KA2821D datasheet(5/8 Pages) FAIRCHILD

Teilenummer	KA2821D

Bauteilbeschribung	The KA2821D is a monolithic integrated circuit, and suit able as a two-phase stepping motor driver of a 3.5-inch FDD system

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Hersteller	FAIRCHILD [Fairchild Semiconductor]

Direct Link	http://www.fairchildsemi.com

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KA2821D

5

Electrical Characteristics

(Ta=25

°C, VCC=5V, VSA=12V, VSB=12V, unless specified otherwise)

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Digital input “L” voltage

VIL

--

-

0.8

V

Digital high level input voltage

VIH

-2.0

-

V

Digital low input current

IIL

VIN=0.8V

-

0

10

µA

Digital high input current

IIH1

VIN=2.0V

-

1

10

µA

IIH2

VIN=5V

-

0.3

1.0

mA

IVCCL

CE=0.8V

-

25

3

mA

Supply current

IVSL

CE=0.8V

-

6

10

mA

IVCCH

CE=0.8V

-

25

33

mA

IVSH

CE=2.0V

-

1

2

mA

Output sustain voltage

VSUS

IO=10mA, CE=0.8V

18

-

V

VSA, B output saturation voltage

VSAT1

IO=300mA, CE=2.0V

-

1.5

2.0

V

Output clamp voltage

VFU

IO=130mA (Upper)

-

3.0

5.0

V

VFL

IO=330mA (Lower)

-

1.5

2.0

V

Output delay time

TPLH

Input pulse (2kHz)

-

1.0

5.0

µs

TPHL

Input pulse (2kHz)

-

1.0

5.0

µs

TSD operating temperature

TSD

-

125

150

-

°C

TSD hysterisis

∆TSD

-

25

-

°C

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