3967

MICROSTEPPPING DRIVER

WITH TRANSLATOR

115 Northeast Cutoff, Box 15036

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

4

noted)

Characteristic

Symbol

Test Conditions

Limits

Min.

Typ.

Max.

Units

Control Logic (cont’d)

Mixed Decay Trip Point

PFDH

–

–V

PFDL

–

–V

Ref. Input Voltage Range

Operating

1.0

–

V

Reference Input Impedance

120

160

200

kΩ

(note 3)

VREF = 2 V, Phase Current = 38.37% †

–

–

±10

%

VREF = 2 V, Phase Current = 70.71% †

–

–

±5.0

%

VREF = 2 V, Phase Current = 100.00% †

–

–

±5.0

%

Thermal Shutdown Temp.

TJ

–

165

–

°C

Thermal Shutdown Hysteresis

∆TJ

–15

–

°C

UVLO Enable Threshold

Increasing VCC

2.45

2.7

2.95

V

UVLO Hysteresis

0.05

0.10

–

V

Logic Supply Current

Outputs enabled

–

50

65

mA

Outputs off

–

–

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.