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AT5519
Preliminary Product Information
Dual Full-Bridge Stepper Motor Driver
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
WWW: http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email: service@aimtron.com.tw
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Electrical Characteristics
(VCC=4.75~5.25V, VBB=28V,VREF=5.0V, TA=+25
0C, TJ≤+1500C)
Values
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Output Drivers (OUT
A or OUTB)
Motor Supply Voltage
VBB
10
-
28
V
V
OUT=VBB
-
-
50
μ
A
Output Leakage Current
I
CEX
V
OUT=0V
-
-
-50
μ
A
Output Sustaining Voltage V
CE(SUS) IOUT=±750mA,L=3.0mH
28
-
-
V
Sink Driver, I
OUT=±500mA
-0.4
0.6
V
Sink Driver, I
OUT=±750mA
-1.0
1.2
V
Source Driver, I
OUT=-500mA
-
1.1
1.4
V
Output Saturation Voltage V
CE(SAT)
Source Driver, I
OUT=-750mA
-
1.3
1.6
V
Clamp Diode Leakage
Current
I
R
V
R=28V
-
-
50
μ
A
Clamp Diode Forward
Voltage
V
F
I
F=750mA
-
1.6
2.0
V
I
BB(ON)
Both Bridges ON, no load
-
20
25
mA
Driver Supply Current
I
BB(OFF) Both Bridges OFF
-
5.0
10
mA
Control Logic
V
IN(1)
All Input
2.4
-
-
V
Input Voltage
V
IN(O)
All Input
-
-
0.8
V
V
IN=2.4V
-
-
20
μ
A
Input Current
I
IN(1)
V
IN=0.8V
-
-3.0
-200
μ
A
Reference Voltage Range
VREF Operating
1.5
-
7.5
V
I
0=I1=0.8V
9.5
10
10.5
I
0=2.4V, I1=0.8V
13.5
15
16.5
Current Limit
Threshold(at trip point)
V
REF/
V
COMPIN
I
0=0.8V, I1=2.4V
25.5
30
34.5
Thermal Shutdown
Temperature
T
J
-170
-
°C
Total Logic Supply
Current
I
CC(ON)
I
0=I1=0.8V, No Load
-
40
50
mA