Positive and Negative Overvoltage Protection with Internal Low RON N-MOSFETs and Reverse Charge Control Pin

The NCP370 is an overvoltage, overcurrent and reverse control device. Two main modes are available by setting logic pins. First mode is Direct Mode from Wall−Adapter to the system. In this mode the system is both positive and negative over−voltage protected up to +28 V and down to −28 V. The wall adapter (or AC/DC charger) is disconnected from the system if the input voltage exceeds the overvoltage (OVLO) or undervoltage (UVLO) thresholds. At power up, the Vout turns on 30 ms after the Vin exceeds the undervoltage threshold.
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 28 V
• Negative Voltage Protection Down to −28 V
• Reverse Charge Control: REV
• Direct Charge Control: DIR
• Overcurrent Protection
• Thermal Shutdown
• On−chip Low RDS(on) NMOS Transistors: Typical 130 mΩ
• Overvoltage Lockout (OVLO)
• Undervoltage Lockout (UVLO)
• Soft−Start
• 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
• 12 Lead TLLGA 3x3 mm Package
• This is a Pb−Free Device

Typical Applications
• Cell Phones
• Camera Phones
• Digital Still Cameras
• Personal Digital Applications
• MP3 Players