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UC3879DWTR The Texas Instruments UC3879DWTR is a phase shift resonant controller designed for half-bridge power stages. It operates with a supply voltage range of 9V to 20V and supports switching frequencies up to 300kHz.
Mfr Part #:

UC3879DWTR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC3879DWTR is a phase shift resonant controller designed for half-bridge power stages. It operates with a supply voltage range of 9V to 20V and supports switching frequencies up to 300kHz.
✓ Total Stock: 9,040 pcs
$ Price Range: $6.46

UC3879DWTR Available from 2 distributors

✓ Authorised
✓ Non-Authorised
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.

UC3879DWTR 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
Supplier Package
Synchronous Rectifier
Topology
Voltage
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UC3879DWTR Description

Short technical summary and product information.

The UC3879DWTR from Texas Instruments is an enhanced bipolar phase shifted full bridge controller. It controls 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 UC3879DWTR is available in a 20-pin SOIC package and operates within a temperature range of 0°C to 70°C. It is noted as 'NOT RECOMMENDED FOR NEW DESIGNS'.

 

This device is suitable for applications requiring efficient power conversion through resonant switching techniques.

UC3879DWTR Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC3879DWTR Phase Shift Resonant Controller
Subcategory: Phase Shift Resonant Controller

UC3879DWTR Compliance

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

UC3879DWTR Estimated Pricing

Qty Low High
1+ $6.46 $6.46

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

UC3879DWTR Features

  • Phase shift resonant controller for half-bridge stages.
  • Operates at switching frequencies up to 300 kHz.
  • Features a 10 MHz error amplifier.
  • Low startup current of 150 μA.
  • Available in a 20-SOIC package.

UC3879DWTR Applications

  • Enables high efficiency zero-voltage switching.
  • Suitable for resonant power conversion.
  • Supports constant frequency PWM operation.
  • Used in half-bridge power stage control.

UC3879DWTR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the UC3879DWTR?

The supply voltage range is 9V to 20V.

What package is the UC3879DWTR available in?

It is available in a 20-SOIC surface-mount package (0.295 inch width, 7.50 mm width).

What is the operating temperature range of the UC3879DWTR?

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

How many outputs does the UC3879DWTR have?

It has 4 outputs.

What is the maximum switching frequency of the UC3879DWTR?

The maximum switching frequency is 300 kHz.

Does the UC3879DWTR support synchronous rectification?

Yes, it supports synchronous rectifier functionality.

What is the maximum duty cycle of the UC3879DWTR?

The maximum duty cycle is 50%.

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