UC3875DWP The Texas Instruments UC3875DWP is an AC/DC switching regulator designed for high efficiency power conversion. It operates at frequencies up to 1MHz and supports a wide voltage range.
Mfr Part #:

UC3875DWP

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC3875DWP is an AC/DC switching regulator designed for high efficiency power conversion. It operates at frequencies up to 1MHz and supports a wide voltage range.
✓ Total Stock: 12,712 pcs
$ Price Range: $0.75

UC3875DWP Available from 4 distributors

✓ Authorised
✓ Non-Authorised

UC3875DWP Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Duty Cycle
Fault Protection
Frequency
Mounting Type
Operating Temperature
Output Current
Output Isolation
SVHC Present
Supplier Device Package
Topology
Voltage

UC3875DWP Description

Short technical summary and product information.

The Texas Instruments UC3875DWP is an active bipolar phase-shifted full-bridge controller. It is designed for high efficiency performance at high frequencies, utilizing resonant zero-voltage switching techniques. This controller operates with a voltage range of 9.5V to 20V and supports adjustable switching frequencies up to 1MHz.

 

Key features include a 100% duty cycle control, programmable output turn-on delay, and compatibility with voltage or current mode topologies. The device incorporates an error amplifier with a 10MHz bandwidth, soft-start control, and a latched over-current comparator with full-cycle restart for robust fault protection. It also includes undervoltage lockout (UVLO) at 10.75V/9.25V and low startup current of 150µA.

 

The UC3875DWP is available in a 28-SOIC package suitable for surface mounting. Its operating temperature range is 0°C to 70°C (TA). The controller's architecture allows for precise phase-shifting of switching elements, enabling efficient power stage control in applications requiring high power density and efficiency.

 

This device is well-suited for applications requiring efficient AC/DC conversion, such as power supplies and power management systems where high switching frequencies and soft switching are critical for performance and reliability.

UC3875DWP Quick Information

Product Type: AC/DC Switching Regulator
Series: UC3875
Canonical Name: UC3875 Phase Shift Resonant Controller
Subcategory: Phase Shift Resonant Controller

UC3875DWP Compliance

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

UC3875DWP Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

UC3875DWP Features

  • Phase-shifted full-bridge controller
  • Zero-voltage switching for high efficiency
  • Adjustable switching frequency to 1MHz
  • Wide operating voltage 9.5V to 20V
  • Surface mount 28-SOIC package

UC3875DWP Applications

  • High efficiency power supplies
  • Offline switching regulators
  • Power management systems
  • Resonant power conversion

UC3875DWP FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the UC3875DWP?

The operating voltage range is 9.5V to 20V.

What package is the UC3875DWP available in?

The UC3875DWP is available in a 28-SOIC (0.295", 7.50mm Width) surface-mount package.

What is the operating temperature range?

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

What is the output current capability?

The UC3875DWP provides 2A totem-pole outputs.

What switching frequency does the UC3875DWP support?

The switching frequency is 1MHz.

What undervoltage lockout thresholds does the UC3875DWP have?

The nominal UVLO thresholds are 9.25V and 10.75V.

Does the UC3875DWP support synchronization?

Yes, it includes frequency control, soft start, and synchronization features.

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