Mfr Part #:

UC3872DW

Mfr Name: N-A

The Texas Instruments UC3872DW is a resonant lamp ballast controller designed for driving various gas discharge lamps. It operates with a maximum frequency of 200 kHz and a supply voltage range of 4.5V to 24V.

✓ Total Stock: 32 pcs

$ Price Range: $2.16

UC3872DW Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
ACK ELEKTRONIK ✓ Non-Authorised Inventory information	32 pcs On Request	32 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

UC3872DW Specifications Quick View

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UC3872DW Description

Short technical summary and product information.

The UC3872DW from Texas Instruments is a specialized resonant lamp ballast controller optimized for driving cold cathode fluorescent, neon, and other gas discharge lamps. It utilizes a resonant power stage to generate a sinusoidal lamp drive voltage, which helps minimize switching losses and EMI generation. Lamp intensity can be adjusted using a synchronized buck regulator.

Key electrical specifications include a maximum operating frequency of 200 kHz and an input voltage range from 4.5V to 24V. The device features a low disable current of 1µA, making it suitable for automotive and battery-powered applications. It also incorporates features like Zero Voltage Switching (ZVS) for push-pull drivers, accurate control of lamp current, and variable lamp intensity control.

This controller is housed in a 16-SOIC package and is designed for surface mount applications. It operates within a temperature range of 0 to 70°C. The UC3872DW includes soft-start and open-lamp detection circuitry to minimize component stress during operation. Its design is optimized for smooth duty cycle control up to 100%.

UC3872DW Quick Information

Product Type: Resonant Lamp Ballast Controller

Series: UC3872

Canonical Name: UC3872DW Resonant Lamp Ballast Controller

Subcategory: Special Purpose

UC3872DW Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

UC3872DW Estimated Pricing

Qty	Low	High
1+	$2.16	$2.16

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

UC3872DW Features

Resonant lamp ballast controller for gas discharge lamps.
Operates at a maximum frequency of 200 kHz.
Wide input voltage range from 4.5V to 24V.
Features Zero Voltage Switching (ZVS).
Surface mount 16-SOIC package.

UC3872DW Applications

Drives cold cathode fluorescent lamps.
Suitable for neon and gas discharge lamps.
Used in automotive lighting systems.
Ideal for battery-powered devices.
Enables variable lamp intensity control.

UC3872DW FAQs

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

What is the maximum operating frequency of the UC3872DW?

The maximum operating frequency of the UC3872DW is 200 kHz.

What is the operating temperature range for the UC3872DW?

The UC3872DW operates within a temperature range of 0 to 70°C.

What is the input voltage range for the UC3872DW?

The UC3872DW accepts an input voltage range from 4.5V to 24V.

What type of lamps can the UC3872DW control?

The UC3872DW is designed to control cold cathode fluorescent, neon, and other gas discharge lamps.

What package type is the UC3872DW supplied in?

The UC3872DW is supplied in a 16-SOIC package.