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ProductsTRIAC Drivers

TRIAC Drivers

  • Blocking voltage 400–800 V
  • Isolation voltage 3750–5000 Vrms
Browse 36 devicesRequest samples

Also known as a Phototriac Coupler, a TRIAC Driver is a specific type of optocoupler used exclusively to provide an optically isolated gate drive current to a TRIAC. This allows designers greater flexibility in selecting the gate drive current and isolation value desired separately from the TRIAC required. The TRIAC Driver and TRIAC combination is a common means of creating a discrete, high powered SSR.

Advantages

ZVC TRIAC Drivers turn on a discrete TRIAC within a small window near zero volts, and thus avoid the creation of transients in the discrete TRIAC. In contrast, upon application of an input current, Random Phase TRIAC Drivers will turn on anywhere within the AC line cycle, and are typically used in dimming applications.

  • Variable load voltages, 400 V to 800 V
  • Random Phase and Zero Volt Cross switching
  • Offered in 4-pin SOP, 4-pin DIP/SMD and 6-pin DIP/SMD packages
  • High input-to-output isolation voltage, 5 kVrms and beyond
  • Low input control current, as low as 2.5 mA

SSO TRIAC Drivers offer high input-to-output isolation in load voltages from 400 V to 800 V, for both Zero Volt Cross (ZVC) and Random Phase (RP) switching.

TRIAC Drivers are composed of an input LED optically coupled to a photo-sensitive TRIAC driver chip. Upon application of an input current — typically 2.5–15 mA — the input LED shines light on the TRIAC driver chip, thereby allowing current flow through the device. This current then flows to the gate of a discrete output TRIAC and allows the load to be switched on or off.

Applications

These advantages make TRIAC Drivers the ideal choice for:

  • Motor control
  • Motor starters
  • Lighting controls
  • Dimmer circuits
  • Static power switches
  • Temperature controls
  • Solenoid and valve controls
  • Solid state relays

Devices

Every device here: Poles Single

Filters

Package type
Switch type
Peak blocking voltage (V)

400 Vto800 V

Isolation voltage (Vrms)

3750 Vrmsto5000 Vrms

On-state voltage (typ) (V)

1.8 Vto2 V

Drive current (max) (mA)

5 mAto15 mA

36 devices
Part numberPolesPackageSwitchingDatasheet
TDM3041Single4 SOPZero Cross40037501.815PDF ↓
TDM3042Single4 SOPZero Cross40037501.810PDF ↓
TDM3043Single4 SOPZero Cross40037501.85PDF ↓
TDM3061Single4 SOPZero Cross60037501.815PDF ↓
TDM3062Single4 SOPZero Cross60037501.810PDF ↓
TDM3063Single4 SOPZero Cross60037501.85PDF ↓
TDM3081Single4 SOPZero Cross80037501.815PDF ↓
TDM3082Single4 SOPZero Cross80037501.810PDF ↓
TDM3083Single4 SOPZero Cross80037501.85PDF ↓
TD3041Single6 DIP/SMDZero Cross40050001.815PDF ↓
TD3042Single6 DIP/SMDZero Cross40050001.810PDF ↓
TD3043Single6 DIP/SMDZero Cross40050001.85PDF ↓
TD3061Single6 DIP/SMDZero Cross60050001.815PDF ↓
TD3062Single6 DIP/SMDZero Cross60050001.810PDF ↓
TD3063Single6 DIP/SMDZero Cross60050001.85PDF ↓
TD3081Single6 DIP/SMDZero Cross80050001.815PDF ↓
TD3082Single6 DIP/SMDZero Cross80050001.810PDF ↓
TD3083Single6 DIP/SMDZero Cross80050001.85PDF ↓
TDM3021Single4 SOPRandom Phase4003750215PDF ↓
TDM3022Single4 SOPRandom Phase4003750210PDF ↓
TDM3023Single4 SOPRandom Phase400375025PDF ↓
TDM3051Single4 SOPRandom Phase6003750215PDF ↓
TDM3052Single4 SOPRandom Phase6003750210PDF ↓
TDM3053Single4 SOPRandom Phase600375025PDF ↓
TDM3281Single4 SOPRandom Phase8003750215PDF ↓
TDM3282Single4 SOPRandom Phase8003750210PDF ↓
TDM3283Single4 SOPRandom Phase800375025PDF ↓
TD3021Single6 DIP/SMDRandom Phase4005000215PDF ↓
TD3022Single6 DIP/SMDRandom Phase4005000210PDF ↓
TD3023Single6 DIP/SMDRandom Phase400500025PDF ↓
TD3051Single6 DIP/SMDRandom Phase6005000215PDF ↓
TD3052Single6 DIP/SMDRandom Phase6005000210PDF ↓
TD3053Single6 DIP/SMDRandom Phase600500025PDF ↓
TD3281Single6 DIP/SMDRandom Phase8005000215PDF ↓
TD3282Single6 DIP/SMDRandom Phase8005000210PDF ↓
TD3283Single6 DIP/SMDRandom Phase800500025PDF ↓

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