BQ27520-G4 - 具有集成 LDO 的系统端 Impedance Track 电量监测..

BQ27520-G4是TI德州仪器公司的一款电池电量监测产品，BQ27520-G4是具有集成 LDO 的系统端 Impedance Track 电量监测..，本站介绍了BQ27520-G4的封装应用图解、特点和优点、功能等，并给出了与BQ27520-G4相关的TI元器件型号供参考。

BQ27520-G4 - 具有集成 LDO 的系统端 Impedance Track 电量监测.. - 电池电量监测 - 电池管理产品 - 德州仪器

产品特性

Single-Series Cell Li-Ion Battery Fuel Gauge Resides on System Board
- Integrated 2.5 VDC LDO
- External Low-Value 10-mΩ Sense Resistor
Patented Impedance Track™ Technology
- Adjusts for Battery Aging, Self-Discharge, Temperature, and Rate Changes
- Reports Remaining Capacity, State-of-Charge (SOC), and Time-to-Empty
- Optional Smoothing Filter
- Battery State-of-Health (Aging) Estimation
- Supports Embedded or Removable Packs with up to 32A hr Capacity
- Accommodates Pack Swapping With 2 Separate Battery Profiles
Microcontroller Peripheral Supports:
- 400-kHz I2C Serial Interface
- 32 Bytes of Scratch-Pad FLASH NVM
- Battery Low Digital Output Warning
- Configurable SOC Interrupts
- External Thermistor, Internal Sensor, or Host-reported Temperature Options
Tiny 15-pin, 2610 × 1956 µm, 0.5-mm pitch NanoFree™ (DSBGA) Package

2 Applications

Smartphones, Feature Phones, and Tablets
Digital Still and Video Cameras
Handheld Terminals
MP3 or Multimedia Players

3 Description

The Texas Instruments bq27520-G4 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 fuel gauge resides on the main board of the system and 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 (%), run-time to empty (minimum), battery voltage (mV), temperature (°C), and state of health (%).

Battery fuel gauging requires only PACK+ (P+), PACK– (P–), and optional Thermistor (T) connections to a removable battery pack or embedded battery circuit. The device uses a 15-ball NanoFree™ (DSBGA) package in the nominal dimensions of 2610 × 1956 µm with 0.5-mm lead pitch. It is ideal for space-constrained applications.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
bq27520-G4	DSBGA (15)	2.610 mm x 1.956 mm

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