L6254 データシートの表示（PDF） - STMicroelectronics

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L6254

12V DISK DRIVE SPINDLE & VCM, POWER & CONTROL “COMBO”

STMicroelectronics 

ELECTRICAL CHARACTERISTICS (Continued)

Symbol

Parameter

THERMAL SENSING

TSD

Shutdown Temperature

THYS

Hysteresis

TEW

Early Warning

SUPPLY MONITOR

VTR

Trip Point

VHYS

Hysteresis Voltage

IDLY

Porb Delay Current

Ron_por Porb Pull Down Ron

VDLY

IIN

Porb Dly Threshold

Input Current

VOLTAGE BOOST

VBOOST Output Voltage

Fosc

Internal Oscillator

SW1 OUTPUT

RGATE Gate Driver for External Mosfet

VGATE

Off Gate State Voltage for

External Mosfet

DIGITAL LOGIC LEVELS

VIH

Input Logic ”1”

VIL

Input Logic ”0”

VOH

Output Logic ”1”

VOL

Output Logic ”0”

FSYSCLK System Clock

VCM, DAC

Resolution

Differential Linearity

Integral Linearity

Midscale Offset

TC

Convertion Time

Full Scale Voltage

Full Scale Error

VCM, ERROR AMPLIFIER

AVOL

VOS

Open Loop Gain

Input Offset Voltage

IIB

Input Bias Current

Test Condition

Input Rising

Input falling

TR_5V, TR_12V > VTR

Vpordly = 2V

Vdd > 2V and sink 1mA

Vpordly = 2V

TR_5V, TR_12V > VTR

VIN < 4V

Internal Resistor to CP

IO = 1mA VCC = 3.5V

VDD = 5.5V

VDD = 4.5V

ISOURCE = 20µA

ISOURCE = -400µA

1 LSB Change

-Tested

By design

Referenced to VCC/2

Referenced to VCC/2

DC

L6254

Min. Typ. Max. Unit

150

180

°C

60

°C

TSD-25

°C

1.92

2

2.08

V

100

mV

1.5

2

2.5

µA

500

Ω

2.5

3.0

3.5

V

-1

1

µA

VCC+5

130

VCC+6.3 V

200 250 kHz

200

kΩ

0.7

V

2.4

Vdd-0.2

20

V

0.5

V

V

0.4

V

25 MHz

14

Bits

-1

-0.5

9

-5

±1

-4

1

LSB

0.5

Bits

5

mV

5

µs

V

4

%

50

-5

-250

db

5

mV

250

nA

5/17

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