Описание
The ISL9214A is a fully integrated low-cost single-cell Li-ion or Li-polymer battery charger. The charger accepts two power inputs, normally one from a USB (Universal Serial Bus) port and the other from a desktop cradle. The ISL9214A is an ideal charger for smart handheld devices that need to communicate with a personal computer via USB. The ISL9214A features 28V maximum voltages for both the cradle and the USB inputs. Due to the 28V rated inputs, low-cost, large output tolerance adapters can be used safely. When both inputs are powered, the cradle input is used to charge the battery.
- Complete Charger for Single-Cell Li-ion/Polymer Batteries
- Dual Input Power Sources for Cradle and USB
- Low Component Count
- Integrated Pass Elements
- Fixed 380mA USB Charge Current
- Programmable Cradle Charge Current
- Charge Current Thermaguard™ for Thermal Protection
- 28V Maximum Voltages for Cradle and USB Inputs
- Adapter Presence and Charge Indications
- Less than 0.5µA Leakage Current Off the Battery When No Input Power Attached
- Programmable End-of-Charge Current
- Ambient Temperature Range: -40°C to +85°C
- No External Blocking Diode Required
