UC2845BD1G The ON Semiconductor UC2845BD1G is a high-performance current mode controller designed for off-line and DC-DC converter applications. It operates with a voltage range of 7.6V to 30V and supports switching frequencies up to 500kHz.
Mfr Part #:

UC2845BD1G

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor UC2845BD1G is a high-performance current mode controller designed for off-line and DC-DC converter applications. It operates with a voltage range of 7.6V to 30V and supports switching frequencies up to 500kHz.
✓ Total Stock: 18,102 pcs
$ Price Range: $0.78

UC2845BD1G Available from 1 distributor

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✓ Non-Authorised
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18,102 pcs
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UC2845BD1G 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
SVHC Present
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage

UC2845BD1G Description

Short technical summary and product information.

The UC2845BD1G 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 is suitable for applications requiring output voltages between 7.6V and 30V, with a maximum switching frequency of 500kHz and a duty cycle up to 48%.

 

Key features include undervoltage lockouts with hysteresis, cycle-by-cycle current limiting, and adjustable output deadtime from 50% to 70%. The device is available in an 8-pin SOIC package, designed for surface mounting. Its robust design and integrated protective features make it a versatile choice for power supply designs.

 

This controller is well-suited for various power conversion topologies, including Boost and Flyback configurations. The integrated features simplify design and reduce component count, making it an attractive option for engineers seeking reliable and efficient power management solutions.

UC2845BD1G Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC2845BD1G Current Mode Controller

UC2845BD1G Compliance

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

UC2845BD1G Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

UC2845BD1G Features

  • High performance current mode controller.
  • Operates from 7.6V to 30V input.
  • Supports switching frequencies up to 500kHz.
  • Adjustable output deadtime 50-70%.
  • Surface mount 8-SOIC package.

UC2845BD1G Applications

  • Ideal for boost converter designs.
  • Suitable for flyback power supplies.
  • Used in isolated DC-DC converters.
  • Cost-effective for low to medium power.
  • Designed for 8-SOIC mounting.

UC2845BD1G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the UC2845BD1G?

The operating voltage is 7.6V (UVLO off threshold) with a range up to 30V.

What is the operating temperature range?

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

What package is the UC2845BD1G available in?

It is available in an 8-SOIC package.

What topologies does the UC2845BD1G support?

It supports boost and flyback topologies.

What is the maximum switching frequency?

The maximum switching frequency is up to 500 kHz.

What is the maximum duty cycle?

The maximum duty cycle is 48%.

Does the UC2845BD1G have a synchronous rectifier?

No, it does not have a synchronous rectifier.

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