ka3082 controlador de motores cc

7/30/2019 KA3082 CONTROLADOR DE MOTORES CC

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2002 Fairchild Semiconductor Corporation

www.fairchildsemi.com

Rev. 1.0.2

Features Built-in Brake Function for Stable Brake Characteristics. Built-in Element to Absorb a Surge Current Derived From

Changing Motor Direction and Braking Motor Drive. Motor Speed Control by an External Voltage. Stable Motor Direction Change. Interfaces With CMOS Devices. Built-in the Thermal Shut Down Circuit (165 C). Low Standby Current. (6.5mA)

DescriptionThe KA3082 is a monolithic integrated circuit designed fordriving bi-directional DC motor with braking and speedcontrol, and it is suitable for the loading motor driver of VCR, CDP, and TOY systems. The speed control can beachieved by adjusting the external voltage of the speedcontrol pin. It has two pins of logic inputs for controlling theforward/ reverse and braking.

10-SIP

Target Applications Video Cassette Recorder (VCR) Loading Motor Low Current DC Motor Such as Audio or Video

Equipment. General DC Motor

Ordering InformationDevice Package Operating Temp.

KA3082B 10-SIP -25 C ~ +75 C

K A 3 0 8 2B i -Di r e c t i o n a l D C M o t o r D r i v e r


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Pin Assignments

Pin Definitions

Internal Block Diagram

Pin Number Pin Name I/O Pin Function Description1 GND - Ground

2 VO1 O Output 1

3 VZ1 - Phase Compensation

4 VCTL I Motor Speed Control

5 VIN1 I Input 1

6 VIN2 I Input 2

7 SV CC - Supply Voltage (Signal)

8 PV CC - Supply Voltage (Power)

9 VZ2 - Phase Compensation

10 V O2 O Output 2

1 2 3 4 5 6 7 8 9 10

GND V O1 VZ1 VCTL VIN1 VIN2 SV CC VO2PV CC VZ2

KA3082

DRIVER OUT

PRE DRIVER

LOGIC SWITCH TSD B I A S

1 2 3 4 5 6 7 8 9 10

GND VO1 VZ1 VCTL VIN1 VIN2 SV CC PV CC VZ2 VO2


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Equivalent Circuit sDescription Pin No. Internal Circuit

Output 2, 10

PhaseCompensation 3, 9

Speed Control 4

2

Vcc

Vcc

10

9

3

VCC

50

VCC

4

VccVcc


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Equivalent Circuit (Continued)

Description Pin No. Internal Circuit

Input 5, 6

SV CCPV CC

78

5

6

VCC

VccVcc

7V CC

8


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Absolute Maximum Ratings (Ta=25 C)

Note:1. Duty 1 / 100, pulse width 500 s2. 1) When mounted on glass epoxy PCB (76.2 114 1.57mm)

2) Power dissipation reduces 9.6mV / C for using above Ta=25 C.3) Do not exceed Pd and SOA(Safe Operating Area).

Power Dissipation Curve

Recommened Operating Conditions (Ta=25 C)

Note:Caution 1) PV CC SV CCCaution 2) When PV CC is above 16V, the V CTL must be opened or 8.5 VCTL PV CC

Parameter Symbol Value Unit Remark

Supply Voltage V CCmax 18 V -

Maxium Output Current I Omax 1.6 note1 A -

Power Dissipation P d 1.2note2

W -Operating Temperature T OPR -25 ~ +75 C -

Storage Temperature T STG -55 ~ +125 C -

Parameter Symbol Operating voltage range Unit

Operating Supply Voltage SV CC, PV CC 7 ~ 18 V

1, 200

00 25 50 75 100 125

Pd (mW)

Ambient temperature, Ta [ C]

SOA

150 15


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Electrical Characteristics (Ta=25 C, V CC =SV CC =PV CC =12V)Parameter Symbol Conditions Min. Typ. Max. Unit

Quiescent Current I CC2 Pin5 & 6: GND, R L= 4 6.5 9.5 mAMin. Input-on Current 1 I IN1 RL=, pin5=I IN1, pin6=L - 10 30 A

Min. Input-on Current 2 I IN2 RL=, pin5=L, pin6=I IN - 10 30 A

Input Threshold Voltage 1 V ITH1 RL=, pin5=V IN, pin6=L 1.0 1.3 1.6 VInput Threshold Voltage 2 V ITH2 RL=, pin5=L, pin6=V IN 1.0 1.3 1.6 V

Output Leakage Current 1 I OL1 RL=, pin5 & 6=GND - 0.01 1 mA

Output Leakage Current 2 I OL2 RL=, pin5 & 6=GND - 0.01 1 mA

Zener Current 1 I Z1 RL=, pin5=H, pin6=L - 0.85 1.5 mA

Zener Current 2 I Z2 RL=, pin5=L, pin6=H - 0.85 1.5 mA

Output Voltage 1 V O1 RL=60 , pin5=H, pin6=L 6.6 7.2 7.6 V

Output Voltage 2 V O2 RL=60 , pin5=L, pin6=H 6.6 7.2 7.6 V

Saturation Voltage 1 (Upper) V SAT1 IO=300mA - 1.9 2.3 V

Saturation Voltage 2 (Upper) V SAT2 IO=500mA - 1.9 2.3 V

Saturation Voltage 1 (Lower) V SAT3 IO=300mA - 0.25 0.5 VSaturation Voltage 2 (Lower) V SAT4 IO=500mA - 0.4 0.65 V


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Application Information

1. Thermal Shut Down Circuit

When Ta = 25 C, Q2 & Q3 are Turn-off and output stage operate normally.V1 = I (R1 + R2)V2 = R2 / (R1 + R2) V1 = 0.37VWhen Ta = 165 C, Q2 & Q3 become Turn-on and it turn-off the output stage.0.70V - 0.37V = 330mV (When Q 2 & Q 3 are Turn-on, Vbe Q2 = Vbe Q3 = 0.70V)And temperature coefficient of Q 2 = Q 3 = 2mV/ C

T.S.D: 330mV / 2mV = 165 C

2. Logic Input & Output Table

Input High is above 2.0V.Input Low is below 0.7V.

Input OutputMotor

Pin #5 Pin #6 Pin #2 Pin #10

Low Low Low Low Brake

High Low High Low Forward

Low High Low High Reverse

High High Low Low Brake

I

V1

V2

Q1

R1

R2

Q2 Q3


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3. Logic Switch Circuit

This circuit define reference voltage of output.

When pin #5 is H and pin #6 is L,- V1 = V ZD + V BEQ4 + V BEQ5 = 8.9V- V2 = V BEQ 7 + V SATQ6 = 0.87V

V1 and V2 are related with the output voltage of the motor and change according to the voltage of pin #4 (V CTL ).

4. Drive Output Circuit

V1 = 8.9V

V2 = 0.87VVO1 = V 1 - V BEQ1 - V BEQ2VO2 = V Q6SATVO = V O1 - V O2

= V 1 - V BEQ1 - V BEQ2 - V Q6SATIRL = (V O1 - V O2 ) / R L

5 6

4

SV CC

V1 V2

Q4

Q5

Q6

Q7

VCTL

7.4V

M

P VCC

V1

R1

Q1 Q4V2

VO1R2

VO2

Q3 Q6

Q2 Q5

RL


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Typical Performance Characteristics

1.1.1.1. VVVVCCCCCCCC vsvsvsvs IIIICCCCCCCC 2.2.2.2. TemperatureTemperatureTemperatureTemperature vs vsvsvs IIIICCCCCCCC

3.3.3.3. VVVVCT LCT LCT LCT L vs. Vovs. Vovs. Vovs. Vo 4.4.4.4. Temperature v s. V oTemperature vs. VoTemperature vs. VoTemperature vs. Vo

CHARACT ERISTIC G RAPHSCHARACT ERISTIC G RAPHSCHARACT ERISTIC G RAPHSCHARACT ERISTIC G RAPHS

012345

6789

10

0 2 4 6 8 10 12 14 1 6 18 20

VCC (V )

I C C

( m A )

VIN = 0V

0123456789

10

- 35 - 15 5 25 45 65 85

Temp.( C)

I C C

( m A )

VCC = 12VVIN = 0V

0

2

4

6

8

10

12

0 2 4 6 8 10 12

VCT L(V )

V O

( V )

VCC = 12VVIN = 5V/0VRL = 60

6.5

6.66.76.86.97.07.17.27.37.47.57.67.7

- 35 - 15 5 25 45 65 85

Temp.( C)

V O

( V )

VCC = 12VVCT L = 7.4VVIN = 5V/0VRL = 60

5 .5 .5 .5 . IIIIOOOO vs. Vvs. Vvs. Vvs. V SATSATSATSAT (UPPER)(UPPER)(UPPER)(UPPER) 5 .5 .5 .5 . IIIIOOOO vs. Vvs. Vvs. Vvs. V SATSATSATSAT (LOWER)(LOWER)(LOWER)(LOWER)

0.0

0.5

1. 0

1. 5

2. 0

2. 5

3. 0

0.2 0.4 0.6 0 .8 1. 0 1.2

IO (A)

V S A T

( V )

VCC = 12VVCT L = opeVIN = 5V/0V

0.00.10.20.30.40.50.60.70.80.91. 0

0.2 0.4 0.6 0 .8 1. 0 1.2

IO (A )

V S A T

( V )

VCC = 12VVCT L = openVIN = 5V/0V

1.1.1.1. VVVVCCCCCCCC vsvsvsvs IIIICCCCCCCC 2.2.2.2. TemperatureTemperatureTemperatureTemperature vs vsvsvs IIIICCCCCCCC

3.3.3.3. VVVVCT LCT LCT LCT L vs. Vovs. Vovs. Vovs. Vo 4.4.4.4. Temperature v s. V oTemperature vs. VoTemperature vs. VoTemperature vs. Vo

CHARACT ERISTIC G RAPHSCHARACT ERISTIC G RAPHSCHARACT ERISTIC G RAPHSCHARACT ERISTIC G RAPHS

012345

6789

10

0 2 4 6 8 10 12 14 1 6 18 20

VCC (V )

I C C

( m A )

VIN = 0V

0123456789

10

- 35 - 15 5 25 45 65 85

Temp.( C)

I C C

( m A )

VCC = 12VVIN = 0V

0

2

4

6

8

10

12

0 2 4 6 8 10 12

VCT L(V )

V O

( V )

VCC = 12VVIN = 5V/0VRL = 60

6.5

6.66.76.86.97.07.17.27.37.47.57.67.7

- 35 - 15 5 25 45 65 85

Temp.( C)

V O

( V )

VCC = 12VVCT L = 7.4VVIN = 5V/0VRL = 60

5 .5 .5 .5 . IIIIOOOO vs. Vvs. Vvs. Vvs. V SATSATSATSAT (UPPER)(UPPER)(UPPER)(UPPER) 5 .5 .5 .5 . IIIIOOOO vs. Vvs. Vvs. Vvs. V SATSATSATSAT (LOWER)(LOWER)(LOWER)(LOWER)

0.0

0.5

1. 0

1. 5

2. 0

2. 5

3. 0

0.2 0.4 0.6 0 .8 1. 0 1.2

IO (A)

V S A T

( V )

VCC = 12VVCT L = opeVIN = 5V/0V

0.00.10.20.30.40.50.60.70.80.91. 0

0.2 0.4 0.6 0 .8 1. 0 1.2

IO (A )

V S A T

( V )

VCC = 12VVCT L = openVIN = 5V/0V


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Test Circuits

Typical Application Circuits

1 2 3 4 5 6 7 8 9 10

KA3082GND V O1 VZ1 VCTL VIN1 VIN2 SV CC PV CC VZ2 VO2

A

A

A A

VCC

S1

S2

ZD7.4V VIN

S5

S3

CD

S4

0.1 F

9 10

KA3082GND V O1 VZ1 VCTL VIN1 VIN2 SV CC PV CC VZ2 VO2

1 2 3 4 5 6 7 8

0.1

10

VCC

M


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9/6/02 0.0m 001Stock#DSxxxxxxxx

2002 F i hild S i d C i

LIFE SUPPORT POLICYFAIRCHILDS PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICESOR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTORCORPORATION. As used herein:

1. Life support devices or systems are devices or systemswhich, (a) are intended for surgical implant into the body,or (b) support or sustain life, and (c) whose failure toperform when properly used in accordance withinstructions for use provided in the labeling, can bereasonably expected to result in a significant injury of theuser.

2. A critical component in any component of a life supportdevice or system whose failure to perform can bereasonably expected to cause the failure of the life supportdevice or system, or to affect its safety or effectiveness.

www.fairchildsemi.com

DISCLAIMERFAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANYPRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANYLIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHERDOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

ka3082 controlador de motores cc

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