نظرة عامة على المنتج
The BQ24765RUVR from Texas Instruments is a high-efficiency synchronous buck battery charger IC with two integrated 30 mΩ NMOS power MOSFETs. Controlled via SMBus, it charges 2-4 series Li+ cells (and other chemistries) at up to 10 A, targeting notebook computers, portable terminals, and battery backup systems.
المواصفات الرئيسية
| جهد الإدخال | 7V to 24V (30V abs max) |
| Charge Voltage | 1.024V to 19.2V (DAC programmable) |
| Charge Current | Up to 10 A (8.064 A DAC max) |
| تردد التحويل | 700 kHz |
| متفتتات MOSFETs | 2x 30 mΩ integrated NMOS |
| Efficiency | >95% |
| الواجهة | SMBus (I2C-compatible) |
| Cell Count | 2, 3, or 4 series Li+ |
| Operating Temp | -40°C to +125°C (junction) |
| الحزمة | 34-pin VQFN (7 x 3.5 mm) |
الميزات
- Two integrated 30 mΩ NMOS power MOSFETs for >95% efficiency and low BOM count
- 700 kHz switching frequency allows small 5×5 mm inductor for compact design
- SMBus-programmable charge voltage (0.5% accuracy), charge current (3% accuracy), and input current limit (3% accuracy)
- Dynamic Power Management (DPM) prevents adapter overloading
- Thermal regulation loop reduces charge current when junction reaches 120°C
التطبيقات
- Notebook and ultra-mobile computer battery charging
- Portable data-capture terminals and barcode scanners
- Portable medical diagnostic equipment
- Battery bay chargers and docking stations
- Battery backup and UPS systems