Product parameters

Funtion：Over Voltage Protection Controller

Vin Range：≤32V

Package：SOT23-3

On-chip Power MOSFET：No

Threshold：6.9V

Threshold A：±1%

Hysteresis：0.25V

Delayed：1.2uS

General Descriptions:

The CN36B overvoltage protection controller is used with an external P-channel MOSFET to isolate sensitive electronic devices from destructive voltage spikes and surges. It is specially designed to prevent large voltage transients from damaging sensitive circuitry, the voltage transients may be associated with powering up, load dumping, etc.

When potentially damaging voltage levels on input supply are detected by the CN36B, the input supply is disconnected from the load before any damage can occur.

Internal circuitry includes a band-gap reference, oscillator, timer, over-voltage comparator, under-voltage comparator and control logic. CN36B’s over-voltage threshold is 6.9V typically, and under-voltage threshold is 3.43V typically. which makes CN36B very suitable for 5V input supply. When the input voltage is above the over-voltage protection threshold, or below the under-voltage threshold, CN36B’s GATE pin transitions to logic high to turn off the external P-channel MOSFET.

CN36B is available in 3-pin SOT23 package.

Applications:

l  Electrical Appliances

l  Portable Devices

l  Medical Equipment

              l  Audio Systems

Features:

l  Input Voltage up to 32V

l  Over-voltage Protection Threshold: 6.9V

l  Under-voltage Threshold: 3.43V

l  Operating Current: 68uA@VIN=5V

l  External P-channel MOSFET Driven by GATE pin

l  Over-voltage Turn-off Time: 1.2uS with 2nF Capacitor between VIN and GATE pin

l  GATE pin Logic High: VIN

l  GATE pin Logic Low: 0V

l  Operating Temperature Range:－40℃ to 85℃

l  Available in SOT23-3 Package

l  Lead-free, rohs-Compliant and Halogen Free