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Fabricante

3973

DUAL DMOS FULL-BRIDGE MICROSTEPPING PWM MOTOR DRIVER

Allegro MicroSystems 

3973

DUAL DMOS FULL-BRIDGE

MICROSTEPPING PWM MOTOR DRIVER

ELECTRICAL CHARACTERISTICS at TA = +25°C, VBB = 35 V, VDD = 5.0 V, VS = 0.5 V,

fPWM < 50 kHz (unless otherwise noted).

Limits

Characteristic

Symbol Test Conditions

Min. Typ. Max.

Load Supply Voltage Range

VBB

Operating

During sleep mode

15 — 35

0

— 35

Logic Supply Voltage Range

Load Supply Current

VDD

Operating

IBB

fPWM < 50 kHz

Operating, outputs disabled

4.5 5.0 5.5

—

—

8.0

—

—

6.0

Sleep or idle mode

—

—

20

Logic Supply Current

IDD

fPWM < 50 kHz

Outputs off

—

—

12

—

—

10

Idle mode (D0 = 1, D18 = 0)

—

—

1.5

Sleep mode

—

— 100

Output Drivers

Output Leakage Current

Output On Resistance

Body Diode Forward Voltage

Control Logic

IDSS

rDS(on)

VF

VOUT = VBB

VOUT = 0 V

Source driver, IOUT = –1.0 A

Sink driver, IOUT = 1.0 A

Source diode, IF = 1.0 A

Sink diode, IF = 1.0 A

— <1.0 50

— <-1.0 -50

— 0.54 0.60

— 0.54 0.60

—

—

1.2

—

—

1.2

Logic Input Voltage

Logic Input Current

OSC Input Frequency Range

VIN(1)

VIN(0)

IIN(1)

IIN(0)

fOSC

VIN = 2.0 V

VIN = 0.8 V

Divide by one

(D0 =1, D13 = 0, D14 = 1)

2.0 —

—

—

—

0.8

— <1.0 20

— <-2.0 -20

2.5 — 6.0

OSC Input Duty Cycle

—

40 — 60

Input Hysterisis

∆VIN

0.20 — 0.40

Units

V

V

V

mA

mA

µA

mA

mA

mA

µA

µA

µA

Ω

Ω

V

V

V

V

µA

µA

MHz

%

V

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