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Semiconductor Components Industries, LLC, 2013
Dec, 2013
http://onsemi.com
STK681-360-E
Overview
The STK681-360-E is a hybrid IC for use in PWM current control forward/reverse DC motor driver with brush.
Function
Allows forward, reverse, and brake operations in accordance with the external input PWM signal.
5.8A peak startup output current and 8A peak brake output current.
Built-in current detection resistor (0.05Ω : resistor tolerance 2%) and supports constant-current control.
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
bsolute Maximum Ratings at Ta = 25C
Parameter
Symbol
Conditions
Ratings
unit
Maximum supply voltage 1
Vcc1 max
Vcc2=0V
52
V
Maximum supply voltage 2
Vcc2 max
No signal
-0.3 to +7.0
V
Input voltage
V
IN
max
Logic input pins
-0.3 to +7.0
V
Output current1
I
O
max
V
DD
=5.0V, DC current
5.8
A
Brake current
I
O
B max
V
DD
=5.0V, square wave current,
operating time 60ms (single pulse ,low side brake)
8
A
Allowable power dissipation
PdPK max
No heat sink
3.1
W
Operating substrate temperature
Tc
Metal surface temperature of the package
105
C
Junction temperature
Tj max
150
C
Storage temperature
Tstg
-40 to +125
C
Notes
*1 Refer to the graph for each conduction-period tolerance range for the output current and brake current.
*2 PWM pin (14pin) is active Low.
*3 Io1, Io2, Io3 connect Vref2 pin to GND and a current value when over-heating current control does not work
Thick Film Hybrid IC
Forward/Reverse Motor Driver
Application Note
Stresses exceeding MaximumRatings may damage the device. MaximumRatings 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.
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