ACPL-34JT Datasheet, PDF (3/16 Pages) AVAGO TECHNOLOGIES LIMITED – 1.9 A Miller Clamp Sinking Current

Product Overview Description
The ACPL-34JT (shown in Figure 1) is a highly integrated power control device that incorporates all the necessary com-
ponents for a complete, isolated IGBT gate drive circuit. It features IGBT desaturation sensing with soft-shutdown pro-
tection and fault feedback, under voltage lockout and feedback and active Miller current clamping in a SO-16 package.
Direct LED input allows flexible logic configuration and differential current mode driving with low input impedance,
greatly increased its noise immunity.
Package Pin Out
1 VEE1
2 VEE1
3 VCC1
4 VEE1
5 _UVLO
6 _FAULT
7 AN
8 CA
VEE2 16
LED2+ 15
DESAT ₁₄
VE 13
VCC2 12
VO 11
SSD/CLAMP ¹⁰
VEE2 9
Figure 2. Pin out of ACPL-34JT
Pin Description
Pin Name
VEE1
VEE1
VCC1
VEE1
UVLO
FAULT
AN
CA
Function
Input common
Input common
Input power supply
Input common
VCC2 under voltage lock out feedback
Over current fault feedback
Input LED anode
Input LED cathode
Pin Name
VEE2
LED2+
DESAT
VE
VCC2
VO
SSD/CLAMP
VEE2
Function
Negative power supply
No connection, for testing only
Desat Over current sensing
IGBT Emitter Reference
Positive power supply
Driver output to IGBT gate
Soft Shutdown / Miller current clamping output
Negative Power Supply
3