BQ27510-G3 System-Side Impedance-Track Fuel Gauge With Direct Battery Connection | TI.com

BQ27510-G3 (ACTIVE)

System-Side Impedance-Track Fuel Gauge With Direct Battery Connection

System-Side Impedance-Track Fuel Gauge With Direct Battery Connection - BQ27510-G3
 

Description

The Texas Instruments bq27510-G3 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 bq27510-G3 resides on the system’s main board and manages an embedded battery (non-removable) or a removable battery pack.

The bq27510-G3 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 bq27510-G3 requires only PACK+ (P+), PACK– (P–), and optional Thermistor (T) connections to a removable battery pack or embedded battery circuit.

Features

  • 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 32-Ahr 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
  • Small 12-Pin 2.50 mm × 4.00 mm SON Package

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Parametrics Compare all products in Battery Fuel Gauge

 
Number of Series Cells
Cell Chemistry
Battery Capacity (Max) (mAh)
Communication Interface
Battery Capacity (Min) (mAh)
External Capacity Indication
Implementation
Gas Gauge Algorithm
Cell Balancing
Features
Operating Temperature Range (C)
Pin/Package
BQ27510-G3 BQ27542-G1 BQ34110 BQ34Z100-G1 BQ78350-R1
Single Cell     Single Cell     2-4 Cells
>4 Cells
Single Cell    
2-4 Cells
>4 Cells
Single Cell    
>4 Cells    
Li-Ion/Li-Polymer     Li-Ion/Li-Polymer     Lead Acid
Li-Ion/Li-Polymer
LiFePO4
NiCd
NiMH    
Lead Acid
Li-Ion/Li-Polymer
LiFePO4
NiCd
NiMH    
Li-Ion/Li-Polymer
LiFePO4    
16000     32000     29000     29000     320000    
I2C     HDQ
I2C    
I2C     HDQ
I2C    
I2C
SMBus    
300     100     100     100     100    
None     None     None     LED     LCD
LED
SOC    
System     Pack     Pack
System    
Pack
System    
Pack    
Impedance Track     Impedance Track     CEDV     Impedance Track     CEDV    
N/A     N/A     N/A     N/A     External
Internal    
N/A     SHA-1 Authentication     Accumulated Coulomb Count
End of Service
SHA-1 Authentication    
SHA-1 Authentication     Cell Balancing
Integrated Protector
SHA-1 Authentication    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
12SON     12SON     14TSSOP     14TSSOP     30TSSOP