ML4423 查看數據表（PDF） - Micro Linear Corporation

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产品描述 (功能)

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ML4423

1, 2, or 3-Phase Variable Speed AC Motor Controller

Micro Linear Corporation 

0.1µF

12V

A

C

0.1µF

VCC

26

0.47µF

C0

12

SINEA

10

CPWM

13

220pF

VREF 7

RREF

8

200kΩ

8V REF

SINEA

PWM

GENERATOR

100kΩ

VSPEED 5

0.1µF

RSPEED 6

160kΩ

SPEED

FREQ.

CONTROLLER

AMPLITUDE

PWM SINE

CONTROLLER

100kΩ

VMIN

4

SINEB

ML4423

UNDER VOLTAGE

LOCKOUT

OUTPUT

DRIVE & SHOOT

THROUGH

PROTECTION

1 SENSEA

2 SENSEC

3 SENSEB

0.15µF

HA

24

LA

21

22 H B

LB

19

23 H C

LC

20

+12V

A

DRIVE +12V

B

DRIVE

17

27

GND

CGM1

0.001µF

28

11 15

CGM2 SINEB F/R

0.001µF

CURRENT

LIMIT

16 ISENSE

1kΩ

14

18

COAST 3PH/2PH

25 9

5V/12V RDT

SELECT

166kΩ

330pF

RLIMIT

250mΩ

99kΩ

0.15µF 99kΩ

1kΩ

1kΩ

B

49.5kΩ

500Ω

0.30µF

+VMOTOR

170–400V

+12V

1

2 HIN

15

11

10Ω

C

+

1µF

100Ω

PWR 12,13,14

INT100

3

LIN

8

457

10Ω

100Ω

Note: Use Extreme caution with high voltage AC motor control and drive circuitry.

When the motor is spinning at the desired speed, and the speed is rapidly reduced,

the energy stored in the rotation will generate a voltage greater than the +VMOTOR node,

and destruction of the power transistors, high side driver, ML4423

controller and the power supply may occur.

HV POWER STAGE

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