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UC3702

Part Number	UC3702
Manufacturer	Unitrode
Description	Quad PWM Relay Driver
Published	Aug 26, 2005
Detailed Description	UC1702 UC2702 UC3702 Quad PWM Relay Driver FEATURES • Maintains Constant Average Relay Voltage With Varying Supply Volt...
Datasheet	UC3702 PDF File

Overview

UC1702 UC2702 UC3702 Quad PWM Relay Driver FEATURES • Maintains Constant Average Relay Voltage With Varying Supply Voltages • VBUS Voltages up to 42.
5V • Up to 50mA per Relay • Integrated Schottky Flyback Diodes • Individual Relay Control Inputs • Short Circuit Protection • User Selectable Operating Center Frequency and Relay Voltage • Global Reset DESCRIPTION The UC3702 Quad Relay Driver is intended to drive up to four relays from logic inputs using an unregulated relay voltage supply.
The relays are driven from the Bus supply in a power efficient PWM converter fashion.
The relay coil is used as the inductive element.
(See the application's section concerning the relay selection.
) VBUS mu...

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