MAX745EAP Lithium-Ion Battery Charger IC

The MAX745EAP Lithium-Ion Battery Charging IC is designed to manage the charging of Li-Ion battery packs with up to 4A charging current without overheating. It offers ±0.75% regulation accuracy at the input terminals. The MAX745EAP IC uses low-cost 1% resistors for output voltage setting and an N-channel MOSFET as a power switch. This MAX745EAP Battery Charging IC employs dual control loops to regulate both voltage and current simultaneously, ensuring precise delivery to the target levels.

Applications of the MAX745EAP Battery Charging IC

1. Lithium-Ion Battery Packs
2. Desktop Cradle Chargers
3. Cellular Phones
4. Notebook Computers
5. Portable Devices

Specifications of the MAX745EAP Battery Charging IC

1. Supports charging of 1 to 4 lithium-ion cells with up to 4A current
2. ±0.75% voltage regulation accuracy using 1% resistors
3. High efficiency of 90% with low power dissipation
4. Incorporates an N-channel MOSFET switch
5. Accepts input voltages up to 24V
6. Maximum battery voltage rating of 18V
7. Operates at 300kHz PWM frequency for low noise and compact design
8. Stand-alone operation requiring no microcontroller

Documents:

MAX745EAP IC Datasheet