U2100B-MFPG3Y Atmel, U2100B-MFPG3Y Datasheet - Page 8

• Manufacturer Part Number: U2100B-MFPG3Y
• Description: IC TIMER CTRL TRIAC/RELAY 8SOIC
• Manufacturer: Atmel
• Type: Timer Controlr

Specifications of U2100B-MFPG3Y

• Operating Temperature: 0°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Frequency-max: -
• Output: -
• Input: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

3.5
3.6
8
Tracking Time Pin 7
Trigger Inputs Pins 5 and 6
U2100B
An internal RC oscillator with a following divider stage 1:2
tracking time.
The RC values for the required final time, t
Two AND-connected, identical inputs determine the trigger conditions of the monostable time
stages
output is switched on. The tracking time starts after the trigger conditions have elapsed. The out-
put ON state is given until the tracking time has elapsed.
Input pin 5 is a simple comparator, whereas input pin 6 is designed as a window discriminator.
The noise suppression for t
trigger the circuit.
At the same time, the retrigger function is delayed for a duration of 640 ms (t
signal that may trigger the relay.
Figure 3-6.
R
C
t
t
[s]
t
t
[
[µF
=
=
C
-------------------------------------------------------------------------- -
=
(Figure
t
----------------------------------------------------
1.6
[µF]
-------------------------------------------------- -
1.6
t
t
t
1024
[s]
t
Trigger Condition, Pin 5
[s]
1024
R
3-6,
t
[
10
10
10
Figure 3-7 on page
6
C
6
6
R
t
1.6
[µF]
t
T
[
T
2
1
= 0.65 V
= 0.5 V
1024
ON
V
= 40 ms prevents peak noise signals at the inputs which could
V
5
Ref
Ref
Ref
0
9), i.e., both inputs must be in position “ON” so that the
t
, can be calculated as follows:
Hysteresis
OFF
ON
10
allows a very long and reproducible
OFF
) to avoid noise
4769C–INDCO–07/05