L7250 datasheet(3/46 Pages) STMICROELECTRONICS

Part #	L7250

Description	5V & 12V SPINDLE AND VCM MOTORS DRIVER

Download	46 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

3 / 46 page

3/46

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°

V

Description

Similar Part No. - L7250

Manufacturer	Part #	Datasheet	Description
STMicroelectronics	L7200	262Kb / 23P	MOZART, 12V DISK DRIVE SPINDLE & VCM, POWER & CONTROL ?쏞OMBO?
Intel Corporation	L7200	1Mb / 91P	Intel Core2 Duo Mobile Processor for Intel Centrino Duo Mobile Processor Technology
STMicroelectronics	L7203	170Kb / 13P	SMOOTH DRIVE SPINDLE MOTOR FOR OPTICAL DRIVE APPLICATION WITH POWER INTEGRATED
	L7203S	170Kb / 13P	SMOOTH DRIVE SPINDLE MOTOR FOR OPTICAL DRIVE APPLICATION WITH POWER INTEGRATED
	L7207	58Kb / 3P	Dual mode disk drive spindle and VCM motor driver

More results

Similar Description - L7250

Manufacturer	Part #	Datasheet	Description
Hitachi Semiconductor	HA13557AFH	120Kb / 28P	Combo (Spindle & VCM) Driver
Hitachi Semiconductor	HA13561F	114Kb / 26P	Combo (Spindle & VCM) Driver
List of Unclassifed Man...	LD7000	29Kb / 2P	Spindle/VCM Controller and Pre-driver
Hitachi Semiconductor	HA13566AF	83Kb / 20P	Combo (Spindle & VCM) Driver
Hitachi Semiconductor	HA13614FH	122Kb / 26P	Combo (Spindle & VCM) Driver
STMicroelectronics	L7220	79Kb / 4P	Disk drive spindle and VCM motor driver
	L6254	109Kb / 17P	12V DISK DRIVE SPINDLE & VCM, POWER & CONTROL ?쏞OMBO? April 1999
	L6269	109Kb / 17P	12V DISK DRIVE SPINDLE & VCM, POWER & CONTROL ?쏞OMBO?
	L6268	109Kb / 17P	12V DISK DRIVE SPINDLE & VCM, POWER & CONTROL ?쏞OMBO?
Hitachi Semiconductor	HA13571FR	103Kb / 22P	Combo (Spindle & VCM) Driver for HDD

More results

L7250 Datasheet(PDF) 3 Page - STMicroelectronics

L7250 Datasheet(HTML) 3 Page - STMicroelectronics

Similar Part No. - L7250

Similar Description - L7250

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

Datasheet Download

Link URL