MCP73123-22SSLASHMF datasheet(1/28 Pages) MICROCHIP

部品番号	MCP73123-22S/MF

部品情報	Lithium Iron Phosphate (LiFePO4) Battery Charge Management Controller with Input Overvoltage Protection

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メーカー	MICROCHIP [Microchip Technology]

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 2009-2013 Microchip Technology Inc.

DS22191E-page 1

MCP73123/223

Features:

• Complete Linear Charge Management Controller:

- Integrated Input Overvoltage Protection (OVP)

- Integrated Pass Transistor

- Integrated Current Sense

- Integrated Reverse Discharge Protection

• Constant Current/Constant Voltage Operation

with Thermal Regulation

• 4.15V Undervoltage Lockout (UVLO)

• 18V Absolute Maximum Input with OVP:

- 6.5V - MCP73123

- 13V - MCP73223

• High Accuracy Preset Voltage Regulation

Through Full Temperature Range (-5°C to +55°C):

- +0.5% - MCP73123

- +0.6% - MCP73223

• Battery Charge Voltage Options:

- 3.6V - MCP73123

- 7.2V - MCP73223

• Resistor Programmable Fast Charge Current:

-130 mA - 1100 mA

• Preconditioning of Deeply Depleted Cells:

- Available Options: 10% or Disable

• Integrated Precondition Timer:

- 32 Minutes or Disable

• Automatic End-of-Charge Control:

- Selectable Minimum Current Ratio:



5%, 7.5%, 10% or 20%

- Elapse Safety Timer: 4 HR, 6 HR, 8 HR or

Disable

• Automatic Recharge:

- Available Options: 95% or Disable

• Factory Preset Charge Status Output:

- On/Off or Flashing

•Soft Start

• Temperature Range: -40°C to +85°C

• Packaging: DFN-10 (3 mm x 3 mm)

Applications:

• Low-Cost LiFePO4 Battery Chargers

• Power Tools

•Toys

• Backup Energy Storage Solutions

Description:

The MCP73123/223 is a highly integrated Lithium Iron

Phosphate (LiFePO4) battery charge management

controller for use in space-limited and cost-sensitive

applications. The MCP73123/223 provides specific

charge algorithms for LiFePO4 batteries to achieve

optimal capacity and safety in the shortest charging

time possible. Along with its small physical size, the low

number

of

external

components

makes

the

MCP73123/223

ideally

suitable

for

various

applications. The absolute maximum voltage, up to

18V, allows the use of MCP73123/223 in harsh

environments, such as low cost AC adapter or voltage

spikes from plugging/unplugging.

The MCP73123/223 employs a constant current/

constant voltage charge algorithm. The 3.6V per cell

factory preset reference voltage simplifies design with

2V

preconditioning

threshold.

The

fast

charge,

constant current value is set with one external resistor

from 130 mA to 1100 mA. The MCP73123/223 also

limits the charge current based on die temperature

during high power or high ambient conditions. This

thermal regulation optimizes the charge cycle time

while maintaining device reliability.

The PROG pin of the MCP73123/223 also serves as

the enable pin. When high impedance is applied, the

MCP73123/223 will be in Standby mode.

The MCP73123/223 is fully specified over the ambient

temperature range of -40°C to +85°C. The MCP73123/

223 is available in a 10 lead DFN package.

Package Types (Top View)

MCP73123/223

3x3 DFN *

VBAT

VDD

VBAT

VSS

1

2

3

4

10

9

8

7 STAT

PROG

VDD

* Includes Exposed Thermal Pad (EP); see Table 3-1.

EP

11

NC 5

6 NC

Lithium Iron Phosphate (LiFePO4) Battery Charge

Management Controller with Input Overvoltage Protection

同様の部品番号 - MCP73123-22S/MF

メーカー	部品番号	データシート	部品情報
Microchip Technology	MCP73123-22SI	591Kb / 34P	Lithium Iron Phosphate (LiFePO4) Battery Charge Management Controller with Input Overvoltage Protection 2010
Microchip Technology	MCP73123-22SI/MF	584Kb / 34P	Lithium Iron Phosphate (LiFePO4) Battery Charge Management Controller with Input Overvoltage Protection 2009

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同様の説明 - MCP73123-22S/MF

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