PRELIMINARY DATA SHEET
CURRENT LIMIT TYPE
4 PIN SOP 400 V 1-CH OCMOS FET
FEATURES
鈥?LIMIT CURRENT:
I
LMT
= 155 to 210 mA
鈥?SMALL AND THIN PACKAGE:
4 pin SOP, Height = 2.1 mm
鈥?1 CHANNEL TYPE:
1a output
鈥?LOW LED OPERATING CURRENT:
I
F
= 2 mA
鈥?DESIGNED FOR AC/DC SWITCHING LINE CHANGER
鈥?LOW OFFSET VOLTAGE
鈥?SURFACE MOUNT AVAILABLE:
PS7241C-1A-E3, E4, F3, F4
PS7241C-1A
DESCRIPTION
The PS7241C-1A is a solid state relay containing GaAs LEDs
on the light emitting side (input side) and MOS FETs including
current control circuit on the output side. The currrent control
circuit of the OCMOS FET protects this device from thermal
breakdown and output circuit.
It is suitable for analog signal control because of its low offset
and high linearity.
APPLICATIONS
鈥?LAPTOP PC, PDA
鈥?MODEM CARD
鈥?TELEPHONE, FAX
鈥?MEASUREMENT EQUIPMENT
ELECTRICAL CHARACTERISTICS
(T
A
= 25
擄C)
PART NUMBER
SYMBOLS
PARAMETERS
Forward Voltage, I
F
= 10 mA
Reverse Current, V
R
= 5 V
Off-State Leakage Current, V
D
= 400 V
Output Capacitance, V
D
= 0 V, f = 1 MHz
LED On-State Current, I
L
= 120 mA
On-state Resistance, I
F
= 10 mA, I
L
= 10 mA
I
F
= 10 mA, I
L
= 120 mA
Turn-on Time
1
,
Turn-off Time
1
I
F
= 10 mA, V
O
= 5 V, PW
鈮?/div>
10 ms
UNITS
V
碌A
碌A
pF
mA
鈩?/div>
鈩?/div>
ms
ms
鈩?/div>
pF
mA
155
10
9
0.5
180
210
28
24
0.5
0.07
65
2.0
35
30
2.0
0.2
MIN
PS7241C-1A
TYP
1.2
MAX
1.4
5.0
1.0
MOS
Diode
FET
V
F
I
R
I
LOFF
C
OUT
I
Fon
R
on1
R
on2
t
ON
t
OFF
R
I-O
C
I-O
I
LMT
Coupled
Isolation Resistance, V
I-O
= 1.0 kV
DC
Isolation Capacitance, V = 0 V, f = 1 MHz
Limit Current, I
F
= 10 mA, V
L
= 6 V, t = 5 ms
Note:
1. Test Circuit for Switching Time
I
F
Pulse Input
V
L
Input
50%
0
PS7241C-1A
4
3
Input Monitor
R
in
R
L
V
O
Monitor
V
O
= 5 V
Output
90%
10%
t
on
t
off
1
2
California Eastern Laboratories
1
2
