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UC3879DW The Texas Instruments UC3879DW is a Phase Shift Resonant Controller designed for high-efficiency power stage control. It operates with a supply voltage range of 9V to 20V.
Mfr Part #:

UC3879DW

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC3879DW is a Phase Shift Resonant Controller designed for high-efficiency power stage control. It operates with a supply voltage range of 9V to 20V.
✓ Total Stock: 52,780 pcs
$ Price Range: $6.99

UC3879DW Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
45,200 pcs
On Request
45200 pcs On Request 1 On Request On Request On Request On Request On Request
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
Xingangxin ✓
Non-Authorised Inventory information
2,580 pcs
On Request
2580 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.

UC3879DW Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
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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UC3879DW Description

Short technical summary and product information.

The UC3879DW from Texas Instruments is an enhanced bipolar phase-shifted full-bridge controller. It is designed to control a bridge power stage by phase shifting the switching of one half-bridge with respect to the other, enabling constant frequency pulse width modulation combined with resonant, zero-voltage switching for high efficiency.

 

This controller is compatible with voltage mode or current mode topologies and can operate at switching frequencies up to 300 kHz. Key features include a 10-MHz error amplifier, pin-programmable undervoltage lockout, and a low startup current of 150 μA. It also offers soft start control and outputs that are active low during UVLO.

 

The UC3879DW is available in a 20-pin SOIC package and is suitable for surface mount applications. It operates within a temperature range of 0°C to 70°C.

 

This device can be configured for various control modes, including voltage mode or current mode operation, with overcurrent shutdown for fault protection. It supports clock synchronization and offers programmable output turn-on delay.

UC3879DW Quick Information

Product Type: Switching Controller
Canonical Name: UC3879DW Phase Shift Resonant Controller
Subcategory: Switching Regulators

UC3879DW Compliance

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

UC3879DW Estimated Pricing

Qty Low High
1+ $6.99 $6.99

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

UC3879DW Features

  • Phase-shifted resonant controller for high efficiency.
  • Operates at switching frequencies up to 300 kHz.
  • Wide supply voltage range of 9V to 20V.
  • Programmable undervoltage lockout.
  • Low startup current of 150 μA.

UC3879DW Applications

  • Controls bridge power stages.
  • Enables zero-voltage switching.
  • Supports constant frequency PWM.
  • Used in high-efficiency designs.

UC3879DW FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the UC3879DW?

The UC3879DW operates from a supply voltage of 9V to 20V.

What is the operating temperature range of the UC3879DW?

The UC3879DW operates from 0°C to 70°C.

What package does the UC3879DW come in?

The UC3879DW is available in a 20-SOIC surface-mount package.

What is the maximum switching frequency of the UC3879DW?

The maximum switching frequency is 300 kHz.

How many outputs does the UC3879DW have?

The UC3879DW has four transistor driver outputs.

What topology does the UC3879DW support?

The UC3879DW supports a half-bridge topology.

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