U2102B Datasheet, PDF (1/19 Pages) TEMIC Semiconductors – Multifunction Timer

Features
• Integrated Reverse Phase Control
• Mode Selection:
– Zero-voltage Switch with Static Output
– Two-stage Reverse Phase Control with Switch-off
– Two-stage Reverse Phase Control with Dimming Function
• Current Monitoring:
– High-speed Short-circuit Monitoring with Output
– High-current Monitoring with Integrating Buffer
• Integrated Chip Temperature Monitoring
• Adjustable and Retriggerable Tracking Time
• External Window Adjustment for Sensor Input
• Enable Input for Triggering
Multifunction
Timer IC
U2102B
Applications
• Two- or Three-wire Applications
• Motion Detectors
• Time-delay Relays
• Dimmers
• Reverse Phase Controls
• Timers
1. Description
The timer control circuit U2102B is based on bipolar technology. The output stage can
switch either a MOSFET or an IGBT. Two sensor inputs and the retriggerable and
adjustable tracking time useful for a wide range of applications. By using the reverse
phase-control technique, the resistive load can be dimmed without the need of a com-
pensation inductance. The integrated current monitoring function provides a very fast
switch-off in case of a short-circuit condition. No additional fuse is needed.
Rev. 4767B–INDCO–10/05