DistyParts Icon
UC3844BDG The UC3844BDG from ON Semiconductor is a high-performance fixed-frequency current mode controller designed for Off-Line and DC-DC converter applications. It offers a cost-effective solution with minimal external components.
Mfr Part #:

UC3844BDG

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
The UC3844BDG from ON Semiconductor is a high-performance fixed-frequency current mode controller designed for Off-Line and DC-DC converter applications. It offers a cost-effective solution with minimal external components.
✓ Total Stock: 29,570 pcs
$ Price Range: $0.78

UC3844BDG Available from 3 distributors

✓ Authorised
✓ Non-Authorised
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.

UC3844BDG Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Conflict Minerals
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
Synchronous Rectifier
Topology
Voltage
View Similar Products (0)

UC3844BDG Description

Short technical summary and product information.

The UC3844BDG is a high-performance fixed-frequency current mode controller from ON Semiconductor, suitable for Off-Line and DC-DC converter applications. It integrates essential components like an oscillator, a temperature-compensated reference, a high-gain error amplifier, a current sensing comparator, and a high-current totem pole output, making it ideal for driving power MOSFETs.

 

Key features include undervoltage lockouts with hysteresis, cycle-by-cycle current limiting, and adjustable output deadtime from 50% to 70%. The device operates with a voltage range of 10V to 36V and can achieve output switching frequencies up to 500kHz, with a guaranteed oscillator frequency of 250kHz. The maximum duty cycle is 48%.

 

This controller is available in a 14-pin SOIC surface mount package. Its operating temperature range is 0°C to 70°C (TA). The UC3844BDG is designed for applications requiring precise frequency control and efficient power conversion.

UC3844BDG Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC3844BDG Current Mode Controller
Subcategory: DC DC Switching Controllers

UC3844BDG Compliance

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

UC3844BDG Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

UC3844BDG Features

  • High performance fixed frequency current mode controller.
  • Designed for Off-Line and DC-DC converters.
  • Operates from 10V to 36V supply voltage.
  • Output switching frequency up to 500kHz.
  • Available in a 14-SOIC surface mount package.

UC3844BDG Applications

  • Ideal for DC-DC converter designs.
  • Suitable for Off-Line power supplies.
  • Used in power management circuits.
  • Enables efficient power conversion.

UC3844BDG FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the UC3844BDG?

10V to 36V.

What is the maximum switching frequency?

Up to 500kHz.

What topologies does the UC3844BDG support?

Boost and flyback.

What is the maximum duty cycle?

48%.

What is the operating temperature range?

0°C to 70°C.

What is the package type?

Surface-mount 14-SOIC package.

What are the undervoltage lockout thresholds?

For the UC3844B variant, the undervoltage lockout turns on at 16V and off at 10V.

Home

Categories