FOD2742B Fairchild Semiconductor, FOD2742B Datasheet - Page 4

• Manufacturer Part Number: FOD2742B
• Description: Transistor Output Optocouplers Error amplifier Optocoupler
• Manufacturer: Fairchild Semiconductor

Specifications of FOD2742B

• Maximum Input Diode Current: 20 mA
• Output Device: Transistor
• Output Type: DC
• Configuration: 1
• Input Type: DC
• Maximum Collector Emitter Voltage: 70 V
• Maximum Collector Emitter Saturation Voltage: 400 mV
• Isolation Voltage: 2500 Vrms
• Current Transfer Ratio: 200 %
• Maximum Forward Diode Voltage: 1.5 V
• Maximum Collector Current: 50 mA
• Maximum Power Dissipation: 145 mW
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Package / Case: SOIC-8 Narrow
• No. Of Channels: 1
• Optocoupler Output Type: Phototransistor
• Input Current: 10mA
• Output Voltage: 70V
• Opto Case Style: SOIC
• No. Of Pins: 8
• Svhc: No SVHC (15-Dec-2010)
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: FOD2742B_NL

©2003 Fairchild Semiconductor Corporation
FOD2742A, FOD2742B, FOD2742C Rev. 1.0.1
Electrical Characteristics
Input Characteristics
Notes:
1. The deviation parameters V
2. The dynamic impedance is defined as |Z
V
Symbol
I
I
REF (DEV)
LED (MIN)
REF (DEV)
minimum values obtained over the rated temperature range. The average full-range temperature coefficient of the
reference input voltage, V
resistors (see Figure 2), the total dynamic impedance of the circuit is given by:
|Z
where T
Z
V
I
V
I
(OFF)
REF
V
V
OUT, TOT
COMP
OUT
REF
V
F
RE
REF
|
ppm/°C
LED Forward Voltage
Reference Voltage
Deviation of V
Temperature
Ratio of V
the Output of the Error
Amplifier
Feedback Input Current
Deviation of I
Temperature
Minimum Drive Current
Off-state Error Amplifier
Current
Error Amplifier Output
Impedance (see note 2)
A
=
is the rated operating free-air temperature range of the device.
------- -
V
I
Parameter
=
REF
Z
OUT
---------------------------------------------------------------------------------------------------- -
REF
V
REF
Variation to
REF DEV
Over
Over
REF
REF(DEV)
1
+
, is defined as:
R1
------- -
R2
/V
(T
A
REF
and I
I
I
T
I
(Fig. 2)
I
T
V
V
V
f
= 25°C unless otherwise specified)
LED
LED
LED
LED
A
A
COMP
LED
COMP
T
= -25°C to +85°C (Fig. 1)
= -25°C to +85°C (Fig. 3)
1.0kHz
OUT
T
A
REF(DEV)
= 10mA, V
= 10mA, V
= 10mA
= 10mA, R
A
= 37V, V
=
| = V
= V
= V
25°C
Test Conditions
FB
REF
COMP
(Fig. 1)
FB
, I
are defined as the differences between the maximum and
COMP
COMP
1
LED
V
V
= 0 (Fig. 4)
= 10K
COMP
COMP
4
/ I
10
= 1mA to 20mA,
= V
= V
LED
6
= 10V to V
= 36V to 10V
FB
FB
(Fig. 3)
. When the device is operating with two external
(Fig. 1)
(Fig. 1)
REF
Device Min.
All
All
All
All
All
All
All
All
C
A
B
2.482
2.470
2.450
2.495
2.495
2.500
Typ. Max. Unit
1.20
0.45
0.01
0.15
-0.5
-0.3
3.5
2.2
1.0
www.fairchildsemi.com
2.508
2.520
2.550
-2.7
-2.0
1.5
1.2
1.0
1.0
0.5
17
4
mV/
mV
mA
µA
µA
µA
V
V
V
V
V