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PDF MAS9012 Data sheet ( Hoja de datos )
| Número de pieza | MAS9012 | |
| Descripción | Stepper Motor Driver IC | |
| Fabricantes | MAS | |
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DA9012.001
25 August 2004
MAS9012
Stepper Motor Driver IC
• Supports Microstepping Movement
• Capable to Drive One to Four Motors
• Low Operating Voltage
DESCRIPTION
MAS9012 is a Miniature Stepper Motor Driver IC
with four different versions to drive one to four
motors of pointers in motorcycle and car
dashboards and other similar applications. It
features a microstepping function to allow smooth
movement of the motor shaft. One microstep
corresponds to an angular rotation of 1/12 degree
FEATURES
• Bipolar Stepper Motor Driver Outputs
• Drives One to Four Stepper Motors
• Microstepping Function
• Glitch Filters at All Inputs
• Low Operating Voltage
• TSSOP-16 and TSSOP-28 Packages
of the motor shaft. The actual precision of the
position is affected by the gear play of the motor.
The microstepping movement of the motor shaft is
achieved by converting a pulse sequence into a
current level sequence sent to the stepper motor
coils.
APPLICATIONS
• Motorcycle Dashboards
• Car Dashboards
• Nautical Instrumentation
• Miniature Stepper Motors in Appliances
1 (12)
1 page  
DA9012.001
25 August 2004
ELECTRICAL CHARACTERISTICS...
◆ Digital Inputs
Parameter
Input High Voltage
Input Low Voltage
Input frequency
TA = -40°C to +85°C, typical values at TA = +25°C, VDD=5.0 V, unless otherwise specified
Symbol
Conditions
Min
Typ
Max
Unit
VIH
VDD = 4.5…5.5V
80%
VDD
VIL
VDD = 4.5…5.5V
0%
VDD
fIN
100%
VDD
20%
VDD
15
V
V
kHz
Power Dissipation
TA = -40°C to +85°C, typical values at TA = +25°C, VDD=5.0 V, unless otherwise specified
Parameter
Symbol
Conditions
Min Typ Max Unit
Junction to Ambient Thermal RJA typical PC board mounting,
Resistance
still air, TSSOP package
100.4
°C/W
Maximum Power Dissipation
Pd
any ambient temperature,
TSSOP package
PdMAX
=
TJ(MAX) − TA
R JA
Note 1
W
Note 1: TJ(MAX) denotes maximum operating junction temperature (+125°C), TA ambient temperature, and RJA junction-to-air thermal
resistance (+144°C/W).
Timing Characteristics
Parameter
Signal pulse width
Signal pulse width
Setup time to f(SCX)
XRESET release time to
f(SCX)
Symbol
tW
tS
tRR
TA = -40°C to +85°C, VDD = 5.0 V, unless otherwise specified
Conditions
High or low
High or low
High or low
Min Typ Max
450
100
100
Unit
ns
ns
ns
ns
Delay Timing Waveforms
FSCX
tW tS
FSCX
t RR
5 (12)
5 Page 
REEL SPECIFICATIONS (TSSOP16)
DA9012.001
25 August 2004
AD
Tape Slot for Tape Start
B
W2
CN
W1
2000 Components on Each Reel
Reel Material: Conductive, Plastic Antistatic or Static Dissipative
Carrier Tape Material: Conductive
Cover Tape Material: Static Dissipative
Carrier Tape
Cover Tape
End Start
Trailer
Components
Dimension
A
B
C
D
N
W1
(measured at hub)
W2
(measured at hub)
Trailer
Leader
Weight
Min
1.5
12.80
20.2
50
12.4
160
390,
of which minimum 160
mm of empty carrier tape
sealed with cover tape
Leader
Max
330
13.50
14.4
18.4
1500
Unit
mm
mm
mm
mm
mm
mm
mm
mm
mm
g
11 (12)
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MAS9012.PDF ] | |
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