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TI UCC3805DTR product image
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TI UCC3805DTRRoHS

Manufacturer
TI
MPN
UCC3805DTR
LCSC Part #
C2657975
Packaging
SOIC-8
Customer #
Key Attributes
UCC280x Low-Power BiCMOS Current-Mode PWM Controllers
Datasheetpdf iconTI UCC3805DTR
In-Stock: 231
231 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 2.4423$ 2.44
10+$ 2.1498$ 21.50
30+$ 1.9451$ 58.35
100+$ 1.7566$ 175.66
500+$ 1.6705$ 835.25
1,000+$ 1.6347$ 1634.70
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerTI
PackagingSOIC-8
Operating Temperature-40℃~+125℃
Output Current1A
FeaturesLeading edge blanking;Under-voltage lockout;Soft-start;Over Current Protection
TopologyBuck;Boost;Flyback;Forward
Duty Cycle(Max)49%
Operating Voltage3.6V~12V
Frequency - Switching31kHz
Output Voltage11V
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The UCC280x 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 mode power supplies with minimal parts count. These devices have the same pin configuration as the UCx84x family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input. The UCC280x family offers a variety of package options, temperature range options, choice of maximum duty cycle, and choice of critical voltage levels. Lower reference parts such as the UCC2803 and UCC2805 fit best into battery-operated systems, while the higher reference and higher UVLO hysteresis of the UCC2802 and UCC2804 make these ideal choices for use in off-line power supplies. The UCC280x series is specified for operation from -40°C to 125°C.

Features

AI Translation
  • 100-μA typical starting supply current
  • 500-μA typical operating supply current
  • Operation up to 1 MHz
  • Internal soft start
  • Internal fault soft start
  • Internal leading-edge blanking of the current sense signal
  • 1-A totem-pole output
  • 70-ns typical response from current-sense to gate drive output
  • 1.5% tolerance voltage reference
  • Same pinout as UC3842 and UC3842A

Applications

AI Translation
  • Switch mode power supplies (SMPS)
  • DC-to-DC converters
  • Power modules
  • Automotive PSU
  • Battery-operated PSU