IRAMX30TP60A
www.irf.com 9
Typical Application Connection IRAMX30TP60A
3-Phase AC
MOTOR
BOOT-STRAP
CAPACITORS
W
V
U
CONTROLLER
V+
DC BUS
CAPACITORS
PHASE LEG
CURRENT
SENSE
O/C
SENSE
(ACTIVE LOW)
CURRENT SENSING CAN USE A
SINGLE SENSE RESISTOR OR PHASE
LEG SENSING AS SHOWN
Cb
V
B3
V
B2
V
B
1
V
S3
V
S3
V
S1
PGND
V
cc
(15 V)
I
TRIP
V
SS
L
E1
L
E2
L
E3
H
IN1
H
IN2
H
IN3
L
IN
1
L
IN2
L
IN3
TEMP
SENSE
O/C
SENSE
(ACTIVE LOW)
DGND
23
IRAMX30TP60A
1
P 9DF00
1. Electrolytic bus capacitors should be mounted as close to the module bus terminals as possible to reduce
ringing and EMI problems. Additional high frequency ceramic capacitor mounted close to the module pins
will further improve performance.
2. In order to provide good decoupling between VCC-VSS and VB1,2,3-VS1,2,3 terminals, the capacitors
shown connected between these terminals should be located very close to the module pins. Additional high
frequency capacitors, typically 0.1μF, are strongly recommended.
3. Value of the boot-strap capacitors depends upon the switching frequency. Their selection should be made
based on IR design tip DT04-4, application note AN-1044 or Figure 10. Bootstrap capacitor value must be
selected to limit the power dissipation of the internal resistor in series with the VCC. (see maximum ratings
Table on page 3).
4. After approx. 8ms the FAULT is reset. (see Dynamic Characteristics Table on page 5).
5. PWM generator must be disabled within Fault duration to guarantee shutdown of the system, overcurrent
condition must be cleared before resuming operation.
