L7250 데이터 시트보기 (PDF) - STMicroelectronics

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L7250

5V & 12V SPINDLE AND VCM MOTORS DRIVER

STMicroelectronics 

L7250

ELECTRICAL CHARACTERISTCS (continued)

POWER SUPPLY [VCC5 & VCV] VCC5 = 5V ±10%, VCV = 12V ±10%. Tamb = 25°C (unless otherwise specified)

Symbol

Parameter

Test Condition

Min. Typ. Max. Unit

V18

IDRIVE

V33

IDRIVE

Output base current drive

15

mA

NEGATIVE REGULATOR

FREQ0 Oscillator frequency

Default configuration

500

KHz

FREQ1 Oscillator frequency

TestRegister = ‘00001001’

or = ‘00101001’

1

MHz

VoutH High level output voltage

TBD

V

VoutL Low level output voltage

TBD

V

VNEerr Feedback input offset

OFFS

-10

10

mV

VNEGerr Feedback input bias

BIAS

0

1

µA

Vneg_err Common mode rejection ratio

f < 10 KHz, tested at DC only

46

dB

_cmrr

CMRR=AV DIFF/AV CM

Vneg_err supply voltage rejection ratio VCV f < 10 KHz, tested at DC only

60

dB

_svrr

SHOCK SENSOR

SkIgain0 Input OPAMP gain0

SkIgain1 Input OPAMP gain1

SkIoff Input OPAMP offset

SkIinput Input OPAMP input impedance

SkFgain Filter OPAMP open loop gain

SkFband Filter OPAMP unity gain

bandwidth

SkFoff Filter OPAMP offset voltage

SkOThH0 Output window comparator

VthHigh

SkOThH1 Output window comparator

VthHigh

SkOThL0 Output window comparator

VthLow

SkOThL1 Output window comparator

VthLow

Reg02H ‘b7’ = 0

Reg02H ‘b7’ = 1

Reg02H ‘b7’ = 0

Guaranteed by design

Referred to Vref25 ;

Reg02H ‘b6’ = 0

Referred to Vref25 ;

Reg02H ‘b6’ = 1

Referred to Vref25;

Reg02H ‘b6’ = 0

Referred to Vref25;

Reg02H ‘b6’ = 1

10

V/V

80

dB

-15

+15 mV

10

Mohm

80

DB

5

Mhz

-10

+10 MV

200

mV

500

mV

200

mV

500

mV

10/46

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