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3 to 7 Series Li-ion Battery Fuel Gauge IC

Package Information

CAD Model: View CAD Model
Pkg. Type: QFN
Pkg. Code:
Lead Count (#): 48
Pkg. Dimensions (mm): 6 x 6 x 1.0
Pitch (mm):

Environmental & Export Classifications

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
ECCN (US) 3A991.a.2
HTS (US) 8542.39.0090

Product Attributes

Pkg. Type QFN
Lead Count (#) 48
Carrier Type Tape & Reel
Moisture Sensitivity Level (MSL) 3
Pkg. Dimensions (mm) 6 x 6 x 1.0
Target applications Industrial/Hi-power equipment, Battery Management Unit
Pb (Lead) Free Yes
Application Battery Management Unit
Charge/Discharge FET Control High / Low Side
Comm. Interface I2C, UART
Device Functions Battery Protection, Fuel Gauging
Family Name Fuel Gauge IC (FGIC)
Flash Memory (KB) 128KB
Function Battery fuel gauging
I/O Ports 19
Lead Compliant Yes
Length (mm) 6
MOQ 2500
Parametric Category Battery Fuel Gauges
Remarks Li-ION battery Fuel gauge
Series Cells 3 to 7 Cells
Supply Voltage (V) 4 - 50
Tape & Reel Yes
Thickness (mm) 1

Description

The RAJ240091 is a Renesas Li-ion battery fuel gauge IC (FGIC), which consists of an MCU device and an AFE device in a single package. It features the RL78 CPU core with multiple low-power modes, enabling high performance during ultra-low power operation.

This fuel gauge IC includes control firmware stored in embedded flash memory, which manages the operation of its analog and digital circuits. Its core functions include measuring battery voltage, current, and temperature, estimating remaining capacity, and providing protection against overcurrent, overvoltage, and excessive temperature, as well as executing other battery management operations.