LTC6995MPS6-1#TRMPBF

LTC6995-1/LTC6995-2 TimerBlox: Long Timer, Low Frequency Oscillator FEATURES DESCRIPTION n Period Range: 1ms to 9.5 Hours The LTC 6995 is a silicon oscillator with a programmable n Timing Reset by Power-On or Reset Input period range of 1.024ms to 9.54 hours (29.1Hz to 977Hz), n Configured with 1 to 3 Resistors specifically intended for long duration timing events. The n <1.5% Maximum Frequency Error LTC6995 is part of the TimerBlox family of versatile n Programmable Output Polarity silicon timing devices. n 2.25V to 5.5V Single Supply Operation A single resistor, R , programs the LTC6995s internal SET n 55A to 80A Supply Current master oscillator frequency. The output clock period (2ms to 9.5hr Clock Period) is determined by this master oscillator and an internal n 500s Start-Up Time frequency divider, N , programmable to eight settings DIV n CMOS Output Driver Sources/Sinks 20mA 21 from 1 to 2 . n 55C to 125C Operating Temperature Range N R n 21 Available in Low Profile (1mm) SOT-23 (ThinSOT) DIV SET t = 1.024ms, N = 1,8,64,...,2 OUT DIV and 2mm 3mm DFN Packages 50k n AEC-Q100 Qualified for Automotive Applications When oscillating, the LTC6995 generates a 50% duty cycle square wave output. A reset function is provided APPLICATIONS to stop the master oscillator and clear internal dividers. Removing reset initiates a full output clock cycle which is n Power-On Reset Timer useful for programmable power-on reset and watchdog n Long Time One Shot timer applications. n Heartbeat Timers n The LTC6995 has two versions of reset functionality. The Watchdog Timers n reset input is active high for the LTC6995-1 and active low Periodic Wake-Up Call n for the LTC6995-2. The polarity of the output when reset High Vibration, High Acceleration Environments is selectable for both versions. All registered trademarks and trademarks are the property of their respective owners. OUTPUT (OSCILLATOR START STATE) RST/RST POLARITY LTC6995-1 LTC6995-2 0 0 Oscillating (Low) 0 (Reset) 1 0 0 (Reset) Oscillating (Low) 0 1 Oscillating (High) 1 (Reset) 1 1 1 (Reset) Oscillating (High) TYPICAL APPLICATION Active Low Power-On Reset Timer RST OUT + V LTC6995-1 + + GND V V 5 SECONDS 0.1F OUT 1M TIMER STOPPED 1/2 t OUT SET DIV POWER-ON RESET 118k (1ms TO 4.8 HOURS) 392k 699512 TA01 Rev. B 1 Document Feedback For more information www.analog.comLTC6995-1/LTC6995-2 ABSOLUTE MAXIMUM RATINGS (Note 1) + Supply Voltage (V ) to GND ........................................6V Specified Temperature Range (Note 3) Maximum Voltage LTC6995C ................................................ 0C to 70C + on Any Pin ................ (GND 0.3V) V (V + 0.3V) LTC6995I .............................................40C to 85C PIN Operating Temperature Range (Note 2) LTC6995H .......................................... 40C to 125C LTC6995C ............................................40C to 85C LTC6995MP ....................................... 55C to 125C LTC6995I .............................................40C to 85C Junction Temperature ........................................... 150C LTC6995H .......................................... 40C to 125C Storage Temperature Range .................. 65C to 150C LTC6995MP ....................................... 55C to 125C Lead Temperature (Soldering, 10 sec) S6 Package ...........................................................300C PIN CONFIGURATION LTC6995-1/LTC6995-2 LTC6995-1/LTC6995-2 TOP VIEW TOP VIEW + V 1 6 OUT 7 RST/RST 1 6 OUT DIV 2 5 GND GND + GND 2 5 V SET 4 RST/RST 3 SET 3 4 DIV DCB PACKAGE S6 PACKAGE 6-LEAD (2mm 3mm) PLASTIC DFN 6-LEAD PLASTIC TSOT-23 T = 150C, = 64C/W, = 9.6C/W T = 150C, = 192C/W, = 51C/W JMAX JA JC JMAX JA JC EXPOSED PAD (PIN 7) CONNECTED TO GND, PCB CONNECTION OPTIONAL ORDER INFORMATION Lead Free Finish TAPE AND REEL (MINI) TAPE AND REEL PART MARKING PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE LTC6995CDCB-1 TRMPBF LTC6995CDCB-1 TRPBF LGJM 6-Lead (2mm x 3mm) Plastic DFN 0C to 70C LTC6995IDCB-1 TRMPBF LTC6995IDCB-1 TRPBF LGJM 6-Lead (2mm x 3mm) Plastic DFN 40C to 85C LTC6995HDCB-1 TRMPBF LTC6995HDCB-1 TRPBF LGJM 6-Lead (2mm x 3mm) Plastic DFN 40C to 125C LTC6995CS6-1 TRMPBF LTC6995CS6-1 TRPBF LTGJN 6-Lead Plastic TSOT-23 0C to 70C LTC6995IS6-1 TRMPBF LTC6995IS6-1 TRPBF LTGJN 6-Lead Plastic TSOT-23 40C to 85C LTC6995HS6-1 TRMPBF LTC6995HS6-1 TRPBF LTGJN 6-Lead Plastic TSOT-23 40C to 125C LTC6995CDCB-2 TRMPBF LTC6995CDCB-2 TRPBF LGJP 6-Lead (2mm x 3mm) Plastic DFN 0C to 70C LTC6995IDCB-2 TRMPBF LTC6995IDCB-2 TRPBF LGJP 6-Lead (2mm x 3mm) Plastic DFN 40C to 85C LTC6995HDCB-2 TRMPBF LTC6995HDCB-2 TRPBF LGJP 6-Lead (2mm x 3mm) Plastic DFN 40C to 125C LTC6995CS6-2 TRMPBF LTC6995CS6-2 TRPBF LTGJQ 6-Lead Plastic TSOT-23 0C to 70C LTC6995IS6-2 TRMPBF LTC6995IS6-2 TRPBF LTGJQ 6-Lead Plastic TSOT-23 40C to 85C LTC6995HS6-2 TRMPBF LTC6995HS6-2 TRPBF LTGJQ 6-Lead Plastic TSOT-23 40C to 125C LTC6995MPS6-1 TRMPBF LTC6995MPS6-1 TRPBF LTGJN 6-Lead Plastic TSOT-23 55C to 125C LTC6995MPS6-2 TRMPBF LTC6995MPS6-2 TRPBF LTGJQ 6-Lead Plastic TSOT-23 55C to 125C Rev. B 2 For more information www.analog.com