bq24705 Overview
Description
The bq24705 is a high-efficiency, synchronous battery charger with integrated compensation, offering low component count for space-limited multi-chemistry battery charging applications. Charge current and voltage programming allows high regulation accuracies, and can be either hardwired with resis.
Key Features
- 2 NMOS-NMOS Synchronous Buck Converter with 600 kHz Frequency and >95% Efficiency
- 30-ns Minimum Driver Dead-time and 99.5% Maximum Effective Duty Cycle
- Integration – Internal Loop Compensation – Internal Soft-Start
- Safety – Input Overvoltage Protection (OVP) – Dynamic Power Management (DPM) with Status Indicator
- Supports Two, Three, or Four Li+ Cells
- 5 – 24 V AC/DC-Adapter Operating Range
- Supports Any Battery Chemistry: Li+, NiCd, NiMH, Lead Acid, etc
- Charge Enable
- 10-µA Off-State Battery Current
- 24-pin, 4x4-mm QFN Package
