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UCC28130/1/2/3/4/5Q1
LOW POWER BICMOS CURRENT MODE PWM
SGLS245B MAY 2004 = REVISED APRIL 2006
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Qualified for Automotive Applications
D Customer-Specific Configuration Control
Can Be Supported Along With
Major-Change Approval
D ESD Protection Exceeds 200 V Using
Machine Model (C = 200 pF, R = 0)
D 100 A Typical Starting Supply Current
D 500 A Typical Operating Supply Current
D Operation to 1 MHz
D Internal Soft Start
D Internal Fault Soft Start
D Internal Leading-Edge Blanking of the
Current Sense Signal
D 1-A Totem-Pole Output
D 70 ns Typical Response from
Current-Sense to Gate Drive Output
D 1.5% Tolerance Voltage Reference
D Same Pinout as UC3802, UC3842, and
UC3842A
description
The UCC2813-0/-1/-2/-3/-4/-5 family of high-speed, low-power integrated circuits contain all of the control and
drive components required for off-line and dc-to-dc fixed frequency current-mode switching power supplies with
minimal parts count.
These devices have the same pin configuration as the UC2842/3/4/5 family and also offer the added features
of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.
The UCC2813-0/-1/-2/-3/-4/-5 family offers choice of maximum duty cycle and critical voltage levels. Lower
reference parts such as the UCC2813-3 and UCC2813-5 fit best into battery operated systems, while the higher
reference and the higher UVLO hysteresis of the UCC2813-2 and UCC2813-4 make these ideal choices for use
in off-line power supplies.
The UCC2813-xQ-Q1 series is specified for the automotive temperature range of 40
_C to 125_C.
PART NUMBER
MAXIMUM DUTY CYCLE
REFERENCE VOLTAGE
TURN-ON THRESHOLD
TURN-OFF THRESHOLD
UCC2813-0
100%
5 V
7.2 V
6.9 V
UCC2813-1
50%
5 V
9.4 V
7.4 V
UCC2813-2
100%
5 V
12.5 V
8.3 V
UCC2813-3
100%
4 V
4.1 V
3.6 V
UCC2813-4
50%
5 V
12.5 V
8.3 V
UCC2813-5
50%
4 V
4.1 V
3.6 V
Copyright
2006 Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.