L6245 Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

L6245

5V HARD DISK DRIVE POWER COMBO

STMicroelectronics 

L6245

ELECTRICAL CHARACTERISTICS (Continued)

VCM DAC (Notes 5, 6)

Symbol

Res

N.L.

I.N.L.

CT

Parameter

Resolution

Differential Nonlinearity

Integral Nonlinearity

Conversion Time

ZO

FSTC

VOH

VOL

VZSO

Output Z

Full Scale Temp. Coeff.

High Output Voltage

Low Output Voltage

Zero Scale Offset

Test Condition

From 50% point of WR falling to

1% settling

Relative to Vref Input Code = 7Fh

Relative to Vref Input Code = 80h

Relative to Vref Input Code = 00

Min.

8

1.46

–1.53

Typ.

Max.

±0.5

±0.5

2

Units

bit

LSB

LSB

µs

100

200

1.52

–1.47

±10

Ω

ppm/°C

V

V

mV

Over velocity detector, coil voltage sense amplifier

Symbol

VO

IBC

G

PSRR

BW

CMR

VDR

VOR

IO

Parameter

Output Offset Voltage

Input Bias Current

Closed Loop Voltage Gain

Power Supply Rejection Ratio

Bandwidth

Input Common Mode Range

Input Differential Range

Output Range

Output Current

Test Condition

VCM+ = VCM–, within input

common mode range.

Measure wrt to Vref

(Note 3)

Av = 0.25V/V nominal

at DC

Above and below these values

the op amp will be in saturation

and will not invert sign.

Min.

–50

Typ.

Max. Units

+50 mV

0.242

50

200

0

10

0.258

VPOWER

µA

V/V

dB

KHz

V

0

0.3

æ400

VPOWER

V

3.5

V

µA

Over velocity detector, coil current sense amplifier

Symbol

VO

G

PSRR

Bw

CMR

VR

IO

Parameter

Output Offset Voltage

Closed Loop Voltage Gain

Power Supply Rejection Ratio

Bandwidth

Input Common Mode Range

Output Range

Output Current

Test Condition

VCM_RS1 shorted to GND for:

(a) VCM_CMD < Vref and

b) VCM_CMD > Vref. Measure wrt

Vref

Av = 2.5V/V nominal

at DC

Min.

–50

2.425

50

200

–0.1

0.5

+400

Typ.

Max. Units

+50 mV

2.575 V/V

dB

KHz

2

V

3.5

V

mA

7/15

Share Link: