BQ27510-G3 Datasheet, PDF (1/30 Pages) Texas Instruments – System-Side Impedance Track Fuel Gauge With Direct Battery Connection

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bq27510-G3
SLUSAT1A – MARCH 2013 – REVISED NOVEMBER 2015
bq27510-G3 System-Side Impedance Track™ Fuel Gauge With Direct Battery Connection
1 Features
•1 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
2 Applications
• Smartphones, Feature Phones, and Tablets
• Wearables
• Building Automation
• Portable Medical/Industrial Handsets
• Portable Audio
• Gaming
3 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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
FIRMWARE
VERSION
bq27510-G3
SON (12)
4.00 (0X0400)
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Diagram
Host System
Power
Management
Controller
VCC
REG25
REGIN
LDO
GPOUT
Voltage
Sense
2
IC
DATA
Temp
Sense
bq27510-G3
Current
Sense
PACK+
T
PACK-
Single-Cell Li-ion
Battery Pack
PROTECTION
IC
FETs ^CHG
DSG
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.