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UCC2813QPWR-3Q1 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
稳压芯片
封装:
TSSOP-8
描述:
具有 4.1V/3.6V UVLO 和 100% 占空比的汽车类经济型单端 1MHz 电流模式 PWM 控制器 8-TSSOP -40 to 125
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UCC2813QPWR-3Q1数据手册
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SGLS245D − MAY 2004 − REVISED APRIL 2008
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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
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 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 2008 Texas Instruments Incorporated
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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.
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