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STSPIN32G4 датащи(PDF) 18 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) 18 Page - STMicroelectronics

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Four configurations are possible for the 3.3 V supply:
1.
Internally generated via LDO with REGIN pin connected directly to the buck output VCC (Figure 9).
2.
Internally generated via LDO with REGIN pin connected through a resistor to the buck output VCC
(Figure 10); with this configuration the power dissipation inside the device can be reduced.
3.
Internally generated via LDO with REGIN pin connected to an external supply voltage in the range 15 V to
3.3 V (Figure 11).
4.
Externally, provided with REGIN and REG3V3 connected (Figure 12). In this case it is possible to disconnect
or tie to ground VM or VCC while providing the 3.3 V supply. When VM is provided again the device restarts
from a power-up condition.
Figure 9. 3.3 V LDO regulator supplied through VCC
+
Buck
reg.
3.3 V
LDO
D1
VM
CM
COUT
CDD
L
Figure 10. 3.3 V LDO regulator supplied through VCC (external resistor)
+
Buck
reg.
3.3 V
LDO
R
D1
VM
CM
COUT
CDD
CREGIN
L
Figure 11. 3.3 V LDO regulator with external supply
+
Buck
reg.
3.3 V
LDO
(3.3 V to 15 V)
+
D1
VM
CM
COUT
CDD
VREGIN
L
CREGIN
STSPIN32G4
Power management section
DS13630 - Rev 1
page 18/48



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