U2100B
Description
The timer control circuit, U2100B, uses bipolar technology. It has different mode selections (Zero voltage switch, Phase control, Relay control). The output stage is triggered according to input conditions. It can be used in triac application for two or three wire system as a power switch.
Features
D Adjustable and retriggerable tracking time D Window monitoring for sensor input D Enable input for triggering D Internal noise suppression (40 ms) and retrigger blocking (640 ms)
Applications
D Motion detectors D Touch sensors D Timer
D Two or three wire application
Package: DIP8, SO8
- VRef C2 0.5 VRef +
- Trigger signal 6 Trigger window +
- 5 0.6 VRef
Supply voltage limitation Voltage control monitoring Sync Mode selection
- VS 4
C1 L R1 Rsync Load Z D1
Noise suppression 40 ms Retrigger delay 640 ms
Control logic
3 Output
Vmains
1 Enable Ct 7 RC Oscillator Rt
95 9876
GND 0.6 VRef 0.5 VRef ON OFF Divider 1:210
Figure 1. Block diagram with external...
