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STSPIN32G4TR データシート(PDF) 20 Page - STMicroelectronics

部品番号 STSPIN32G4TR
部品情報  High performance 3-phase motor controller with embedded STM32G4 MCU
PDF  48 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STSPIN32G4TR データシート(HTML) 20 Page - STMicroelectronics

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Figure 14. Gate driver block diagram
HS
LS
+
-
+
-
+
+
BOOTx
GHSx
OUTx
GLSx
SCREF
x3
To control
logic
VM
VCC
VDSth
VDSth
VBOOT1
VCC
A couple of digital inputs drive each half-bridge gate driver: one INLx signal for the low-side driving and one INHx
signal for the high-side driving. High input implies the gate driver turns on the respective external MOSFET, with
low value the gate driver turns it off.
5.2.1
Interlocking
The gate driver provides interlocking function, so the high-side and low-side MOSFETs of the same half-bridge
cannot be both on at the same time.
Table 9. Gate driver control logic with interlocking
INHx
INLx
High-side gate driver
Low-side gate driver
0
0
Sink current (Turn-off)
Sink current (Turn-off)
0
1
Sink current (Turn-off)
Source current (Turn-on)
1
0
Source current (Turn-on)
Sink current (Turn-off)
1
1
Sink current (Turn-off)
Sink current (Turn-off)
The interlocking function can be disabled setting the ILOCK bit. In this case both the high-side and low-side
MOSFETs can be turned on at the same time.
Table 10. Gate driver control logic without interlocking
INHx
INLx
High-side gate driver
Low-side gate driver
0
0
Sink current (Turn-off)
Sink current (Turn-off)
0
1
Sink current (Turn-off)
Source current (Turn-on)
1
0
Source current (Turn-on)
Sink current (Turn-off)
1
1
Source current (Turn-on)
Source current (Turn-on)
STSPIN32G4
Gate drivers
DS13630 - Rev 1
page 20/48



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