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XD3843 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

XD3843 product

XD3843

DC DC Switching Controllers

Current-mode PWMDIP-8Offline SMPSDC-DC controller1 A gate drive5 V reference

XD3843 is a DIP-8 fixed-frequency current-mode PWM controller for offline and DC-DC power conversion. It supports a 5 V reference, cycle-by-cycle current limiting, and high-duty-cycle operation.

Best for

  • Offline switch-mode power supplies
  • DC-DC converters requiring current-mode PWM control
  • N-channel MOSFET gate drive

Avoid if

  • A controller with explicitly documented compliance status is required
  • A package other than through-hole DIP-8 is required
  • The design requires a verified lower maximum-duty-cycle controller

Check before use

  • Set RT and CT for the intended switching frequency
  • Set the current-sense resistor for the required peak current
  • Validate loop compensation and slope compensation where applicable
  • Confirm VCC startup supply behavior

Key specifications

Package
DIP-8
UVLO start threshold
8.4 V typical
Maximum duty cycle
96% typical
Reference output
5.00 V typical
Current-sense input
1.0 V typical maximum input signal

Compliance & Environment

RoHS
-
REACH
-
MSL
MSL3
ECCN
-
HTSUS
-

Application

Offline power suppliesDC-DC convertersIndustrial power control

Datasheet

6c96fc0224a819c03cbb31b46905e679_XD3843.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for XD3843: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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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

XD3843 is a high-performance current-mode PWM control IC from XINLUDA. It integrates an oscillator, error amplifier, PWM comparator, current-limit latch, 5 V reference, UVLO, and totem-pole MOSFET gate driver in a DIP-8 package.