Datasheet

16
Figure 26a. HCPL-3150 Typical Application Circuit with Negative IGBT Gate Drive.
P
O
Parameter Description
I
CC
Supply Current
V
CC
Positive Supply Voltage
V
EE
Negative Supply Voltage
E
SW
(Rg,Qg) Energy Dissipated in the HCPL-3150/315J for
each IGBT Switching Cycle (See Figure 27)
f Switching Frequency
P
E
Parameter Description
I
F
LED Current
V
F
LED On Voltage
Duty Cycle Maximum LED
Duty Cycle
+ HVDC
3-PHASE
AC
- HVDC
HCPL-3150 fig 26
0.1 µF
V
CC
= 15 V
1
3
+
–
2
4
8
6
7
5
HCPL-3150
Rg
Q1
Q2
V
EE
= -5 V
–
+
270 Ω
+5 V
CONTROL
INPUT
74XXX
OPEN
COLLECTOR
Figure 26b. HCPL-315J Typical Application Circuit with Negative IGBT Gate Drive.
+ HVDC
3-PHASE
AC
0.1 µF
FLOATING
SUPPLY
V
CC
= 15 V
1
3
–
2
16
14
15
270 Ω
HCPL-315J
+5 V
CONTROL
INPUT
Rg
74XX
OPEN
COLLECTOR
GND 1
7
6
8
10
11
9
- HVDC
0.1 µF
V
CC
= 15 V
Rg
270 Ω
+5 V
CONTROL
INPUT
74XX
OPEN
COLLECTOR
GND 1
HCPL-3150 fig 26b
–
+
–
+
––
+
–
+
V
CC
= -5 V
V
EE
= -5 V