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  ON Semiconductor Electronic Components Datasheet  

STK672-640CN-E Datasheet

2-phase Stepper Motor Driver

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STK672-640CN-E pdf
Ordering number : ENA2317
STK672-640CN-E
Thick-Film Hybrid IC
2-phase Stepper Motor Driver
http://onsemi.com
Overview
The STK672-640CN-E is a hybrid IC for use as a unipolar, 2-phase stepper motor driver with PWM current control.
Applications
Office photocopiers, printers, etc.
Features
Built-in motor terminal open detection function(output current OFF).
There is a terminal to coordinate motor terminal open detection current.
Built-in overcurrent detection function, overheat detection function (output current OFF).
FAULT1 signal (active low) is output when any of motor terminal open, overcurrent or overheat is detected.
The FAULT2 signal is used to output the result of activation of protection circuit detection at 3 levels.
Built-in power on reset function.
The motor speed is controlled by the frequency of an external clock signal.
2 phase or 1-2 phase excitation switching function.
Using either or both edges of the clock signal switching function.
Phase is maintained even when the excitation mode is switched.
Rotational direction switching function.
Supports schmitt input for 2.5V high level input.
Incorporating a current detection resistor (0.089: resistor tolerance 2%), motor current can be set using two
external resistors.
The ENABLE pin can be used to cut output current while maintaining the excitation mode.
With a wide current setting range, power consumption can be reduced during standby.
No motor sound is generated during hold mode due to external excitation current control.
Supports compatible pins with STK672-630CN-E.
Specifications
Absolute Maximum Ratings at Tc = 25C
Parameter
Symbol
Conditions
Maximum supply voltage 1
Maximum supply voltage 2
Input voltage
VCC max
VDD max
Vin max
ENABLE=GND
No signal
Logic input pins
Output current 1
IOP max
10μs 1 pulse (resistance load)
Output current 2
Output current 3
Output current 4
IOH max1
IOH max2
IOF max
VDD = 5V, CLOCK 200Hz
VDD = 5V, CLOCK 200Hz, VCC29V
16pin Output current
Allowable power dissipation 1
PdMF max
With an arbitrarily large heat sink. Per MOSFET
Allowable power dissipation 2
PdPK max
No heat sink
Operating substrate temperature Tcmax
Junction temperature
Tjmax
Storage temperature
Tstg
Ratings
50
0.3 to 6.0
0.3 to 6.0
20
4.0
4.5
10
8.3
3.1
105
150
40 to 125
Unit
V
V
V
A
A
A
mA
W
W
°C
°C
°C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed,
damage may occur and reliability may be affected.
ORDERING INFORMATION
See detailed ordering and shipping information on page 31 of this data sheet.
Semiconductor Components Industries, LLC, 2014
March, 2014 Ver. 2.2
31814HK 018-14-0004 No.2317-1/31


  ON Semiconductor Electronic Components Datasheet  

STK672-640CN-E Datasheet

2-phase Stepper Motor Driver

No Preview Available !

STK672-640CN-E pdf
STK672-640CN-E
Allowable Operating Ranges at Tc=25C
Parameter
Operating supply voltage 1
Operating supply voltage 2
Input high voltage
Input low voltage
Symbol
VCC
VDD
VIH
VIL
Output current 1
IOH1
Output current 2
IOH2
Output current 3
IOH3
Output current 4
CLOCK frequency
Recommended operating
substrate temperature
Recommended Vref range
IOH4
fCL
Tc
Vref
Conditions
With signals applied
With signals applied
Pins 10, 12, 13, 14, 15, 17, VDD=55%
Pins 10, 12, 13, 14, 15, 17, VDD=55%
Tc=105C, CLOCK200Hz,
Continuous operation, duty=100%
Tc=80C, CLOCK200Hz,
Continuous operation, duty=100%,
See the motor current (IOH) derating curve
Tc=105C, CLOCK200Hz, VCC29V
Continuous operation, duty=100%
See the motor current (IOH) derating curve
Tc=80C, CLOCK200Hz, VCC29V
Continuous operation, duty=100%,
See the motor current (IOH) derating curve
Minimum pulse width: at least 10s
No condensation
Tc=105C
Ratings
0 to 46
55%
2.5 to VDD
0 to 0.8
3.0
unit
V
V
V
V
A
3.3 A
3.5 A
3.8 A
0 to 50
0 to 105
0.14 to 1.31
kHz
C
V
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended
Operating Ranges limits may affect device reliability.
Electrical Characteristics at Tc=25C, VCC=24V, VDD=5.0V *1
Parameter
Symbol
Conditions
min typ max unit
VDD supply current
Output average current *2
ICCO
Ioave
Pin 9 current, ENABLE=Low
R/L=1/0.62mH in each phase
0.519
5.0
0.625
8.0
0.731
mA
A
FET diode forward voltage
Output saturation voltage
Input high voltage
Control
Input pin
Input low voltage
5V level input current
GND level input current
FAULT 1
pin
Output low voltage
5V level leakage current
FAULT2 opened motor pin
detection output voltage
FAULT 2 FAULT2 Overcurrent detection
pin output voltage
FAULT2 Overheat detection
output voltage
Vref input bias current
PWM frequency
Vdf
Vsat
VIH
VIL
IILH
IILL
VOLF
IILF
VOF1
VOF2
VOF3
IIB
fc
If=1A (RL=23)
RL=23
Pins 10, 12, 13, 14, 15, 17
Pins 10, 12, 13, 14, 15, 17
Pins 10, 12, 13, 14, 15, 17=5V
Pins 10, 12, 13, 14, 15, 17=GND
Pin 16 (IO=5mA)
Pin 16 =5V
Pin 8 (when all protection functions have
been activated)
Pin 19 =1.0V
2.5
0.3
0.0
2.4
3.1
29
0.83
0.20
50
0.25
0.01
2.5
3.2
45
1.5
0.33
VDD
0.8
75
10
0.5
10
0.2
V
V
V
V
A
A
V
A
2.6 V
3.5
1 A
61 kHz
Overheat detection temperature
TSD
Design guarantee
144 C
Drain-source cut-off current
IDSS
VDS=100V, Pins 2, 6, 9, 18=GND
1 A
Notes
*1: A fixed-voltage power supply must be used.
*2: The value for Ioave assumes that the lead frame of the product is soldered to the mounting circuit board.
*3: Maximum value of operating supply voltage 1 (Vcc) can not supply to STK672-6** series, depending on motor
current value. Refer to “8. Other usage notes ” of Technical data.
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be
indicated by the Electrical Characteristics if operated under different conditions.
No.2317-2/31


Part Number STK672-640CN-E
Description 2-phase Stepper Motor Driver
Maker ON Semiconductor
Total Page 30 Pages
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