LINEAR TECHNOLOGY LTC1734 Manual

The LTC1734 is a low-cost, single-cell, constant-current/constant-voltage Li-Ion battery charger controller. It is a small and low-cost charger for single-cell lithium-ion batteries. It comes in 4.1V and 4.2V versions with 1% accuracy. Constant current can be set using an external resistor, and charge current can be monitored via voltage. It has automatic sleep mode and manual shutdown features.