UC2845BDR2G

$1.43

Description：IC REG CTRLR BOOST/FLYBK 14SOIC
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:28dfff3186c4 Category: DC DC Switching Controllers Brand: onsemi

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Product introduction

UC2845BDR2G 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 UC2845BDR2G

Description：IC REG CTRLR BOOST/FLYBK 14SOIC
Series：-
Mfr：onsemi
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)：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 UC2845BDR2G

UC2845BDR2G

DC DC Switching Controllers Overview

The UC2845BDR2G is a current-mode PWM controller manufactured by onsemi, designed for high-performance DC-DC switching applications. It operates within a supply voltage range of 7.6V to 30V and supports a maximum switching frequency of 500 kHz. The device features a fixed maximum duty cycle of 48% and provides a peak output drive current of 1A. It is housed in a 14-SOIC surface-mount package and functions with flyback or boost topologies. The component is rated for an operating temperature range from -25°C to +85°C.

DC DC Switching Controllers Feature Summary

Current-mode control architecture for improved line regulation and transient response
Integrated oscillator with external timing resistor capability up to 500 kHz
High-current push-pull output stage capable of driving power MOSFETs directly

DC DC Switching Controllers Applications

Flyback converter designs for isolated power supplies
Boost converter circuits for step-up voltage regulation
General-purpose DC-to-DC switching regulator modules

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'R2G' against the manufacturer's official datasheet to confirm reel packaging specifications and RoHS compliance status. Ensure the ordering part number matches the exact pinout and electrical characteristics required for the target design, as minor suffix variations may indicate different tape-and-reel quantities or material declarations.

DC DC Switching Controllers Selection Notes

Select this component when a fixed 48% maximum duty cycle is required for flyback or boost topologies. It is suitable for designs needing a 1A output drive current without external drivers. Consider alternative models like the UC2843B if a higher duty cycle near 96% is necessary for low-input voltage applications.

DC DC Switching Controllers Part Context

This part belongs to the UC2845 family of current-mode PWM controllers. It shares functional similarities with the UC3845 and UCC2845 series but offers specific commercial-grade temperature ratings and packaging options. The DR2G suffix indicates a specific tape-and-reel configuration for automated assembly processes.