Product Information

MCP73123T-22SI/MF

MCP73123T-22SI/MF electronic component of Microchip

Datasheet
Microchip Technology Battery Management Sngl cel OVP LiFEPO4 battery charger

Manufacturer: Microchip
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1: USD 2.0837 ea
Line Total: USD 2.0837

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MOQ: 1  Multiples: 1
Pack Size: 1
     
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MCP73123/223 Lithium Iron Phosphate (LiFePO ) Battery Charge 4 Management Controller with Input Overvoltage Protection Features: Description: Complete Linear Charge Management Controller: The MCP73123/223 is a highly integrated Lithium Iron Phosphate (LiFePO ) battery charge management - Integrated Input Overvoltage Protection (OVP) 4 controller for use in space-limited and cost-sensitive - Integrated Pass Transistor applications. The MCP73123/223 provides specific - Integrated Current Sense charge algorithms for LiFePO batteries to achieve 4 - Integrated Reverse Discharge Protection optimal capacity and safety in the shortest charging Constant Current/Constant Voltage Operation time possible. Along with its small physical size, the low with Thermal Regulation number of external components makes the MCP73123/223 ideally suitable for various 4.15V Undervoltage Lockout (UVLO) applications. The absolute maximum voltage, up to 18V Absolute Maximum Input with OVP: 18V, allows the use of MCP73123/223 in harsh - 6.5V - MCP73123 environments, such as low cost AC adapter or voltage - 13V - MCP73223 spikes from plugging/unplugging. High Accuracy Preset Voltage Regulation The MCP73123/223 employs a constant current/ Through Full Temperature Range (-5C to +55C): constant voltage charge algorithm. The 3.6V per cell - +0.5% - MCP73123 factory preset reference voltage simplifies design with - +0.6% - MCP73223 2V preconditioning threshold. The fast charge, constant current value is set with one external resistor Battery Charge Voltage Options: from 130 mA to 1100 mA. The MCP73123/223 also - 3.6V - MCP73123 limits the charge current based on die temperature - 7.2V - MCP73223 during high power or high ambient conditions. This Resistor Programmable Fast Charge Current: thermal regulation optimizes the charge cycle time -130 mA - 1100 mA while maintaining device reliability. Preconditioning of Deeply Depleted Cells: The PROG pin of the MCP73123/223 also serves as the enable pin. When high impedance is applied, the - Available Options: 10% or Disable MCP73123/223 will be in Standby mode. Integrated Precondition Timer: The MCP73123/223 is fully specified over the ambient - 32 Minutes or Disable temperature range of -40C to +85C. The MCP73123/ Automatic End-of-Charge Control: 223 is available in a 10 lead DFN package. - Selectable Minimum Current Ratio: 5%, 7.5%, 10% or 20% Package Types (Top View) - Elapse Safety Timer: 4 HR, 6 HR, 8 HR or Disable MCP73123/223 3x3 DFN * Automatic Recharge: - Available Options: 95% or Disable V PROG 1 10 DD Factory Preset Charge Status Output: V V 2 9 DD SS - On/Off or Flashing EP V V 3 8 BAT SS Soft Start 11 V 4 7 STAT BAT Temperature Range: -40C to +85C NC 5 6 NC Packaging: DFN-10 (3 mm x 3 mm) * Includes Exposed Thermal Pad (EP) see Table 3-1. Applications: Low-Cost LiFePO Battery Chargers 4 Power Tools Toys Backup Energy Storage Solutions 2009-2013 Microchip Technology Inc. DS22191E-page 1MCP73123/223 Typical Application MCP73123 Typical Application 3 1 AC-DC Adapter V V DD BAT 4 2 V V DD + BAT 4.7 F 4.7 F 1-Cell 7 10 PROG STAT LiFePO 4 Battery 1k 1.15 k 5 NC - 9 V SS 8 6 V NC SS TABLE 1: AVAILABLE FACTORY PRESET OPTIONS End-of- Charge Preconditioning Preconditioning Precondition Elapse Automatic Output OVP Charge Voltage Charge Current Threshold Timer Timer Recharge Status Control 3.6V 6.5V Disable/10% 2V Disable / Disable/4 hr./ 5%/7.5%/ No / Type 1/ 32 Minimum 6 hr./8 hr. 10%/20% Yes Type 2 7.2V 13V Disable/10% 4V Disable / Disable/4 hr./ 5%/7.5%/ No / Type 1/ 32 Minimum 6 hr./8 hr. 10%/20% Yes Type 2 Note 1: I : Regulated fast charge current. REG 2: V : Regulated charge voltage. REG 3: I /I : Preconditioning charge current ratio of regulated fast charge current. PREG REG 4: I /I : End-of-Charge control ratio of regulated fast charge current. TERM REG 5: V /V : Recharge threshold ratio of regulated battery voltage, 0% or 95%. 0% = Disabled. RTH REG 6: V /V : Preconditioning threshold voltage. PTH REG 7: Type 1: On/Off Type 2: Flashing. Please refer to Table 5-2. TABLE 2: STANDARD SAMPLE OPTIONS Part V OVP I /I Precharge Elapse I /I Auto Recharge V /V Output REG PREG REG TERM REG PTH REG Number Timer Timer Threshold Status (0% = Disabled) MCP73123-22S/MF 3.6V 6.5V 10% 32 Min. 6 hr. 10% 95% 2V Type 1 MCP73123-22A/MF 3.6V 6.5V 10% 32 Min. 6 hr. 10% 0% 2V Type 1 MCP73223-C2S/MF 7.2V 13V 10% 32 Min. 6 hr. 10% 95% 4V Type 1 MCP73223-C2A/MF 7.2V 13V 10% 32 Min. 6 hr. 10% 0% 4V Type 1 Note 1: Customers should contact their distributor, representatives or field application engineer (FAE) for support and samples. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document. Technical support is available through the web site at: http//support.microchip.com. 2: Contact your local Microchip sales office for alternative device options. DS22191E-page 2 2009-2013 Microchip Technology Inc.

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8542.31.00 51 No ..Application Specific (Digital) Integrated Circuits (ASIC)

Electronic integrated circuits: Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits
Monolithic integrated circuits:
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