DESCRIPTION

The VO4154 and VO4156 consists of a GaAs IRLED

optically coupled to a photosensitive zero crossing TRIAC

packaged in a DIP-6 package.

High input sensitivity is achieved by using an emitter

follower phototransistor and a cascaded SCR predriver

resulting in an LED trigger current of 1.6 mA for bin D, 2 mA

for bin H, and 3 mA for bin M.

The phototriac zero crossing family uses a proprietary dV/dt

clamp resulting in a static dV/dt of greater than 5 kV/μs.

The VO4154 and VO4156 isolates low-voltage logic from

120 VAC, 240 VAC, and 380 VAC lines to control resistive,

inductive, or capacitive loads including motors, solenoids,

high current thyristors or TRIAC and relays.

FEATURES

? High static dV/dt 5 kV/μs

? High input sensitivity IFT = 1.6 mA, 2 mA, and

3 mA

? 300 mA on-state current

? Zero voltage crossing detector

? 400 V and 600 V blocking voltage

? Isolation rated voltage 4420 VRMS

? Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

APPLICATIONS

? Solid-state relays

? Industrial controls

? Office equipment

? Consumer appliances

AGENCY APPROVALS

? UL1577

? cUL

? DIN EN 60747-5-5 (VDE 0884-5), available with option 1

? FIMKO