PRELIMINARY

62EM1 - 62mm Electrical Master 1 Spec Sheet V09

Page 11 of 17

Temperature Monitor

The following table describes the correlation between the Thermistor Temperature and Temperature Monitor

PWM Output with 2kHz 4 pole filter. This is based on an NTC thermistor that measures 5kΩ @ 25°C.

Recommended Thermistor P/N: USUR1000-502G.

Output Voltage [V]

Temperature [°C]

0.8

-3

1.6

25

2.2

41

2.8

57

3.1

67

3.3

74

3.4

80

3.7

94

4.0

108

4.1

122

4.3

138

4.4

154

DC Link Voltage Monitor – 1200V

The DC Link (HI Side drain to LO Side source) Monitor Output Voltage is 1% accurate from 25V to 975V. The

PWM output is the ratio of the DC Link Voltage / 1000V. For example, a 500V DC Link Voltage, the PWM

output will be 50%. The linear equation for the Voltage Monitor PWM Output with a 2 kHz 4 pole filter is:

DC Link Voltage Monitor – 1700V

The DC Link (HI Side drain to LO Side source) Monitor Output Voltage is 1% accurate from 50V to 1650V.

The PWM output is the ratio of the DC Link Voltage / 1700V. For example, an 825V DC Link Voltage, the

PWM output will be 50%. The linear equation for the Voltage Monitor PWM Output with a 2 kHz 4 pole filter

is: