RAA489220 - 4 to 10 Cell Battery Front End and Protector

Datasheet Summary

Description

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.
Support for wide range of current-sense resistors.

Renesas

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Datasheet Details

Part number	RAA489220
Manufacturer	Renesas
File Size	1.77 MB
Description	4 to 10 Cell Battery Front End and Protector
Datasheet	RAA489220 Datasheet
Additional preview pages of the RAA489220 datasheet.

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Full PDF Text Transcription

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RAA489220 4 to 10 Cell Battery Front End and Protector Datasheet 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). 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 I2C interface includes optional CRC to reliably 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.

Published: Jan 17, 2025 |