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UC2843ADR2 is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists onsemi. Its product description is IC REG CTRLR BUCK 14SOIC. Review the specifications below when checking this part for your BOM.
DC DC Switching Controllers specifications for UC2843ADR2
- Description：IC REG CTRLR BUCK 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)：96%
- 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 UC2843ADR2
DC DC Switching Controllers Overview
The UC2843ADR2G is a current-mode PWM controller manufactured by onsemi, designed for high-performance power supply applications. It operates with a switching frequency of up to 500 kHz and supports topologies including flyback, boost, and forward converters. The device features a maximum duty cycle of 96% and provides a peak output drive current of 1 A. It functions within an input voltage range of 7.6 V to 30 V and is available in a 14-SOIC surface-mount package. The operational temperature range spans from -25°C to +85°C.
DC DC Switching Controllers Feature Summary
- Implements current-mode pulse width modulation control architecture
- Provides active leading edge blanking to prevent false triggering
- Features a precision oscillator with external timing resistor synchronization
DC DC Switching Controllers Applications
- Flyback converter designs
- Boost DC-DC converter circuits
- Forward converter implementations
DC DC Switching Controllers Procurement Notes
Verify the specific suffix 'R2' against official manufacturer documentation to confirm tape-and-reel packaging specifications. Ensure that the component meets RoHS compliance requirements as defined in the datasheet. Cross-reference the ordering number with authorized distributors to confirm availability and authenticity before procurement.
DC DC Switching Controllers Selection Notes
Select this component for designs requiring current-mode control with high efficiency at frequencies up to 500 kHz. Consider the 14-pin SOIC package for surface-mount assembly constraints. Evaluate the 96% maximum duty cycle limit against the required transformer turns ratio and input-output voltage ranges for the target application.
DC DC Switching Controllers Part Context
This part belongs to the UC284x series of current-mode PWM controllers. It shares functional similarities with other members like the UC2842B but differs in pinout configuration and specific internal circuitry optimized for different topology requirements. The series is widely used in industrial and consumer power supplies.
DC DC Switching Controllers Replacement Considerations
- TL2843BDR
- UC2843BD
DC DC Switching Controllers FAQ
What is the maximum operating frequency?
The maximum switching frequency is 500 kHz.
Which packages are available?
The device is available in a 14-SOIC package.
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