DRDC3105F

Description

The DRDC3105 is an integrated solid-state DC relay driver that can switch inductive loads. It provides a robust driver interface by acting as a buffer stage between sensitive logic circuits and that of 3 to 6V DC inductive relay coils. With a low input drive current requirement, the DRDC3105 only has slight loading on the input circuitry and it will provide good transient isolation between output and input channels. The output switch is guaranteed by design to go open-circuit and fall into the off-state condition when input drive is lost or disconnected. In the industry standard SOT23 and SOT26, the DRDC3105 comes as a single or dual die which can replace three to six individual discrete components within a single integrated package, including a Zener across the output. The Zener will clamp at 6.6V to sink inductive currents to ground which will reduce EMI noise in the system. By integrating the Zener, the DRDC3105 eliminates the need for an external free-wheeling diode and allows the driving of inductive loads such as relays, solenoids, incandescent lamps, and small DC motors.

Feature(s)

Inductive load driver capable of driving 3 to 6V DC coils

Optimized to switch inductive loads from supply of 3 to 5V with the capability to drive coils up to 2.5W from a 5V rail

Fully integrated into a single SOT23 or dual SOT26 package to minimize footprint area and reduce number of components

Includes Zener across output to reduce EMI noise

Internal low saturation BJT to reduce power dissipation in driving high currents into the coil

Output guaranteed to be in off-state condition during no input

Near – Zero quiescent supply current in off-state condition with minimal leakage

Rugged design and inherently robust by using solid-state BJT technology integrated into a single die

ESD Protected up to 1kV on Human Body Model (HBM)

“Lead-Free”, RoHS Compliant

Halogen and Antimony Free "Green" Device

Qualified to AEC-Q101 Standards for High Reliability

Application(s)

Automotive: 5.0 V Driven Relays, Lamp Drivers, Motor Controls

Telecom equipment: Modems, DSL, Cable (EMTA), Line Cards, IP-PBX, Analog Terminal Adaptors, End User Telecom Equipment

Desktop Computers, Printers, Photocopiers

LCD & Plasma TVs, Set Top Boxes

Consumer Appliances, White Goods, Automated Door Control

Industrial equipment inc. Process Control, ATE equipment

Solar inverters