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PDF STK681-320 Data sheet ( Hoja de datos )
| Número de pieza | STK681-320 | |
| Descripción | Forward/Reverse Motor Driver | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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www.DataSheet.co.kr
Ordering number : ENA0762A
STK681-320 Thick-Film Hybrid IC
Forward/Reverse Motor Driver
Overview
The STK681-320 is a hybrid IC for use in current control forward/reverse DC motor driver with brush.
Applications
• Office photocopiers, printers, etc.
Features
• Allows forward, reverse, and brake operations in accordance with the external input signal.
• 5.2A startup output current and 8A peak brake output current.
• Incorporating a current detection resistor (0.056Ω), fixed current control is possible.
• Obviate the need to design for the dead time in order to turn off the upper- and lower drive devices when switching
between the forward and reverse operation mode.
Specifications
Absolute maximum ratings at Tc = 25°C
Parameter
Maximum supply voltage 1
Maximum supply voltage 2
Input voltage
Output current
Brake current
Allowable power dissipation
Operating substrate temperature
Junction temperature
Storage temperature
Symbol
VCC1 max
VCC2 max
VIN max
IO max
IOB max
PdPK max
Tc max
Tj max
Tstg
Conditions
VCC2=0V
No signal
Logic input pins
VCC2=5.0V, DC current
VCC2=5.0V, square wave current, operating time 60ms
(single pulse)
No heat sink
Ratings
52
-0.3 to +7.0
-0.3 to +7.0
5.2
8
3.1
105
150
-40 to +125
unit
V
V
V
A
A
W
°C
°C
°C
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
62911HKPC 018-08-0008/70908HKIM No. A0762-1/10
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
STK681-320
Motor Drive Conditions (H: High-level input; L: Low-Level Input)
Stop 1 (standby)
Stop 2 (supply power turned off by input during
motor rotation)
IN1
H
H
H
IN2 INH
Remarks
H
H or L
When motor is not rotating
H H Stop signal that is applied when the motor is
L H running and used to turn off power.
Forward (CW)
LH
HL
Reverse (CCW)
LH
Brake
LL
* IN1=IN2=H and INH=L are prohibited during motor rotation.
H
L
L
L or H
No input signal is needed that turns off the
upper- and lower-side drive devices when
switching the rotational direction.
GND side MOSFET ON
Notes
(1) Be sure to set the capacitance of the power supply bypass capacitor, C1, so that the ripple current of the capacitor,
which varies as motor current increases, falls within the allowed range.
(2) Although the Vref2 pin is kept open, if connected to the GND or S.P pin, the overheating current control circuit
ceases to function.
(3) Fixed current chopping operations based on F1 and F2 are used for current control. The timing given below is used
for OUT1 or OUT2 voltage output and for F1 or F2 drain current.
OUT1 or OUT2
Output voltage
VCC1-Vsat1
GND
F1 or F2
Drain current
Motor current
50μs
IO peak (current setting value)
0A
IO peak (current setting value)
0A
(4) Do not connect the N.C pins shown in the internal block diagram or sample application circuit to a circuit pattern on
the PCB.
(5) This IC is not designed for use in an H-bridge driver for power supplies because the I/O response time of its GND
side driving device, required when switching the motor rotational direction, is several scores of microseconds.
It should be used only for DC motor drivers.
No. A0762-5/10
Datasheet pdf - http://www.DataSheet4U.net/
5 Page | ||
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| PDF Descargar | [ Datasheet STK681-320.PDF ] | |
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