UM0969 datasheet(17/46 Pages) STMICROELECTRONICS

Part #	UM0969

Description	3-phase motor control demonstration board featuring IGBT intelligent power module STGIPS10K60A

PDF	46 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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17 / 46 page

UM0969

Board description

Doc ID 17665 Rev 2

17/46

The STEVAL-IHM027V1 includes a hardware OT protection that stops the PWM signal path

from the MCU to STGIPS10K60A logic input once the maximum allowable temperature is

passed. With the chosen value, the OT protection limit is set to 70 °C. Another suggested

scheme, generally adopted for temperature monitoring and protection, is shown in Figure 8.

The NTC voltage is directly monitored by the MCU and an additional comparator

enables/disables the board, according to the temperature thresholds.

Figure 8.

OT protection circuit

Table 2.

Internal IPM NTC details (see relevant section on the STGIPS10K60A

datasheet)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

R25

Resistance

TC = 25 °C

R125

Resistance

TC = 125 °C

300

B-constant

TC = 25 °C

3435

Operating temperature

-40

125

°C

Max. rating power (max power on free air)

400

UM0969 Datasheet(PDF) 17 Page - STMicroelectronics