Issue 3 - July 2006 www.zetex.com
© Zetex Semiconductors plc 2006
ZSCT1555
01234 5
0.80
0.85
0.90
0.95
1.00
1.05
Pulse Duration
relative to Vcc=5v
Supply Voltage (V)
Normalized Output Pulse Duration
v Supply Voltage
6
-20°C
+25°C
+100°C
200
160
120
80
40
0
1.0 2.0 3.0 4.0 5.00.0
Supply Current (µA)
Supply Voltage (V)
Supply Current v Supply Voltage
8
6
4
2
0
00.2
Propagation Delay (µs)
Lowest Voltage Level of Trigger Pulse (xVcc)
Output Propagation Delay
Vcc=5v
0.1
+100°C
+25°C
-20°C
Rout/Vcc=1K
5
4
3
2
1
0
00.10.2
Propagation Delay (µs)
Lowest Voltage Level of Trigger Pulse (xVcc)
Output Propagation Delay
Vcc=1.5v
+25°C
-20°C
Rout/Vcc=1K
5
4
3
2
1
0
00.1
+100°C
+25°C
-20°C
Minimum Pulse Width (µs)
Lowest Voltage Level of Trigger Pulse (xVcc)
Minimum Pulse Width Required for
Triggering
Vcc=1.5v
Rout/Vcc = 1K
5
4
3
2
1
0
00.2
+100°C
+25°C
-20°C
Minimum Pulse Width (µs)
Lowest Voltage Level of Trigger Pulse (xVcc)
Minimum Pulse Width Required for
Triggering
Vcc=5v
0.1
Rout/Vcc = 1K
+100°C
TYPICAL CHARACTERISTICS
Issue 3 - July 2006 www.zetex.com
© Zetex Semiconductors plc 2006
ZSCT1555
Vcc=5v
-20°C
+25°C
+100°C
1
0.10.010.001
Sink Current (mA)
Discharge Transistor Voltage
v Sink Current
10
1
0.1
0.01
Discharge Transistor Voltage (V)
Vcc=1.5v
-20°C
+25°C
+100°C
1
0.10.010.001
Sink Current (mA)
Discharge Transistor Voltage
v Sink Current
10
1
0.1
0.001
Discharge Transistor Voltage (V)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.01 0.1 1 10 100
Low Level Output Current (mA)
Output Low Voltage Drop v
Output Current
Low Level Output Voltage (V)
Vcc=1.5v
-20°C
+25°C
+100°C
1.0
0.8
0.6
0.4
0.2
0.0
0.01 0.1 1 10 100
Low Level Output Current (mA)
Output Low Voltage Drop v
Output Current
Low Level Output Voltage (V)
-20°C
+25°C
+100°C
Vcc=5v
0.5
0.4
0.3
0.2
0.1
0.0
-20°C
+25°C
+100°C
Vcc=5v
Vcc - Vout (V)
0.001 0.01 0.1 1.0
High Level Output Current (mA)
Output High Voltage Drop v
Output Current
1.0
0.8
0.6
0.4
0.2
0.0
1.0
0.10.01
0.001
-20°C
+25°C
+100°C
Vcc=1.5v
High-Level Output Current (mA)
Output High Voltage Drop v
Output Current
Vcc - Vout (V)
TYPICAL CHARACTERISTICS
Issue 3 - July 2006 www.zetex.com
© Zetex Semiconductors plc 2006
FUNCTIONAL DIAGRAM
FUNCTIONAL TABLE
RESET TRIGGER VALUE THRESHOLD
VOLTAGE
OUTPUT DISCHARGE
SWITCH
Low N/A N/A Low On
High <V
CC
/5 N/A High Off
High >V
CC
/5 >4V
CC
/5 Low On
High >V
CC
/5 <4V
CC
/5 As Previously established
POWER DERATING TABLE
Package
TA25°C
Power Rating
Derating Factor
Above TA=25°C
T
A
=70°C Power
Rating
T
A
=85°C Power
Rating
N8 625mW 6.25mW/°C 330mW 250mW
D8 625mW 6.25mW/°C 330mW 250mW
ZSCT1555

ZSCT1555D8

Mfr. #:
Manufacturer:
Diodes Incorporated
Description:
Timers & Support Products
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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