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UC3879N The Texas Instruments UC3879N is a phase shift resonant controller designed for high-efficiency power conversion. It operates within a 9V to 20V supply range and supports switching frequencies up to 300kHz.
Mfr Part #:

UC3879N

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC3879N is a phase shift resonant controller designed for high-efficiency power conversion. It operates within a 9V to 20V supply range and supports switching frequencies up to 300kHz.
✓ Total Stock: 6,676 pcs
$ Price Range: $8.34

UC3879N Available from 3 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
4,000 pcs
On Request
4000 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
2,080 pcs
On Request
2080 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
596 pcs
On Request
596 pcs On Request 1 On Request On Request 10+ 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.

UC3879N Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Junction Temperature
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Storage Temperature
Supplier Device Package
Supplier Package
Supply Voltage
Synchronous Rectifier
Topology
Voltage
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UC3879N Description

Short technical summary and product information.

The UC3879N 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 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 UC3879N is suitable for applications requiring efficient power conversion. It is available in a 20-PDIP package and is designed for through-hole mounting. The operating temperature range is 0°C to 70°C.

 

Note: This product is not recommended for new designs. Consider alternate products like the UCC28951 for new projects.

UC3879N Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC3879N Phase Shift Resonant Controller
Subcategory: Power Management ICs

UC3879N Compliance

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

UC3879N Estimated Pricing

Qty Low High
1+ $8.34 $8.34

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

UC3879N Features

  • Phase shift resonant controller for high efficiency.
  • Operates from 9V to 20V supply voltage.
  • Supports switching frequencies up to 300kHz.
  • 10MHz error amplifier and soft start control.
  • Available in 20-PDIP through-hole package.

UC3879N Applications

  • Enables zero-voltage switching for efficiency.
  • Suitable for voltage or current mode topologies.
  • Used in power conversion applications.
  • Designed for half-bridge power stages.

UC3879N FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UC3879N?

The UC3879N operates within a voltage range of 9V to 20V.

What is the maximum switching frequency supported by the UC3879N?

The UC3879N supports switching frequencies up to 300kHz.

What type of package is the UC3879N available in?

The UC3879N is available in a 20-PDIP package.

What is the operating temperature range for the UC3879N?

The operating temperature range for the UC3879N is 0°C to 70°C.

What is the RoHS status of the UC3879N?

The UC3879N is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for the UC3879N?

The Moisture Sensitivity Level (MSL) for the UC3879N is 1 Unlimited.

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