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UC2845BDG The On Semiconductor UC2845BDG is a high-performance current mode controller designed for DC-DC converter applications. It features a wide operating voltage range and high switching frequency capabilities.
Mfr Part #:

UC2845BDG

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The On Semiconductor UC2845BDG is a high-performance current mode controller designed for DC-DC converter applications. It features a wide operating voltage range and high switching frequency capabilities.
✓ Total Stock: 5,665 pcs
$ Price Range: $0.78

UC2845BDG Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Flip Electronics ✓
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5,665 pcs
On Request
5665 pcs On Request 1 On Request On Request On Request On Request On Request
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UC2845BDG Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
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UC2845BDG Description

Short technical summary and product information.

The UC2845BDG 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, integrating an oscillator, a temperature-compensated reference, a high-gain error amplifier, a current-sensing comparator, and a high-current totem pole output.

 

This controller operates with a voltage range of 7.6V to 30V and supports switching frequencies up to 500kHz. Key features include adjustable output deadtime from 50% to 70%, automatic feed-forward compensation, and latching PWM for cycle-by-cycle current limiting. The device is available in a 14-SOIC package, suitable for surface mounting.

 

Designed for applications requiring precise frequency control and robust current limiting, the UC2845BDG is well-suited for power supply designs where efficiency and stability are critical. Its topology supports Boost and Flyback configurations, making it versatile for various power conversion needs.

UC2845BDG Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC2845BDG Current Mode Controller
Subcategory: Current Mode Controller

UC2845BDG Compliance

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

UC2845BDG Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

UC2845BDG Features

  • High performance current mode controller.
  • Operates from 7.6V to 30V supply.
  • Supports up to 500kHz switching frequency.
  • Adjustable output deadtime 50% to 70%.
  • Available in 14-SOIC surface mount package.

UC2845BDG Applications

  • Ideal for DC-DC converters.
  • Suitable for Off-Line power supplies.
  • Used in Boost converter designs.
  • Applicable to Flyback converter designs.

UC2845BDG FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the UC2845BDG?

7.6V to 30V.

What package is the UC2845BDG available in?

14-SOIC (0.154", 3.90mm Width) surface-mount package.

What is the operating temperature range of the UC2845BDG?

-25°C to 85°C (TA).

What is the switching frequency of the UC2845BDG?

Up to 500kHz, with oscillator frequency guaranteed at 250kHz.

What topologies does the UC2845BDG support?

Boost and flyback topologies.

What is the maximum duty cycle of the UC2845BDG?

48%.

What is the output type of the UC2845BDG?

Transistor driver, single output, positive configuration with isolation capability.

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