Datasheet > RAA489220

RAA489220

更新时间： 2024-11-06 14:58:23

品牌	Logo	应用领域
瑞萨 - RENESAS		电池
页数	文件大小	规格书
60页	1813K
描述
4S to 10S Li-ion Battery Manager

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RAA489220 数据手册

Datasheet

RAA489220

4 to 10 Cell Battery Front End and Protector

The RAA489220 is a 10-cell Battery management

Front End (BFE IC) with both autonomous protection

functions and battery health monitoring for packs with

MCU control (Figure 1).

Features

▪ VPACK voltages: 5V to 44V

▪ Hot plug tolerance

▪ Built-in low-side FET drivers

▪ Charger/load presence detection

▪ Cell open wire and system checks

▪ Autonomous detection and actions

▪ HVGPIO fuse blow configurable

The RAA489220 monitors each cell for overvoltage,

undervoltage, pack temperature, charge currents, and

discharge currents. This device includes internal self

test to confirm its own health, and system checks to

confirm the system state.

The I C interface includes optional CRC to reliably

▪ Support for wide range of current-sense resistors

communicate with an MCU. The device has low-side

charge and discharge FET controls to disconnect the

pack from a load or charger. The RAA489220 has a

low typical Low Power Mode current consumption of

3µA to maximize battery shelf life and operational

time.

Applications

▪ Power tools

▪ Hand held electronics

▪ Battery protector

The RAA489220 is offered in a 32pin 4mm×4mm

QFN package.

V_PACK

RESET

VTEMP

VBG

RAA489220

10 Cell

HVGPIO

V3P3

THERM2

THERM1

Protector

VC10

VC9

VREG

V3P3

Window

Comparator

Temperature

VC8

Reg

Map

LOAD

VC5

VC4

VC3

Analog

MUX

SDA

SCL

Window

Comparator

VCell

I2C

MCU

VC2

VC1

V2P5

CHARGER

Battery

Fault

State

Internal

Temp

NTC

VSS

DGND

ALERT

Machine

CSN

Oscillator

Sweep

Speed

Window

Comparator

Current

R _{d_sense}

V_PACK

DCSP

CCSP

Fault

Filter

CHMON

RESET

c_sense

Counter

Power FETS

LDMON

LDFET

LCFET

Figure 1. BFE Application

R16DS0091EU0100 Rev.1.00

Jul 27, 2022

Page 1

12 3 4 5 6 7...60

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