ACPL-K342-000E Avago Technologies US Inc., ACPL-K342-000E Datasheet - Page 16

• Manufacturer Part Number: ACPL-K342-000E
• Description: ISOLATOR 5KVRMS 1CH GATE 8SOIC
• Manufacturer: Avago Technologies US Inc.
• Type: Gate Driver, Miller Clampr

Specifications of ACPL-K342-000E

• Package / Case: 8-SOIC (0.268", 6.81mm Width)
• Voltage - Isolation: 5000Vrms
• Input Type: DC
• Voltage - Supply: 15 V ~ 30 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Fall Time: 18 ns
• Rise Time: 22 ns
• Maximum Propagation Delay Time: 0.35 us
• Maximum Forward Diode Voltage: 1.95 V
• Minimum Forward Diode Voltage: 1.2 V
• Maximum Reverse Diode Voltage: 5 V
• Maximum Continuous Output Current: 2.5 A
• Maximum Power Dissipation: 255 mW
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Elements: 1
• Output Type: Push-Pull
• Forward Voltage: 1.95V
• Isolation Voltage: 5000Vrms
• Operating Temp Range: -40C to 105C
• Power Dissipation: 255mW
• Propagation Delay Time: 350ns
• Pin Count: 8
• Mounting: Surface Mount
• Reverse Breakdown Voltage: 5V
• Operating Temperature Classification: Industrial
• No. Of Channels: 1
• Optocoupler Output Type: Gate Drive
• Input Current: 230mA
• Output Voltage: 30V
• Opto Case Style: SOIC
• No. Of Pins: 8
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• Leaded Process Compatible: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 516-2159-5; ACPL-K342

Rg ≥
Selecting the Gate Resistor (Rg)
Step 1:
RC circuit with a voltage supplied by ACPL-H342/K342.
The V
Step 1:
sipation (P
P
P
P
Using I
P
P
The value of 2.5mA for I
Since P
Figure 36. Energy Dissipated in the ACPL-H342/K342 for each IGBT switching cycle.
16
T
E
O
E
O
=
= 6.28: | 7:
= P
= I
= P
= I
= 16mA • 1.95V • 0.8 = 32mW
= 2.5mA • 18V + 4μJ • 25 kHz
= 45mW + 100mW
= 145mW < 210mW (P
8
7
6
5
4
3
2
1
0
18V  0V  2.3V
0
V
OL
F
CC
E
O(BIAS)
CC
Check the ACPL-H342/K342 power dissipation and increase Rg if necessary. The ACPL-H342/K342 total power dis-
Calculate Rg minimum from the IOL peak specification. The IGBT and Rg in Figure 33 can be analyzed as a simple
F
• V
O
+ P
(worst case) = 16mA, Rg = 7:, Max Duty Cycle = 80%, Qg = 500nC, f = 25kHz and T
value of 2.3V in the previous equation is the V
• (V
is less than P
I
 V
F
OLPEAK
2.5A
T
O
• Duty Cycle
) is equal to the sum of the emitter power (P
CC
EE
+ P
-V
10
 V
EE
O(SWITCHING)
OL
) + E
Rg - GATE RESISTANCE - :
O(MAX)
SW
CC
20
(Rg;Qg) • f
O(MAX)
in the previous equation is the maximum I
, Rg = 7: is alright for the power dissipation.
@ 85°C)
30
Qg = 100nc
Qg = 500nc
Qg = 1000nc
40
50
OL
E
) and the output power (P
at the peak current of 2.5A (see Figure 7).
CC
over the entire operating temperature range.
O
).
A
max = 85°C: