NCP367 is a charge path protection device which allows disconnecting the systems from its output pin in case wrong charging conditions are detected. The system is positive overvoltage protected up to +30 V. Thanks to a very low current consumption, the USB charge is compatible with this integrated component.
This device uses internal PMOS FET, making external devices unnecessary, which reduces the system cost and PCB area of the application board. First, NCP367 is able to instantaneously disconnect the output from the input if the input voltage exceeds the overvoltage threshold. Additional overcurrent protection function allows turning off internal PMOS FET when the charge current exceeds current limit, which is externally selectable.
The current limit value can be modified with control logic pin to divide it by internal gain, allowing USB 100 mA/500 mA charging or USB/Wall adapter charging up to overcurrent threshold. At the same time, Li ion Battery voltage is continuously monitored, providing more safety during the charge. Thermal shutdown protection is also available.
NCP367 provides a negative going flag (FLAG) output, which alerts the system that a fault has occurred as overvoltage (power supply or battery voltage), overcurrent or thermal event.
In addition, the device has ESD−protected input (15 kV Air) when bypassed with a 1 μF or larger capacitor.

FEATUREs
• Overvoltage Protection Up to + 30 V
• Fast Turn Off Time
• Very Low Current Consumption/USB Compliant
• Li ion Battery Voltage Monitoring
• Overvoltage Lockout (OVLO)
• Undervoltage Lockout (UVLO)
• Overcurrent Protection Externally Adjustable (OCP) up to 2.8 A
• Thermal Shutdown
• Shutdown EN and Gain Input Pins
• Soft−Start to Eliminate Inrush Current
• Alert FLAG Output
• Compliance to IEC61000−4−2 (Level 4)
   8 kV (Contact), 15 kV (Air)
• ESD Ratings:
   Machine Model = B
   Human Body Model = 2
• 8 Lead DFN 2.2x2 mm Package
• These are Pb−Free Devices

Typical Application
• USB Devices
• Mobile Phones
• Peripheral
• Personal Digital Applications
• MP3 Players