U2101B Datasheet, PDF (1/9 Pages) TEMIC Semiconductors – Relay Timer

Relay Timer
U2101B
Description
The U2101B monolithic integrated bipolar circuit is a
versatile timer device for relay control. Because of two
integrated, freely configurable operational amplifiers, it
covers a very wide range of applications.
Features
D Adjustable window for trigger input
D Enable input for triggering
D Adjustable noise suppression
D Adjustable and retriggerable tracking time
D Enable and block delay
* D Two integrated operational amplifiers
freely connectable
D 50 mA relay driver
Applications
D Motion detectors
D Tracking controllers
D Multiple timer
D Conditional switches
D Clock generators
Package: DIP16, SO16
1
15
+
14
–
OP 1
13
12
f_osc1
11
Window adjustment
V_Ref
–5V
RC oscillator 1
10
Trigger
window
Out (On): 0.1 V_Ref
Out (Off): 0.5 V_Ref
9
Enable
schmitt trigger
On:
0.6 V_Ref
On:
4 T_osc2
Restart on: 64 T_osc2
Noise
suppression
On / Off: 1024 T_osc2
Timer 2, 3, 4
R_a
60 kW
R_b
40 kW
Timer 1
1024 T_osc1
Control logic
RC oscillator 2
+
OP 2 ^–
Voltage
limitation
Voltage
monitoring
95 9738
16
2
3
4
GND
5
–V_S
6
Relay driver
50 mA
7
f_osc2
8
Figure 1. Block diagram
TELEFUNKEN Semiconductors
1 (9)
Rev. A1, 30-May-96