STK581U3C2D-E
www.onsemi.com
10
Recommended Operating Conditions
at Tc = 25C
Item Symbol Conditions min typ max Unit
Supply voltage V
CC
P to N 0 280 450 V
Pre-driver
supply voltage
VD1, 2, 3 VB1 to U, VB2 to V, VB3 to W 12.5 15 17.5
V
VD4 V
DD
to V
SS
*1 13.5 15 16.5
ON-state input voltage V
IN
(ON)
HIN1, HIN2, HIN3,
LIN1, LIN2, LIN3
3.0 - 5.0
V
OFF-state input voltage V
IN
(OFF) 0 - 0.3
PWM frequency fPWM 1 - 20 kHz
Dead time DT Turn-off to turn-on 2 - - s
Allowable input pulse width PWIN ON and OFF 1 - - s
Tightening torque ‘M4’ type screw 0.79 - 1.17 Nm
*1 Pre-drive power supply (VD4 = 15 ±1.5 V) must have the capacity of Io = 20 mA (DC), 0.5 A (Peak).
Usage Precautions
1. This IPM includes bootstrap diode and resistors. Therefore, by adding a capacitor “CB”, a high side drive voltage is
generated; each phase requires an individual bootstrap capacitor. The recommended value of CB is in the range of 1 to 47 μF,
however this value needs to be verified prior to production. If selecting the capacitance more than 47 μF (±20%), connect a
resistor (about 20 Ω) in series between each 3-phase upper side power supply terminals (VB1, 2, 3) and each bootstrap
capacitor.
When not using the bootstrap circuit, each upper side pre-drive power supply requires an external independent power supply.
2. It is essential that wirning length between terminals in the snubber circuit be kept as short as possible to reduce the effect of
surge voltages. Recommended value of “CS” is in the range of 0.1 to 10 μF.
3. “ISO” (pin20) is terminal for current monitor. When the pull-down resistor is used, please select it more than 5.6 kΩ
4. “FAULT” (pin19) is open DRAIN output terminal (Active Low). Pull up resistor is recommended more than 5.6 kΩ.
5. Inside the IPM, a thermistor used as the temperature monitor for internal subatrate is connected between V
SS
terminal and
TH terminal, therefore, an external pull up resistor connected between the TH terminal and an external power supply should
be used. The temperature monitor example application is as follows, please refer the Fig.10, and Fig.11 below.
6. Pull down resistor of 33 kΩ is provided internally at the signal input terminals. An external resistor of 2.2 k to 3.3 kΩ should
be added to reduce the influence of external wiring noise.
7. The over-current protection feature is not intended to protect in exceptional fault condition. An external fuse is recommended
for safety.
8. When input pulse width is less than 1.0 μs, an output may not react to the pulse. (Both ON signal and OFF signal)
This data shows the example of the application circuit, does not guarantee a design as the mass production set.
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended
Operating Ranges limits may affect device reliability.
