PM6611N 2-4 Cells Li-ion, Li-FePO4 Battery Charger with SMBus Interface, N-Channel RBFET & BATFET Mosfet Selector

The PM6611N is a high efficiency battery charger with SMBus communication interface. It includes a synchronous switching DC-DC converter with N-channel high-side and low-side Power MOSFET drivers. The possibility to set the switching frequency with SMBus by choosing one of the two preset values of 350 kHz or 700 kHz assures the best trade-off between power conversion efficiency and application component cost and pcb size.

Integrated loop compensation network and soft-start allow the reduction of the number of external components.

The PM6611N integrates 2 charge pumps to drive N-channel BATFET and ACFET - RBFET MOSFETs.

The SMBus communication interface is used to set the battery charge current and voltage.

The PM6611N charges 2 to 4-series Li-Ion or LiFePO4cells, for mobile PC applications. It is available in a 16-pin, 3x3 mm, QFN package

技术特性

Buck converter
- Synchronous buck converter with N-channel high-side, low-side Power MOSFET integrated drivers
- 350 kHz or 700 kHz switching frequency, selectable with SMBus
- AC adapter input voltage range 9 V - 24 V
- 5 V bias input voltage supply
- Battery charge voltage range 2.5 V - 18 V
- ±0.5% charge voltage accuracy
- 0.1% cell charge voltage resolution
- ±3% charge current accuracy
- Overvoltage, overcurrent protection
- Battery, inductor, Power MOSFET short- circuit protection
- Internal loop compensation network
- Integrated soft-start
Selector
- N-channel BATFET MOSFET driver
- N-channel ACFET and RBFET MOSFET driver
System
- 1 mA quiescent supply current
- 17 μA - 35 μA sleep mode current (BATFET charge pump OFF - ON)
- Thermal shutdown

应用原理图

PM6611N 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
PM6611N	Preview		1000	VFQFPN 16 3x3x1.0	Tube

DATA BRIEF

描述	版本	大小
PM6611N : DB1548: 2 to 4-cell Li-ion, Li-FePO4 battery charger with SMBus interface, N-channel RBFET and BATFET MOSFET selectors	1	215KB