U2100B-MFPG3Y Atmel, U2100B-MFPG3Y Datasheet - Page 5

• 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

3.1
3.2
4769C–INDCO–07/05
Mode Selection Pin 4 and Supply Voltage Pin 2
Zero Voltage Switch Operation
The operational modes can be selected by the external voltage at the synchronous input pin 4
(clamping). The mode selection determines the current requirement of the relay's or triac's driver
stage and hence the selection of the supply voltage.
Selection condition:
V
I
where:
I
I
I
V
Required firing pulse width t
where:
I
P
R
t
R
tot
S
P
X
L
p
4
M
1
sync
= I
=
= internal synchronous limitation, without external clamping
2
-- - arcsin
[k
S
0.85
+ I
p
V
-------------------- -
+ I
M
2 I
V
-------------------------------------------------------------------------------- - 176
–
I
-------------------
P
M
tot
X
L
= Supply current of the IC without load
= Average trigger current I
= External circuit current requirement
= Mains voltage
= Triac latching current
= Power at load Z
V
[V]
S
V
M
2
2sin
1.8
(Figure 3-3 on page
10
p
-2
t
p
[s]
–
0.7
–
G
6)
U2100B
5