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UC3879DWG4 The Texas Instruments UC3879DWG4 is a phase shift resonant controller designed for half-bridge power stages. It operates with a supply voltage of 9V to 20V and a switching frequency up to 300kHz.
Mfr Part #:

UC3879DWG4

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC3879DWG4 is a phase shift resonant controller designed for half-bridge power stages. It operates with a supply voltage of 9V to 20V and a switching frequency up to 300kHz.
✓ Total Stock: 7 pcs
$ Price Range: $0.78

UC3879DWG4 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
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Bristol Electronics ✓
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7 pcs
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UC3879DWG4 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
SVHC Present
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
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UC3879DWG4 Description

Short technical summary and product information.

The UC3879DWG4 from Texas Instruments is a phase shift resonant controller that facilitates constant frequency pulse width modulation combined with resonant, zero-voltage switching for high efficiency. It controls a bridge power stage by phase shifting the switching of one half-bridge relative to the other.

 

This controller is compatible with voltage mode or current mode topologies and offers practical operation 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 provides soft start control and outputs that are active low during UVLO.

 

The UC3879DWG4 is available in a 20-SOIC package and is designed for surface mount applications. It operates within a temperature range of 0°C to 70°C.

 

Note: This product is not recommended for new designs. Existing customers can continue to use it, but new designs should consider an alternate product like the UCC28951.

UC3879DWG4 Quick Information

Product Type: Phase Shift Resonant Controller
Series: UC3879
Canonical Name: UC3879 Phase Shift Resonant Controller
Subcategory: Switching Regulators

UC3879DWG4 Compliance

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

UC3879DWG4 Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

UC3879DWG4 Features

  • Phase shift resonant controller for half-bridge stages.
  • Operates at switching frequencies up to 300 kHz.
  • Compatible with voltage or current mode topologies.
  • Features 10-MHz error amplifier and soft start.
  • Surface mount 20-SOIC package.

UC3879DWG4 Applications

  • High efficiency power conversion.
  • Resonant zero-voltage switching.
  • AC/DC switching regulators.
  • Power management applications.

UC3879DWG4 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the UC3879DWG4?

The supply voltage range is 9V to 20V.

What is the operating temperature range?

The operating temperature range is 0°C to 70°C.

What package is the UC3879DWG4 available in?

The UC3879DWG4 is available in a 20-SOIC surface-mount package.

What is the maximum switching frequency?

The maximum switching frequency is 300kHz.

What topology does the UC3879DWG4 support?

The UC3879DWG4 supports half-bridge topology.

What control modes does the UC3879DWG4 support?

It supports voltage mode or current mode control.

How many outputs does the UC3879DWG4 have?

It has four transistor driver outputs.

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