BQ24024 Series
Dual input USB/AC Adpater 1-cell Li-ion battery charger w/Term Enable & temp sense in QFN-11
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Dual input USB/AC Adpater 1-cell Li-ion battery charger w/Term Enable & temp sense in QFN-11
| Part | Battery Pack Voltage | Voltage - Supply (Max) [Max] | Operating Temperature [Max] | Operating Temperature [Min] | Mounting Type | Current - Charging | Charge Current - Max [Max] | Fault Protection | Package / Case | Interface | Programmable Features | Supplier Device Package | Number of Cells | Battery Chemistry |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24024DRCR | 4.2 V | 6.5 V | 125 ¯C | -40 °C | Surface Mount | Constant - Programmable | 500 mA | Over Temperature | 10-VFDFN Exposed Pad | USB | Current, Timer | 10-VSON (3x3) | 1 | Lithium Ion/Polymer |
Key Features
• Small 3 mm × 3 mm MLP PackageCharges and powers Systems from Either AC Adapter or USB With Autonomous power-Source SelectionIntegrated USB Control With Selectable 100 mA and 500 mA Charge RatesIdeal for Low-Dropout Charger Designs for Single-Cell Li-Ion or Li-pol Packs in Space Limited portable applicationsIntegrated power FET and Current Sensor for Up to 1-A Charge applications From AC AdapterPrecharge Conditioning With Safety Timerpower Good (AC Adapter Present) Status OutputOptional Battery Temperature Monitoring Before and During ChargeAutomatic Sleep Mode for Low-power ConsumptionAPPLICATIONSPDAs, MP3 PlayersDigital CamerasInternet appliancesSmartphonesbqTINY is a trademark of Texas Instruments.Small 3 mm × 3 mm MLP PackageCharges and powers Systems from Either AC Adapter or USB With Autonomous power-Source SelectionIntegrated USB Control With Selectable 100 mA and 500 mA Charge RatesIdeal for Low-Dropout Charger Designs for Single-Cell Li-Ion or Li-pol Packs in Space Limited portable applicationsIntegrated power FET and Current Sensor for Up to 1-A Charge applications From AC AdapterPrecharge Conditioning With Safety Timerpower Good (AC Adapter Present) Status OutputOptional Battery Temperature Monitoring Before and During ChargeAutomatic Sleep Mode for Low-power ConsumptionAPPLICATIONSPDAs, MP3 PlayersDigital CamerasInternet appliancesSmartphonesbqTINY is a trademark of Texas Instruments.
Description
AI
The bqTINY-II series are highly-integrated, flexible Li-Ion linear charge and system power management devices for space-limited charger applications. In a single monolithic device, the bqTINY-II offers integrated USB-port and ac-adapter supply management with autonomous power-source selection, power-FET and current-sensor interfaces, high-accuracy current and voltage regulation, charge status, and charge termination.
The bqTINY-II automatically selects the USB-port or the ac-adapter as the power source for the system. In the USB configuration, the host can select from two preset charge rates of 100 mA or 500 mA. In the ac-adapter configuration, an external resistor sets the system or charge current.
The bqTINY-II charges 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 for charge termination. The bqTINY-II automatically restarts the charge if the battery voltage falls below an internal threshold. The bqTINY-II automatically enters sleep mode when both supplies are removed.
Different versions of the bqTINY-II offer many additional features. These include a temperature-sensor input for detecting hot or cold battery packs, a power-good output (PG) indicating the presence of input power, a TTL-level charge-enable input (CE) used to disable or enable the charge process, and a TTL-level timer and taper-detect enable input (TTE) used to disable or enable the fast-charge timer and charge termination.
The bqTINY-II series are highly-integrated, flexible Li-Ion linear charge and system power management devices for space-limited charger applications. In a single monolithic device, the bqTINY-II offers integrated USB-port and ac-adapter supply management with autonomous power-source selection, power-FET and current-sensor interfaces, high-accuracy current and voltage regulation, charge status, and charge termination.
The bqTINY-II automatically selects the USB-port or the ac-adapter as the power source for the system. In the USB configuration, the host can select from two preset charge rates of 100 mA or 500 mA. In the ac-adapter configuration, an external resistor sets the system or charge current.
The bqTINY-II charges 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 for charge termination. The bqTINY-II automatically restarts the charge if the battery voltage falls below an internal threshold. The bqTINY-II automatically enters sleep mode when both supplies are removed.
Different versions of the bqTINY-II offer many additional features. These include a temperature-sensor input for detecting hot or cold battery packs, a power-good output (PG) indicating the presence of input power, a TTL-level charge-enable input (CE) used to disable or enable the charge process, and a TTL-level timer and taper-detect enable input (TTE) used to disable or enable the fast-charge timer and charge termination.