FOD2741BSD Fairchild Semiconductor, FOD2741BSD Datasheet - Page 3

• Manufacturer Part Number: FOD2741BSD
• Description: ISOLATED ERROR AMPLIFIER
• Manufacturer: Fairchild Semiconductor

Specifications of FOD2741BSD

• No. Of Channels: 1
• Isolation Voltage: 5kV
• Input Current: 10mA
• Output Voltage: 70V
• Opto Case Style: SMD
• No. Of Pins: 8
• Svhc: No SVHC (15-Dec-2010)
• Approval Bodies: BSI, CSA, VDE
• Approval Category: UL
• Optocoupler Output Type: Phototransistor
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

© 2003 Fairchild Semiconductor Corporation
FOD2741A
1. The deviation parameters V
2. The dynamic impedance is defined as |Z
ELECTRICAL CHARACTERISTICS
INPUT CHARACTERISTICS
Parameter
LED Forward Voltage
Reference Voltage
Deviation of V
temperature
Ratio of V
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)
Z
∆V
obtained over the rated temperature range. The average full-range temperature coefficient of the reference input voltage, ∆ V
is defined as:
where ∆ T
Figure 2), the total dynamic impedance of the circuit is given by:
OUT, TOT
REF
(
REF
ppm/°C
A
=
is the rated operating free-air temperature range of the device.
REF
REF
variation to the
∆V
------- -
∆I
over
)
≈
over
=
Z
OUT
{
---------------------------------------------------------------------------------------------------- -
V
REF DEV
×
(
REF(DEV)
1
+
)
R1
------- -
R2
/V
I
LED
REF
V
(I
and I
COMP
∆T
LED
= 10 mA
(
T
A
OUT
A
I
REF(DEV)
LED
= 10 mA, V
=
= V
| = ∆ V
I
V
LED
25°C
= 10mA, R
LED
REF
(T
= 10 mA, V
∆ V
FOD2741B
, I
A
∆ V
)
COMP
= 37V, V
are defined as the differences between the maximum and minimum values
} 10
LED
T
T
= 25°C Unless otherwise specified.)
COMP
V
A
COMP
A
×
COMP
COMP
= -25°C to +85°C V
= -25°C to +85°C
Test Conditions
Page 3 of 15
/ ∆ I
= 1mA to 20mA,
1
6
= 10V to V
= 10k Ω (fig 3)
LED
FB
= 36V to 10V
= V
= V
COMP
f ≥ 1.0 kHz
. When the device is operating with two external resistors (see
= 0 (fig 4.)
FB
FB
) (fig.1)
(fig.1)
= V
REF
FB
I
I
REF (DEV)
Symbol
∆ V
LED (MIN)
REF (DEV)
∆ V
|Z
I
V
OPTICALLY ISOLATED
I
(OFF)
REF
V
COMP
OUT
REF
REF
F
|
/
ERROR AMPLIFIER
Device
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
C
A
B
2.482 2.495 2.508
2.470 2.495 2.520
2.450 2.500 2.550
Min.
FOD2741C
0.45
0.05
0.15
Typ.
-1.0
-0.5
4.5
1.5
0.4
Max.
-2.7
-2.0
1.5
1.2
1.0
1.0
0.5
17
4
12/9/04
Unit
mV/
mV
mA
µA
µA
µA
REF
Ω
V
V
V
V
V
,