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HIGH-VOLTAGE MONOLITHIC IC

ECN3035F/3036F

ECN3035F/3036F is a driver IC for a three-phase bridge inverter which has MOSFETs or IGBTs

for the outputs. Especially, it is very suitable for controlling the speed of three-phase DC

brushless motors to which converted AC200~230V power supplies are applied. The internal

block diagram is shown in Fig. 1.

Functions

*

*

*

*

*

*

Integrated charge pump circuit

Integrated 3-phase distributor circuit

Integrated PWM circuit

Integrated over current protection circuit

Integrated rotating direction sense circuit

Integrated FG circuit

Package

FP-28DJ(JEDEC)

Features

*

Speed control for a 3-phase DC brushless motor is available with an external microprocessor.

*

Bottom arm circuits can be operated in 20kHz chopping frequency of PWM.

VCC

(15V)

C0

CB

VCC

CB

VB

(7.5V)

HU

HV

HW

D1

RW RV RU

Hall ICs

D2

C2

+ -

C+

VS

Vs

+

C1

-

CL

VB

Supply

Charge Pump

CLOCK

PGU

PGV

PGW

RM

FG

MCR

Mono-

Multi

Edge-

Trigger

FG

Top arm

Driver

MU

CM

RWD

VSP

+

3-phase

Distributer

CMP

-

MV

MW

Bottom arm

Driver

OC detection

CLOCK

+

NGU

NGV

NGW

Motor

SAW Wave

Generator

CMP

-

Vref

Note.1

Filter

CR

RTR

CTR

VTR

GND

Note.1

ECN3035F:Vref=1.25V

ECN3036F:Vref=0.50V

RS

Rs

Fig.1 Block diagram

PDE-3035F/36F-1

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