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L7250 Folha de dados(PDF) 3 Page - STMicroelectronics

Nome de Peças L7250
Descrição Electrónicos  5V & 12V SPINDLE AND VCM MOTORS DRIVER
PDF  46 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L7250 Folha de dados(HTML) 3 Page - STMicroelectronics

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L7250
13
25_BASE
O5
Reg 1.8V ext NPN base
14
25_FEED
I5
Reg 1.8V feedback
15
33_BASE
O5
Reg 3.3V ext NPN base
16
33_FEED
IO5
Reg 3.3 V feedback
17
CPOR
IO5
POR delay capacitor
18
NPOR
O5
POR output signal
19
CBRAKE
IO5
Spindle brake capacitor
20
AGND
gnd
analog gnd
21
VREF25
IO5
2.5V reference
22
ZC
O5
Spindle zero crossing
23
Skin
I5
Shock sensor input
24
Skout
O5
Shock sensor 1st opamp output
25
SkFin
I5
Shock sensor filter input
26
SkFout
O5
Shock sensor filter output
27
SkDout
O5
Shock sensor output
28
Timer1
IO5
Timer 1 for unload procedure
29
CalCoarse
I5
VCM BEMF coarse calibration
30
ADaux
I5
auxiliary input for the ADC
31
VCMBEMF
O5
VCM BEMF processor output
32
Test
IO5
used for testing porpouse (*)
33
SEN
I5
Serial enable
34
SDATA
IO5
Serial data
35
SYSClk
I5
System clock
36
SCLK
I5
Serial clock
37
DAC_OUT
O5
VCM DAC output
38
ERR_IN
I5
VCM error opamp input
39
ERR_OUT
O5
VCM error opamp output
40
SNS_OUT
O5
VCM sense opamp output
41
SNS_P
I12
VCM sense opamp positive input
42
SNS_N
I12
VCM sense opamp negative input
43
VCMGND3
gnd
VCM power ground
PIN DESCRIPTION (continued)
N°
Pin
V
Description



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