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A3983SLPTR-T

DMOS Microstepping Driver with Translator

Allegro MicroSystems 

A3983

DMOS Microstepping Driver with Translator

ELECTRICAL CHARACTERISTICS1 at TA = 25°C, VBB = 35 V (unless otherwise noted)

Characteristics

Output Drivers

Load Supply Voltage Range

Logic Supply Voltage Range

Output On Resistance

Body Diode Forward Voltage

Motor Supply Current

Logic Supply Current

Control Logic

Logic Input Voltage

Logic Input Current

Microstep Select 2

Input Hysteresis

Blank Time

Fixed Off-Time

Reference Input Voltage Range

Reference Input Current

Current Trip-Level Error3

Crossover Dead Time

Protection

Thermal Shutdown Temperature

Thermal Shutdown Hysteresis

UVLO Enable Threshold

UVLO Hysteresis

Symbol

Test Conditions

Min.

Operating

8

VBB

During Sleep Mode

0

VDD

Operating

3.0

RDSON

Source Driver, IOUT = –1.5 A

Sink Driver, IOUT = 1.5 A

–

–

VF

Source Diode, IF = –1.5 A

Sink Diode, IF = 1.5 A

–

–

fPWM < 50 kHz

–

IBB

Operating, outputs disabled

–

Sleep Mode

–

fPWM < 50 kHz

–

IDD

Outputs off

–

Sleep Mode

–

VIN(1)

VIN(0)

IIN(1)

IIN(0)

MS2

VHYS(IN)

tBLANK

tOFF

VREF

IREF

errI

tDT

× VIN = VDD 0.7

× VIN = VDD 0.3

OSC > 3 V

ROSC = 25 kΩ

VREF = 2 V, %ITripMAX = 38.27%

VREF = 2 V, %ITripMAX = 70.71%

VREF = 2 V, %ITripMAX = 100.00%

× VDD 0.7

–

–20

–20

–

150

0.7

20

23

0

–3

–

–

–

100

TJ

TJHYS

UVLO

UVHYS

VDD rising

–

–

2.35

0.05

Typ.2

–

–

–

0.350

0.300

–

–

–

–

–

–

–

–

–

–

<1.0

<1.0

100

300

1

30

30

–

0

–

–

–

475

165

15

2.7

0.10

Max.

35

35

5.5

0.450

0.370

1.2

1.2

4

2

10

8

5

10

–

× VDD 0.3

20

20

–

500

1.3

40

37

4

3

±15

±5

±5

800

–

–

3

–

Units

V

V

V

Ω

Ω

V

V

mA

mA

μA

mA

mA

μA

V

V

μA

μA

kΩ

mV

μs

μs

μs

V

μA

%

%

%

ns

°C

°C

V

V

1Negative current is defined as coming out of (sourcing from) the specified device pin.

2Typical data are for initial design estimations only, and assume optimum manufacturing and application conditions. Performance may vary for

individual units, within the specified maximum and minimum limits.

× 3errI = (ITrip – IProg ) ⁄ IProg , where IProg = %ITripMAX ITripMAX.

Allegro MicroSystems, Inc.

3

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

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