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UC3844BVDR2G The ON Semiconductor UC3844BVDR2G is a high-performance current mode PWM controller designed for off-line and DC-DC converter applications. It operates with an input voltage range of 10V to 36V and features a maximum duty cycle of 48%.
Mfr Part #:

UC3844BVDR2G

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor UC3844BVDR2G is a high-performance current mode PWM controller designed for off-line and DC-DC converter applications. It operates with an input voltage range of 10V to 36V and features a maximum duty cycle of 48%.
✓ Total Stock: 4,024 pcs
$ Price Range: $0.78

UC3844BVDR2G Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
3,000 pcs
On Request
3000 pcs On Request 1 On Request On Request On Request On Request On Request
Flip Electronics ✓
Non-Authorised Inventory information
1,024 pcs
On Request
1024 pcs On Request 1 On Request On Request On Request 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.

UC3844BVDR2G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Industrial Grade
Lead Spacing
Lead Style
Mounting Style
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Current
Output Phases
Output Type
SVHC Present
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
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UC3844BVDR2G Description

Short technical summary and product information.

The UC3844BVDR2G 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 device supports a wide operating voltage range from 10V to 36V and can operate at switching frequencies up to 500kHz, with a maximum duty cycle of 48%.

 

Key features include automatic feed-forward compensation and latching PWM for cycle-by-cycle current limiting. Protective features such as input and reference undervoltage lockouts with hysteresis are also incorporated. The UC3844BVDR2G is available in a 14-SOIC package, suitable for surface mount applications.

 

This controller is well-suited for boost and flyback topologies, providing a positive, isolation-capable output. Its design considerations include precise frequency control and adjustable output deadtime from 50% to 70%. The device operates within a temperature range of -40°C to 105°C (TA).

UC3844BVDR2G Quick Information

Product Type: Switching Controller
Series: UC3844B
Canonical Name: UC3844BVDR2G Current Mode Controller
Subcategory: PMIC - Power Management ICs

UC3844BVDR2G Compliance

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

UC3844BVDR2G Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

UC3844BVDR2G Features

  • High performance current mode PWM controller.
  • Wide 10V to 36V operating voltage range.
  • Up to 500kHz switching frequency capability.
  • 14-SOIC package for surface mounting.
  • Suitable for boost and flyback topologies.

UC3844BVDR2G Applications

  • Ideal for off-line converter designs.
  • Used in DC-DC power supply applications.
  • Suitable for boost converter circuits.
  • Applicable in flyback converter designs.

UC3844BVDR2G FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UC3844BVDR2G?

The operating voltage range for the UC3844BVDR2G is 10V to 36V.

What package type is the UC3844BVDR2G available in?

The UC3844BVDR2G is available in a 14-SOIC package.

What is the operating temperature range for the UC3844BVDR2G?

The operating temperature range for the UC3844BVDR2G is -40°C to 105°C (TA).

Is the UC3844BVDR2G RoHS compliant?

Yes, the UC3844BVDR2G is RoHS3 Compliant.

What is the maximum switching frequency of the UC3844BVDR2G?

The UC3844BVDR2G has a maximum switching frequency of 500 kHz.

What is the maximum duty cycle for the UC3844BVDR2G?

The maximum duty cycle for the UC3844BVDR2G is 48%.

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