SLA7042 查看數據表（PDF） - Allegro MicroSystems

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SLA7042

MICROSTEPPING, UNIPOLAR PWM, HIGH-CURRENT MOTOR CONTROLLER/DRIVER

Allegro MicroSystems 

SLA7042M AND SLA7044M

MICROSTEPPING,

UNIPOLAR PWM, HIGH-CURRENT

MOTOR CONTROLLER/DRIVERS

DC ELECTRICAL CHARACTERISTICS at TA = +25°C, VDD = 5 V unless otherwise noted.

Limits

Characteristic

FET Leakage Current

FET ON Voltage

Symbol

IDSS

VDS(ON)

FET ON Resistance

rDS(on)

Body Diode Forward Voltage VSD

Control Supply Voltage

Control Supply Current

Logic Input Voltage

Logic Input Current

REF/ENABLE Input Voltage

VDD

IDD

VIN(1)

VIN(0)

IIN(1)

IIN(0)

VREF/EN

REF/ENABLE Input Current

Step Reference

Current Ratio

IREF/EN

SRCR

First Bit Entered (X) = Phase

Second Bit Entered = LSB

Last Bit Entered = MSB

Test Conditions

VDS = 100 V

SLA7042M, IOUT = 1.2 A

SLA7044M, IOUT = 3 A

SLA7042M, IOUT = 1.2 A

SLA7044M, IOUT = 3 A

SLA7042M, IOUT = –1.2 A

SLA7044M, IOUT = –3 A

Operating

Each controller, VDD = 5.5 V

VIN(1) = VDD

VIN(0) = 0

DATA, CLOCK, STROBE, and OUT Enabled

DATA, CLOCK, STROBE, and OUT Disabled

0 V ≤ VREF/EN ≤ 5 V

DATA Input = 000X

DATA Input = 001X

DATA Input = 010X

DATA Input = 011X

DATA Input = 100X

DATA Input = 101X

DATA Input = 110X

DATA Input = 111X

Min Typ Max

—

—

4.0

—

—

800

—

—

855

—

— 0.67

—

— 0.285

—

—

1.2

—

—

1.6

4.5

5.0

5.5

—

—

7.0

3.5

—

—

—

—

1.5

—

—

1.0

—

— –1.0

0.4

—

2.5

VDD - 1

—

—

—

—

±1.0

—

0

—

—

20

—

—

40

—

—

55.5 —

—

71.4 —

—

83

—

—

91

—

—

100

—

NOTE: Negative current is defined as coming out of (sourcing) the specified device pin.

Units

mA

mV

mV

Ω

Ω

V

V

V

mA

V

V

µA

µA

V

V

µA

%

%

%

%

%

%

%

%

TYPICAL AC CHARACTERISTICS at TA = +25°C, VDD = 5 V, IOUT = 1 A, Logic Levels are VDD and

Ground

PWM OFF Time

Output RiseTime

tr

Output Fall Time

tf

Strobe-to-Output Switching Time tpd

DATA Input = 001X ................................................................. 7 µs

DATA Input = 010X ................................................................. 7 µs

DATA Input = 011X ................................................................. 9 µs

DATA Input = 100X ................................................................. 9 µs

DATA Input = 101X ................................................................. 9 µs

DATA Input = 110X ................................................................ 11 µs

DATA Input = 101X ................................................................ 11 µs

10% to 90% ........................................................................... 0.5 µs

90% to 10% ........................................................................... 0.1 µs

50% to 50% ........................................................................... 0.7 µs

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