KA2822CD Ver la hoja de datos (PDF) - Fairchild Semiconductor

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KA2822CD

3-Phase BLDC Motor Driver

Fairchild Semiconductor 

KA2822CD

Pin Definitions

Pin Number

Pin Name

I/O

Pin Function Description

1

FG_INPUT

I

Negative input pin FG signal amp.

2

AGC

I

Automatic gain control input pin

3

INDEX PULSE WIDTH

O

Index pulse width detection (1.1V) pin

4

VOLTAGE REGULATOR

O

Voltage (2.2V) generator output pin

5

INDEX BURST

O

Index pulse width detection (1.4V) pin

6

INDEX OUTPUT

O

Index pulse output pin

7

CE

I

Chip enable (Active low)

8

SIGNAL GROUND

-

Signal ground

9

FG ZERO CROSS

O

FG signal zero cross detection pin

10

FG OUTPUT

O

FG signal output pin

11

RPM SELECT

I

RPM selection pin (L: 300, H: 360rpm)

12

CHARGE PUMP OUTPUT

O

Charge pump output pin

13

OSC INPUT

I

1MHz oscillation input pin

14

NC

-

No connection

15

PHASE COMPENSATION

I

Phase compensation cap. connection pin

16

VCC

-

5V power supply pin

17

CURRENT DETECTION2

I

Over current detection pin

18

U INPUT (−)

I

Negative input pin of U phase amp

19

U INPUT (+)

I

Positive input pin of U phase amp

20

NC

-

No connection

21

W PHASE OUTPUT

O

W phase output pin

22

V PHASE OUTPUT

O

V phase output pin

23

U PHASE OUTPUT

O

U phase output pin

24

V INPUT (+)

I

Positive input pin of V phase amp

25

V INPUT (−)

I

Negative input pin of V phase amp

26

CURRENT DETECTION1

I

Over current detection pin

27

HALL BIAS

I

Hall sensor bias input pin

28

FG INPUT (+)

I

Positive input pin of FG signal amp

FIN

POWER GROUND

-

Power ground

3

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