带SMBus接口2节/3节电池适用NDVC充电器_BD99950MUV
BD99950MUV是高效率的同步整流型NVDC系统稳压器及电池充电器控制器。为切换系统供电，备有对N通道MOSFET个别进行驱动的2个电荷泵功能。充电电压、充电电流、AC适配器电流、最小系统电压可通过SMBus进行编程。将PWM开关频率通过SMBus设定为最大1.2MHz，可以实现线圈的小型化。
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特性：
Grade
Standard
Supply Voltage(Min.)[V]
6.0
Supply Voltage(Max.)[V]
24.0
Charge Voltage [V]
8.4±0.5%
Operating Temperature (Min.)[°C]
-10
Operating Temperature (Max.)[°C]
85
特点：
- N-channel MOSFETs available for Battery or
Adapter Selection via Internal Charge Pumps - Fast DPM Transient Response under Turbo Mode (<100µs)
- Linear Mode Trickle Charge via BGATE Charge Pump
- Low Operating Current BGATE Charge Pump at 17µA (typical)
- MLCC Output Capacitor
- High Light Load Efficiency for Energy Star and ErP Lot6
- Fast Load Current Transient Response under
No Battery or Dead Battery conditions - NMOS-NMOS Synchronous Step-Down Controller
- Programmable 600kHz-1.2MHz Switching Frequency
- Programmable Charge Voltage (16mV resolution),
Charger Current (64mA resolution),
Input Current (64mA resolution),
Minimum System Voltage (64mV resolution) - ±0.5% Charge Voltage Accuracy
- ±3% Charge Current Accuracy
- ±3% Input Current Accuracy
- ±0.5% Minimum System Voltage Accuracy
- ±2% 20x Input Current Amplifier Output Accuracy
- Integrated Loop Compensation
- Battery Learn Function
- AC Adapter Operating Range : 6.0V to 24.0V
- Off-State Battery Discharge Current at 15µA
- 20pin 3.5mm×3.5mm QFN Package