User Manual

CM50MXA-24S
NX-S Series CIB Module
(3Ø Converter + 3Ø Inverter + Brake)
50 Amperes/1200 Volts
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 [phone] www.pwrx.com
505/11 Rev. 2
Electrical Characteristics, T
j
= 25°C unless otherwise specied
Converter Part ConDi
Characteristics Symbol Test Conditions Min. Typ. Max. Units
Repetitive Peak Reverse Current I
RRM
V
R
= V
RRM
, T
j
= 150°C — — 6 mA
Forward Voltage V
F
(Terminal) I
F
= 50A
*5
— 1.2 1.6 Volts
NTC Thermistor Part
Characteristics Symbol Test Conditions Min. Typ. Max. Units
Zero Power Resistance R
25
T
C
= 25°C
*2
4.85 5.00 5.15 kΩ
Deviation of Resistance ∆R/R T
C
= 100°C
*2
, R
100
= 493Ω -7.3 — +7.8 %
B Constant B
(25/50)
Approximate by Equation
*6
— 3375 — K
Power Dissipation P
25
T
C
= 25°C
*2
— — 10 mW
*2 Case temperature (T
C
) and heatsink temperature (T
s
) is measured on the surface (mounting side) of the baseplate and the heatsink side just under the chips.
Refer to the figure on page 1 for chip location. The heatsink thermal resistance should be measured just under the chips.
*5 Pulse width and repetition rate should be such as to cause negligible temperature rise.
*6 B
(25/50)
= In(
R
25
)/(
1
–
1
)
R
50
T
25
T
50
R
25
; Resistance at Absolute Temperature T
25
[K]; T
25
= 25 [°C] + 273.15 = 298.15 [K]
R
50
; Resistance at Absolute Temperature T
50
[K]; T
50
= 50 [°C] + 273.15 = 323.15 [K]