The MAX1926ETC+ is a switch-mode, 1-cell Li+ charger in 12 pin TQFN package. This device use an external PMOS pass element in step-down configuration. Charge current is programmable and an external capacitor sets the maximum charge time. It includes automatic input power detection (active-low ACON output), logic-controlled enable and temperature monitoring with an external thermistor. MAX1926 charges inputs between 4.25V and 12V and features two precondition levels to restore near-dead cells.
±0.75% battery regulation voltage
Set charge current with one resistor
Automatic input power sense
LED (or logic-out) charge status and fault indicator