L7250 데이터 시트보기 (PDF) - STMicroelectronics

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L7250

5V & 12V SPINDLE AND VCM MOTORS DRIVER

STMicroelectronics 

PIN DESCRIPTION (continued)

N°

Pin

V

Description

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

L7250

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