UC2845BDG

$0.29

Description：IC REG CTRLR BOOST/FLYBK 14SOIC
Series：-
Mfr：onsemi
Package：Bulk,Tube

SKU:15148fe81645 Category: DC DC Switching Controllers Brand: onsemi

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Product introduction

UC2845BDG is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists onsemi. Its product description is IC REG CTRLR BOOST/FLYBK 14SOIC. Review the specifications below when checking this part for your BOM.

DC DC Switching Controllers specifications for UC2845BDG

Description：IC REG CTRLR BOOST/FLYBK 14SOIC
Series：-
Mfr：onsemi
Package：Bulk,Tube
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)：48%
Synchronous Rectifier：No
Clock Sync：No
Serial Interfaces：-
Control Features：Frequency Control
Operating Temperature：-25°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：14-SOIC (0.154", 3.90mm Width)
Supplier Device Package：14-SOIC
Grade：-
Qualification：-

DC DC Switching Controllers datasheet and documents for UC2845BDG

UC2845BDG

DC DC Switching Controllers Overview

The UC2845BDG is a high-performance current mode PWM controller manufactured by onsemi, designed for off-line and DC-DC converter applications. It operates in an SOIC-14 surface-mount package with a maximum switching frequency of 500 kHz and a maximum duty cycle of 48%. The device supports Flyback and Boost topologies, providing one output channel capable of sourcing 1 A. It functions within an operating temperature range of -25°C to +85°C and requires a supply voltage between 7.6 V and 36 V.

DC DC Switching Controllers Feature Summary

Integrates a temperature-compensated reference and undervoltage lockout with hysteresis for stable operation.
Features automatic feed-forward compensation and latching PWM for cycle-by-cycle current limiting.
Provides a high-current totem-pole output stage optimized for driving power MOSFETs.

DC DC Switching Controllers Applications

Off-line power supplies
DC-DC converters
Flyback topology designs
Boost topology designs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'DG' corresponds to the SOIC-14 package variant when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design compatibility with the specified 7.6 V to 36 V supply voltage range and -25°C to +85°C operating temperature limits.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring fixed-frequency current-mode control with minimal external components. It is suitable where a 48% maximum duty cycle aligns with the required transformer turns ratio or boost conversion ratio. Consider the SOIC-14 package constraints for PCB layout and thermal management requirements.

DC DC Switching Controllers Part Context

This part belongs to the UC2845B series of high-performance current mode controllers. It shares functional similarities with the UC3845B and UC2845B families but is distinguished by its specific surface-mount packaging and commercial/industrial temperature rating specifications defined by the manufacturer.