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UC3867DW The Texas Instruments UC3867DW is a DC DC switching controller designed for resonant-mode power supplies. It operates within a voltage range of 7V to 22V and supports multiple topologies.
Mfr Part #:

UC3867DW

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC3867DW is a DC DC switching controller designed for resonant-mode power supplies. It operates within a voltage range of 7V to 22V and supports multiple topologies.
✓ Total Stock: 5,004 pcs
$ Price Range: $3.44

UC3867DW 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
5,000 pcs
On Request
5000 pcs On Request 1 On Request On Request On Request On Request On Request
Speed Components Ltd ✓
Non-Authorised Inventory information
4 pcs
On Request
4 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.

UC3867DW 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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UC3867DW Description

Short technical summary and product information.

The UC3867DW from Texas Instruments is a versatile DC DC switching controller optimized for Zero Current Switched (ZCS) and Zero Voltage Switched (ZVS) quasi-resonant converters. It supports various topologies including full-bridge, half-bridge, and push-pull configurations, offering flexibility in power supply design.

 

This controller features a wide operating voltage range of 7V to 22V and a maximum duty cycle of 100%. Its operating frequency can be programmed from 50kHz to 500kHz, with a voltage-controlled oscillator (VCO) allowing for minimum and maximum frequency settings. Key control features include soft start, a 5V precision reference, and programmable restart delay following a fault condition.

 

The UC3867DW is housed in a 16-SOIC package and is designed for surface mount applications. It operates within a temperature range of 0°C to 70°C (TA). The device includes dual 1 Amp peak FET drivers and options for off-line or DC/DC applications, making it suitable for a range of power management solutions.

 

Note: This part is not recommended for new designs. Consider alternate products like the UCC28600.

UC3867DW Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC3867DW Resonant-Mode PWM Controller
Subcategory: Power Management ICs

UC3867DW Compliance

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

UC3867DW Estimated Pricing

Qty Low High
1+ $3.44 $3.44

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

UC3867DW Features

  • Controls ZCS/ZVS quasi-resonant converters.
  • Supports multiple power supply topologies.
  • Wide operating voltage from 7V to 22V.
  • Programmable frequency from 10kHz to 1MHz.
  • Surface mount 16-SOIC package.

UC3867DW Applications

  • Controls zero-current/zero-voltage switched resonant converters
  • Used in full-bridge and half-bridge power topologies
  • Suitable for push-pull DC/DC converter designs
  • Ideal for off-line and DC/DC power supply applications
  • Enables soft-switching in quasi-resonant converter systems

UC3867DW FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UC3867DW?

The operating voltage range for the UC3867DW is 7V to 22V.

What package type is the UC3867DW available in?

The UC3867DW is available in a 16-SOIC package.

What is the operating temperature range of the UC3867DW?

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

What is the RoHS status of the UC3867DW?

The RoHS status is RoHS3 Compliant.

What is the maximum duty cycle for the UC3867DW?

The maximum duty cycle is 100%.

What topologies does the UC3867DW support?

The UC3867DW supports Full-Bridge, Half-Bridge, and Push-Pull topologies.

What is the frequency range for the UC3867DW?

The frequency range is 50kHz to 500kHz.

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