Mfr Part #:

UC2875N

Mfr Name: Unitrode

The Unitrode UC2875N is a bipolar phase-shifted full bridge controller designed for high efficiency at high frequencies. It offers adjustable switching frequency and soft start capabilities.

✓ Total Stock: 18 pcs

$ Price Range: $11.59

UC2875N Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Bristol Electronics ✓ Non-Authorised Inventory information	18 pcs On Request	18 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

UC2875N Specifications Quick View

Most important parameters for selection – full specs in datasheet.

SELECT ALL

Category	New Products
Manufacturer Name	Unitrode
Duty Cycle (Max)	100%
Features	Adjustable switching frequency, Error amplifier, Multi-topology, Soft start, Soft switching, Synchronization pin
Operating Temperature	-25°C to 85°C
Output Current	2A
SVHC Present	Present
Topology	Phase-shifted full bridge

View Similar Products (0)

UC2875N Description

Short technical summary and product information.

The Unitrode UC2875N is an integrated circuit designed for controlling a bridge power stage using phase-shifting techniques. This allows for constant frequency pulse-width modulation combined with resonant, zero-voltage switching, leading to high efficiency performance at elevated frequencies.

Key electrical specifications include a phase-shifted full bridge topology, current, feedforward, and voltage control modes, and an adjustable switching frequency up to 1MHz. It features a maximum duty cycle of 100%, four 2A totem pole outputs, and a 10MHz error amplifier. The device includes undervoltage lockout (UVLO) at 10.75V/9.25V and a low startup current of 150µA.

This controller family can be configured for voltage or current mode operation and includes a separate over-current shutdown for fast fault protection. A programmable time delay is provided to insert dead-time at the turn-on of each output stage, facilitating resonant switching action. The operating temperature range is -25°C to 85°C.

The UC2875N is available in SOIC (DW) and PDIP (N) packages. The SOIC (DW) package has an area of 184.37 mm² with dimensions of 17.9 mm × 10.3 mm, while the PDIP (N) package has an area of 228.702 mm² with dimensions of 24.33 mm × 9.4 mm.

UC2875N Quick Information

Product Type: DC DC Switching Controller

Series: UC2875

Canonical Name: UC2875N Phase Shift Resonant Controller

Subcategory: Power Management ICs

UC2875N Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

UC2875N Estimated Pricing

Qty	Low	High
1+	$11.59	$11.59

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

UC2875N Features

Phase-shifted full bridge controller.
Adjustable switching frequency up to 1MHz.
Four 2A totem pole outputs.
Low startup current of 150µA.
Operates from -25°C to 85°C.

UC2875N Applications

High efficiency power conversion.
Zero-voltage switching applications.
AC/DC and DC/DC converters.
Power supply control circuits.

UC2875N FAQs

6 frequently asked questions generated from this part’s specifications.

What is the topology of the UC2875N?

The UC2875N features a phase-shifted full bridge topology.

What is the maximum switching frequency for the UC2875N?

The UC2875N can operate at switching frequencies up to 1MHz.

What is the output current capability of the UC2875N?

The UC2875N provides four 2A totem pole outputs.

What is the operating temperature range for the UC2875N?

The UC2875N operates within a temperature range of -25°C to 85°C.

What are the Undervoltage Lockout (UVLO) levels for the UC2875N?

The UC2875N has UVLO levels of 10.75V and 9.25V.

What is the startup current of the UC2875N?

The UC2875N has a low startup current of 150µA.