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L99ASC03 Datasheet(PDF) 8 Page - STMicroelectronics

Part # L99ASC03
Description  Brushless / sensorless 3-phase motor pre-driver for automotive applications
PDF  73 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L99ASC03 Datasheet(HTML) 8 Page - STMicroelectronics

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Block diagram and pin descriptions
L99ASC03
8/73
DocID023504 Rev 7
12
SGND1
Signal ground 1
GND
13
SDI
SPI Serial data input
I
14
SCK
SPI clock input
I
15
SDO
SPI Serial data output
O
16
CSN
SPI Chip Select Not input
I
17
BC
Block Commutation Sync Pin
I
18
DIS
Disable input
I
19
NRES
NReset output
O
20
AOUT
Analog multiplexer output
O
21
BEMFOUT
Back EMF output
O
22
DOUT
Digital multiplexer output
O
23
NINT
Interrupt output
O
24
SGND3
Signal ground 3
GND
25
Reserved
Pin must be kept not connected
Not to be
connected
26
AGND
Analog ground
GND
27
VDD
Voltage regulator output
O
28
Reserved
Pin must be kept not connected
Not to be
connected
29
INH
Inhibit input (wake-up)
I
30
VSREG
Voltage regulator power supply
I
31
VS
Charge pump power supply
I
32
CP1-
Charge pump pin for capacitor 1, negative side
O
33
CP1+
Charge pump pin for capacitor 1, positive side
O
34
CP2-
Charge pump pin for capacitor 2, negative side
O
35
CP2+
Charge pump pin for capacitor 2, positive side
O
36
CP
Charge pump output
O
37
VSMS
Motor supply sense pin
I
38
GH1
Gate of external high-side MOSFET 1
O
39
SH1
Source of external high-side MOSFET 1
I/O
40
GL1
Gate of external low-side MOSFET 1
O
41
SL1
Source of external low-side MOSFET 1
I/O
42
GH2
Gate of external high-side MOSFET 2
O
43
SH2
Source of external high-side MOSFET 2
I/O
44
GL2
Gate of external low-side MOSFET 2
O
Table 2. Pin definition and function (continued)
Pin number
Symbol
Function
I/O type



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