SPM6G120-120D Datasheet, PDF (11/17 Pages) Sensitron – Three-Phase IGBT BRIDGE With Gate Driver and Optical Isolation

SENSITRON
TECHNICAL DATA
Data Sheet 4100 Rev. -
SPM6G120-120D
IAd ( Pin 21 ), is a +2.5V DC offset used for differential output reading of IAo.
IAo ( Pin 22 ), is phase A hall current sensor output. The output can be measured between Pin22 and
Pin 21 differentially. Zero current corresponds to zero output, current entering Phase A pins will produce
positive output voltage at Pin22, and current out of Phase A pins will produce negative output voltage at
Pin22.
Also, the output can be measured as single ended between Pin22 and Pin24. In this case zero current
will correspond to 2.5V output, current entering Phase A pins will produce positive output voltage above
2.5V, and current out of Phase A pins will produce positive output voltage below 2.5V.
The sensitivity of this sensor is 0.015V/A.
TCo ( Pin 23 ), is an analog output of case temperature sensor. The sensor output gain is 6.25mV/^oC, with
424 mV DC offset. This sensor can measure both positive and negative ^oC. The internal impedance of this
output is 2.74KΩ.
The internal block diagram of the temperature sensor is shown in Fig. 7.
2.74KΩ
Vo= (+6.25mV/^oC )*T^oC + 424 mV
10nF
Pin 23
Pin 24
Gnd2
Fig. 7 Temperature Sensor Internal Block Diagram
The output voltage reading vs temperature will be:
TCo = + 0.58V at Tc= +25^oC
TCo = + 1.205V at Tc= +125^oC
TCo = + 0.174V at Tc= -40^oC
+5V-in Rtn ( Pin 24 ), is signal ground, Gnd2. This pin is internally floating for flexibility. The phase current
sensors and temperature sensor are referenced to Gnd2.
Gnd2 isolation from Gnd1 is over 1500V.
VDD, +5V-in ( Pin 25 ), is the +5V input biasing supply connection for the phase current sensors and
temperature sensor. Pin 25 should be connected to an isolated 5V power supply, recommended limits
are 4.75V to 5.25V. The return of this input is pin 24.
Recommended power supply capability for VDD is about 50mA.
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