UC3843BD1013TR

$0.71

Description：IC REG CTRLR BOOST/FLYBACK 8SOIC
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:1de625614fc3 Category: DC DC Switching Controllers Brand: STMicroelectronics

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Product introduction

UC3843BD1013TR is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists STMicroelectronics. Its product description is IC REG CTRLR BOOST/FLYBACK 8SOIC. Review the specifications below when checking this part for your BOM.

DC DC Switching Controllers specifications for UC3843BD1013TR

Description：IC REG CTRLR BOOST/FLYBACK 8SOIC
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Transistor Driver
Function：Step-Up, Step-Up/Step-Down
Output Configuration：Positive, Isolation Capable
Topology：Boost, Flyback
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：7.6V ~ 30V
Frequency - Switching：Up to 500kHz
Duty Cycle (Max)：96%
Synchronous Rectifier：No
Clock Sync：No
Serial Interfaces：-
Control Features：Frequency Control
Operating Temperature：0°C ~ 70°C (TJ)
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOIC
Grade：-
Qualification：-

DC DC Switching Controllers datasheet and documents for UC3843BD1013TR

UC3843BD1013TR

DC DC Switching Controllers Overview

The UC3843BD1013TR is a current mode PWM controller from STMicroelectronics, designed for offline and DC to DC converters. It operates at a maximum switching frequency of 500 kHz with a maximum duty cycle of 96%. The device features a supply voltage range of 7.6V to 30V and functions within a junction temperature range of 0°C to 70°C. Packaged in an 8-SOIC surface-mount format, it supports boost and flyback topologies with positive, isolated outputs.

DC DC Switching Controllers Feature Summary

Implements fixed frequency current mode control schemes optimized for minimal external component count.
Features automatic feed forward compensation and pulse-by-pulse current limiting for enhanced load response.
Includes under-voltage lockout with hysteresis and double pulse suppression capabilities.

DC DC Switching Controllers Applications

Offline power supplies
DC to DC converters
Boost converter designs
Flyback transformer applications

DC DC Switching Controllers Procurement Notes

Verify the specific suffix BD1013TR against official STMicroelectronics documentation to confirm tape and reel packaging specifications. Ensure compatibility with required operating temperature ranges and voltage thresholds before integration. Cross-reference datasheet revisions to confirm pinout consistency and electrical parameter tolerances for the exact manufacturing batch.

DC DC Switching Controllers Selection Notes

Select this component when designing systems requiring high duty cycle operation up to 96% without internal blanking logic. It is suitable for applications needing lower start-up current compared to standard variants. Consider the 8-SOIC package constraints and thermal dissipation requirements for the intended PCB layout.

DC DC Switching Controllers Part Context

This part belongs to the UC284xB family of control ICs, which provides essential features for implementing off-line or DC to DC fixed frequency current mode control schemes. The family includes variants differentiated by under-voltage lockout thresholds and maximum duty cycle ranges, offering flexibility for various converter topologies.