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MT6M15962a
2. Control power supply
© Fuji Electric Co., Ltd. All rights reserved.
2.1 Voltage range
• The control power supply voltage including ripple shall not exceed the specification value.
6-3
Control power
supply voltage
(
V
CC
) [V]
IPM operation
Control power
supply under
voltage
protection (UV)
IPM
input
signal
voltage
IGBT
operation
0
≦
V
CC
≦
5.0
Control IC does not operate correctly and IGBT
gate signal is unstable.
In addition, IGBT is not turned on because
V
CC
is
lower than the gate threshold voltage
V
th
. The UV
protection does not work and no alarm signal is
output.
-
Hi
-
Lo
-
5.0<
V
CC
≦
11.0
Control IC operate. However, IGBT remains OFF
state because UV protection is activated. UV alarm
signal is output.
Activated
Hi
OFF
Lo
OFF
11.0<
V
CC
≦
12.5
(1) When UV protection is activated: the IGBT
remains OFF state and the alarm signal is output.
(2) When UV protection is not activated: The IGBT
operation follows the input signal, no alarm signal is
output.
(1) Activated
Hi
OFF
Lo
OFF
(2) Cancelled or
before action
Hi
OFF
Lo
ON
12.5<
V
CC
≦
13.5
UV protection is not activated. The IGBT operation
follows the input signal. Power dissipation tends to
increase and emission noise tends to decrease.
Cancelled
Hi
OFF
Lo
ON
13.5<
V
CC
≦
16.5
It is recommended voltage range. IGBT driving
circuit operates stably. The IGBT operation follows
the input signal.
Cancelled
Hi
OFF
Lo
ON
16.5<
V
CC
≦
20
UV protection is not activated. The IGBT operation
follows the input signal. Power dissipation tends to
decrease and emission noise tends to increase.
The short circuit current will increase due to shifts in
protection characteristics.
Cancelled
Hi
OFF
Lo
ON
V
CC
<0, 20<
V
CC
The use of
V
CC
<0V or >20V may cause malfunction
or damage to the device.
Never apply such voltage to the device.
-
-
-
-
-
1.2.2 Measures against internal noise from the IPM
• Outside of rectifier: Apply the same measures as in Section 1.2.1.
• Inside of rectifier: Add snubber capacitors or similar circuit to the P and N line.
1.2.3 Measures against noise from output terminals
• Apply measures outside of the module to prevent contactor switching surge or others from entering
the device.
Tabe.6-2 IPM operation by control power supply voltage value