MAX1737 Description
The MAX1737 is a switch-mode lithium-ion (Li+) battery charger that charges one to four cells. It provides a regulated charging current and a regulated voltage with only a ±0.8% total voltage error at the battery terminals. The external N-channel switch and synchronous rectifier provide high efficiency over a wide input voltage range.
MAX1737 Key Features
- Stand-Alone Charger for Up to Four Li+ Cells
- ±0.8% Accurate Battery Regulation Voltage
- Low Dropout: 98% Duty Cycle
- Safely Precharges Near-Dead Cells
- Continuous Voltage and Temperature Monitoring
- <1µA Shutdown Battery Current
- Input Voltage Up to +28V
- Safety Timer Prevents Overcharging
- Input Current Limiting
- Space-Saving 28-Pin QSOP