuration does not require a pull-up resistor and behaves exactly the same as the open-drain configuration. Reset is an active-high push-pull output and is asserted high when /MR is set to a logic low or the SNS voltage decreases below the 1 6 6 8 RESET threshold voltage. RESET will remain high for the reset timeout delay after SNS > (V + V ) and /MR is set to a logic high. TH HYST 2 5 5 6 GND Supply Ground. Manual reset is an active-low input logic level pin and is internally pulled to VDD through a 90k? pull-up resistor. Pulling the /MR 3 4 4 5 /MR input to a logic low asserts RESET and /RESET pins. /RESET will remain low and RESET will remain high for the reset timeout delay after /MR is pulled to logic high. Programmable timeout delay. Connect a capacitor to ground to set 4 3 3 4 CTH a user defined reset delay time. Voltage monitor input. Connect sense pin to the voltage to be monitored through a resistor divider. When this voltage decreases 5 2 2 3 SNS below the threshold voltage, VTH, /RESET is asserted low and RESET is asserted high. Supply voltage pin. Bypass with a 1?F capacitor from this pin to 6 1 1 2 VDD GND. Enable input function is only available in the MIC2793 version. This pin enables the /MR input function and RESET and /RESET ? ? ? 1 EN outputs. When EN is in a logic low state, the reset outputs are de- asserted. The EN pin has an internal 90k? pull-up resistor to VDD. EP EP EP ePad Exposed Pad. Connect to ground plane. ? Revision 1.2 May 22, 2014 3 MIC2790/1/3 Supervisor with High-Accuracy, Ultra-Fast Propagation Delay, and Capacitor-Programmable Reset Delay General Description Features The MIC2790/1/3 is ideal for monitoring highly-accurate ? 1.5V to 5.5V operating supply voltage range core voltages that require rapid response in the event of a ? Ultra-fast propagation delay (1?s typically) fault condition. The voltage supervisor IC features a ? 0.4V reference voltage (SNS pin) manual reset input, enable input (MIC2793 only), a ? ?1.0% threshold accuracy from ?40?C to +125?C capacitor-programmable reset timeout delay and both an active-low and active-high reset output. ? Monitored voltage range from 0.4V to 5.5V ? Programmable reset timeout delay (from 1ms to 10s) The MIC2790/1/3 monitors system voltages that are in the ? Manual reset input with an internal pull-up resistor range of 0.4V to 5.5V, with a typical sense accuracy of 0.5% at +25?C and ?1.0% across ?40?C to +125?C. The ? Active-high enable input pin (MIC2793 only) IC asserts a reset output when the sense voltage drops ? The MIC2790/1/3 features multiple output options: below the threshold or when the manual reset is pulled to ? Open-drain active-low (/RESET) a logic low. The active-low reset stays low for the duration ? Push-pull active-low (/RESET) of the reset timeout delay once the sense voltage returns to normal and the manual reset transitions to a logic high ? Push-pull active-high (RESET) state. The reset timeout delay period is programmable ? ?40?C to 125?C junction temperature range from 1ms to 10s with an external capacitor. ? 6-pin TSOT-23 (MIC2790) The MIC2790/1/3 operates from a low supply voltage of ? 6-pin 2mm ? 2mm Thin DFN (MIC2790) 1.5V to 5.5V, and is rated to operate over the temperature ? 6-pin 1.6mm ? 1.6mm Thin DFN (MIC2791) range of ?40?C to +125?C. The MIC2790 is available in a ? 8-pin 2mm ? 2mm Thin DFN (MIC2793) 6-pin TSOT-23 package or a 6-pin 2mm ? 2mm ? 0.55mm DFN package. The MIC2791 is available in a tiny 6-pin Applications 1.6mm ? 1.6mm ? 0.55mm DFN package. The MIC2793 is ? Telecom available in a 8-pin 2mm ? 2mm ? 0.55mm DFN package. ? Computer/servers Datasheets and support documentation are available on ? Medical equipment Micrel?s web site at:www.m icrel.com. ? Portable ? Set-top boxes ? Critical microprocessor monitoring Typical Application Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com Revision 1.2 May 22, 2014 MIC2790/1/3 Supervisor with High-Accuracy, Ultra-Fast Propagation Delay, and Capacitor-Programmable Reset Delay General Description Features The MIC2790/1/3 is ideal for monitoring highly-accurate ? 1.5V to 5.5V operating supply voltage range core voltages that require rapid response in the event of a ? Ultra-fast propagation delay (1?s typically) fault condition. The voltage supervisor IC features a ? 0.4V reference voltage (SNS pin) manual reset input, enable input (MIC2793 only), a ? ?1.0% threshold accuracy from ?40?C to +125?C capacitor-programmable reset timeout delay and both an active-low and active-high reset output. ? Monitored voltage range from 0.4V to 5.5V ? Programmable reset timeout delay (from 1ms to 10s) The MIC2790/1/3 monitors system voltages that are in the ? Manual reset input with an internal pull-up resistor range of 0.4V to 5.5V, with a typical sense accuracy of 0.5% at +25?C and ?1.0% across ?40?C to +125?C. The ? Active-high enable input pin (MIC2793 only) IC asserts a reset output when the sense voltage drops ? The MIC2790/1/3 features multiple output options: below the threshold or when the manual reset is pulled to ? Open-drain active-low (/RESET) a logic low. The active-low reset stays low for the duration ? Push-pull active-low (/RESET) of the reset timeout delay once the sense voltage returns to normal and the manual reset transitions to a logic high ? Push-pull active-high (RESET) state. The reset timeout delay period is programmable ? ?40?C to 125?C junction temperature range from 1ms to 10s with an external capacitor. ? 6-pin TSOT-23 (MIC2790) The MIC2790/1/3 operates from a low supply voltage of ? 6-pin 2mm ? 2mm Thin DFN (MIC2790) 1.5V to 5.5V, and is rated to operate over the temperature ? 6-pin 1.6mm ? 1.6mm Thin DFN (MIC2791) range of ?40?C to +125?C. The MIC2790 is available in a ? 8-pin 2mm ? 2mm Thin DFN (MIC2793) 6-pin TSOT-23 package or a 6-pin 2mm ? 2mm ? 0.55mm DFN package. The MIC2791 is available in a tiny 6-pin Applications 1.6mm ? 1.6mm ? 0.55mm DFN package. The MIC2793 is ? Telecom available in a 8-pin 2mm ? 2mm ? 0.55mm DFN package. ? Computer/servers Datasheets and support documentation are available on ? Medical equipment Micrel?s web site at:www.m icrel.com. ? Portable ? Set-top boxes ? Critical microprocessor monitoring Typical Application Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com Revision 1.2 May 22, 2014 Micrel, Inc. MIC2790/1/3 Ordering Information /RESET RESET Threshold Enable Junction Marking Output Output (2, 3) Part Number Package Voltage Pin Temperature Code (1) (Active- (Active- Range (SNS) Feature Low) High) MIC2790N-04VD6 9NB 0.4V Open-Drain ?40?C to +125?C 6-pin TSOT-23 ? ? MIC2790L-04VD6 9LB 0.4V Push-Pull ? ? ?40?C to +125?C 6-pin TSOT-23 MIC2790H-04VD6 9LC 0.4V ? Push-Pull ? ?40?C to +125?C 6-pin TSOT-23 MIC2790N-04VMT 9NA 0.4V Open-Drain ?40?C to +125?C 6-pin 2mm ? 2mm TDFN ? ? MIC2791N-04VMT 1N 0.4V Open-Drain ? ? ?40?C to +125?C 6-pin 1.6mm ?1.6mm TDFN MIC2791L-04VMT 1L 0.4V Push-Pull ? ? ?40?C to +125?C 6-pin 1.6mm ? 1.6mm TDFN MIC2791H-04VMT XH 0.4V Push-Pull ?40?C to +125?C 6-pin 1.6mm ?1.6mm TDFN ? ? MIC2793LH-04VMT 3LH 0.4V Push-Pull Push-Pull Yes ?40?C to +125?C 8-pin 2mm ? 2mm TDFN MIC2793NH-04VMT 3NH 0.4V Open-Drain Push-Pull Yes ?40?C to +125?C 8-pin 2mm ? 2mm TDFN Notes: 1. Other voltage options are available. Contact Micrel for details. 2. Thin DFN pin 1 identifier = ?? . 3. Thin DFN is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen free. Pin Configuration VDD 1 6 RESET (/RESET) RESET (/RESET) 1 6 VDD 5 5 GND 2 SNS SNS 2 GND /MR 3 4 C C 3 EP 4 /MR TH TH 6-Pin TSOT (D6) 6-Pin 1.6mm x 1.6mm TDFN (MT) (Top View) (Top View) 1 8 RESET EN VDD 1 6 RESET (/RESET) 2 7 /RESET VDD 5 SNS 2 GND SNS 3 6 GND C 3 EP 4 /MR EP TH C 4 5 /MR TH 6-Pin 2mm x 2mm TDFN (MT) 8-Pin 2mm x 2mm TDFN (MT) (Top View) (Top View) Revision 1.2 May 22, 2014 2 MIC2790/1/3 Supervisor with High-Accuracy, Ultra-Fast Propagation Delay, and Capacitor-Programmable Reset Delay General Description Features The MIC2790/1/3 is ideal for monitoring highly-accurate ? 1.5V to 5.5V operating supply voltage range core voltages that require rapid response in the event of a ? Ultra-fast propagation delay (1?s typically) fault condition. The voltage supervisor IC features a ? 0.4V reference voltage (SNS pin) manual reset input, enable input (MIC2793 only), a ? ?1.0% threshold accuracy from ?40?C to +125?C capacitor-programmable reset timeout delay and both an active-low and active-high reset output. ? Monitored voltage range from 0.4V to 5.5V ? Programmable reset timeout delay (from 1ms to 10s) The MIC2790/1/3 monitors system voltages that are in the ? Manual reset input with an internal pull-up resistor range of 0.4V to 5.5V, with a typical sense accuracy of 0.5% at +25?C and ?1.0% across ?40?C to +125?C. The ? Active-high enable input pin (MIC2793 only) IC asserts a reset output when the sense voltage drops ? The MIC2790/1/3 features multiple output options: below the threshold or when the manual reset is pulled to ? Open-drain active-low (/RESET) a logic low. The active-low reset stays low for the duration ? Push-pull active-low (/RESET) of the reset timeout delay once the sense voltage returns to normal and the manual reset transitions to a logic high ? Push-pull active-high (RESET) state. The reset timeout delay period is programmable ? ?40?C to 125?C junction temperature range from 1ms to 10s with an external capacitor. ? 6-pin TSOT-23 (MIC2790) The MIC2790/1/3 operates from a low supply voltage of ? 6-pin 2mm ? 2mm Thin DFN (MIC2790) 1.5V to 5.5V, and is rated to operate over the temperature ? 6-pin 1.6mm ? 1.6mm Thin DFN (MIC2791) range of ?40?C to +125?C. The MIC2790 is available in a ? 8-pin 2mm ? 2mm Thin DFN (MIC2793) 6-pin TSOT-23 package or a 6-pin 2mm ? 2mm ? 0.55mm DFN package. The MIC2791 is available in a tiny 6-pin Applications 1.6mm ? 1.6mm ? 0.55mm DFN package. The MIC2793 is ? Telecom available in a 8-pin 2mm ? 2mm ? 0.55mm DFN package. ? Computer/servers Datasheets and support documentation are available on ? Medical equipment Micrel?s web site at:www.m icrel.com. ? Portable ? Set-top boxes ? Critical microprocessor monitoring Typical Application Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com Revision 1.2 May 22, 2014 MIC2790/1/3 Supervisor with High-Accuracy, Ultra-Fast Propagation Delay, and Capacitor-Programmable Reset Delay General Description Features The MIC2790/1/3 is ideal for monitoring highly-accurate ? 1.5V to 5.5V operating supply voltage range core voltages that require rapid response in the event of a ? Ultra-fast propagation delay (1?s typically) fault condition. The voltage supervisor IC features a ? 0.4V reference voltage (SNS pin) manual reset input, enable input (MIC2793 only), a ? ?1.0% threshold accuracy from ?40?C to +125?C capacitor-programmable reset timeout delay and both an active-low and active-high reset output. ? Monitored voltage range from 0.4V to 5.5V ? Programmable reset timeout delay (from 1ms to 10s) The MIC2790/1/3 monitors system voltages that are in the ? Manual reset input with an internal pull-up resistor range of 0.4V to 5.5V, with a typical sense accuracy of 0.5% at +25?C and ?1.0% across ?40?C to +125?C. The ? Active-high enable input pin (MIC2793 only) IC asserts a reset output when the sense voltage drops ? The MIC2790/1/3 features multiple output options: below the threshold or when the manual reset is pulled to ? Open-drain active-low (/RESET) a logic low. The active-low reset stays low for the duration ? Push-pull active-low (/RESET) of the reset timeout delay once the sense voltage returns to normal and the manual reset transitions to a logic high ? Push-pull active-high (RESET) state. The reset timeout delay period is programmable ? ?40?C to 125?C junction temperature range from 1ms to 10s with an external capacitor. ? 6-pin TSOT-23 (MIC2790) The MIC2790/1/3 operates from a low supply voltage of ? 6-pin 2mm ? 2mm Thin DFN (MIC2790) 1.5V to 5.5V, and is rated to operate over the temperature ? 6-pin 1.6mm ? 1.6mm Thin DFN (MIC2791) range of ?40?C to +125?C. The MIC2790 is available in a ? 8-pin 2mm ? 2mm Thin DFN (MIC2793) 6-pin TSOT-23 package or a 6-pin 2mm ? 2mm ? 0.55mm DFN package. The MIC2791 is available in a tiny 6-pin Applications 1.6mm ? 1.6mm ? 0.55mm DFN package. The MIC2793 is ? Telecom available in a 8-pin 2mm ? 2mm ? 0.55mm DFN package. ? Computer/servers Datasheets and support documentation are available on ? Medical equipment Micrel?s web site at:www.m icrel.com. ? Portable ? Set-top boxes ? Critical microprocessor monitoring Typical Application Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com Revision 1.2 May 22, 2014 Micrel, Inc. MIC2790/1/3 Ordering Information /RESET RESET Threshold Enable Junction Marking Output Output (2, 3) Part Number Package Voltage Pin Temperature Code (1) (Active- (Active- Range (SNS) Feature Low) High) MIC2790N-04VD6 9NB 0.4V Open-Drain ?40?C to +125?C 6-pin TSOT-23 ? ? MIC2790L-04VD6 9LB 0.4V Push-Pull ? ? ?40?C to +125?C 6-pin TSOT-23 MIC2790H-04VD6 9LC 0.4V ? Push-Pull ? ?40?C to +125?C 6-pin TSOT-23 MIC2790N-04VMT 9NA 0.4V Open-Drain ?40?C to +125?C 6-pin 2mm ? 2mm TDFN ? ? MIC2791N-04VMT 1N 0.4V Open-Drain ? ? ?40?C to +125?C 6-pin 1.6mm ?1.6mm TDFN MIC2791L-04VMT 1L 0.4V Push-Pull ? ? ?40?C to +125?C 6-pin 1.6mm ? 1.6mm TDFN MIC2791H-04VMT XH 0.4V Push-Pull ?40?C to +125?C 6-pin 1.6mm ?1.6mm TDFN ? ? MIC2793LH-04VMT 3LH 0.4V Push-Pull Push-Pull Yes ?40?C to +125?C 8-pin 2mm ? 2mm TDFN MIC2793NH-04VMT 3NH 0.4V Open-Drain Push-Pull Yes ?40?C to +125?C 8-pin 2mm ? 2mm TDFN Notes: 1. Other voltage options are available. Contact Micrel for details. 2. Thin DFN pin 1 identifier = ?? . 3. Thin DFN is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen free. Pin Configuration VDD 1 6 RESET (/RESET) RESET (/RESET) 1 6 VDD 5 5 GND 2 SNS SNS 2 GND /MR 3 4 C C 3 EP 4 /MR TH TH 6-Pin TSOT (D6) 6-Pin 1.6mm x 1.6mm TDFN (MT) (Top View) (Top View) 1 8 RESET EN VDD 1 6 RESET (/RESET) 2 7 /RESET VDD 5 SNS 2 GND SNS 3 6 GND C 3 EP 4 /MR EP TH C 4 5 /MR TH 6-Pin 2mm x 2mm TDFN (MT) 8-Pin 2mm x 2mm TDFN (MT) (Top View) (Top View) Revision 1.2 May 22, 2014 2 Micrel, Inc. MIC2790/1/3 Pin Description Pin Pin Pin Pin Number Number Number Number Pin Pin Function TSOT-23 1.6 ? 1.6 2 ? 2 2 ? 2 Name (6L) (6L) (6L) (8L) /RESET is an active-low output pin and is available in an open- drain or push-pull configuration. In the open-drain configuration, a pull-up resistor to VDD is required and /RESET pin is asserted low when /MR is set to a 1 6 6 7 /RESET logic low or the SNS voltage decreases below the threshold voltage. /RESET will remain low for the reset timeout delay after SNS > (V + V ) and /MR is set to a logic high. TH HYST The push-pull configuration does not require a pull-up resistor and behaves exactly the same as the open-drain configuration. Reset is an active-high push-pull output and is asserted high when /MR is set to a logic low or the SNS voltage decreases below the 1 6 6 8 RESET threshold voltage. RESET will remain high for the reset timeout delay after SNS > (V + V ) and /MR is set to a logic high. TH HYST 2 5 5 6 GND Supply Ground. Manual reset is an active-low input logic level pin and is internally pulled to VDD through a 90k? pull-up resistor. Pulling the /MR 3 4 4 5 /MR input to a logic low asserts RESET and /RESET pins. /RESET will remain low and RESET will remain high for the reset timeout delay after /MR is pulled to logic high. Programmable timeout delay. Connect a capacitor to ground to set 4 3 3 4 CTH a user defined reset delay time. Voltage monitor input. Connect sense pin to the voltage to be monitored through a resistor divider. When this voltage decreases 5 2 2 3 SNS below the threshold voltage, VTH, /RESET is asserted low and RESET is asserted high. Supply voltage pin. Bypass with a 1?F capacitor from this pin to 6 1 1 2 VDD GND. Enable input function is only available in the MIC2793 version. This pin enables the /MR input function and RESET and /RESET ? ? ? 1 EN outputs. When EN is in a logic low state, the reset outputs are de- asserted. The EN pin has an internal 90k? pull-up resistor to VDD. EP EP EP ePad Exposed Pad. Connect to ground plane. ? Revision 1.2 May 22, 2014 3

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