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UC3842AN-TD AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

UC3842AN-TD product

UC3842AN-TD

Integrated Circuits (ICs)

UC3842PWM controllerCurrent modeOffline SMPSDC-DC converter8-pin

UC3842AN-TD is an 8-pin current-mode PWM controller for offline and DC-DC switch-mode power designs. It integrates a reference, control amplifier, current limiting, UVLO and a MOSFET driver.

Best for

  • Offline switch-mode power supplies
  • Current-mode DC-DC converters
  • Power MOSFET drive stages

Avoid if

  • A confirmed package variant is required but the orderable suffix has not been verified
  • Operation outside the stated 0 °C to 70 °C ambient range is required

Check before use

  • Confirm package and PCB footprint
  • Size the current-sense resistor for the required current limit
  • Check startup and auxiliary-bias supply behavior against UVLO thresholds

Key specifications

Control method
Current-mode PWM
Reference output
5.00 V typical
Startup / UVLO
16 V on typical; 10 V off typical
Maximum duty cycle
96% typical
Gate-drive capability
Up to 1 A peak

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Offline power suppliesDC-DC converters

Datasheet

44bc2d9a631edc2f8101e2a23b644dbb_UC3842AN-TD.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for UC3842AN-TD: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

UC3842AN-TD is a TDSEMIC current-mode PWM controller for switch-mode power supplies. Its functional blocks include a 5 V reference, error amplifier, oscillator, current-sense comparator, PWM latch, UVLO and MOSFET output driver.