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STSPIN32G4 датащи(PDF) 16 Page - STMicroelectronics

номер детали STSPIN32G4
подробное описание детали  High performance 3-phase motor controller with embedded STM32G4 MCU
PDF  48 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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STSPIN32G4 датащи(HTML) 16 Page - STMicroelectronics

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Figure 5. VCC Buck configuration
+
L
Buck
reg.
D1
COUT
CM
VM
The output voltage can be set to different values as listed in Table 8 . The regulator works with a fixed switching
frequency of fSW,Buck and a maximum duty cycle of 90%.
A soft-start is implemented on system power-up or wake-up: the output target voltage is gradually increased up to
the target VCC in tSS,Buck time (refer to Figure 6). During the first half of tSS,Buck time the regulator works with a
fixed switching frequency of fSW,SS.
When the target output voltage is changed, a new soft-start ramp is generated with the new target voltage as final
value.
Table 8. VCC Buck regulator output voltage
VCC_VAL
VCC regulated value [V]
Note
00
8
default
01
10
10
12
11
15
Figure 6. VCC buck regulator soft-start
7/32 x VCC,mean
VCC,mean = 15 V
VCC,mean = 8 V
new VCC,mean value
7/32 x VCC,mean
tSS,Buck
tSS,Buck
It is possible to provide externally the VCC supply, bypassing the integrated regulator.
STSPIN32G4
Power management section
DS13630 - Rev 1
page 16/48



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