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PDF STK672-642AN-E Data sheet ( Hoja de datos )
| Número de pieza | STK672-642AN-E | |
| Descripción | 2-phase Stepper Motor Driver | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Ordering number : ENA2277A
STK672-642AN-E
Thick-Film Hybrid IC
2-phase Stepper Motor Driver
http://onsemi.com
Overview
The STK672-642AN-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 overcurrent detection function, overheat detection function (output current OFF).
FAULT signal (active low) is output when overcurrent or overheat is detected.
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.
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 (0.089Ω: 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 STK672-640AN/-630AN/-632AN-E.
Specifications
Absolute Maximum Ratings at Tc = 25C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage 1
Maximum supply voltage 2
Input voltage
Output current 1
Output current 2
Output current 3
Allowable power dissipation 1
Allowable power dissipation 2
Operating substrate temperature
Junction temperature
Storage temperature
Vcc max
VDD max
Vin max
IOP max
IOH max
IOF max
PdMF max
PdPK max
Tcmax
Tjmax
Tstg
No signal
No signal
Logic input pins
10μs 1 pulse (resistance load)
VDD = 5V, CLOCK 200Hz
16pin Output current
With an arbitrarily large heat sink. Per MOSFET
No heat sink
52
0.3 to 6.0
0.3 to 6.0
20
4.0
10
8.3
2.8
105
150
40 to 125
V
V
V
A
A
mA
W
W
°C
°C
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
ORDERING INFORMATION
See detailed ordering and shipping information on page 28 of this data sheet.
Semiconductor Components Industries, LLC, 2014
January, 2014 Ver. 2.2
12014HK/10914HK 018-13-0067 No.A2277-1/28
1 page  
STK672-642AN-E
Measurement Circuit
(The terminal which is not appointed is open. The measurement circuit of STK672-640AN-E is the
same as STK672-642AN-E.)
1. Vdf
24V
23Ω
926
12
10 4
17 5
13 3
1
15
14 STK672-
19 64xAN-E
16 18
V Vdf
GND
2. IILF,IILH,IILL,IIB
5V
IILF
5V
A
GND IILL
IIB
1V A
GND
12 9
10 4
17 5
13 3
15
1
14
16 STK672-
19 64xAN-E
18 2 6
3. Vsat
5V
CLOCK
5V
12 9
10 4
17 5
13 3
15 1
14 STK672-
19 64xAN-E
16 18 2 6
4. Icco, Ioave, fc,VOLF
Icco
5V
910
A
7.5K
12 9
10
17
13
4
5
3
15 1
14 STK672-
64xAN-E
19
16 18 2 6
1K VOLF
Ioave
1Ω
0.62mH
Ioave
fc
SW
Close SW at
mesurement of VOLF
24V
23Ω
V Vsat
GND
24V
＋
100μ
GND
No.A2277-5/28
5 Page 
2 phase excitation (MODE 2)
VDD
Power On Reset
(or RESETB)
MODE1
MODE2
CWB
CLOCK
ENABLE
FAO
FAB
FBO
FBB
1-2 phase excitation (MODE 2)
VDD
Power On Reset
(or RESETB)
MODE1
MODE2
CWB
CLOCK
ENABLE
FAO
FAB
FBO
FBB
STK672-642AN-E
No.A2277-11/28
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet STK672-642AN-E.PDF ] | |
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