U2100B-x ATMEL Corporation, U2100B-x Datasheet - Page 4

• Manufacturer Part Number: U2100B-x
• Description: Timer Control For Triac And Relay
• Manufacturer: ATMEL Corporation

Tracking Time Pin 7
An internal RC oscillator with following divider stage
1:2
RC-values for required final time, t
follows:
Trigger Inputs Pins 5 and 6 (Figures 8, 9)
Two AND-connected, identical inputs determine the
trigger conditions of the monostable time stages, i.e., both
inputs must be in position “ON” so that the output is
switched ON. The tracking time starts after the trigger
conditions has elapsed. The output ON state is given until
the tracking time is over.
Input Pin 5 is a simple comparator whereas input Pin 6 is
built up as a window discriminator.
The noise suppression for t
there are no peak noise signals at the inputs which could
trigger the circuit.
At the same time, the retrigger is delayed for a duration
of 640 ms (t
Absolute Maximum Ratings
Reference point Pin 1, unless otherwise specified
U2100B
Supply
Supply current
Peak current
Supply voltage
Reference voltage source
Output current
Synchronization
Input current
Window monitoring
Input voltage
Enable Schmitt trigger
Input voltage
Driver output
Collector voltage
Storage temperature range
Junction temperature
Ambient temperature range
4 (8)
10
C
t
R
t
allows a very long and reproducible tracking time.
t
t
[ s ] + C
[ mF ] +
[ W ] +
t
10 ms
OFF
1.6
t
1.6
[ mF ]
), to avoid noise signal to trigger the relay.
t
t
t
t
1024
t
[ s ]
[ s ]
1024
R
Parameters
t
10 ms
[ W ]
10
ON
10
10
6
C
6
6
R
= 40 ms guarantees that
t
1.6
[ mF ]
t
[ W ]
t
, can be calculated as
1024
Pin 2
Pin 8
Pin 4
Pin 6
Pin 5
Pin 3
T
2
T
T
Symbol
1
= 0.65 V
T
2
i
T
= 0.5 V
–V
–V
–V
1
I
Sync.
–V
T
+ 0.65 V
–I
–i
I
Sync.
T
amb
+ 0.5 V
stg
O
S
s
j
S
1
1
o
V
V
5
V
Ref
Ref
Ref
Figure 8. Trigger condition, Pin 5
V
Figure 9. Trigger condition, Pin 6
6
0
Ref
Ref
Ref
0
–40 to +125
V
V
0 to 100
V
Value
Ref
Ref
S
125
10
60
32
20
3
5
to 2
to 0
to 0
Hysteresis
OFF
ON
OFF
Rev. A3, 15-Jan-01
ON
ON
Unit
mA
mA
mA
mA
mA
V
V
V
V
C
C
C