ACPL-331J-500E Avago Technologies US Inc., ACPL-331J-500E Datasheet - Page 21

• Manufacturer Part Number: ACPL-331J-500E
• Description: Amplifier-Output Optocoupler,2-CHANNEL,3.75kV ISOLATION,SO
• Manufacturer: Avago Technologies US Inc.

Specifications of ACPL-331J-500E

• Voltage - Isolation: 3750Vrms
• Number Of Channels: 2, Bi-Directional
• Current - Output / Channel: 1.5A
• Propagation Delay High - Low @ If: 180ns @ 10mA
• Current - Dc Forward (if): 12mA
• Input Type: DC
• Output Type: Gate Driver, Miller Clamp
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.300", 7.50mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Capacitor on FAULT Pin for High CMR
Rapid common mode transients can affect the fault pin
voltage while the fault output is in the high state. A 330
pF capacitor should be connected between the fault pin
and ground to achieve adequate CMOS noise margins at
the specified CMR value of 15 kV/μs. The added capaci-
tance does not increase the fault output delay when a
desaturation condition is detected.
Other Possible Application Circuit (Output Stage)
Figure 37. IGBT drive with negative gate drive, external booster and desaturation detection (V
used as secondary gate discharge path. * indicates component required for negative gate drive topology
Figure 38. Large IGBT drive with negative gate drive, external booster. V
21
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
V
V
FAULT
V
CATHODE
ANODE
ANODE
CATHODE
V
V
FAULT
V
CATHODE
ANODE
ANODE
CATHODE
S
CC1
S
S
CC1
S
DESAT
DESAT
V
V
CLAMP
CLAMP
V
V
V
V
V
V
V
V
V
V
OUT
OUT
LED
CC2
LED
CC2
V
V
EE
EE
EE
EE
E
E
16
15
14
13
12
11
10
16
15
14
13
12
11
10
9
9
9
Optional R
Optional R
0.1μF 0.1μF
0.1μF 0.1μF
0.1μF
0.1μF
1
1
Optional R
Optional R
CLAMP
2
2
control secondary discharge path for higher power application.
Pull-up Resistor on FAULT Pin
The FAULT pin is an open collector output and therefore
requires a pull-up resistor to provide a high-level signal.
Also the FAULT output can be wire ‘OR’ed together with
other types of protection (e.g. over-temperature, over-
voltage, over-current ) to alert the microcontroller.
R
R
R
R
3
3
PULL-DOWN
PULL-DOWN
R
R
R
R
G
G
G
G
CLAMP
+ _
+ _
should be connected to V
*
*
Q1
Q2
Q1
Q2
EE
when it is not used) V
V
V
V
V
+
+
+
+
-
-
-
-
CE
CE
CE
CE
3-PHASE
3-PHASE
+
+
-
-
HVDC
HVDC
HVDC
HVDC
AC
AC
CLAMP
is