3967
MICROSTEPPPING DRIVER
WITH TRANSLATOR
ELECTRICAL CHARACTERISTICS at T
A
= +25°C, V
BB
= 30 V, V
CC
= 3.0 V to 5.5V (unless otherwise
noted)
Limits
Characteristic
Control Logic (cont’d)
Mixed Decay Trip Point
Ref. Input Voltage Range
Reference Input Impedance
Gain (G
m
) Error
(note 3)
Thermal Shutdown Temp.
Thermal Shutdown Hysteresis
UVLO Enable Threshold
UVLO Hysteresis
Logic Supply Current
TJ
∆T
J
V
UVLO
∆V
UVLO
I
CC
Outputs enabled
Outputs off
Sleep mode
Increasing VCC
PFDH
PFDL
V
REF
Z
REF
E
G
VREF = 2 V, Phase Current = 38.37% †
VREF = 2 V, Phase Current = 70.71% †
VREF = 2 V, Phase Current = 100.00% †
Operating
–
–
1.0
120
–
–
–
–
–
2.45
0.05
–
–
–
0.6V
CC
0.21V
CC
–
160
–
–
–
165
15
2.7
0.10
50
–
–
–
–
V
CC
200
±10
±5.0
±5.0
–
–
2.95
–
65
9.0
20
V
V
V
kΩ
%
%
%
°C
°C
V
V
mA
mA
µA
Symbol
Test Conditions
Min.
Typ.
Max.
Units
* 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. E
G
= ([V
REF
/8] – V
SENSE
)/(V
REF
/8)
4
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Worcester, Massachusetts 01615-0036 (508) 853-5000
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
