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LS8297 Datasheet(PDF) 3 Page - LSI Computer Systems

Part # LS8297
Description  STEPPER MOTOR CONTROLLER
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Manufacturer  LSI [LSI Computer Systems]
Direct Link  http://www.lsicsi.com
Logo LSI - LSI Computer Systems

LS8297 Datasheet(HTML) 3 Page - LSI Computer Systems

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ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VS
Supply Voltage
10
V
Vi
Input Signals
7
V
TSTG, TJ
Storage and Junction Temperatures
-40 to +150
°C
ELECTRICAL CHARACTERISTICS: (Refer to Block Diagram, Figure 2, and Timing Diagram, Figure 3)
TA = +25°C, VDD
= +5V unless otherwise specified.
Parameter
Symbol
Minimum
Typical
Maximum
Unit
Condition
(
Pin 12)
Supply Voltage
VDD
4.75
-
7
V
-
Quiscent Supply Current
IDD
-
300
400
uA
Outputs floating
(
Pins 11, 17, 18, 19, 20)
Input Voltage Low
VIL
0
-
0.75
V
-
Input Voltage High
VIH
2
-
VDD
V
-
Input Current
II
-
-
50
nA
VI = VIL
Input Current
II
-
-
50
nA
VI = VIH
(
Pin 10)
Enable Input Voltage Low
VENL
0
-
1.3
V
-
Enable Input Voltage High VENH
2
-
VDD
V
-
Enable Input Current
IEN
-
-
50
nA
VEN = VENL
Enable Input Current
IEN
-
-
50
nA
VEN = VENH
(
Pins 4, 6, 7, 9)
Phase Output Voltage Low VOL
-
-
0.5
V
IO = -10mA
Phase Output Voltage High VOH
4.0
-
-
V
IO = 5mA
(
Pins 5, 8)
Inhibit Output Voltage Low VInhL
-
-
0.5
V
IO = -10mA
Inhibit Output Voltage High VInhH
4.0
-
-
V
IO = 5mA
(
Pin 3)
Leakage Current
ILeak
-
-
1
uA
VO = VDO = 7V
Saturation Voltage
VSat
-
-
0.4
V
I = 5mA
(
Pins 13, 14, 15)
Comparators Offset Voltage VOff
-
5
-
mV
VREF = 1V
Comparator Bias Current
IO
100
-
10
uA
-
(
Pin 15)
Input Reference Voltage
VREF
0
-
3
V
-
Input Current
IREF
-
-
8
uA
VREF = 3V
Clock Time Step
tstp
0.5
-
-
us
-
Pulse Width
Set up time
tS
1
-
-
us
-
Hold time
tH
4
-
-
us
-
Reset time
tR
1
-
-
us
-
Reset to Step delay
tRStp
1
-
-
us
-
(
Pin 16)
Oscillator:
Sawtooth Low
VSOL
-
2.1
-
V
-
Sawtooth High
VSOH
-
3.65
-
V
-
Frequency
fOSC
-
30
-
kHz
R = 22kΩ, C = 3.3nF
8297-040109-3


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