U2100B Datasheet, PDF (1/9 Pages) TEMIC Semiconductors – Timer Control for Triac and Relay

Timer Control for Triac and Relay
U2100B
Description
The timer control circuit, U2100B, uses bipolar technol-
ogy. 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)
D Two or three wire application
Package: DIP8, SO8
Applications
D Motion detectors
D Touch sensors
D Timer
8
C₂
Trigger
6
signal
5
En-
able
C_t
7
R_t
–V_Ref
0.5 V_Ref
+
–
Trigger
window
+
–
0.6 V_Ref
Supply voltage
limitation
Voltage control
monitoring
Noise
suppression
40 ms
Retrigger
delay
640 ms
Sync
Mode
selection
Control
logic
0.6 V_Ref
ON
0.5 V_Ref
OFF
RC Oscillator
Divider 1:2¹⁰
2
C₁
–V_S
4
R₁
D₁
R_sync
Load
3
R_G
Output
1
GND
L
Z
V_mains
N
95 9876
Figure 1. Block diagram with external circuit
TELEFUNKEN Semiconductors
1 (9)
Rev. A1, 30-May-96