onsemi NCP345
The NCP345 overvoltage protection circuit (OVP) protects sensitive electronic circuitry from overvoltage transients and power supply faults when used in conjunction with an external P−channel FET. The device is designed to sense an overvoltage condition and quickly disconnect the input voltage supply from the load before any damage can occur. The OVP consists of a precise voltage reference, a comparator with hysteresis, control logic, and a MOSFET gate driver.| Part No. | NCP345 |
|---|---|
| Datasheet | NCP345 Download |
| Manufacturer |  onsemi |
| Description | Overvoltage Protection |
| Buy | Stock & Price |
FEATURES
● Overvoltage Turn−Off Time of less than 1.0 msec● Accurate Voltage Threshold of 6.85 V (nominal)
● Undervoltage Lockout Protection
● CNTRL Input Compatible with 1.8 V Logic Levels
● Pb−Free Package is Available Typical
APPLICATIONS
● Cellular Phones● Digital Cameras
● Portable Computers and PDAs
● Portable CD and other Consumer Electronics 5 1 THIN SOT−23−5 SN SUFFIX CASE 483 PIN CONNECTIONS & MARKING DIAGRAM RADAYWG G OUT 1 GND 2 5 VCC CNTRL 3 4 IN (Top View) RAD = Specific Device Code A = Assembly Location Y = Year W = Work Week G = Pb−Free Package (Note: Microdot may be in either location) ORDERING INFORMATION Device Package Shipping† NCP345SNT1 SOT−23−5 NCP345SNT1G SOT−23−5 (Pb−Free) 3000 / Tape & Reel (7 inch Reel) †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. AC/DC Adapter or Accessory Charger P−CH Schottky Diode VCC IN Undervoltage Lock Out + − Logic FET Driver OUT + C1 LOAD Vref NCP345 GND CNTRL Microprocessor port Note: This device contains 89 active transistors Figure 1.
