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PS2845-4A Datasheet, PDF (4/11 Pages) California Eastern Labs – WORLDS SMALLEST CLASS, FOUR CHANNELS 12-PIN ULTRA SMALL SOP PHOTOCOUPLER
PS2845-4A
ELECTRICAL CHARACTERISTICS (TA = 25°C)
Parameter
Symbol
Conditions
Diode
Forward Voltage
VF
IF = ±1 mA
Terminal Capacitance
Ct V = 0 V, f = 1 MHz
Transistor Collector to Emitter Current
ICEO IF = 0 mA, VCE = 24 V
Coupled
Current Transfer Ratio (IC/IF)
Optical Leakage Current *1
(1 to 2-ch, 2 to 3-ch, 3 to 4-ch)
CTR
IL
IF = ±1 mA, VCE = 0.4 V
IF = 5 mA, VCE = 24 V
Collector Saturation Voltage VCE (sat) IF = ±1 mA, IC = 0.2 mA
Isolation Resistance
RI-O
VI-O = 1 kVDC
Isolation Capacitance
Turn-on Time *2
Turn-off Time *2
CI-O V = 0 V, f = 1 MHz
ton
VCC = 5 V, IF = ±1 mA, RL = 5 kΩ
toff
MIN. TYP. MAX. Unit
0.9
1.1
1.2
V
30
pF
100
nA
100
200
400
%
100
nA
0.13
0.3
V
1011
Ω
0.4
pF
20
µs
110
*1 The optically induced leakage current is current which can be measured at transistor if LED = ”ON” and LED =
”OFF”.
LED of channel 1 is switched to ”ON”.
At Tr-output of channel 2 a voltage is applied and one can measure a current between emitter and collector.
This is leakage current (at IF = 5 mA, VCEO = 24 V).
Measurement circuits for optical leakage current
E.g. : In the case of 1 to 2-ch
IF
1
12
2
11
3
10
A
4
9
IL
5
8
6
7
*2 Test circuit for switching time
Pulse Input
PW = 100 µs
Duty cycle = 1/10
In monitor
IF
50 Ω
VCC
RL = 5 kΩ
VOUT
4
Data Sheet PN10203EJ03V0DS