BQ24780S 24780 BQ24780 charge controller WQFN 28 pin

BQ24780S - Battery charge controller with Hybrid Power Boost mode

The BQ24780S is a high-performance battery charge controller with support for Hybrid Power Boost mode. The chip enables power sharing between an external adapter and the battery to provide stable system power even under high load, such as Intel® CPU Turbo Mode. It is designed for applications requiring precise power management and fast response to load changes.

Key features:

• Hybrid Power Boost mode: Allows power to be supplied from both the battery and the adapter simultaneously.
• Input voltage range: 4.5 V - 24 V.
• Battery support: Charges packs of 1 to 4 Li-ion cells.
• High monitoring accuracy: ±2% accuracy of current measurement, ±5% accuracy of system power measurement.
• PROCHOT function: CPU load monitoring and control to avoid overloading the power supply.
• Advanced safety features: Overvoltage (OVP), overcurrent (OCP), FET short circuit and overheating protection.
• Switching frequency: 600 kHz, 800 kHz and 1 MHz.
• Low standby power consumption: 0.65 mA when powered by the adapter.

Applications:

• Notebooks, Ultrabooks, tablets.
• Mobile terminals.
• Medical and industrial equipment.
• Portable devices.

Housing:

• WQFN (28 pin), 4.00 × 4.00 mm.