BQ27320 Texas instruments

BQ27320

Уточнить цену

BQ27320

Уточнить цену

СРАВНИТЬ

В СРАВНЕНИИ

Уточнить цену

Описание

The Texas Instruments single-cell bq27320 battery fuel gauge requires very minimal configuration and system microcontroller firmware development, leading to quick system bring-up. The bq27320 uses the Compensated End-of-Discharge Voltage (CEDV) gas gauging algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), runtime-to-empty (min), battery voltage (mV), temperature (°C) and state-of-health (%). TI customers can tune chemistry parameters using TIs web-based tool, GAUGEPARCAL. Configurable interrupts help save system power and free up the host from continuous polling. Accurate temperature sensing is supported via an external thermistor. Battery fuel gauging with the bq27320 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. It is ideal for space-constrained applications.

Battery Fuel Gauge For System-/Pack-Side
Configuration
Compensated End-of-Discharge Voltage (CEDV)
Gauging Technology
- Adjusts for Battery Aging, Self-Discharge,
  Temperature, and Rate Changes
- Reports Remaining Capacity, State-of-Charge
  (SOC), and Time-to-Empty with Smoothing
  Filter
- Battery State-of-Health Estimation
- Supports Embedded or Removable Packs
  from 100-mAhr to 14,500-mAhr Capacity
- Accommodates Pack Swapping with up to
  Four Separate Battery Profiles
- Supports a Raw Coulomb Counter To Provide
  Delta Capacity Information
Microcontroller Peripheral Supports:
- SDQ Communication Interface for
  Authentication ID
- 400-kHz I²C™ Serial Interface for High-Speed
  Communication
- 32 Bytes of Scratch-Pad FLASH NVM
- Battery Low Digital Output Warning
- Configurable SOC Interrupts
- External Thermistor, Internal Sensor, or Host
  Reported Temperature Options
15-Pin 1.375 mm × 2.75 mm × 1.75 mm
Pitch NanoFree™ (DSBGA) Package

Cell chemistry	Li-Ion/Li-Polymer
Number of series cells	Single Cell
Communication interface	I2C
Battery capacity (min) (mAh)	100
Battery capacity (max) (mAh)	29000
Implementation	Pack, System
External capacity indication	None
Operating temperature range (°C)	-40 to 85
Rating	Catalog