RT9527AGQW

The<bold> RT9527A</bold> can be powered up from an AC adapter or USB (Universal Serial Bus) port inputs. The RT9527A enters sleep mode when VIN power is removed. The RT9527A optimizes the charging task by using a control algorithm, which includes pre-charge mode, fast-charge mode and constant voltage mode. The charging task is kept in constant voltage mode to hold the battery in a full charge condition. The charge current is adjustable via an external resistor. The internal thermal feedback circuitry regulates the die temperature to optimize the charge rate for all ambient temperatures.

• 28v maximum rating for ac adapter
• Internal integrated power FETs
• Adjustable charging current
• Programmable safe charge timer
• NTC thermistor input
• Battery reverse protection
• Iset pin short protection
• Charge status indicator
• AC adapter power good status indicator
• End of charge current is 10% of fast-charge current
• Under-voltage protection
• Over-voltage protection
• Thermal feedback optimized charge rate

Applications

Portable Devices, Smartphones, Consumer Electronics