UCC2813-0 Datasheet, PDF (1/20 Pages) List of Unclassifed Manufacturers – Low Power Economy BiCMOS Current Mode PWM

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UCC2813Ć0/Ć1/Ć2/Ć3/Ć4/Ć5ĆQ1
LOWĆPOWER BICMOS CURRENTĆMODE PWM
D Qualified for Automotive Applications
D ESD Protection Exceeds 200 V Using
Machine Model (C = 200 pF, R = 0)
D 100-µA Typical Starting Supply Current
D 500-µA Typical Operating Supply Current
D Operation to 1 MHz
D Internal Soft Start
D Internal Fault Soft Start
SGLS245D − MAY 2004 − REVISED APRIL 2008
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 undervoltage lockout (UVLO) hysteresis of the UCC2813-2 and UCC2813-4
make these ideal choices for use in off-line power supplies.
The UCC2813-x series is specified for the automotive temperature range of −40_C to 125_C.
PART NUMBER
UCC2813-0
UCC2813-1
UCC2813-2
UCC2813-3
UCC2813-4
UCC2813-5
MAXIMUM DUTY CYCLE
100%
50%
100%
100%
50%
50%
REFERENCE VOLTAGE
5V
5V
5V
4V
5V
4V
TURN-ON THRESHOLD
7.2 V
9.4 V
12.5 V
4.1 V
12.5 V
4.1 V
TURN-OFF THRESHOLD
6.9 V
7.4 V
8.3 V
3.6 V
8.3 V
3.6 V
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.
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.
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Copyright  2008 Texas Instruments Incorporated
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