Ti Bq25181 Battery Power Charge Management Chip Electronic Components Integrated Circuit IC.

• shape: Flat
• Conductive Type: Bipolar Integrated Circuit
• Integration: MSI
• Technics: Semiconductor IC
• Package/Pins: Vssop (Dgk) 8
• Rating: Catalog
• Model NO.: BQ25181
• RoHS: Yes
• Reach: Yes
• Operating Temperature Range (°c): -40 to 125
• Transport Package: 2, 500 Large T&R
• Specification: 14.7 mm² 3 x 4.9
• Trademark: TI
• HS Code: 8542399000
• Production Capacity: 60000

Product Description

 

Packaging information

Package | PinsWSON (DLH) | 10

Operating temperature range (°C)-40 to 125

Package qty | Carrier250 | SMALL T&R

Features for the BQ25181

• 1-A Power path linear battery charger
  • 3.0-V to 5.9-V input voltage operating range
  • 25-V tolerant input voltage
  • Configurable battery regulation voltage with 0.5% accuracy from 3.6 V to 4.65 V in 10-mV steps
  • 5-mA to 1-A configurable fast charge current
  • 110-mΩ battery FET ON resistance
  • Up to 2.5-A discharge current to support high system loads
  • Configurable termination current down to 0.5 mA
  • Configurable NTC charging profile thresholds including JEITA support
  • Power cycle and advanced reset mechanisms to recover system
• Power path management for powering the system and charging the battery
  • Regulated system voltage (SYS) ranging from 4.4 V to 4.9 V in addition to battery voltage tracking and input pass-though options
  • Configurable input current limit from 50mA to 1100mA
  • Selectable adapter or battery power for system
  • I²C allow host to disconnect the battery or adapter from system as needed
  • Dynamic power path management optimizes charging from weak adapters
• Ultra low quiescent current modes
  • 15-nA Shutdown mode
  • 3.2-µA Ship mode with button press wake
  • 4 µA in Battery only mode
  • 40-µA input adapter Iq in Sleep mode
• Dedicated VIN Power Good (/PG_GPO) and Charge Enable (/CE) pins
• One push-button wake-up and reset input
• Integrated fault protection
  • Input overvoltage protection (V_{IN_OVP})
  • Battery undervoltage protection (V_BUVLO)
  • Battery short protection (BATSC)
  • Battery overcurrent protection (BATOCP)
  • Input current limit protection (ILIM)
  • Thermal regulation (TREG) and thermal shutdown (TSHUT)
  • Battery thermal fault protection (TS)
  • Watchdog and safety timer fault
  • System short protection
  • System overvoltage protection

Description for the BQ25181

The BQ25181 is a linear battery charger IC focusing on small solution size and low quiescent current for maximum battery life while providing the best thermal performance through a QFN package with a thermal pad. The PowerPath function enables continous power to the regulated system voltage (SYS) while charging the battery and providing accurate termination. The device can support up to 1-A charging and system loads of up to 2.5 A.

The BQ25181 is I²C compatible and is highly configurable providing flexibility and charging control for various applications. The BQ25181 is available in a small 10-pin DLH package.

The battery is charged using a standard Li-ion charge profile with three phases: precharge, constant current and constant voltage. A JEITA compatible batery pack thermistor monitor input (TS) is included, monitoring the battery temperature and automatically optimizing the charging parameters to prevent the battery from charging outsite its safe temperature range. The thermal regulation provides the maximum charge current while mantaining the device temperature. Dedicated /INT, /PG_GPO and /CE pins provide full customizability and intelligent diagnostics for reliable system operation.

The charger is also optimized for battery to battery charging with 3-V minimum input voltage operation and can withstand 25-V absolute maximum line transients. The device integrates a single push-button input and reset circuitry, eliminating the need for an external button controller reducing the total solution footprint.