深圳市中立信电子科技有限公司

1.1 Features

1

1

• AFE Monitoring Features

– Pure Digital Interface

– Internal ADC Measures Cell Voltage, Die

Temperature, and External Thermistor

– A Separate, Internal ADC Measures Pack

Current (Coulomb Counter)

– Directly Supports up to Three Thermistors

(103AT)

• Hardware Protection Features

– Overcurrent in Discharge (OCD)

– Short Circuit in Discharge (SCD)

– Overvoltage (OV)

– Undervoltage (UV)

– Secondary Protector Fault Detection

• Additional Features

– Integrated Cell Balancing FETs

– Charge, Discharge Low-Side NCH FET Drivers

– Alert Interrupt to Host Microcontroller

– 2.5-V or 3.3-V Output Voltage Regulator

– No EEPROM Programming Necessary

– High Supply Voltage Absolute Maximum (Up to

108 V)

– Simple I

2C™ Compatible Interface (CRC

Option)

– Random Cell Connection Tolerant

1.2 Applications

• Light Electric Vehicles (LEV): eBikes, eScooters,

Pedelec, and Pedal-Assist Bicycles

• Power and Gardening Tools

Description

The bq769x0 family of robust analog front-end (AFE) devices serves as part of a complete packmonitoring

and protection solution for next-generation, high-power systems, such as light electric vehicles, power

tools, and uninterruptible power supplies. The bq769x0 is designed with low power in mind: Sub-blocks

within the IC may be enabled/disabled to control the overall chip current consumption, and a SHIP mode

provides a simple way to put the pack into an ultra-low power state.