assr-1510 Avago Technologies, assr-1510 Datasheet - Page 11

• Manufacturer Part Number: assr-1510
• Description: High Current, Solid State Relay Photo Mosfet 60v/1.0a/0.5?
• Manufacturer: Avago Technologies

Applications Information
On-Resistance and Derating Curves
The Output On-Resistance, R
sheet, is the resistance measured across the output
contact when a pulsed current signal (Io=1A) is applied
to the output pins. The use of a pulsed signal (≤ 30ms)
implies that each junction temperature is equal to
the ambient and case temperatures. The steady-state
resistance, Rss, on the other hand, is the value of the
resistance measured across the output contact when
a DC current signal is applied to the output pins for
a duration sufficient to reach thermal equilibrium.
Rss includes the effects of the temperature rise in the
device.
Figure 1. Maximum Output Current Rating vs Ambient Temperature
(ASSR-1510-003E)
Figure 3. Maximum Output Current Rating vs Ambient Temperature
(ASSR-1511-001E DC Connection)
11
0.5
0.8
0.6
0.4
0.2
1.5
2
0
0
1
1
-40
-40
I
F
= 10mA, 4-Layer Board
-20
-20
I
F
T
= 10mA, 4-Layer Board
T
0
0
A
A
- TEMPERATURE -
- TEMPERATURE -
Operating
Operating
Area
Safe
Safe
Area
20
20
40
40
(ON)
, specified in this data
o
60
o
C
60
C
80
80
100
100
Derating curves are shown in Figures 1, 2, 3 and 4,
specifying the maximum output current allowable for
a given ambient temperature. The maximum allowable
output current and power dissipation are related by the
expression Rss=Po(max)/(Io(max))
be calculated. Staying within the safe area assures that
the steady state MOSFET junction temperature remains
less than 125°C.
Turn On Time and Turn Off Time Variation
The ASSR-15xx Series exhibits a very fast turn on and
turn off time. Both the turn on and turn off time can
be adjusted by choosing proper forward current as
depicted in Figures 12 and 14. The changes of the turn
on and turn off time with ambient temperature are also
shown in Figures 13 and 15.
Figure 2. Maximum Output Current Rating vs Ambient Temperature
(ASSR-1511-001E)
Figure 4. Maximum Output Current Rating vs Ambient Temperature
(ASSR-1520-002E)
0.8
0.6
0.4
0.2
0.8
0.6
0.4
0.2
0
0
1
1
-40
-40
-20
-20
2-Channel
I
T
F
0
T
I
A
0
= 10mA, 4-Layer Board
F
A
- TEMPERATURE -
= 10mA, 4-Layer Board
1-Channel
- TEMPERATURE -
Operating
Operating
Safe
Area
20
Area
Safe
20
40
40
o
60
2
C
o
60
C
from which Rss can
80
80
100
100