DatasheetsPDF.com

UCC15702

Unitrode
Part Number UCC15702
Manufacturer Unitrode
Description Advanced Voltage Mode Pulse Width Modulator
Published Jan 3, 2020
Detailed Description application INFO available Advanced Voltage Mode Pulse Width Modulator UCC15701/2 UCC25701/2 UCC35701/2 FEATURES DESC...
Datasheet PDF File UCC15702 PDF File

UCC15702
UCC15702

Overview
application INFO available Advanced Voltage Mode Pulse Width Modulator UCC15701/2 UCC25701/2 UCC35701/2 FEATURES DESCRIPTION 700kHz Operation Integrated Oscillator/ Voltage Feed Forward Compensation Accurate Duty Cycle Limit Accurate Volt-second Clamp Optocoupler Interface Fault Counting Shutdown Fault Latch off or Automatic Shutdown Soft Stop Optimized for Synchronous Rectification 1A Peak Gate Drive Output The UCC35701/UCC35702 family of pulse width modulators is intended for isolated switching power supplies using primary side control.
They can be used for both off-line applications and DC/DC converter designs such as in a distributed power system architecture or as a telecom power source.
The devices feature low startup current, allowing for efficient off-line starting, yet have sufficient output drive to switch power MOSFETs in excess of 500kHz.
Voltage feed forward compensation is operational over a 5:1 input range and provides fast and accurate response to input voltage changes over a 4:1 range.
An accurate volt-second clamp and maximum duty cycle limit are also featured.
Fault protection is provided by pulse by pulse current limiting as well as the ability to latch off after a programmable number of repetitive faults has occurred.
130mA Start-up Current Two UVLO options are offered.
UCC35701 family has turn-on and turn-off 750mA Operating Current thresholds of 13V/9V and UCC35702 family has thresholds of 9.
6V/8.
8V.
The UCC35701/2 and the UCC25701/2 are offered in the 14 pin SOIC (D), 14 pin PDIP (N) or in 14 pin TSSOP (PW) packages.
The UCC15701/2 is offered in the 14 pin CDIP (J) package.
TYPICAL APPLICATION DIAGRAM VIN S UP P LY VREF R4 R5 CF RF R1 R2 VFF 6 R3 7 RT VDD CT UCC35701 10 CT 3 R6 C1 R7 9 VS CLAMP 11 S YNC CS 14 SS OUT 4 ILIM 2 1 COUNT C3 12 VREF P GND 5 R8 R10 C2 RCS R8 RGND 8 FB GND 13 R11 C5 R12 C6 VOUT R13 R14 C7 R15 SLUS293C - JANUARY 2000 - REVISED JUNE 2005 C6 VOUT C4 VIN RETURN UDG-98005-1 ABSOLUTE...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)