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UC3844BD1G The ON Semiconductor UC3844BD1G 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 #:

UC3844BD1G

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor UC3844BD1G 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: 4,026 pcs
$ Price Range: $0.78

UC3844BD1G 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
3,144 pcs
On Request
3144 pcs On Request 1 On Request On Request On Request On Request On Request
Flip Electronics ✓
Non-Authorised Inventory information
882 pcs
On Request
882 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.

UC3844BD1G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle
Duty Cycle (Max)
Frequency
Function
Lead Spacing
Lead Style
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
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UC3844BD1G Description

Short technical summary and product information.

The UC3844BD1G from ON Semiconductor is a high-performance, fixed-frequency current mode controller. It is engineered for Off-Line and DC-DC converter applications, providing a cost-effective solution with minimal external components. This integrated circuit 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 power MOSFETs.

 

Key features include cycle-by-cycle current limiting, undervoltage lockout with hysteresis, and an adjustable output deadtime from 50% to 70%. The device operates within a voltage range of 10V to 36V and supports switching frequencies up to 500kHz. It is available in an 8-SOIC package.

 

This controller is designed for applications requiring precise frequency control and efficient power conversion. Its robust feature set makes it a versatile choice for various power supply designs.

UC3844BD1G Quick Information

Product Type: Current Mode Controller
Series: UC3844
Canonical Name: UC3844BD1G Current Mode Controller
Subcategory: DC DC Switching Controllers

UC3844BD1G Compliance

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

UC3844BD1G Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

UC3844BD1G Features

  • High performance current mode controller.
  • Designed for DC-DC converter applications.
  • Operates from 10V to 36V supply.
  • Supports switching frequencies up to 500kHz.
  • Available in an 8-SOIC package.

UC3844BD1G Applications

  • Ideal for Off-Line converters.
  • Suitable for DC-DC converters.
  • Used in step-up applications.
  • Used in step-down applications.

UC3844BD1G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UC3844BD1G?

The operating voltage range is 10V to 36V.

What package type is the UC3844BD1G available in?

The UC3844BD1G is available in an 8-SOIC package.

What is the operating temperature range for the UC3844BD1G?

The operating temperature range is 0°C to 70°C (TA).

What is the RoHS status of the UC3844BD1G?

The UC3844BD1G is RoHS3 Compliant.

What is the maximum frequency for the UC3844BD1G?

The UC3844BD1G supports switching frequencies up to 500kHz.

What is the maximum duty cycle for the UC3844BD1G?

The maximum duty cycle for the UC3844BD1G is 48%.

What are the UVLO thresholds for the UC3844B variant?

The UC3844B variant has UVLO thresholds of 16V (on) and 10V (off).

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