98

ICs

STA7130MPR/7131MPR/7132MPR

■Absolute Maximum Ratings

Parameter

Symbol

Ratings

Unit

Remarks

Motor Supply Voltage

46

V

Driver Supply Voltage

46

V

Output Current

Io

*1

A

Mode F

Logic Input Voltage

–0.3 to +6

V

REF Input Voltage

–0.3 to +6

V

Sense Voltage

±0.5

V

Excluding tw<1µs

Power Dissipation

PD

3.5

W

12.5

Junction Temperature

+150

°C

Operating Ambient Temperature

–20 to +80

°C

Storage Temperature

–30 to +150

°C

■Features

• Lineup of built-in current sense resistor and

built-in protection circuit-type

44 V normal operating range

• Maximum output currents: 1 A, 1.5 A, and 2 A

• Supporting the clock-input-method micro-step

drive (built-in sequencer)

• Self-excitation PWM current control with fixed

off time

• Synchronous PWM chopping function

prevents motor noise in Hold mode

• Sleep mode for reducing the IC input current

in stand-by state

• ZIP type 18-pin molded package (STA

package)

*1: Output current value may be limited for the STA7130MPR (1.0 A), 7131MPR (1.5 A), and 7132MPR (2.0 A),

depending on the duty ratio, ambient temperature, and heating conditions.

■Recommended Operating Conditions

Parameter

Motor Supply Voltage

Driver Supply Voltage

Case Temperature

Symbol

Unit

V

V

°C

Rating

min.

max.

44

10

44

85

Remarks

Temperature at Pin-10 Lead (without Fin)

Parameter

Symbol

Unit

Ratings

min.

max.

typ.

Conditions

10

3

0.85

0.4

0.24

1.1

1.2

2.1

0.7

0.9

5.5

0.75

0.8

5

Fclock

ModeF

ModeE

ModeC

ModeA

Mode8

Mode6

Mode4

Mode2

ton(min)

toff1

toff2

toff3

Main Supply Current

Output MOSFET Breakdown Voltage

Output MOSFET ON Resistance

Output MOSFET Diode Forward Voltage

Maximum Clock Frequency

Logic Input Voltage

Logic Input Current

REF Input Voltage

REF Input Current

Sense Voltage

Sleep-Enable Recovery Time

Switching Time

Sense Resistance

Overcurrent Sense Voltage

Overcurrent Sense Current

Vocp

÷Rs

Thermal Protection Temperature

Logic Output Voltage

Logic Output Current

Step Reference Current Ratio

PWM Minimum ON Time

PWM OFF Time

100

250

2.3

0

2.0

100

0.65

0.7

0.25

0.18

0.85

0.95

0.95

±10

±10

±10

1.4

0.7

0.305

0.205

0.155

0.7

2.3

3.5

4.5

125

100

98.1

92.4

83.1

70.7

55.5

38.2

19.5

1.5

11.5

8.5

7

In operation

Sleep 1 and Sleep 2 modes

STA7130MPR

STA7131MPR

STA7132MPR

STA7130MPR

STA7131MPR

STA7132MPR

When Clock Duty = 50%

Output OFF (Sleep 1)

When step reference current ratio is 100%

Sleep1&Sleep2

Clock

→ Out ON

Clock

→ Out OFF

STA7130MPR

STA7131MPR

STA7132MPR

When motor coil shorts out

STA7130MPR

STA7131MPR

STA7132MPR

Rear of case (at the saturation temperature)

VREF=0.1V to 0.9V

Mode 8 to F

Mode 4 to 6

Mode 2

mA

mA

V

Ω

V

kHz

V

µA

V

µA

V

µS

µS

µS

Ω

V

A

°C

V

mA

%

%

%

%

%

%

%

%

µS

µS

µS

µS

■Electrical Characteristics

2-Phase to 2W 1-2 Phase Excitation Support, Built-in Sequencer

1-2-1 2-Phase Stepper Motor Unipolar Driver ICs

*The direction in which current flows out of the device is regarded as negative.