The PM6612 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 switching frequency.
The PM6612 is a high-efficiency battery charger designed for 2 to 4-series Li-ion or LiFePO4 cells, specifically targeting mobile PC applications such as UMPCs, MID devices, tablets, and notebooks. It features a synchronous buck converter with integrated N-channel high-side and low-side power MOSFET drivers, eliminating the need for external power switches.
| Battery charge voltage range | 2.5 V - 18 V |
|---|---|
| Charge voltage accuracy | +0.5% |
| Cell charge voltage resolution | 0.1% |
| Charge current accuracy | +3% |
| Input voltage range | 9 V - 24 V |
| Switching frequency | 350 kHz or 700 kHz |
| Package type | QFN3x3 20L |
The PM6612 charges 2 to 4-series Li-ion or LiFePO4 cells.
The switching frequency is selectable via SMBus between 350 kHz and 700 kHz.