BQ24780 Series
SMBus 1-4 cell Buck battery charge controller to support hybrid power boost mode
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
SMBus 1-4 cell Buck battery charge controller to support hybrid power boost mode
| Part | Mounting Type | Operating Temperature [Max] | Operating Temperature [Min] | Battery Chemistry | Interface | Fault Protection | Package / Case | Supplier Device Package | Voltage - Supply (Max) [Max] | Number of Cells [Max] [custom] | Number of Cells [Min] [custom] |
|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24780SRUYR | Surface Mount | 85 °C | -40 °C | Multi-Chemistry | SMBus | Over Current, Over Voltage, Short Circuit | 28-WFQFN Exposed Pad | 28-WQFN (4x4) | 24 V | 4 | 1 |
Texas Instruments BQ24780SRUYT | Surface Mount | 85 °C | -40 °C | Multi-Chemistry | SMBus | Over Current, Over Voltage, Short Circuit | 28-WFQFN Exposed Pad | 28-WQFN (4x4) | 24 V | 4 | 1 |
Key Features
• Industrial Innovative Charge Controller With Hybrid Power Boost ModeAdapter and Battery Provides Power to System Together for Intel®CPU Turbo ModeUltra-Fast Transient Response of 150 µs to Enter Boost ModeHybrid Power Boost Mode from 4.5- to 24-V SystemCharge 1- to 4-Cell Battery Pack from 4.5- to 24-V AdapterHigh Accuracy Power and Current Monitoring for CPU ThrottlingComprehensivePROCHOTProfile± 2% Current Monitor Accuracy± 5% System Power Monitor Accuracy (PMON)Automatic NMOS Power Source Selection from Adapter or BatteryACFET Fast Turn on in 100 µsProgrammable Input Current, Charge Voltage, Charge and Discharge Current Limit±0.4% Charge Voltage (16-mV step)±2% Input Current (128-mA/step)±2% Charge Current (64-mA/step)±2% Discharge Current (512-mA/step)High IntegrationBattery LEARN FunctionBattery Present MonitorBoost Mode IndicatorLoop CompensationBTST DiodeEnhanced Safety Features for Overvoltage Protection, Overcurrent Protection, Battery, Inductor, and MOSFET Short-Circuit ProtectionSwitching Frequency: 600 kHz, 800 kHz, and1 MHzRealtime System Control on ILIM Pin to Limit Charge and Discharge Current0.65 mA Adapter Standby Quiescent Current for Energy StarIndustrial Innovative Charge Controller With Hybrid Power Boost ModeAdapter and Battery Provides Power to System Together for Intel®CPU Turbo ModeUltra-Fast Transient Response of 150 µs to Enter Boost ModeHybrid Power Boost Mode from 4.5- to 24-V SystemCharge 1- to 4-Cell Battery Pack from 4.5- to 24-V AdapterHigh Accuracy Power and Current Monitoring for CPU ThrottlingComprehensivePROCHOTProfile± 2% Current Monitor Accuracy± 5% System Power Monitor Accuracy (PMON)Automatic NMOS Power Source Selection from Adapter or BatteryACFET Fast Turn on in 100 µsProgrammable Input Current, Charge Voltage, Charge and Discharge Current Limit±0.4% Charge Voltage (16-mV step)±2% Input Current (128-mA/step)±2% Charge Current (64-mA/step)±2% Discharge Current (512-mA/step)High IntegrationBattery LEARN FunctionBattery Present MonitorBoost Mode IndicatorLoop CompensationBTST DiodeEnhanced Safety Features for Overvoltage Protection, Overcurrent Protection, Battery, Inductor, and MOSFET Short-Circuit ProtectionSwitching Frequency: 600 kHz, 800 kHz, and1 MHzRealtime System Control on ILIM Pin to Limit Charge and Discharge Current0.65 mA Adapter Standby Quiescent Current for Energy Star
Description
AI
The bq24780S device is a high-efficiency, synchronous battery charger, offering low component count for space-constrained, multi-chemistry battery charging applications.
The bq24780S device supports hybrid power boost mode (previously called "turbo boost mode"). It allows battery discharge energy to system when system power demand is temporarily higher than adapter maximum power level. Therefore, adapter does not crash.
The bq24780S device uses two charge pumps to separately drive N-channel MOSFETs (ACFET, RBFET, and BATFET) for automatic system power source selection.
Through SMBus, system power management microcontroller programs input current, charge current, discharge current, and charge voltage DACs with high regulation accuracies.
The bq24780S device monitors adapter current (IADP), battery discharge current (IDCHG), and system power (PMON) for host to throttle back CPU speed or reduce system power when needed.
The bq24780S device charges 1-, 2-, 3-, or 4-series Li+ cells.
The bq24780S device is a high-efficiency, synchronous battery charger, offering low component count for space-constrained, multi-chemistry battery charging applications.
The bq24780S device supports hybrid power boost mode (previously called "turbo boost mode"). It allows battery discharge energy to system when system power demand is temporarily higher than adapter maximum power level. Therefore, adapter does not crash.
The bq24780S device uses two charge pumps to separately drive N-channel MOSFETs (ACFET, RBFET, and BATFET) for automatic system power source selection.
Through SMBus, system power management microcontroller programs input current, charge current, discharge current, and charge voltage DACs with high regulation accuracies.
The bq24780S device monitors adapter current (IADP), battery discharge current (IDCHG), and system power (PMON) for host to throttle back CPU speed or reduce system power when needed.
The bq24780S device charges 1-, 2-, 3-, or 4-series Li+ cells.