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NJW4302

Preliminary

THREE-PHASE DC BRUSHLESS MOTOR CONTROL IC

s

GENERAL DESCRIPTION

The NJW4302 is a three-phase DC brushless motor

pre-driver IC for precision applications.

The NJW4302 consists of PWM driver, motor velocity

control, FG(Frequency Generator) output, and voltage

velocity integration circuit.

The NJW4302 realizes stabilized velocity and it is suitable

for printer, FAX, and other DC motor control systems.

s

PACKEGE OUTLINE

NJW4302FA1

s

FEATURES

Speed discriminator and PLL speed

control circuit

Direct PWM driver

CR oscillator

Lock protection output

Break circuit (short circuit braking)

Start/stop switch Start/Stop Switch Circuit

Current limit circuit

Thermal shut down/Under voltage

lockout circuit

FG output amplifier/Integrating circuit

Shunt regulator output : 5V

Bi-CMOS technology

PACKAGE OUTLINE QFP44

鈥?/div>

s

PIN CONFIGRATION

WL

VH

VL

UH

UL

RF

H3

H2

H1

WH

PVCC

VCC

VREG

DGND

AGND

VSH

CR

CROCK

R

C

H1+

FGIN+

FGIN-

FGOUT

FGSOUT

NJW4302 QFP44

PGND

AGND

N2

N1

SS

CLK

FILO FILI

TOC

INT IN

POUT LD

DOUT

INTOUT

INTREF

BR

FR

sBLOCK

DIAGRAM

FGO

FGSO

O

D o ut

LD

F

C R OC K IN TR E IN TIN IN TOU TS/S

R OC K

OSC

BR

F/R

V

+

F

LD

FGIN-

FGIN

+

-

IN TEGR ATION

AMP

BR

F/R

+

-

+

FG

SPEED

D I SC RIMI N ATOR

L OGIC

H AL L

H YS

AMP

H1

+

H1 -

H2

+

H2 -

H3

+

H3 -

S/S

Pou t

Vreg

VSH

VC O

U T

O

PR OTEC TION

ALTER N ATIVE

SPEE D

PL L

V

R EG

1

V

R EF

CLK

PLL C OU N TER

P WM B LOC K

C IR C U IT

TS D / L VD S

P R I D R IVER

-

C OU N TER

C IR CU IT

FILI

FILO

R

C

N1

N2

GN D

C R R F TOC

U L VL WL U H VH WH

-1-

制造商
NJR
產(chǎn)品種類
馬達(dá)/運(yùn)動/點火控制器和驅(qū)動器
類型
3 Phase Brushless DC Motor Controller
電源電流
55 mA
封裝 / 箱體
QRF-44-A1
封裝
Tray
最大工作溫度
+ 85 C
最小工作溫度
- 40 C
工廠包裝數(shù)量
50

NJW4302FA1相關(guān)型號PDF文件下載

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