ACPL-332J-000E Datasheet, PDF (22/23 Pages) AVAGO TECHNOLOGIES LIMITED – 2.5 Amp Output Current IGBT Gate Driver Optocoupler with Integrated (VCE) Desaturation Detection, UVLO Fault Status Feedback and Active Miller Clamping

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.
Other Possible Application Circuit (Output Stage)
1 V_S
2 V_CC1
3 FAULT
4 V_S
5 CATHODE
6 ANODE
7 ANODE
8 CATHODE
V_E 16
V_LED 15
DESAT 14
0.1μF 0.1μF
V_CC2 13
V_EE 12
V_OUT 11
V_CLAMP ¹⁰
0.1μF
Optional R₁
V_EE 9
Optional R₂
R_G
+_
Q1
R_PULL-DOWN
+_ *
Q2
+ HVDC
+
V_CE
-
3-PHASE
AC
+
V_CE
-
- HVDC
Figure 40. IGBT drive with negative gate drive, external booster and desaturation detection (V_CLAMP should be connected to V_EE when it is not used)
VCLAMP is used as secondary gate discharge path. * indicates component required for negative gate drive topology
1 V_S
2 V_CC1
3 FAULT
4 V_S
5 CATHODE
6 ANODE
7 ANODE
8 CATHODE
V_E 16
V_LED 15
DESAT 14
0.1μF 0.1μF
V_CC2 13
V_EE 12
V_OUT 11
V_CLAMP ¹⁰
0.1μF
Optional R₁
V_EE 9
Optional R₂
R_G
+_
Q1
R_PULL-DOWN
+_ ^*
Q2
R₃
+ HVDC
+
V_CE
-
3-PHASE
AC
+
V_CE
-
- HVDC
Figure 41. Large IGBT drive with negative gate drive, external booster. V_CLAMP control secondary discharge path for higher power application.
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