MCP73223 Microchip Technology, MCP73223 Datasheet

MCP73223

Manufacturer Part Number

MCP73223

Description

Lithium Iron Phosphate (LiFePO4) Battery Charge Management Controller

Manufacturer

Microchip Technology

Datasheet

1.MCP73223.pdf (34 pages)

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Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MCP73223-C2SI/MF

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560

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Bonase Electronics (HK) Co., Limited

Part Number:

MCP73223T-C2SI/MF

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Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MCP73223T-C2TI/MF

Manufacturer:

MICROCHIP

Quantity:

12 000

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Features

• Complete Linear Charge Management Controller:

• Constant Current / Constant Voltage Operation

• 4.15V Undervoltage Lockout (UVLO)

• 18V Absolute Maximum Input with OVP:

• High Accuracy Preset Voltage Regulation

• Battery Charge Voltage Options:

• Resistor Programmable Fast Charge Current:

• Preconditioning of Deeply Depleted Cells:

• Integrated Precondition Timer:

• Automatic End-of-Charge Control:

• Automatic Recharge:

• Factory Preset Charge Status Output:

• Soft Start

• Temperature Range: -40°C to +85°C

• Packaging: DFN-10 (3 mm x 3 mm)

Applications

• Low-Cost LiFePO

• Power Tools

• Toys

• Backup Energy Storages

Management Controller with Input Overvoltage Protection

- Integrated Input Overvoltage Protection

- Integrated Pass Transistor

- Integrated Current Sense

- Integrated Reverse Discharge Protection

with Thermal Regulation

- 6.5V - MCP73123

- 13V - MCP73223

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

- +0.5% - MCP73123

- +0.6% - MCP73223

- 3.6V - MCP73123

- 7.2V - MCP73223

- 130 mA - 1100 mA

- Available Options: 10% or Disable

- 32 Minutes or Disable

- Selectable Minimum Current Ratio:

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

- Available Options: 95% or Disable

- On/Off or Flashing

5%, 7.5%, 10% or 20%

Disable

Lithium Iron Phosphate (LiFePO

Battery Chargers

MCP73123/223

Description

The MCP73123/223 is a highly integrated Lithium Iron

Phosphate(LiFePO

controller for use in space-limited and cost-sensitive

applications. The MCP73123/223 provides specific

charge algorithms for LiFePO

optimal capacity and safety in the shortest charging

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

number

MCP73123/223

applications. The absolute maximum voltage, up to

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

environments, such as low cost wall wart or voltage

spikes from plug/unplug.

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

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)

* Includes Exposed Thermal Pad (EP); see

) Battery Charge

external

BAT

NC 5

ideally

MCP73123/223

) battery charge management

3x3 DFN *

components

suitable

7 STAT

6 NC

www.DataSheet4U.com

batteries to achieve

PROG

DS22191B-page 1

for

makes

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