6 Typical Application

The BQ25172 is a small 2mm × 2mm 8 pin QFN device that requires few external components to configure. This device supports from 1 to 6 NiMH cell in series. Input voltage up to 18V. External resistors are used to configure the cell count and intermittent charge, timer from 4 hours to 22 hours and charge current 10mA to 800mA.

3 Cell Typical Application:

• VSET (18kΩ) – 3 Cell + Intermittent Chg
• TMR (27kΩ) – 6 hour charge time
• ISET (3kΩ) – Charge Current 100mA
• TS – 10kΩNTC (103AT-2)