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UC2845BD1R2G The On Semiconductor UC2845BD1R2G is a DC DC Switching Controller designed for boost and flyback applications. It operates within a voltage range of 7.6V to 30V and supports frequencies up to 500kHz.
Mfr Part #:

UC2845BD1R2G

Available from 5 distributors
Mfr Name: On Semiconductor
On Semiconductor
The On Semiconductor UC2845BD1R2G is a DC DC Switching Controller designed for boost and flyback applications. It operates within a voltage range of 7.6V to 30V and supports frequencies up to 500kHz.
✓ Total Stock: 7,781 pcs
$ Price Range: $0.78

UC2845BD1R2G Available from 5 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Risen Electronics ✓
Non-Authorised Inventory information
2,000 pcs
On Request
2000 pcs On Request 1 On Request On Request On Request On Request 2026-02-23 21:33:16
Xingangxin ✓
Non-Authorised Inventory information
1,790 pcs
On Request
1790 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
1,687 pcs
On Request
1687 pcs On Request 1 On Request On Request 1752+ On Request On Request
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
1,500 pcs
On Request
1500 pcs On Request 1 On Request On Request 20+ On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
804 pcs
On Request
804 pcs On Request 1 On Request On Request 21+ On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

UC2845BD1R2G 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
Synchronous Rectifier
Topology
Voltage
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UC2845BD1R2G Description

Short technical summary and product information.

The UC2845BD1R2G from On Semiconductor is a high-performance, fixed-frequency current mode controller. It is specifically designed for Off-Line and dc-dc converter applications, offering a cost-effective solution with minimal external components.

 

This controller features an oscillator, a temperature-compensated reference, a high-gain error amplifier, a current sensing comparator, and a high-current totem pole output, making it suitable for driving a power MOSFET. It includes protective features such as input and reference undervoltage lockouts with hysteresis, cycle-by-cycle current limiting, and a latch for single pulse metering.

 

The UC2845BD1R2G operates at voltages from 7.6V to 30V and supports switching frequencies up to 500kHz, with a maximum duty cycle of 48%. It is available in an 8-SOIC package and is designed for surface mount applications.

 

Key features include automatic feed-forward compensation and adjustable output deadtime. The device is suitable for boost and flyback topologies.

UC2845BD1R2G Quick Information

Product Type: Current Mode Controller
Canonical Name: UC2845BD1R2G Current Mode Controller
Subcategory: Power Management IC

UC2845BD1R2G Compliance

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

UC2845BD1R2G Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

UC2845BD1R2G Features

  • High performance current mode controller.
  • Operates from 7.6V to 30V.
  • Supports frequencies up to 500kHz.
  • Available in 8-SOIC package.
  • Suitable for boost and flyback converters.

UC2845BD1R2G Applications

  • Ideal for off-line converters.
  • Used in DC-DC converter applications.
  • Suitable for boost topology designs.
  • Suitable for flyback topology designs.

UC2845BD1R2G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of UC2845BD1R2G?

7.6V to 30V.

What package is UC2845BD1R2G available in?

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

What is the operating temperature range?

-25°C to 85°C.

What is the maximum switching frequency?

Up to 500kHz.

What topologies does UC2845BD1R2G support?

Boost and flyback.

What is the maximum duty cycle?

48%.

What type of output does the controller provide?

Transistor driver.

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