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70908HKIM No. A1132-1/9

STK681-210-E

OverviewThe STK681-210-E is a hybrid IC for use in current control forward/reverse DC motor driver with brush.

Applications• Office photocopiers, printers, etc.

Features• Allows forward, reverse, and brake operations in accordance with the external input signal.

• 5.2A startup output current and 8A peak brake output current.

• Incorporating a current detection resistor (0.08Ω), fixed current control is possible.

Can drive a bipolar stepping motor by using the two drivers.

Specifications

Absolute maximum ratings at Tc = 25°C

Parameter Symbol Conditions Ratings unit

Maximum supply voltage 1 VCC

1 max VCC

2=0V 52 V

Maximum supply voltage 2 VCC2 max No signal -0.3 to +7.0 V

Input voltage VIN max Logic input pins -0.3 to +7.0 V

Output current IO max VCC2=5.0V, DC current 5.2 A

Brake current IOB max VCC2=5.0V, square wave current, operating time 60ms

(single pulse)8 A

Operating substrate temperature Tc max 105 °C

Junction temperature Tj max 150 °C

Storage temperature Tstg -40 to +125 °C

Ordering number : EN*A1132

Thick-Film Hybrid IC

Forward/Reverse Motor Driver

Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate

the performance, characteristics, and functions of the described products in the independent state, and are not

guarantees of the performance, characteristics, and functions of the described products as mounted in the

customer 's products or equipment. To verify symptoms and states that cannot be evaluated in an independent

device, the customer should always evaluate and test devices mounted in the customer 's products or equipment.

Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,

communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be

intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace

instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety

equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case

of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee

thereof. If you should intend to use our products for applications outside the standard applications of our

customer who is considering such use and/or outside the scope of our intended standard applications, please

consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our

customer shall be solely responsible for the use.

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STK681-210-E

No. A1132-2/9

Allowable Operating Ranges at Ta=25°C

Parameter Symbol Conditions Ratings unit

Operating supply voltage 1 VCC1 With signals applied 10 to 42 V

Operating supply voltage 2 VCC2 With signals applied 5±5% V

Input voltage VIN 0 to VCC2 V

Output current 1 IO1 VCC2=5.0V, DC current, Tc≤70°C 5.2 A

Output current 2 IO

2 VCC

2=5.0V, DC current, Tc=90°C 4.2 A

Output current 3 IO3 VCC2=5.0V, DC current, Tc=105°C 3.5 A

Brake current IOB VCC2=5.0V, square wave current, operating time 3.6ms,

Tc=105°C8 A

Refer to the graph for each conduction-period tolerance range for the output current and brake current.

Electrical Characteristics at Tc=25°C, VCC1=24V, VCC2=5.0V

Parameter Symbol Conditions min typ max unit

VCC2 supply current ICCO Forward or reverse operation 3.2 8 mA

FET diode forward voltage Vdf If=1A (RL=23Ω) 0.85 1.6 V

Output saturation voltage 1 Vsat1 RL=23Ω, F1, F2 0.15 0.22 V

Output saturation voltage 2 Vsat2 RL=23Ω, F3, F4+current detection

resistance 0.20 0.28 V

Output leak current IOL F1, F2, F3, and F4 OFF operation 50 µ A

Input high voltage VIH IN1, IN2, INH pins 3.5 V

Input low voltage VIL IN1, IN2, INH pins 0.6 V

Input current IIH IN1, IN2, INH pins, VIH=5V 0.10 0.20 0.40 mA

Current setting voltage Vref1 Between pins Vref1 and S.P 0.42 V

Note: A fixed-voltage power supply must be used.

Package Dimensionsunit:mm (typ)

29.5 3.3

0.4

1.0

5 .

1

2 4 .

0

9 .

0

2.0

0.5 2.9

1 12

11 2.0=22.0

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STK681-210-E

No. A1132-3/9

Derating Curve of Motor Current, IO, vs. STK681-210-E Operating Board Temperature, Tc

The motor current, IO, shown above represents the range of DC operation and chopping operation.The above graph shows performance when the overheating current control function (when pin 10 is connected to GND)

is inoperational. For IO characteristics when overheating current control is operational, see IO-Tc characteristics given

in the Technical Information.

Since Tc fluctuates due to the ambient temperature, Ta, the motor current value, and continuous or intermittent

operations of the motor current, always confirm this values using an actual set.

STK681-210-E Allowable Brake Current Range

IO - Tc

Operating Substrate Temperature, Tc- °C

M o t o r c u r r e n t , I O

- A

6

1

00 8020 40 60 1007010 30 50 90 110

ITF02521

4

5

3

2

9

2

1

0

5

6

8

7

4

3

1.0 7532 10 7532 100 7532 1000

IOB - t

Conduction Time, t - ms

B r a k e C u r r e n t , I O B - A

ITF02494

Tc=25°C

70°C80°C

90°C

105°C

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STK681-210-E

No. A1132-4/9

Block Diagram

Sample Application Circuit

8

9

1

7

INH

IN1

OUT1 VCC1 OUT2

0.08Ω

82kΩ

7.5kΩ RS

F1 F2

F3 F4

IN2

VCC2

GND

2 S.P

11 Vref1

10 Vref2

345

NC

6

12

ITF02475

Currentcontrol Overheating

current control

VCC2=5V

IN1

IN2

INH

9

7

8

12

10

11

GND

VCC1=24V

OUT2

NC

S.P

OUT1

Vref1

Vref2

4

5

3

6

1

2+C2

10µF/50V

+C1

47µF to /50V

STK681-210-E

CCW

CW

ITF02474

Motor

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STK681-210-E

No. A1132-5/9

Motor Drive Conditions (H: High-level input; L: Low-Level Input) IN1 IN2 INH Remarks

Stop 1 (standby) H H H or L When motor is not rotating

H H H

H L H

Stop 2 (supply power turned off by input during

motor rotation)

L H H

Stop signal applied during motor rotation

Forward (CW)H L L

Reverse (CCW) L H L

No input signal is needed that turns off the

upper- and lower-side drive devices when

switching the rotational direction.

Brake L L L GND side MOSFET ON

* IN1=IN2=H and INH=L are prohibited during motor rotation.

Notes

(1) Be sure to set the capacitance of the power supply bypass capacitor, C1, so that the ripple current of the capacitor,

which varies as motor current increases, falls within the allowed range.

(2) Although the Vref 2 pin is kept open, if connected to the GND or S.P pin, the overheating current control circuit

ceases to function.

(3) Fixed current chopping operations based on F1 and F2 are used for current control. The timing given below is used

for OUT1 or OUT2 voltage output and for F1 or F2 collector current.

OUT1 or OUT2

Output voltage

F1 or F2

Collector current

Motor current

30µs0A

GND

VCC1-Vsat1

IO peak (current setting value)

0A

IO peak (current setting value)

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STK681-210-E

No. A1132-6/9

(4) Sample Timing Diagram

I/O Functions of Each PinPin Name Pin No. Function

IN1 7 Input pin for turning F1 and F3 ON and OFF

At high level, F1: ON and F3: OFF; at low level F1: OFF and F3: ON

IN2 8 Input pin for turning F2 and F4 ON and OFF

At high level, F2: ON and F4: OFF; at low level,F2: OFF and F4: ON

INH 12 Pin for turning F1 and F2 OFF; At high level F1 and F2: OFF

This pin is usually low or open.

OUT1 5 This pin connects to the motor and outputs source/sync current depending on conditions at IN1 and IN2.

OUT2 3 This pin connects to the motor and outputs source/sync current depending on conditions at IN1 and IN2.

Vref1 11 A voltage of 0.42V at Tc=25°C results for the current set voltage used in fixed current operations.

A voltage of 0.42V at Tc=25°C results for Vref1.

0.42V is set by connecting 82kΩ and 7.5kΩ in series.

Current detection resistance is Rs=0.08Ω. Set using IO peak=Vref1÷Rs.

Vref2 10 Be sure to usually leave this pin open.

The overheating control circuit can be made to stop operating by connecting this pin to the GND or S.P pin.

S.P 2 Vref1 voltage can be lowered by connecting a resistor between the Vref1 and S.P pins.

IN1

IN2

INH

IN1

IN2

INH

Stop 1

Forward

rotation

BrakeStop 1 Reverse

rotation

Brake Forward

rotation

Reverse

rotation Stop 2

Stop 1

Forward

rotationBrake Reverse

rotationStop 2 Forward

rotation

Reverse

rotation Brake

Stop 1

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STK681-210-E

No. A1132-7/9

Technical Information(1) Substrate temperature rise , ∆Tc (no heat sink) - Internal average power dissipation, PdAV

(2) Internal average power dissipation, Pd, in the DC current-motor current, IO, characteristics (typ values for Pd)

(3) Overheating current control characteristics

Overheating current control functions to prevent driver failure if a motor lock malfunction occurs.

80

20

10

00 1.0 2.0 3.0 3.50.5 1.5 2.5

∆Tc - Pd

Hybrid IC internal average power dissipation, Pd - W

S u b s t r a t e t e m p e r a t u r e r i s e , ∆

T c - ° C

ITF02495

50

70

60

40

30

10

9

8

2

1

00 541 2 3

ITF02522

5

7

6

4

3

Pd - IO

Motor current, IO - A

I n t e r n a l a

v e r a g e p o w e r d i s s i p a t i o n ,

P d - W

T c = 1

0 5 ° C

2 5 ° C

VCC1=24V

6

1

0

3

4

5

2

IO - Tc

Operating substrate temperature, Tc- °C

A v e r a g e c u r r e n t , I O

- A

Load 2Ω+3mH

0 8020 40 60 1007010 30 50 90 120110

ITF02523

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STK681-210-E

No. A1132-8/9

0.1

1.0 102 3 5 7 1002 3 5 7

ITF02530

1.0

10

2

3

5

7

2

3

5

7

2

3

5

7

100

300

250

50

0

0 3.0 4.0 5.01.0 2.0 2.5 3.5 4.50.5 1.5

ITF02528

150

200

100

0.1

1.0 102 3 5 7 1002 3 5 7

ITF02529

1.0

10

2

3

5

7

2

3

5

7

2

3

57

100

25

5

00 3 4 51 2

ITF02526

15

20

10

25

5

00 3 4 51 2

ITF02527

15

20

10

0.4

0.2

0

ITF02524

1.0

1.2

1.4

0.8

0.6

0 3 4 51 2 0 3 4 51 2

0.4

0.2

0

ITF02525

1.0

1.2

0.8

0.6

Vdf - If

If - A

V d f - V

VOUT - VIH

7pin-GND voltage, VIH - V

5 p i n - G N D v o l t a g e , V O U T

- V

V d f ( F 1,

F 2 )

Vd f ( F 3, F 4 )

Tc=25°C

Vsat1, Vsat2 - IO

IO - A

V s a t 1 , V

s a t 2 - V

V s a t 1

V s a t 2

VCC1=24V,

VCC2=5.0V,

Tc=25°C

VCC1=24V,

VCC2=5.0V,

Tc=25°C,

OUT1-OUT2,

Pin load=1k Ω,

8pin=Low

IIH - VIH

7, 8,12pin-GND voltage, VIH - V

I I H - µ A

VCC1=24V,VCC2=5.0V,

Tc=25°C

VOUT - VIH

12pin-GND voltage, VIH - V

5 p i n - G N D v o l t a g e , V O U T

- V

VCC1=24V,

VCC2=5.0V,

Tc=25°C,

OUT1-OUT2,

Pin load=1k Ω,8pin=Low

7pin=High

F1,F2 - A.S.O

-VDS - V

- I D - A

Tc=25°C,

Tj=150°C,

Single pulse

1 0 0 µ s

1 m s

1 0 m s

1 s

F3, F4 - A.S.O

VDS - V

I D - A

Tc=25°C,

Tj=150°C,

Single pulse

1 0 0 µ s

1 m s

1 0 m s 1 0 0 m s 1 s

1 0 0 m s

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STK681-210-E

No. A1132-9/9

Input Pin Configurations

PS

This catalog provides information as of July, 2008. Specifications and information herein are subjectto change without notice.

SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using

products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition

ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.

products described or contained herein.

SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all

semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or

malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise

to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt

safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not

limited to protective circuits and error prevention circuits for safe design, redundant design, and structural

design.

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with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third

party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's

intellectual property rights which has resulted from the use of the technical information and products mentioned

above.

Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed

for volume production.

Any and all information described or contained herein are subject to change without notice due to

product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the

SANYO Semiconductor Co.,Ltd. product that you intend to use.

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without the prior written consent of SANYO Semiconductor Co.,Ltd.

11

or

IN1, IN2 INH

127

8

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