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TSSOP (PW)
Integrated Circuits (ICs)

UCC3802PW

LTB
Texas Instruments

12V, 1A LOW POWER BICMOS 1MHZ CURRENT MODE PWM WITH 12.5V/8.3V UVLO AND 100% DUTY CYCLE, 0C TO 70C

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TSSOP (PW)
Integrated Circuits (ICs)

UCC3802PW

LTB
Texas Instruments

12V, 1A LOW POWER BICMOS 1MHZ CURRENT MODE PWM WITH 12.5V/8.3V UVLO AND 100% DUTY CYCLE, 0C TO 70C

Technical Specifications

Parameters and characteristics for this part

SpecificationUCC3802PW
Control FeaturesFrequency Control
Duty Cycle99 %
Fault ProtectionCurrent Limiting
Frequency - Switching [Max]1 MHz
Internal Switch(s)False
Mounting TypeSurface Mount
Operating Temperature [Max]85 °C
Operating Temperature [Min]-40 °C
Package / Case8-TSSOP
Package / Case [custom]0.173 "
Package / Case [custom]4.4 mm
Supplier Device Package8-TSSOP
TopologyFlyback, Boost, Forward, Buck
Voltage - Start Up12.5 V
Voltage - Supply (Vcc/Vdd) [Max]12 V
Voltage - Supply (Vcc/Vdd) [Min]8.3 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyTube 600$ 1.81
Texas InstrumentsTUBE 1$ 2.69
100$ 2.22
250$ 1.59
1000$ 1.20

Description

General part information

UCC3802 Series

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 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.

Documents

Technical documentation and resources

DN-30 Programmable Electronic Circuit Breaker

Application note

DN-43 Simple Techniques to Generate a Negative Voltage Bias Supply

Application note

DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802

Application note

U-133A UCC3800/1/2/3/4/5 BiCMOS Current Mode Control IC's

Application note

Dual Output Boost Converter

Application note

DN-54 Innovative Buck Regulator Uses High Side N-Channel Switch Without Complex

Application note

Seminar 900 Topic 6 - High Power Factor Prereg Using SEPIC

More literature

Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B)

Application note

UCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers

Application note

Differences Between the UCC3813 and the UCC3800 PWM Families

Application note

DN-48 Versatile Low Power SEPIC Converter Accepts Wide Input Voltage Range

Application note

Seminar 400 Topic 2 - Design of Flyback Transformers and Filter Inductors

More literature

UCC280x Low-Power BiCMOS Current-Mode PWM Controllers datasheet (Rev. G)

Data sheet

DN-46 Highly Efficient Low Power DC to DC Inverter Converts +5V Input to -3V Out

Application note

DN-65 Considerations in Powering BiCMOS ICs

Application note

DN-89 Comparing the UC3842, UCC3802, and UCC3809 Primary Side PWM Controllers

Application note

UCC3813 Dual Output Boost Converter

User guide

Conditioning a Switch-mode Power Supply Current Signal Using TI Op Amps (Rev. A)

Application note

U-111, Practical Considerations in Current Mode Power Supplies

Application note

Seminar 300 Topic 8 - Switching Power Supply Design Review

More literature

Power Management Guide 2018 (Rev. R)

Selection guide

DN-56A, Single Switch Flyback Circuit Converts + 5 V to +/- 12 V for RS-232/422

Application note