Ordering number : ENA1929A
STK681-352-E
Overview
Thick-Film Hybrid IC
Forward/Reverse Motor Driver
The STK681-352-E 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.
•
8A peak startup output current and 12A peak brake output current.
•
On-chip output short-circuit detection function.
•
Reduced voltage detection function (15V) for a motor supply voltage.
•
Connecting an external current detection resistor allows overcurrent detection and peak current control in the
PWMoperation mode.
•
Obviate the need to design for the dead time in order to turn off the upper- and lower drive devices when
switchingbetween the forward and reverse operation mode.
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.
70611HKPC 018-10-0042/30211HKPC No.A1929-1/14
STK681-352-E
Specifications
Absolute Maximum Ratings
at Tc = 25°C
Parameter
Maximum supply voltage
Input voltage
Output current 1
Output current 2
Output current 3
Brake current
Allowable power dissipation
Operating substrate temperature
Junction temperature
Storage temperature
Symbol
VCC max
VIN max
IO1 max
IO2 max
IO3 max
IOB max
PdPK max
Tc
Tj max
Tstg
Logic input pins
DC current
Pulse current: 10ms
Pulse current: 16μs
VDD=5.0V, square wave current, operating time 15ms
(single pulse, low side brake)
No heat sink
Metal surface temperature of the package
Conditions
Ratings
38
-0.3 to +6.0
6.4
8
24
12
2.8
-20 to +105
150
-40 to +125
unit
V
V
A
A
A
A
W
°C
°C
°C
Allowable Operating Ranges
at Ta=25°C
Parameter
Operating supply voltage
Input voltage
Output current 1
Output current 2
Brake current
Symbol
VCC
VIN
IO1
IO2
IOB
DC current, Tc=80°C
DC current, Tc=105°C
Square wave current, operating time 2ms,
Low side brake,Tc=105°C
With signals applied
Conditions
Ratings
18 to 29
0 to 5.5
4.6
3.8
12
unit
V
V
A
A
A
Refer to the graph for each conduction-period tolerance range for the output current and brake current.
Electrical Characteristics
at Tc=25°C, VCC=24V
Parameter
VCC supply current
FET diode forward voltage
Output saturation voltage 1
Output saturation voltage 2
Output leak current
Input high voltage
Input low voltage
High-level input current
Low-Level Input current
Overcurrent detection voltage
Internal PWM frequency
Overheat detection temperature
Symbol
ICCO
Vdf
Vsat1
Vsat2
IOL
VIH
VIL
IILH
IILL
VOC
fc
TSD
Design guarantee
Conditions
ENABLE=GND, IN1=IN2=3.3V
If=1A (RL=23Ω)
RL=23Ω, F1, F2
RL=23Ω, F3, F4
F1, F2, F3, and F4 OFF operation
IN1, IN2, ENABLE pins
IN1, IN2, ENABLE pins
IN1, IN2, ENABLE pins, VIH=3.3V
IN1, IN2, ENABLE pins, VIL=GND
Between pins Vref1 and S.P
32
0.48
46
144
62
33
2.5
0.8
50
10
min
typ
9.3
0.76
140
50
max
11
1.4
200
85
50
unit
mA
V
mV
mV
μA
V
V
μA
μA
V
kHz
°C
Note: A fixed-voltage power supply must be used.
No.A1929-2/14
STK681-352-E
Package Dimensions
unit:mm (typ)
24.2
(18.4)
(R1.47)
4.5
(11.0)
14.4
1
19
(3.5)
11.0
1.0
18 1.0=18.0
0.5
0.4
2.0
4.0
4.45
Derating Curve of Motor Current, IO, vs. STK681-352-E Operating Board Temperature, Tc
7
IO - Tc
DC
PWM(VCC=24V)
6
Motor current, IO - A
5
4
3
2
1
0
0
10
20
30
40
50
60
70
80
90
100
110
Operating Substrate Temperature, Tc-
°C
(The maximum PWM frequency is 50kHz.)
The PWM frequencies in the above graph indicate the ENABLE signal.
The same PWM IO derating curves as those shown above will be obtained when the internal PWM frequency of the
STK681-352-E is used.
Increasing the VCC supply voltage narrows the IO derating curve range, so IO should be set in reference to the above
graph.
The above operating substrate temperature, Tc, is measured immediately when the motor is started.
Since Tc fluctuates due to the ambient temperature, Ta, the motor current value, and continuous or intermittent
operations of the motor current, always confirm this values using an actual set.
The Tc temperature should be checked in the center of the metal surface of the product package.
14.4
No.A1929-3/14
STK681-352-E
STK681-352-E Allowable Brake Current Range (Low side: F3, F4=ON)
13
12
11
IOB - t
Brake current, IOB - A
Tc=25°C
10
9
8
7
6
5
1.0
70°C
80°C
90°C
105°C
2
3
5 7 10
2
3
5 7 100
2
3
5 7 1000
Conduction time, t - ms
STK681-352-E Allowable Brake Current Range (High side: F1, F2=ON)
or Allowable Startup Current Range
9
IO - t
8
Single-pulse current, IO - A
7
Tc=25°C
90°C
6
80°C
70°C
105°C
5
4
3
2
1.0
2
3
5 7 10
2
3
5 7 100
2
3
5 7 1000
Conduction time, t - ms
No.A1929-4/14
STK681-352-E
Internal Block Diagram
Unassigned pins
5
11
12
15
OUT1
8
10
7
VCC
9
OUT2
4
6
F1
F2
IN2
17
F3
F4
IN1
16
ENABLE
18
GND
1
VCC
2
3
Power supply
for Logic
VDD
Output short-circuit
detection
FAULT
13
Latch
Overheat
Detection
Vref
19
PWM
(46kHz typ)
Constant-
current control
Overcurrent
Detection
Setting voltage
(0.48V typ)
S.GND
14
No.A1929-5/14
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