A3967 Ver la hoja de datos (PDF) - Allegro MicroSystems

Número de pieza

componentes Descripción

Fabricante

A3967

Microstepping Driver with Translator

Allegro MicroSystems 

A3967

Microstepping Driver with Translator

ELECTRICAL CHARACTERISTICS (continued) at TA = +25°C, VBB = 30 V, VCC = 3.0 V to 5.5V (unless

otherwise noted)

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max. Units

Control Logic (cont’d)

Mixed Decay Trip Point

Ref. Input Voltage Range

PFDH

PFDL

VREF

Operating

–

0.6VCC

–

V

–

0.21VCC

–

V

1.0

–

VCC

V

Reference Input Impedance

Gain (Gm) Error

(note 3)

Thermal Shutdown Temp.

Thermal Shutdown Hysteresis

UVLO Enable Threshold

UVLO Hysteresis

Logic Supply Current

ZREF

120

EG

VREF = 2 V, Phase Current = 38.37% †

–

VREF = 2 V, Phase Current = 70.71% †

–

VREF = 2 V, Phase Current = 100.00% †

–

TJ

–

∆TJ

–

VUVLO Increasing VCC

2.45

∆VUVLO

0.05

ICC

Outputs enabled

–

Outputs off

–

160

–

–

–

165

15

2.7

0.10

50

–

200

kΩ

±10

%

±5.0

%

±5.0

%

–

°C

–

°C

2.95

V

–

V

65

mA

9.0

mA

Sleep mode

–

–

20

μA

* Operation at a step frequency greater than the specified minimum value is possible but not warranteed.

† 8 microstep/step operation.

NOTES: 1. Typical Data is for design information only.

2. Negative current is defined as coming out of (sourcing) the specified device terminal.

3. EG = ([VREF/8] – VSENSE)/(VREF/8)

Allegro MicroSystems, Inc.

4

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

Share Link: