[IES]

2 GENERAL DESCRIPTION
The OM5428 is a bipolar integrated circuit delivering negative pulses for triggering a triac. The flexibility of the circuit makes it suitable for a variety of applications, such as:

• Synchronous on/off switching
• Phase control
• Time-proportional control
• Temperature control
• Motor speed control

FEATURES
• Adjustable proportional range
• Adjustable hysteresis
• Adjustable firing burst repetition time
• Adjustable pulse width
• Supplied from the mains
• Provides supply for external temperature bridge
• Low supply current, low dissipation