UC2843BD1R2G The On Semiconductor UC2843BD1R2G is a high-performance current mode controller designed for DC-DC converter applications. It operates within a voltage range of 7.6V to 30V and supports frequencies up to 500kHz.
Mfr Part #:

UC2843BD1R2G

Available from 6 distributors
Mfr Name: On Semiconductor
On Semiconductor
The On Semiconductor UC2843BD1R2G is a high-performance current mode controller designed for DC-DC converter applications. It operates within a voltage range of 7.6V to 30V and supports frequencies up to 500kHz.
✓ Total Stock: 126,679 pcs
$ Price Range: $0.78

UC2843BD1R2G Available from 6 distributors

✓ Authorised
✓ Non-Authorised

UC2843BD1R2G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Halogen Free
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Supplier Device Package
Synchronous Rectifier
Topology
Voltage

UC2843BD1R2G Description

Short technical summary and product information.

The UC2843BD1R2G from On Semiconductor is a fixed-frequency, current-mode controller designed for efficient Off-Line and DC-DC converter applications. It offers a cost-effective solution with minimal external components, featuring a trimmed oscillator for precise duty cycle control and a temperature-compensated reference.

 

Key electrical specifications include an operating voltage range of 7.6V to 30V, a maximum duty cycle of 96%, and operation up to 500kHz. The controller supports Boost and Flyback topologies and provides a transistor driver output. It is suitable for applications requiring frequency control.

 

This device is housed in an 8-pin SOIC package, designed for surface mounting. The operating temperature range is -25°C to 85°C (TA). It is also noted as being Pb-Free and Halide-Free.

 

The UC2843BD1R2G integrates several protective features, including undervoltage lockouts with hysteresis, cycle-by-cycle current limiting, and a latch for single-pulse metering, enhancing system reliability.

UC2843BD1R2G Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC2843BD1R2G Current Mode Controller
Subcategory: Current Mode Controller

UC2843BD1R2G Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

UC2843BD1R2G Estimated Pricing

Qty Low High
1+ $0.78 $0.78

Estimated market price range - modelled values for guidance only, not live distributor offers.

UC2843BD1R2G Features

  • High performance current mode controller.
  • Operates from 7.6V to 30V.
  • Frequency up to 500kHz.
  • 96% maximum duty cycle.
  • Surface mount 8-SOIC package.

UC2843BD1R2G Applications

  • Ideal for flyback power supply designs.
  • Used in boost converter applications.
  • Suitable for isolated power supplies.
  • For DC-DC switching controller circuits.

UC2843BD1R2G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the UC2843BD1R2G?

The operating voltage range is 7.6V to 30V.

What is the maximum switching frequency of the UC2843BD1R2G?

The maximum switching frequency is 500kHz.

What is the maximum duty cycle of the UC2843BD1R2G?

The maximum duty cycle is 96%.

What is the operating temperature range of the UC2843BD1R2G?

The operating temperature range is -25°C to 85°C.

What package is the UC2843BD1R2G available in?

The UC2843BD1R2G is available in an 8-SOIC surface-mount package.

What topologies does the UC2843BD1R2G support?

The UC2843BD1R2G supports boost and flyback topologies.

What is the output type of the UC2843BD1R2G?

The output type is a transistor driver.

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