Datasheet > MP2665A

MP2665A

更新时间： 2024-11-20 17:02:15

品牌	Logo	应用领域
芯源 - MPS		电池
页数	文件大小	规格书
42页	1008K
描述
具有 I2C 控制、电源路径管理和运输模式的 21V、1A 单节锂离子电池充电器 IC

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MP2665A 数据手册

MP2665A

21V, 1A, Battery Charger for Single-Cell

Li-Ion Batteries with I²C Control, Power

Path Management, and Shipping Mode

DESCRIPTION

FEATURES

•

USB-Compliant, I²C-Configurable Charger

for Single-Cell Li-Ion/Polymer Batteries

21V Maximum Input Voltage Rating with

Over-Voltage Protection (OVP)

Complete Power Path Management to

Simultaneously Power the System and

Charge the Battery

The MP2665A is a highly integrated, single-cell

Li-ion/Li-polymer battery charger with system

power path management. It is targeted at

space-constrained portable applications. This

device takes input power from either an AC

adapter or a USB port to supply the system

load and charge the battery simultaneously.

The charger features pre-charge, constant

current (CC) fast charge, constant voltage (CV)

regulation, charge termination, and automatic

recharge.

•

Fully Configurable Charging Parameters:

o 50mA to 1A Input Current Limit

o 3.88V to 5.08V Input Voltage Loop to

Support Weak Adapters

o ±0.5% Charging Termination Voltage

Accuracy

Power path management ensures that the

system

continuously

powered

o 16mA to 896mA Fast Charge Current

o 2.5mA to 62mA Pre-Charge and

Termination Current

I²C Interface to Set Charging Parameters

and Report INT/Statuses

Ultra-Low Battery Leakage Current in

Shipping Mode

Robust Safety Features:

automatically selecting the input, the battery, or

both to power the system. Power path

management is accomplished using a low-

dropout (LDO) regulator connected from the

input to the system, as well as a 100mΩ switch

connected from the battery to the system. This

function separates the charging current from

the system load, which allows for proper charge

termination and keeps the battery in full charge

mode.

•

o Built-in Charging Protections Including

Battery Temperature Monitoring and

Configurable Timer

The MP2665A provides system short-circuit

protection (SCP) by limiting the current from the

input to the system, as well as the current from

the battery to the system. This feature is

especially critical to prevent the Li-ion battery

from being damaged due to excessively high

currents. An on-chip battery under-voltage

lockout (UVLO) threshold cuts off the path

between the battery and the system if the

battery voltage drops below the configurable

battery UVLO threshold. This prevents the Li-

ion battery from being overly discharged. An

integrated I²C interface allows the MP2665A to

configure the following charging parameters:

input current limit, input voltage regulation limit,

charging current, battery regulation voltage,

safety timer, and battery UVLO threshold.

o Configurable Thermal Regulation

o Configurable Watchdog Timer

o PCB Over-Temperature Protection

o Configurable Over Discharge Current

Protection

System Reset Function

OTP Back Registers to Set Default Power-

On Configuration

•

Available in a QFN-12 (2.5mmx3mm)

Package

APPLICATIONS

•

Wearable Devices

Smart Handheld Devices

Fitness Accessories

Smartwatches

The MP2665A is available in a QFN-12

(2.5mmx3mm) package.

All MPS parts are lead-free, halogen-free, and adhere to the RoHS

directive. For MPS green status, please visit the MPS website under

Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are

trademarks of Monolithic Power Systems, Inc. or its subsidiaries.

MP2665A Rev. 1.1

4/28/2022

MonolithicPower.com

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7...42

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