Texas Instruments HPA01025YZFR

Description
The Texas Instruments bq27520-G2 system-side Li-Ion battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell Li-Ion battery packs. The device requires little system microcontroller firmware development. The bq27520-G2 resides on the system's main board and manages an embedded battery (non-removable) or a removable battery pack.
The bq27520-G2 uses the patented Impedance Track™ algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), run-time to empty (min), battery voltage (mV), temperature (°C) and state of health (%).
Battery fuel gauging with the bq27520-G2 requires only PACK (P ), PACK- (P-), and Thermistor (T) connections to a removable battery pack or embedded battery circuit. The CSP option is a 15-ball package in the nominal dimensions of 2610x1956um with 0,5 mm lead pitch. It is ideal for space-constrained applications.

Features
Battery Fuel Gauge for 1-Series Li-Ion Applications
Resides on System Main Board - Works With Embedded or Removable Battery Packs
Uses PACK , PACK-, and T Battery Terminals
Microcontroller Peripheral Provides:
Accurate Battery Fuel Gauging
Internal Temperature Sensor for Battery Temperature Reporting
Battery Low Interrupt Warning
Battery Insertion Indicator
Configurable Level of State of Charge (SOC) Interrupts
State of Health Indicator
Current Data Logging Buffer
32 Bytes of Non-Volatile Scratch-Pad FLASH
Battery Fuel Gauge Based on Patented Impedance Track™ Technology
Models the Battery Discharge Curve for Accurate Time-to-Empty Predictions
Automatically Adjusts for Battery Aging, Battery Self-Discharge, and Temperature/Rate Inefficiencies
Low-Value Sense Resistor (10 mΩ or Less)
400-kHz 12CM Interface for Connection to System Microcontroller Port
In a 15-Pin NanoFree™ (CSP) Packaging

Applications
Smartphones
PDAs
Digital Still and Video Cameras
Handheld Terminals
MP3 or Multimedia Players