BQ25015 Series
Standalone 1-cell, 0.5-A Li-ion battery charger w/ synchronous buck converter,output adjustable
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Standalone 1-cell, 0.5-A Li-ion battery charger w/ synchronous buck converter,output adjustable
| Part | Charge Current - Max [Max] | Operating Temperature [Min] | Operating Temperature [Max] | Mounting Type | Battery Pack Voltage | Package / Case | Number of Cells | Interface | Battery Chemistry | Voltage - Supply (Max) [Max] | Supplier Device Package | Current - Charging | Function | Utilized IC / Part | Supplied Contents | Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ25015RHLTG4 | 500 mA | -40 °C | 125 °C | Surface Mount | 4.2 V | 20-VFQFN Exposed Pad | 1 | USB | Lithium Ion/Polymer | 6.5 V | 20-VQFN (3.5x4.5) | Constant - Programmable | ||||
Texas Instruments BQ25015EVM | Battery Charger | BQ25015 | Board(s) | Power Management | ||||||||||||
Texas Instruments BQ25015RHLT | 500 mA | -40 °C | 125 °C | Surface Mount | 4.2 V | 20-VFQFN Exposed Pad | 1 | USB | Lithium Ion/Polymer | 6.5 V | 20-VQFN (3.5x4.5) | Constant - Programmable |
Key Features
• Li-Ion Or Li-Pol Charge Management and Synchronous DC-DC Power Conversion In a Single ChipCharges and Powers the System from Either the AC Adapter or USB with Autonomous Power Source SelectionIntegrated USB Charge Control with Selectable 100 mA and 500 mA Charge RatesIntegrated Power FET and Current Sensor for Up to 500 mA Charge Applications AND 300 mA DC-DC Controller with Integrated FETsReverse Leakage Protection Prevents Battery DrainageAutomatic Power Save Mode For High Efficiency at Low Current, or Forced PWM for Frequency Sensitive ApplicationsAPPLICATIONSMP3 PlayersPDAs, SmartphonesDigital CamerasLi-Ion Or Li-Pol Charge Management and Synchronous DC-DC Power Conversion In a Single ChipCharges and Powers the System from Either the AC Adapter or USB with Autonomous Power Source SelectionIntegrated USB Charge Control with Selectable 100 mA and 500 mA Charge RatesIntegrated Power FET and Current Sensor for Up to 500 mA Charge Applications AND 300 mA DC-DC Controller with Integrated FETsReverse Leakage Protection Prevents Battery DrainageAutomatic Power Save Mode For High Efficiency at Low Current, or Forced PWM for Frequency Sensitive ApplicationsAPPLICATIONSMP3 PlayersPDAs, SmartphonesDigital Cameras
Description
AI
The bq25015/7 are highly integrated charge and power management devices targeted at space-limited bluetooth applications. The bq25015/7 devices offer integrated power FET and current sensor for charge control, reverse blocking protection, high accuracy current and voltage regulation, charge status, charge termination, and a highly efficient and low-power dc-dc converter in a small package.
The bq25015/7 devices charge the battery in three phases: conditioning, constant current and constant voltage. Charge is terminated based on minimum current. An internal charge timer provides a backup safety feature for charge termination. The bq25015/7 automatically re-starts the charge if the battery voltage falls below an internal threshold. The bq25015/7 automatically enters sleep mode when VCCsupply is removed.
The integrated low-power high-efficiency dc-dc converter is designed to operate directly from a single-cell Li-ion or Li-Pol battery pack. The output voltage is either adjustable from 0.7 V to VBAT, or fixed at 1.8 V (bq25017) and is capable of delivering up to 300-mA of load current. The dc-dc converter operates at a synchronized 1 MHz switching frequency allowing for the use of small inductors.
The bq25015/7 are highly integrated charge and power management devices targeted at space-limited bluetooth applications. The bq25015/7 devices offer integrated power FET and current sensor for charge control, reverse blocking protection, high accuracy current and voltage regulation, charge status, charge termination, and a highly efficient and low-power dc-dc converter in a small package.
The bq25015/7 devices charge the battery in three phases: conditioning, constant current and constant voltage. Charge is terminated based on minimum current. An internal charge timer provides a backup safety feature for charge termination. The bq25015/7 automatically re-starts the charge if the battery voltage falls below an internal threshold. The bq25015/7 automatically enters sleep mode when VCCsupply is removed.
The integrated low-power high-efficiency dc-dc converter is designed to operate directly from a single-cell Li-ion or Li-Pol battery pack. The output voltage is either adjustable from 0.7 V to VBAT, or fixed at 1.8 V (bq25017) and is capable of delivering up to 300-mA of load current. The dc-dc converter operates at a synchronized 1 MHz switching frequency allowing for the use of small inductors.