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UC3844BDR2 The On Semiconductor UC3844BDR2 is a high-performance current mode controller designed for off-line and DC-DC converter applications. It operates within a voltage range of 10V to 36V and supports switching frequencies up to 500kHz.
Mfr Part #:

UC3844BDR2

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The On Semiconductor UC3844BDR2 is a high-performance current mode controller designed for off-line and DC-DC converter applications. It operates within a voltage range of 10V to 36V and supports switching frequencies up to 500kHz.
✓ Total Stock: 820 pcs
$ Price Range: $0.78

UC3844BDR2 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
820 pcs
On Request
820 pcs On Request 1 On Request On Request 05+ 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.

UC3844BDR2 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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UC3844BDR2 Description

Short technical summary and product information.

The UC3844BDR2 from On Semiconductor is a fixed-frequency current mode controller suitable for off-line and DC-DC converter designs. It offers a cost-effective solution with minimal external components. Key features include an oscillator, a temperature-compensated reference, a high-gain error amplifier, and a high-current totem pole output.

 

This controller operates with a voltage range of 10V to 36V and supports a maximum duty cycle of 48%. It is capable of handling switching frequencies up to 500kHz. The device includes protective features such as undervoltage lockout with hysteresis and cycle-by-cycle current limiting.

 

The UC3844BDR2 is available in an 8-pin SOIC surface-mount package. Its operating temperature range is 0°C to 70°C (TA). The controller is designed for applications requiring efficient power conversion with precise control.

 

This part functions as a Step-Up or Step-Up/Step-Down controller, utilizing Boost or Flyback topologies. It is not a synchronous rectifier and does not feature clock synchronization.

UC3844BDR2 Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC3844B High Performance Current Mode Controller
Subcategory: DC DC Switching Controllers

UC3844BDR2 Compliance

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

UC3844BDR2 Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

UC3844BDR2 Features

  • High performance current mode controller.
  • Operates from 10V to 36V input voltage.
  • Supports switching frequencies up to 500kHz.
  • Adjustable output deadtime from 50% to 70%.
  • Available in 8-SOIC surface mount package.

UC3844BDR2 Applications

  • Ideal for off-line converter applications.
  • Suitable for DC-DC converter designs.
  • Cost-effective power solutions.
  • Minimal external component count.

UC3844BDR2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the UC3844BDR2?

The UC3844BDR2 operates from 10V to 36V.

What is the maximum switching frequency of the UC3844BDR2?

The maximum switching frequency is up to 500kHz.

What is the operating temperature range of the UC3844BDR2?

The operating temperature range is 0°C to 70°C.

What package is the UC3844BDR2 available in?

The UC3844BDR2 is available in an 8-SOIC surface mount package.

What topologies does the UC3844BDR2 support?

The UC3844BDR2 supports boost and flyback topologies.

What is the maximum duty cycle of the UC3844BDR2?

The maximum duty cycle is 48%.

What is the UVLO threshold for the UC3844BDR2?

The UVLO thresholds are 16V on and 10V off.

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