The bq27532-G1 system-side, Li-Ion battery management unit is a microcontroller peripheral that provides Impedance Track? fuel gauging and charging control for single-cell Li-Ion battery packs. The fuel gauge requires little system microcontroller firmware development. Together with bq2425x single-cell switch-mode charger, the fuel gauge manages an embedded battery (non-removable) or a removable battery pack.
The fuel gauge uses the patented Impedance Track algorithm for fuel gauging, and provides information, such as remaining battery capacity (mAh), state-of-charge (%), runtime-to-empty (minimum), battery voltage (mV), temperature (°C), and SoH (%).
Battery fuel gauging with the device requires only PACK+ (P+), PACK– (P–), and thermistor (T) connections to a removable battery pack or embedded battery circuit. The 15-pin NanoFree? (CSP) package has dimensions of 2.61 mm × 1.96 mm with 0.5-mm lead pitch. It is ideal for space-constrained applications.
Feature
- Battery Fuel Gauge and Charger Controller for 1- Cell Li-Ion Applications up to 14,500-mAh Capacity
- Resides on System Main Board
- Battery Fuel Gauge Based on Patented Impedance Track? Technology
- Models the Battery Discharge Curve for Accurate Remaining Capacity Predictions
- Automatically Adjusts for Battery Aging, Battery Self-Discharge, and Temperature and Rate Inefficiencies
- Low-value Sense Resistor (5 to 20 mΩ)
- Battery Charger Controller With Customizable Charge Profiles
- Configurable Charge Voltage and Current Based on Temperature
- Optional State-of-Health (SoH) and Multi-Level Based Charge Profiles
- Host-free Autonomous Battery Management System
- Reduced Software Overhead Allows for Easy Portability Across Platforms and Shorter OEM Design Cycles
- Higher Safety and Security
- Runtime Improvements
- Longer Battery Runtime Leveraging Impedance Track? Technology
- Tighter Accuracy Controls for Charger Termination
- Improved Recharge Thresholds
- Intelligent Charging – Customized and Adaptive Charging Profiles
- Charger Control Based on SoH
- Temperature Level Charging (TLC)
- Stand-alone Battery Charger Controller for bq2425x Single-Cell Switch-mode Battery Charger
- 400-kHz I2C Interface for Connection to System Microcontroller Port
The bq27532-G1 system-side, Li-Ion battery management unit is a microcontroller peripheral that provides Impedance Track? fuel gauging and charging control for single-cell Li-Ion battery packs. The fuel gauge requires little system microcontroller firmware development. Together with bq2425x single-cell switch-mode charger, the fuel gauge manages an embedded battery (non-removable) or a removable battery pack.
The fuel gauge uses the patented Impedance Track algorithm for fuel gauging, and provides information, such as remaining battery capacity (mAh), state-of-charge (%), runtime-to-empty (minimum), battery voltage (mV), temperature (°C), and SoH (%).
Battery fuel gauging with the device requires only PACK+ (P+), PACK– (P–), and thermistor (T) connections to a removable battery pack or embedded battery circuit. The 15-pin NanoFree? (CSP) package has dimensions of 2.61 mm × 1.96 mm with 0.5-mm lead pitch. It is ideal for space-constrained applications.
