Datasheet
©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
FODMXXX Rev. 1.1.4 3
FODM121 Series, FODM124, FODM2701, FODM2705 — 4-Pin Full Pitch Mini-Flat Package Transistor Output Optocouplers
Electrical Characteristics
(Continued)
(T
A
= 25°C)
Transfer Characteristics
Isolation Characteristics
*All typicals at T
A
= 25°C
Note:
1. Steady state isolation voltage, V
ISO
, is an internal device dielectric breakdown rating. For this test, pins 1 and 2 are
common, and pins 3 and 4 are common.
Symbol Characteristic Test Conditions Device Min. Typ.* Max. Unit
CTR DC Current Transfer Ratio I
F
= ±5mA, V
CE
= 5V FODM2705 50 300 %
I
F
= 5mA, V
CE
= 5V FODM2701 50 300
I
F
= 5mA, V
CE
= 5V FODM121 50 600
FODM121A 100 300
FODM121B 50 150
FODM121C 100 200
I
F
= 1mA, V
CE
= 0.5V FODM124 100 1200
I
F
= 0.5mA, V
CE
= 1.5V 50
CTR Symmetry I
F
= ±5mA, V
CE
= 5V FODM2705 0.3 3.0
V
CE (SAT)
Saturation Voltage I
F
= ±10mA, I
C
= 2mA FODM2705 0.3 V
I
F
= 10mA, I
C
= 2mA FODM2701 0.3
I
F
= 8mA, I
C
= 2.4mA FODM121
Series
0.4
I
F
= 1mA, I
C
= 0.5mA FODM124 0.4
t
r
Rise Time (Non-Saturated) I
C
= 2mA, V
CE
= 5V,
R
L
= 100
Ω
All 3 µs
t
f
Fall Time (Non-Saturated) I
C
= 2mA, V
CE
= 5V,
R
L
= 100
Ω
All 3 µs
Characteristic Test Conditions Symbol Device Min. Typ.* Max. Unit
Steady State Isolation Voltage
(1)
1 Minute V
ISO
All 3750 VRMS