Controller IC Chip - MOFSET BQ24741 BQ24741RHDR BQ24741RHDR BQ24741 chip for laptop - Integrated Laptop Chip (Code 1-CHIP0341)

Controller IC Chip - MOFSET BQ24741 BQ24741RHDR BQ24741 chip for laptop- Integrated portable calculator chip(SKU.1-CHIP0341)

Li-Ion or Li-Polymer Battery Charger with Low lq and Accurate Trickle Charge

The bq24741 is a high-efficiency, synchronous battery charger with integrated compensation, offering low component count for space-constrained Li-ion or Li-polymer battery charging applications. Ratiometric charge current and voltage programming allows high regulation accuracies, and can be either hardwired with resistors or programmed by the system power-management microcontroller using a DAC or GPIOs. The bq24741 charges two, three, or four series Li+ cells, supporting up to 10 A of charge current, and is available in a 28-pin, 5x5-mm2 thin QFN package.

NMOS-NMOS Synchronous Buck Converter Resistor-Programmable Switching Frequency between 300 kHz and 800 kHz 8 V-24 V Input Voltage Operation Range Cells Pin Support Two to Four Li-Ion Cells up to 18 V Battery Voltage Analog Inputs with Ratiometric Programming via Resistors or DACIGPIO — Charge Voltage (4-4.512 V/cell) — Charge Current (up to 10 A) — Adapter Current Limit for DPM High-Accuracy Voltage and Current Regulation — ±0.5% Charge Voltage Accuracy — ±3% Charge Current Accuracy — ±3% Adapter Current Accuracy — ±2% Input Current Sense Amp Accuracy 150 mA Trickle-charge Current with ±33% Accuracy Down to Zero Battery Voltage Safety Protection — Input Overvoltage Protection — Battery Overvoltage Protection — Charger Overcurrent Protection — Thermal Shutdown Protection Status and Monitoring Outputs — Adapter Present Indicator — Programmable Input Power Detect with Adjustable Threshold — Dynamic Power Management (DPM) with Status Indicator — Current Drawn from Input Source Charge Enable Pin Internal Soft-Start Internal Loop Compensation 25 ns Minimum Driver Dead-Time and 99.5% Maximum Effective Duty Cycle 28-pin, 5x5-mm2 QFN package Energy Star Low Iq — < 10 xA Off-State Battery Discharge Current — < 1.5 mA Off-State Input Quiescent Current

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