Product Summary

The UCC25702PWTRG4 is a pulse width modulator intended for isolated switching power supplies using primary side control. The UCC25702PWTRG4 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 UCC25702PWTRG4 features low startup current, allowing for efficient off-line starting, yet have sufficient output drive to switch power MOSFETs in excess of 500kHz.

Parametrics

UCC25702PWTRG4 absolute maximum ratings: (1)Supply voltage (Supply current limited to 20mA): 15V; (2)Supply Current: 20mA; (3)Input pins ( ILIM,VFF,RT,CT,VSCLAMP,SYNC,SS): 6V; (4)Output Current (OUT) DC: +/–180mA; (5)Output Current (OUT) Pulse (0.5ms): +/–1.2A; (6)Storage Temperature: –65 to +150℃; (7)Junction Temperature: –55 to +150℃; (8)Lead Temperature (Soldering, 10 sec.): +300℃.

Features

UCC25702PWTRG4 features: (1)700kHz Operation; (2)Integrated Oscillator/ Voltage Feed Forward Compensation; (3)Accurate Duty Cycle Limit; (4)Accurate Volt-second Clamp; (5)Optocoupler Interface; (6)Fault Counting Shutdown; (7)Fault Latch off or Automatic Shutdown; (8)Soft Stop Optimized for Synchronous Rectification; (9)1A Peak Gate Drive Output; (10)130μA Start-up Current; (11)750μA Operating Current.

Diagrams

UCC25702PWTRG4 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
UCC25702PWTRG4
UCC25702PWTRG4

Texas Instruments

Voltage Mode PWM Controllers Adv Voltage Mode

Data Sheet

0-1505: $2.51
1505-2000: $2.42
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
UCC2305
UCC2305

Other


Data Sheet

Negotiable 
UCC2305DW
UCC2305DW

Texas Instruments

LED Lighting Drivers HID LAMP CONTROLLER

Data Sheet

0-1: $9.58
1-25: $9.16
25-100: $6.88
100-250: $6.74
UCC2305DWG4
UCC2305DWG4

Texas Instruments

LED Lighting Drivers HID LAMP CONTROLLER

Data Sheet

0-1: $7.28
1-25: $7.07
25-100: $6.88
100-250: $6.34
UCC2305N
UCC2305N

Texas Instruments

LED Lighting Drivers HID LAMP CONTROLLER

Data Sheet

0-1: $10.91
1-25: $9.59
25-100: $7.84
100-250: $7.67
UCC2305NG4
UCC2305NG4

Texas Instruments

LED Lighting Drivers HID Lamp Cntrlr

Data Sheet

0-1: $8.29
1-25: $8.06
25-100: $7.84
100-250: $7.22
UCC2305TDWRQ1
UCC2305TDWRQ1

Texas Instruments

LED Lighting Drivers AC HID Lamp

Data Sheet

0-725: $5.71
725-1000: $5.38