FAN54151: High Current Charging Switch with Protection

The FAN54151 is a low loss, high current, I2C controlled switch.

Built in protection monitors the ICs input and output for over- and under-voltage as well as over- and under-current. The system protection is provided by controlling the gate voltages of a pair of N-channel MOSFETs to ensure that the output stays within a safe operating range. If a fault is detected, the FAN54151 will turn off the N-channel FETs and notify the host system via configurable interrupts.

Additionally, the FAN54151 includes an integrated temperature sensor and battery cell voltage monitor that provides additional protection.

The FAN54151 utilizes a 20-Bump, 0.5 mm pitch WLCSP package.

Features

• Integrated Back-to-Back Common Source N-channel MOSFETs with combined R_ON = 17 mΏ
• Over-Voltage Input Protection to +20 V
• Hardware-based Safety and Protection for:
  • Input Over-Voltage Protection and Lockout
  • Input Under-Voltage Lockout
  • Fast and Slow Output Over-Voltage Protection
  • Over-Current Protection with Selectable Limits
  • Safe Operating Temperature
  • Charger Detach Protection
• Input Over-Voltage Protection and Lockout
• Input Under-Voltage Lockout
• Fast and Slow Output Over-Voltage Protection
• Over-Current Protection with Selectable Limits
• Safe Operating Temperature
• Charger Detach Protection
• True Reverse Current Blocking (TRCB)
• Fully Integrated I²C Slave with Configurable Address
• Configurable Host Interrupts