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BD63731EFV Datasheet(Fiches technique) 21 Page - Rohm

Numéro de pièce BD63731EFV
Description  36 V High-performance, High-reliability Withstand Voltage Stepping Motor Driver
Télécharger  31 Pages
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Fabricant  ROHM [Rohm]
Site Internet  http://www.rohm.com
Logo ROHM - Rohm

BD63731EFV Datasheet(HTML) 21 Page - Rohm

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BD63731EFV
TSZ02201-0P1P0C702140-1-2
© 2019 ROHM Co., Ltd. All rights reserved.
21.Jun.2019 Rev.001
www.rohm.com
TSZ22111
• 15 • 001
TEST pin
IDIODE
Internal Circuit
VF
-VF[mV]
25
150 Chip Temperature Tj[°C]
Power Dissipation - continued
2
Temperature Monitoring
In respect of BD63731EFV, there is a way to directly measure the approximate chip temperature by using the TEST
pin with a protection diode for prevention from electrostatic discharge. However, temperature monitor way is used only
for evaluation and experimenting, and must not be used in actual usage conditions.
Process 1 Measure the pin voltage when a current of IDIODE=50 μA flows from the TEST pin to the GND,
without supplying VCC to the IC. This measurement is for measuring the VF voltage of the internal diode.
Process 2 Measure the temperature characteristics of this pin voltage. (VF has a linear negative temperature factor
against the temperature.) With the results of these temperature characteristics, chip temperature can be
calibrated from the TEST pin voltage.
Process 3 Supply VCC, confirm the TEST pin voltage while running the motor, and the chip temperature can be
approximated from the results of Process 2.
Figure 6. Model diagram for measuring chip temperature


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