KA2822D datasheet(10/15 Pages) FAIRCHILD

Part #	KA2822D

Description	3-Phase BLDC Motor Driver

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

Direct Link	http://www.fairchildsemi.com

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10 / 15 page

KA2822D

10

Electrical Characteristics (Continued)

(Ta=25

°C, VCC=5V)

Notes:

Reference value

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

CHARGE PUMP

Charge current

ICP

−

RPM=L

−15

−20

−25

µA

Discharge current

ICP+

RPM=L

15

20

25

µA

Current ratio note

IR

ICP+ / ICP

−

0.9

1.0

1.1

-

Off current

IOFF

VCP=0.63V

-

50

nA

Clamp voltage note

VCLP

-

1.3

1.5

V

FG AMP

Output DC voltage note

VFG

-

1.0

1.3

1.6

V

Voltage gain 2

GFG

-24

34

44

dB

Input voltage range note

VIN

-

2.0

-

20

mVP-P

Noise margin 1 note

ND

Differential noise

-

0.5

mVP-P

Noise margin 2 note

NC

Common mode noise

-

0.5

VP-P

SPEED CONTROL

Count range 1note

N1

RPM=L

-

1666.5

-

Count range 2 note

N2

RPM=H

-

1388.5

-

Operating freq.

FD

-

1.0

1.1

MHz

BURST ADJUSTMENT

Input current

IBI

--

1

2

µA

Threshold voltage 1

VTH1

RPM=L

1.2

1.45

1.7

V

Threshold voltage 2

VTH2

RPM=H

1.05

1.3

1.55

V

PULSE WIDTH ADJUSMENT

Ct2 charge current

ICT2

-

−19

−25

−36

µA

Threshold voltage 3

VTH3

-

0.9

1.1

1.3

V

INDEX OUTPUT

Output leakage current note

IOH

--

1

2

µA

Output low voltageVO1

IO=1mA

-

0.2

0.4

V

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