L7250

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(*) used also to set the IC power supply application. If this pin is pull-up externally the L7250 became a 5V application

S = Supply ; IO = Input/Output ; I = Input ; O = Output ; gnd = Ground.

44

VCMGND4

gnd

VCM power ground

45

VCMN1

O12

VCM negative output

46

VCMN2

O12

VCM negative output

47

RSEN1

O12

Spindle power sensing resitor

48

RSEN2

O12

Spindle power sensing resitor

49

Rsense

I5

Spindle sensing resistor input

50

OUTW1

O12

Spindle phase C output

51

OUTW2

O12

Spindle phase C output

52

VM1

IO12

Vmotor

53

VM2

IO12

Vmotor

54

VCV4

S12

12V power supply

55

VCV3

S12

12V power supply

56

OUTV1

O12

Spindle phase B output

57

OUTV2

O12

Spindle phase B output

58

RSEN3

O12

Spindle power sensing resitor

59

RSEN4

O12

Spindle power sensing resitor

60

OUTU1

O12

Spindle phase A output

61

OUTU2

O12

Spindle phase A output

62

CT

I12

Spindle central tap

63

CPOSCH

IO20

Charge pump diodes connection

64

VBOOST

IO20

Charge Pump voltage

PIN DESCRIPTION (continued)

N°

Pin

V

Description