TB6591FLG [MARKTECH]

Micro Peripheral IC;


型号：	TB6591FLG
厂家：	MARKTECH CORPORATE
描述：	Micro Peripheral IC
文件：	总10页 (文件大小：291K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

TB6591FL/FLG

Toshiba Bi-CMOS Integrated Circuit Silicon Monolithic

TB6591FL/FLG

7channelbridge-driverforDC m otor

TB6591FL is a motor driver IC for DC which uses LDMOS with

low ON-resistor for output transistors.

1 constant current control type bridge dirver circuit and 3 constant

voltage control type steppning motor driver circuits for

2phase/1-2phase excitation are included in the IC.

Application

DSC etc

Feature

・

Supply voltage for motor : VM ≦6V (Max.)

Supply voltage for control : Vcc = 2.7 to 6V

Output current : Iout ≦ 0.8A (Max.)

－－

－

QON48 0707 0.50

Wight： 0.1 g (Typ.)

Output transistor with Pch/Nch LDMOS push-pull structure

Low ON resistor : Ron = 1.5Ω(total/typ. at VM=5V,Vcc=5V)

Available of controlling by PWM chopping : fosc≦100kHz

Available of direct PWM control (ch.A～F)

Built-in power save function

Built-in thermal shutdown circuit

Package : QON48

This product has a MOS structure and is sensitive to electrostatic discharge. When handling this product,

ensure that the environment is protected against electrostatic discharge by using an earth strap, a conductive

mat and an ionizer. Ensure also that the ambient temperature and relative humidity are maintained at

reasonable levels.

Company Headquarters

3 Northway Lane North

Latham, New York 12110

Toll Free: 800.984.5337

Fax: 518.785.4725

California Sales Office:

950 South Coast Drive, Suite 265

Costa Mesa, California 92626

Toll Free: 800.984.5337

Web: www.marktechopto.com | Email: info@marktechopto.com

Fax: 714.850.9314

TB6591FL/FLG

Block Diagram

STBY

STBY1 STBY2 STBY3

GND

Vcc

VM1

ALL STANBY

AIN1

H-SW A

Control

Logic

AO1

Pre

H-Bridge

AIN2

Drive

AO2

PWM1

PGND1

BIN1

H-SW B

Control

Logic

BO1

BO2

Pre

Drive

H-Bridge

BIN2

VM2

CIN1

H-SW C

Control

Logic

CO1

Pre

H-Bridge

CIN2

Drive

CO2

PGND2

PWM2

DIN1

H-SW D

Control

Logic

DO1

DO2

Pre

H-Bridge

DIN2

Drive

VM3

EIN1

H-SW E

Control

Logic

EO1

Pre

H-Bridge

EIN2

Drive

EO2

PGND3

PWM3

FIN1

H-SW F

Control

Logic

FO1

FO2

Pre

Drive

H-Bridge

FIN2

Vref

Band

Gap

Vref

TSD

VM4

GO1

(0.6V)

GIN1

H-SW G

Control

Logic

H-Bridge

Pre

GIN2

Vlim

Drive

GO2

Timing

Logic

OSC

2005/06/02

TOSHIBA

TB6591FL/FLG

M axim um rating (Ta=25℃)

Characterristic

Supplyvoltage forcontrol

Supplyvoltage form otor

Outputvoltage

Sym bol

Rating

Unit

Rem ark

Vcc

VOUT

Iout

VIN

Outputcurrent

0.8

Inputvoltage

-0.2? 6

0.74

IN1,2,PW M ,STBY

Notm ounted

Powerdissipation

? ?

Operating tem perature

Storage tem perature

Topr

Tstg

-20 ? 85

-55 ? 150

℃

Operating Range (Ta=-20 to 85℃)

Rating

Characteristic

Sym bol

Unit

M in.

Typ.

M ax.

5.5

Supplyvoltage forcontrol

Supplyvoltage form otor

Outputcurrent

Vcc

2.7

2.2

---

3.6

---

5.5

600

100

Iout

fosc

fpwm

m A

KHz

kHz

OSC frequency

DirectPW M frequency

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TOSHIBA

TB6591FL/FLG

Function

Input

Output

IN1

IN2

PW M

OUT1

OUT2

M ode

Shortbrake

Reverse

Shortbrake

Forward

Shortbrake

OFF

Stop

(High im pedance)

OFF

Stand-by(Powersave)

H/L

(High Im pedance)

Note)H-SW forA to F

Operation Description

・H-SW A to F

Direct PWM control function

Speed can be controlled by inputting the high-level or low-level PWM signal to the pin PWM.

When PWM control is provided, normal operation and short brake operation are repeated.

To prevent penetrating current, dead time t2 and t4 is provided in the IC.

OUT1

OUT2

OUT1

Ｍ

GND

t2=0.5us (Typ.)

OUT1

OUT2

OUT1

OUT2

Ｍ

GND

t4=0.5us (Typ.)

OUT1

Voltage wave

GND

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TOSHIBA

TB6591FL/FLG

・H-SW G

A voltage (V_OSC) that is charged to or discharged from the capacitor is calculated as follows:

òi dt

OSC

Where a time when V_OSC= 0.5 V is t1, and a time when V_OSC= 1.2 V is t2:

DV_OSC= I (t1 - t2)/C_OSC

DVosc･Cosc

t1 - t2

Triangular wave oscillation waveform (f_OSC) is calculated:

OSC

2(t1 - t2) 2× D

OSC OSC

= 1/2 × 0.5V ÷ 280uA × Cosc

1/3.571E+3 × Cosc

20μA

280μA

1.1V

充電時ON

Delay

500ns

OSC

Cosc

40kΩ

0.6V

20kΩ

280μA

Oscillator block

Vosc waveform

・Chopping control

The winding current flows while an output drive transistor is turned On. When the V_RFreaches the limit voltage

level (Vlimit), the comparator detects it and turns off the output drive transistor.

The oscillator output is squared to generate an internal clock. The off timer starts on the rising edge of the

internal clock and is active for two internal clocks. When the off timer stops, the PWM goes high.

1osc = 1rate CK

（

）

up edge count

down edge count

Oscillator

Internal clock

off timer

2-bit counter

PWM output

VLimit

Winding current

*1: Increase of current

*2: Chopping of current

Q1 to Q4 are turned off.

Q1 and Q4, or Q2 and Q3 are turned on.

・Pull down resistance:200kohm is included for input terminal(IN1,IN2,STBY,PWM).

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TOSHIBA

TB6591FL/FLG

Electricalcharacteristic(Ta=25℃,Vcc=3.0V,VM =5V)

Characteristic

Sym bol

TestCondition

Stop m ode

M in.

Typ.

M ax.

Unit

? A

Icc(STOP)

Icc(BRK)

Icc(W )

---

Brake m ode

Supplycurrent

Icc(STB)

IM (STB)

---

Stand-bym ode

μA

Vcc

-0.4

Vcc

VIH

---

+0.2

Inputvoltage

VIL

VIN(HIS)

IIH

-0.2

---

0.3

0.4

---

Inputcircuit

Hysteresisvoltage

(Nottested)

VIN=3V

Inputcurrent

Inputvoltage

Inputcurrent

μA

VIN=0V

---

IIL

Vcc

-0.4

Vcc

VIHS

+0.2

-0.2

---

0.4

VILS

IIHS

IILS

Stand-bycircuit

VIN(STBY)=3V

VIN(STBY)=0V

Io=0.2A

μA

0.28

0.84

0.4

1.2

Outputsaturation voltage

Outputleakcurrent

Vsat(U+L)

Io=0.6A

IL(U)

IL(L)

VM =Vout=6V

VM =6V,Vout=0V

μA

VF(U)

VF(L)

Diode forward voltage

IF=0.6A

No load

Internalreference voltage

Vref

0.57

-5

0.6

---

0.63

Inputoffsetforconstantcurrentdetection

com paratoroffsetvoltage

RF com p RRF=1ohm , Vlim it=0.1V

m V

Operating tem perature

Therm al

TSD(ON)

(Nottested)

TSD(His)

---

170

---

℃

shutdown circuit

Hysteresis

2005/06/02

TOSHIBA

TB6591FL/FLG

Application example

MCU

Stepping motor2

Stepping motor3

（Min.4pin）

DC motor

（2pin）

Stepping motor2

（Min.4pin）

GIN2 GIN1

FIN2 FIN1 PWM3 EIN2 EIN1 STBY3 DIN2 DIN1 PWM2 CIN2 CIN1 STBY2 BIN2 BIN1 PWM1 AIN2 AIN1 STBY1 STBY ALL

560pF

OSC

Supply

Voltage

for

H-SW G

H-SW F

control

Logic

H-SW E

H-SW D

control

Logic

H-SW C

control

Logic

H-SW B

H-SW A

10uF

0.1uF

20k

control

Logic

control

Logic

control

Logic

control

Logic

Vref

0.6V

control

0.1uF

(Vcc)

2.7～5.5V

Pre

Timer

Drive

H-SW

Driver

H-SW

Driver

H-SW

Driver

H-SW

Driver

H-SW

Driver

H-SW

Driver

H-SW

Driver

Supply

Voltage

for motor

10uF

0.1uF

Stepping

Motor 3

Stepping

Motor 2

Stepping

Motor 1

Actuator

2.2V～

(VM)

5.5V

Note) Connect capacitor (C1, C2, C3, C4, C5) as close to the IC as possible.

Note) Constant current value is determined by following equation à Io(const.)=Vlimit / R3

In case of the application example above, Vlimit and Io(const) are shown as below.

Vlimit=Vref x R2/(R1 + R2) = 0.1V, Io(const)=0.1V / RF(=1ohm) = 0.1A

2005/06/02

TOSHIBA

TB6591FL/FLG

Package Dimensions

QON48-P-0707-0.50

Weight： 0.1 ｇ

2005/06/02

TOSHIBA

TB6591FL/FLG

2005/06/02

TOSHIBA

TB6591FL/FLG

RESTRICTIONS ON PRODUCT USE

000707EBA

TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in

general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the

responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for

the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of

human life, bodily injury or damage to property.

In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the

most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the

“Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability Handbook” etc..

The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal

equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products

are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a

malfunction or failure of which may cause loss of human life or bodily injury (“Unintended Usage”). Unintended Usage include

atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments,

combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products

listed in this document shall be made at the customer’s own risk.

The products described in this document are subject to the foreign exchange and foreign trade laws.

The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed

by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result

from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA

CORPORATION or others.

The information contained herein is subject to change without notice.

2005/06/02

TB6591FLG [MARKTECH]

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