HCPL-3150#500 Avago Technologies US Inc., HCPL-3150#500 Datasheet - Page 19
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HCPL-3150#500
Manufacturer Part Number
HCPL-3150#500
Description
OPTOCOUPLER 1CH 0.6A 8-SMD
Manufacturer
Avago Technologies US Inc.
Datasheet
1.HCPL-3150.pdf
(21 pages)
Specifications of HCPL-3150#500
Output Type
Open Collector
Package / Case
8-SMD Gull Wing
Voltage - Isolation
3750Vrms
Number Of Channels
1, Unidirectional
Current - Output / Channel
600mA
Propagation Delay High - Low @ If
300ns @ 7mA ~ 16mA
Current - Dc Forward (if)
25mA
Input Type
DC
Mounting Type
Surface Mount, Gull Wing
Configuration
1 Channel
Isolation Voltage
3750 Vrms
Maximum Propagation Delay Time
500 ns
Maximum Forward Diode Voltage
1.8 V
Minimum Forward Diode Voltage
1.2 V
Maximum Reverse Diode Voltage
5 V
Maximum Forward Diode Current
16 mA
Maximum Power Dissipation
295 mW
Maximum Operating Temperature
+ 100 C
Minimum Operating Temperature
- 40 C
Number Of Elements
1
Forward Voltage
1.8V
Forward Current
25mA
Package Type
PDIP SMD
Operating Temp Range
-40C to 100C
Power Dissipation
295mW
Propagation Delay Time
500ns
Pin Count
8
Mounting
Surface Mount
Reverse Breakdown Voltage
5V
Operating Temperature Classification
Industrial
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
Available stocks
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IPM Dead Time and Propagation Delay Specifications
The HCPL-3150/315J includes a Propagation Delay Dif-
ference (PDD) specification intended to help designers
minimize “dead time” in their power inverter designs.
Dead time is the time period during which both the high
and low side power transistors (Q1 and Q2 in Figure 25)
are off. Any overlap in Q1 and Q2 conduction will result
in large currents flowing through the power devices
from the high- to the low-voltage motor rails.
To minimize dead time in a given design, the turn on of
LED2 should be delayed (relative to the turn off of LED1)
so that under worst-case conditions, transistor Q1 has
just turned off when transistor Q2 turns on, as shown in
Figure 34. The amount of delay necessary to achieve this
condi tions is equal to the maximum value of the propa-
gation delay difference specification, PDD
specified to be 350 ns over the operating temperature
range of -40°C to 100°C.
Figure 29. Optocoupler Input to Output Capacitance Model for
Unshielded Optocouplers.
19
Figure 31. Equivalent Circuit for Figure 25 During Common Mode Transient.
+5 V
1
2
3
4
C
C
LEDP
LEDN
V
+
–
SAT
* THE ARROWS INDICATE THE DIRECTION
OF CURRENT FLOW DURING –dV
1
2
3
4
C
C
I
LEDP
LEDP
LEDN
SHIELD
8
7
6
5
V
+
CM
–
CM
/dt.
8
7
6
5
MAX
, which is
0.1
μF
+
–
Rg
V
Delaying the LED signal by the maximum propaga-
tion delay difference ensures that the minimum dead
time is zero, but it does not tell a designer what the
maximum dead time will be. The maximum dead
time is equivalent to the difference between the
maximum and minimum propa ga tion delay differ-
ence specifica tions as shown in Figure 35. The maxi-
mum dead time for the HCPL-3150/315J is 700 ns
(= 350 ns - (-350 ns)) over an operating temperature
range of -40°C to 100°C.
Note that the propagation delays used to calculate PDD
and dead time are taken at equal tempera tures and test
conditions since the optocouplers under consider ation
are typically mounted in close proximity to each other
and are switching identical IGBTs.
Figure 30. Optocoupler Input to Output Capacitance Model for
Shielded Optocouplers.
CC
1
2
3
4
= 18 V
• • •
• • •
C
C
LEDP
LEDN
C
SHIELD
LEDO1
C
LEDO2
8
7
6
5