FODM3010 Datasheet, PDF (5/10 Pages) Fairchild Semiconductor – 4-PIN FULL PITCH MINI-FLAT PACKAGE RANDOM-PHASE TRIAC DRIVER OUTPUT OPTOCOUPLERS

4-PIN FULL PITCH MINI-FLAT PACKAGE
RANDOM-PHASE TRIAC DRIVER
OUTPUT OPTOCOUPLERS
FODM3010 FODM3011 FODM3012 FODM3021
FODM3022
FODM3023
TYPICAL PERFORMANCE CURVES
400V (FODM302X)
250V (FODM301X)
Vdc
PULSE
INPUT
R_TEST
MERCURY
WETTED
RELAY
C_TEST
R = 10 kΩ
D.U.T.
X100
SCOPE
PROBE
1. The mercury wetted relay provides a high speed repeated
pulse to the D.U.T.
2. 100x scope probes are used, to allow high speeds and
voltages.
3. The worst-case condition for static dv/dt is established by
triggering the D.U.T. with a normal LED input current, then
removing the current. The variable R_TEST allows the dv/dt to
be gradually increased until the D.U.T. continues to trigger in
response to the applied voltage pulse, even after the LED
current has been removed. The dv/dt is then decreased until
the D.U.T. stops triggering. τ_RC is measured at this point and
recorded.
APPLIED VOLTAGE
WAVEFORM
252 V (FODM302X)
158 V (FODM301X)
0 VOLTS
τ_RC
V_max = 400 V (FODM302X)
= 250 V (FODM301X)
dv/dt =
0.63 Vmax
τ_RC
=
252
τ_RC ^(FODM302X)
=
158
τ_RC ^(FODM301X)
Figure 8. Static dv/dt Test Circuit
NOTE: This optoisolator should not be used to drive a load directly. It is
intended to be a trigger device only.
R_L
V_CC
R_in
1
4
180
FODM3010
FODM3011
FODM3012
2
3
Figure 9. Resistive Load
120 V
60 Hz
Z_L
V_CC
R_in
1
4
180
2.4k
MOC3010
MOC3011
MOC3012
2
3
0.1 µF C1
120 V
60 Hz
Figure 10. Inductive Load with Sensitive Gate Triac (I_GT ≤ 15 mA)
© 2003 Fairchild Semiconductor Corporation
Page 5 of 10
11/10/03