ISL9201 - Renesas

ISL9201 Li-ion Battery Charger

VIN (Pin 1) VIN is the input power source. Connect to a wall adapter. GND (Pin 2) GND is the connection to system ground. STATUS (Pin 3) STATUS is an open-drain output indicating charging and inhibit states. The STATUS pin is pulled LOW when the charger is charging a battery. It will be turned into high impedance when the charge current drops to IMIN. This h.

Features

• Complete Charger for Single-Cell Li-ion/Polymer Batteries
• Integrated Pass Element and Current Sensor
• No External Blocking Diode Required
• Low Component Count and Cost
• 25mV Voltage Accuracy Over-Temperature and Input Voltage Range
• 20mV Voltage Accuracy at Room Temperature
• Programmable Charge Current
• Charge Current Thermal Foldback for Thermal Protection (ThermaguardTM)
• Trickle Charge for Fully Discharged Batteries
• Power Presence and Charge/EOC Indications
• Less than 4µA Leakage Current off the Battery when No Input Power Attached or Charger Disabled
• Ambient Temperature Ran.