ENA1254A [SANYO]

Thick-Film Hybrid IC Unipolar Fixed-Current Chopper (External-Excited PWM) Scheme and Built-in Phase Signal Distribution IC Two-Phase Stepping Motor Driver (Square Wave Drive) Output Current 2.2A; 厚膜混合集成电路单极定电流斩波(外部激PWM)方案和内置相位信号分配IC两相步进电机驱动器(方波驱动)输出电流2.2A
ENA1254A
型号: ENA1254A
厂家: SANYO SEMICON DEVICE    SANYO SEMICON DEVICE
描述:

Thick-Film Hybrid IC Unipolar Fixed-Current Chopper (External-Excited PWM) Scheme and Built-in Phase Signal Distribution IC Two-Phase Stepping Motor Driver (Square Wave Drive) Output Current 2.2A
厚膜混合集成电路单极定电流斩波(外部激PWM)方案和内置相位信号分配IC两相步进电机驱动器(方波驱动)输出电流2.2A

驱动器 电机
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中文:  中文翻译
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Ordering number : ENA1254A  
Thick-Film Hybrid IC  
Unipolar Fixed-Current Chopper (External-Excited PWM)  
Scheme and Built-in Phase Signal Distribution IC  
STK672-340-E  
Two-Phase Stepping Motor Driver  
(Square Wave Drive) Output Current 2.2A  
Overview  
The STK672-340-E is a unipolar fixed-current chopper type 2-phase stepping motor driver hybrid IC. It features power  
MOSFETs in the output stage and a built-in phase signal distribution IC. The incorporation of a phase distribution IC  
allows the STK672-340-E to control the speed of the motor based on the frequency of an external input clock signal.  
It supports two types of excitation for motor control: 2-phase excitation and 1-2 phase excitation. It also provides a  
function for switching the motor direction.  
The STK672-340-E features an ENABLE pin, a function not provided in the STK672-120-E. When the ENABLE pin is  
set low while the clock signal is being supplied, all MOSFET devices are forced to the off state. When ENABLE is set  
high again later, the IC resumes operation, continuing with the prior excitation timing.  
Applications  
Two-phase stepping motor drive in send/receive facsimile units.  
Paper feed in copiers, industrial robots, and other applications that require 2-phase stepping motor drive.  
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 5-6520/72308HKIM No.A1254-1/13  
STK672-340-E  
Features  
The motor speed can be controlled by the frequency of an external clock signal (the CLOCK pin signal).  
The excitation type is switched according to the state (low or high) of the MODE pin. The mode is set to 2-phase or  
1-2 phase excitation on the rising edge of the clock signal.  
A motor direction switching pin (the CWB pin) is provided.  
Supports Schmitt input for 2.5V High level input.  
The motor current can be set by changing the Vref pin voltage. Since a 0.14Ω current detection resistor is built in, a  
current of 1A is set for each 0.14V of applied voltage.  
The input frequency range for the clock signal used for motor speed control is 0 to 50kHz.  
Supply voltage ranges: V  
= 10 to 42V, V = 5.0V 5%  
CC  
DD  
This IC supports motor operating currents of up to 2.2A at Tc = 105°C, and of up to 3.6A at Tc = 25°C.  
Provides a function that, during clock input, forces all MOSFET devices to the off state when the ENABLE pin is set  
low, and then, when ENABLE is set high, resumes operation continuing with the prior excitation timing.  
Specifications  
Absolute Maximum Ratings at Tc = 25°C  
Parameter  
Maximum supply voltage 1  
Maximum supply voltage 2  
Input voltage  
Symbol  
Conditions  
Ratings  
Unit  
V
V
max  
No signal  
52  
CC  
DD  
V
max  
max  
max  
No signal  
-0.3 to +7.0  
-0.3 to +7.0  
3.6  
V
V
Logic input pins  
V
IN  
Output current  
I
V
= 5V, CLOCK 200Hz  
A
OH  
DD  
Allowable power dissipation  
Operating substrate temperature  
Junction temperature  
Storage temperature  
Pd max  
Tc max  
Tj max  
Tstg  
With an arbitrarily large heat sink. Per MOSFET  
8
W
°C  
°C  
°C  
105  
150  
-40 to +125  
Allowable Operating Ranges at Ta = 25°C  
Parameter  
Operating supply voltage 1  
Operating supply voltage 2  
Input voltage  
Symbol  
Conditions  
With signals applied  
Ratings  
10 to 42  
5.0 5%  
unit  
V
V
CC  
V
With signals applied  
V
DD  
V
0 to V  
DD  
V
IH  
Output current 1  
I
I
1
Tc=105°C, CLOCK200Hz  
Tc=80°C, CLOCK200Hz,  
2.2  
A
OH  
OH  
Output current 2  
2
2.7  
A
See the motor current (I  
) derating curve  
OH  
CLOCK frequency  
f
Minimum pulse width: at least 10μs  
=1mA (Tc=25°C)  
0 to 50  
100min  
kHz  
V
CL  
Phase driver withstand voltage  
V
I
D
DSS  
Tc  
Recommended operating substrate  
temperature  
No condensation  
0 to 105  
°C  
Electrical Characteristics at Tc = 25°C, V  
= 24V, V  
= 5V  
CC  
DD  
Rating  
typ  
3.1  
Parameter  
Symbol  
Conditions  
unit  
min  
max  
V
supply current  
I
CLOCK=GND  
7
mA  
A
DD  
CCO  
Output average current  
Ioave  
With R/L=3Ω/3.8mH in each phase  
0.52  
0.58  
0.64  
Vref = 0.137V  
FET diode forward voltage  
Output saturation voltage  
Input high voltage  
Input low voltage  
Vdf  
If=1A (R =23Ω)  
1.1  
1.7  
V
V
L
Vsat  
R =23Ω  
0.31  
0.44  
L
V
Pins 8 to 12 (5 pins)  
Pins 8 to 12 (5 pins)  
With pins 8 to 12 at the ground level.  
Pin 7  
2.5  
V
IH  
V
0.6  
10  
V
IL  
Input current  
I
μA  
V
IL  
Vref input voltage  
VrH  
0
3.5  
500  
55  
Vref input bias current  
PWM frequency  
I
With pin 7 at 1V  
50  
45  
nA  
kHz  
IB  
fc  
35  
Note: A fixed-voltage power supply must be used.  
No.A1254-2/13  
STK672-340-E  
Package Dimensions  
unit:mm (typ)  
46.6  
41.2  
8.5  
3.6  
12  
0.5  
1
2.0  
0.4  
2.9  
11 2=22  
(9.6)  
Internal Equivalent Circuit Block Diagram  
A
5
AB  
4
B
3
BB  
2
6
8
V
(5V)  
DD  
V
DD  
F1  
F2  
F3  
F4  
Excitation mode  
selection  
MODE  
MODE  
FAO  
FAB  
FBO  
FBB  
Phase excitation  
signal generation  
CLOCK  
CWB  
CLOCK  
CWB  
9
Phase advance  
counter  
10  
RESETB  
RESETB  
R1  
R2  
11  
12  
RESETB  
RESETB  
AI  
BI  
Chopping  
circuit  
1
GND  
CI  
V
SS  
ITF02169  
7
Vref  
No.A1254-3/13  
STK672-340-E  
Sample Application Circuit  
STK672-340-E  
10μF  
6
V
=5V  
DD  
2-phase stepping motor  
+
CO3  
9
CLOCK  
MODE  
A
5
4
8
AB  
V
CC  
24V  
10  
12  
11  
CWB  
ENABLE  
B
3
2
20kΩ  
RO4  
RO3  
RESETB  
5V  
5V  
BB  
+
CO2  
RO1  
At least 100μF  
D1  
GND  
Vref  
7
1
P.GND  
+
10μF  
0.1μF  
RO2  
CO4  
CO1  
ITF02170  
To minimize noise in the 5V system, locate the ground side of capacitor CO2 in the above circuit as close as possible  
to pin 1 of the IC. Also, if at all possible, the ground used for Vref must not be common to the P.GND pattern, but  
must be directly wired from pin 1.  
Insert resistor RO3 (47 to 100Ω) so that the discharge energy from capacitor CO4 is not directly applied to the CMOS  
IC in this hybrid device. If the diode D1 has Vf characteristics with Vf less than or equal to 0.6V (when If = 0.1A),  
this will be smaller than the CMOS IC input pin diode Vf. If this is the case RO3 may be replaced with a short  
without problem.  
Apply 2.5V High level input to pins 8, 9, 10, 11, and 12.  
Since the input pins do not have built-in pull-up resistors, when the open-collector type pins 8, 9, 10, 11, and 12 are  
used as inputs, a 10 to 47kΩ pull-up resistor (to V ) must be used.  
DD  
To prevent incorrect operation due to chopping noise, we recommend inserting 470 to 1000pF capacitors between pin  
1 and each of the pins 8, 9, 10, and 12.  
(With the open-collector type IC, we also recommend inserting a 470 to 1000pF capacitor between pin 11 (RESETB)  
and pin 1 when pin 11 is used as an input.)  
The following circuit (for a lowered current of over 0.2A) is recommended if the application needs to temporarily  
lower the motor current. Here, a value of close to 100kΩ must be used for resistor RO1 to make the transistor output  
saturation voltage as low as possible.  
5V  
5V  
RO1  
Vref  
RO1  
Vref  
RO3  
RO2  
RO3  
RO2  
ITF02171  
ITF02172  
No.A1254-4/13  
STK672-340-E  
Motor current peak value I  
setting  
OH  
I
OH  
0
ITF02173  
I
= Vref ÷ Rs  
OH  
Vref = (RO2 ÷ (RO1 + RO2)) × 5V (or 3.3V)  
Rs is the hybrid IC internal current detection resistor.  
In the STK672-330-E (and STK672-350-E) Rs is 0.195Ω.  
(In the STK672-340-E and STK672-360-E, Rs is 0.14Ω.)  
Input Pin Functions  
Pin Name  
Pin No.  
Function  
Reference clock for motor phase current switching  
Excitation mode selection  
Input Conditions When Operating  
CLOCK  
9
8
Operates on the rising edge of the signal  
MODE  
CWB  
Low: 2-phase excitation  
High: 1-2 phase excitation  
Low: CW (forward)  
10  
11  
Motor direction switching  
High: CCW (reverse)  
RESETB  
System reset and A, AB, B, and BB outputs cutoff.  
A reset is applied by a low level  
Applications must apply a reset signal for at least 10μs  
when V  
is first applied.  
DD  
ENABLE  
12  
The A, AB, B, and BB outputs are turned off, and after  
operation is restored by returning the ENABLE pin to the  
high level, operation continues with the same excitation  
timing as before the low-level input.  
The A, AB, B, and BB outputs are turned off by a low-  
level input.  
(1) A simple reset function is formed from D1, CO4, RO3, and RO4 in this application circuit. With the CLOCK input  
held low, when the 5V supply voltage is brought up a reset is applied if the motor output phases A and BB are  
driven. If the 5V supply voltage rise time is slow (over 50ms), the motor output phases A and BB may not be driven.  
Increase the value of the capacitor CO4 and check circuit operation again.  
(2) See the timing chart for the concrete details on circuit operation.  
Usage Notes  
1. STK672-340-E input signal functions and timing (Specifications common to the STK672-330-E as well)  
(All inputs have no internal pull-up resistor.)  
[RESETB and CLOCK (Input signal timing when power is first applied)]  
As shown in the timing chart, a RESETB signal input is required by the driver to operate with the timing in which the  
F1 gate is turned on first. The RESETB signal timing must be set up to have a width of at least 10μs, as shown below.  
The capacitor CO4, and the resistors RO3 and RO4 in the application circuit form simple reset circuit that uses the  
RC time constant rising time. However, when designing the RESETB input based on V levels, the application must  
IH  
have the timing shown in figure 1.  
Rise of the 5V supply voltage  
RESETB signal input  
At least 10μs  
CLOCK signal  
ITF02174  
At least 5μs  
Figure 1 RESETB and CLOCK Signals Input Timing  
No.A1254-5/13  
STK672-340-E  
[CLOCK (Phase switching clock)]  
Input frequency: DC to 50kHz  
Minimum pulse width: 10μs  
Signals are read on the rising edge.  
[CWB (Motor direction setting)]  
The direction of rotation is switched by setting CWB to 1 (high) or 0 (low). See the timing charts for details on the  
operation of the outputs.  
Note: The state of the CWB input must not be changed during the 6.25μs period before and after the rising edge of  
the CLOCK input.  
[ENABLE (Forcible on/off control of the A, AB, B, and BB outputs, and selection of the operate or hold state for  
hybrid IC internal operation)]  
ENABLE = 1 (high): Normal operation  
ENABLE = 0 (low): Outputs A, AB, B, and BB forced to the off state.  
If, during the state where CLOCK signal input is provided, the ENABLE pin is set to 0 (low) and then is later  
restored to the 1 (high) state, the IC will resume operation with the excitation timing continued from before the point  
ENABLE was set to 0 (low).  
[MODE (Excitation mode selection)]  
MODE = 0 (low): 2-phase excitation  
MODE = 1 (high): 1-2 phase excitation  
See the timing charts for details on output operation in these modes.  
Note: The state of the MODE input must not be changed during the 5μs period before and after the rising edge of the  
CLOCK input.  
2. Allowable motor current operating range  
The motor current (I ) must be held within the range corresponding to the area under the curve shown in figure 3.  
OH  
For example, if the operating substrate temperature Tc is 105°C, then I  
OH  
must be held under I  
= 2.2A, and in  
OH  
hold mode I  
must be held under I  
= 1.8A.  
OH  
OH  
3. Thermal design  
[Operating range in which a heat sink is not used]  
This section discusses the safe operating range when no heat sink is used.  
In the maximum ratings specifications, Tc max is specified to be 105°C, and when mounted in an actual end product  
system, the Tc max value must never be exceeded during operation. Tc can be expressed by formula (A) below, and  
thus the range for ΔTc must be stipulated so that Tc is always under 105°C.  
Tc = Ta + ΔTc  
Ta: Hybrid IC (HIC) ambient temperature, ΔTc: Temperature increase across the aluminum substrate  
As shown in figure 5, the value of ΔTc increases as the hybrid IC internal average power dissipation P increases.  
(A)  
D
As shown in figure 4, P increases with the motor current. Here we describe the actual P calculation using the  
D
D
example shown in the motor current timing chart in figure 2.  
Since there are periods when current flows and periods when the current is off during actual motor operation, P  
D
cannot be determined from the data presented in figure 4. Therefore, we calculate P assuming that actual motor  
D
operation consists of repetitions of the operation shown in figure 2.  
I 1  
O
Motor phase current  
(sink side)  
I 2  
O
-I  
1
O
T1  
T2  
T0  
T3  
ITF02175  
Figure 2 Motor Current Timing  
No.A1254-6/13  
STK672-340-E  
T1: Motor rotation operation time  
T2: Motor hold operation time  
T3: Motor current off time  
T2 may be reduced, depending on the application.  
T0: Single repeated motor operating cycle  
I 1 and I 2: Motor current peak values  
O
O
Due to the structure of motor windings, the phase current is a positive and negative current with a pulse form.  
Note that figure 2 presents the concepts here, and that the on/off duty of the actual signals will differ.  
The hybrid IC (HIC) internal average power dissipation P can be calculated from the following formula.  
D
P
= (T1 × P1 + T2 × P2 + T3 × 0) ÷ T0 ·························································· (I)  
D
(Here, P1 is the P for I 1 and P2 is the P for I 2)  
D
O
D
O
If the value calculated in formula (I) above is under 1.5W, then from figure 5 we see that operation is allowed up to  
an ambient temperature Ta of 60°C.  
While the operating range when a heat sink is not used can be determined from formula (I) above, figure 4 is merely  
a single example of one operating mode for a single motor.  
For example, while figure 4 shows a 2-phase excitation motor, if 1-2 phase excitation is used with a 500Hz clock  
frequency, the drive will be turned off for 25% of the time and the dissipation P will be reduced to 75% of that in  
D
figure 4.  
It is extremely difficult for SANYO to calculate the internal average power dissipation P for all possible end  
D
product conditions. After performing the above rough calculations, always install the hybrid IC (HIC) in an actual  
end product and verify that the substrate temperature Tc does not rise above 105°C.  
[Operating range in which a heat sink is used]  
Although a heat sink is attached to lower Tc if the hybrid IC (HIC) internal average power dissipation P increases,  
D
the resulting size can be found using the value of θc-a in Equation (II) below and the graph depicted in Figure 6.  
θc-a= (Tc max-Ta) ÷ P ---------------------------- (II)  
D
Tc max: Maximum operating substrate temperature =105°C  
Ta: HIC ambient temperature  
Although a heat sink can be designed based on equations (I) and (II) above, be sure to mount the HIC in a set and  
confirm that the substrate temperature, Tc, is 105°C or less.  
The average HIC power loss, P , described above represents the power loss when there is no avalanche operation.  
D
To add the loss during avalanche operations, be sure to add Equation (2), “Allowable STK672-3** Avalanche  
Energy Value”, to P .  
D
θc-a - S  
Figure 6  
100  
7
5
3
2
10  
7
5
3
2
1.0  
2
3
5
7
2
3
5
7
1000  
10  
100  
Heat sink area, S - cm2  
ITF02652  
No.A1254-7/13  
STK672-340-E  
4. STK672-340-E Allowable Avalanche Energy Value  
[Allowable Range in Avalanche Mode]  
When driving a 2-phase stepping motor with constant current chopping using an STK672-3** Series hybrid IC, the  
waveforms shown in Figure 7 below result for the output current, I , and voltage, V  
DS  
.
D
V
: Voltage during avalanche operations  
DSS  
V
DS  
I
: Motor current peak value  
OH  
IAVL: Current during avalanche operations  
I
D
tAVL: Time of avalanche operations  
ITF02557  
Figure 7 Output Current, I , and Voltage, V , Waveforms 1 of the STK672-3** Series when  
DS  
D
Driving a 2-Phase Stepping Motor with Constant Current Chopping  
When operations of the MOSFET built into STK672-3** Series ICs is turned off for constant current chopping,  
the I signal falls like the waveform shown in the figure above. At this time, the output voltage, V , suddenly  
D
DS  
rises due to electromagnetic induction generated by the motor coil.  
In the case of voltage that rises suddenly, voltage is restricted by the MOSFET V  
. Voltage restriction by  
DSS  
V
results in a MOSFET avalanche. During avalanche operations, I flows and the instantaneous energy at  
D
DSS  
this time, EAVL1, is represented by Equation (1).  
EAVL1=V  
V
×IAVL×0.5×tAVL ------------------------------------------- (1)  
DSS  
: V units, IAVL: A units, tAVL: sec units  
DSS  
The coefficient 0.5 in Equation (1) is a constant required to convert the IAVL triangle wave to a  
square wave.  
During STK672-3** Series operations, the waveforms in the figure above repeat due to the constant current  
chopping operation. The allowable avalanche energy, EAVL, is therefore represented by Equation (2) used to find  
the average power loss, PAVL, during avalanche mode multiplied by the chopping frequency in Equation (1).  
PAVL=V  
×IAVL×0.5×tAVL×fc ------------------------------------------- (2)  
fc: Hz units (fc is set to the PWM frequency of 50kHz.)  
DSS  
For V  
DSS  
, IAVL, and tAVL, be sure to actually operate the STK672-3** Series and substitute values when  
operations are observed using an oscilloscope.  
Ex. If V =110V, IAVL=1A, tAVL=0.2μs when using a STK672-340-E driver, the result is:  
DSS  
PAVL=110×1×0.5×0.2×10-6×50×103=0.55W  
=110V is a value actually measured using an oscilloscope.  
V
DSS  
The allowable loss range for the allowable avalanche energy value, PAVL, is shown in the graph in Figure 9.  
When examining the avalanche energy, be sure to actually drive a motor and observe the I , V , and tAVL  
D
DSS  
waveforms during operation, and then check that the result of calculating Equation (2) falls within the allowable  
range for avalanche operations.  
No.A1254-8/13  
STK672-340-E  
[I  
V
Operating Waveforms in Non-avalanche Mode]  
D and DSS  
Although the waveforms during avalanche mode are given in Figure 7, sometimes an avalanche does not result during  
actual operations.  
Factors causing avalanche are listed below.  
Poor coupling of the motor’s phase coils (electromagnetic coupling of A phase and AB phase, B phase and  
BB phase).  
Increase in the lead inductance of the harness caused by the circuit pattern of the P.C. board and motor.  
Increases in V  
, tAVL, and IAVL in Figure 7 due to an increase in the supply voltage from 24V to 36V.  
DSS  
If the factors above are negligible, the waveforms shown in Figure 7 become waveforms without avalanche as  
shown in Figure 8.  
Under operations shown in Figure 8, avalanche does not occur and there is no need to consider the allowable  
loss range of PAVL shown in Figure 9.  
V
DS  
I
: Motor current peak value  
OH  
I
D
ITF02558  
Figure 8 Output Current, I , and Voltage, V , Waveforms 2 of the STK672-3** Series when Driving  
DS  
D
a 2-Phase Stepping Motor with Constant Current Chopping  
Figure 9 Allowable Loss Range, PAVL-I  
During STK672-340-E Avalanche Operations  
OH  
PAVL - I  
OH  
5.0  
4.5  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0
0
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
3.5  
Motor phase current, I  
OH  
- A  
ITF02653  
Note:  
The operating conditions given above represent a loss when driving a 2-phase stepping motor with constant current  
chopping.  
Because it is possible to apply 3.0W or more at I =0A, be sure to avoid using the MOSFET body diode that is used to  
OH  
drive the motor as a zener diode.  
[Smoke Emission Precuations]  
If any of the output pins 2, 3, 4, and 5 is held open, the electrical stress onto the driver due to the inductive energy  
accumulated in the motor could cause short-circuit followed by permanent damage to the internal MOSFET.  
As a result, the STK672-340-E may give rise to emit smoke.  
No.A1254-9/13  
STK672-340-E  
Timing Charts  
2-phase excitation  
MODE  
RESET  
CWB  
CLOCK  
ENABLE  
FAO  
FAB  
FBO  
FBB  
1-2 phase excitation  
MODE  
RESET  
CWB  
CLOCK  
ENABLE  
FAO  
FAB  
FBO  
FBB  
No.A1254-10/13  
STK672-340-E  
1-2 phase excitation (CWB)  
MODE  
RESET  
CWB  
CLOCK  
ENABLE  
FAO  
FAB  
FBO  
FBB  
Switching from 2-phase to 1-2 phase excitation  
MODE  
RESET  
CWB  
CLOCK  
ENABLE  
FAO  
FAB  
FBO  
FBB  
No.A1254-11/13  
STK672-340-E  
1-2 phase excitation (ENABLE)  
MODE  
RESET  
CWB  
CLOCK  
ENABLE  
FAO  
FAB  
FBO  
FBB  
I
- Tc  
P
- I  
OH  
Figure 3  
Figure 4  
OH  
D
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
16  
V
=24V, V =5.0V  
200Hz 2 phase excitation  
CC DD  
500Hz, 2 phase excitation  
Motor R=0.63Ω  
L=0.62mH  
14  
12  
10  
8
Hold mode  
6
4
2
0
0.5  
0
0
10  
20  
30  
40  
50  
60  
70  
80  
90 100 110  
0
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
3.5  
4.0  
Motor current, I  
OH  
- A  
Substrate temperature, Tc - °C  
ITF02650  
ITF02651  
ΔTc - P  
Figure 5  
D
80  
70  
60  
50  
40  
30  
20  
10  
0
0
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
3.5  
Hybrid IC internal average power dissipation, P - W  
ITF02178  
D
No.A1254-12/13  
STK672-340-E  
SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using  
products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition  
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.  
products described or contained herein.  
SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all  
semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or  
malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise  
to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt  
safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not  
limited to protective circuits and error prevention circuits for safe design, redundant design, and structural  
design.  
In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are  
controlled under any of applicable local export control laws and regulations, such products may require the  
export license from the authorities concerned in accordance with the above law.  
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or  
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without the prior written consent of SANYO Semiconductor Co.,Ltd.  
Any and all information described or contained herein are subject to change without notice due to  
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the  
SANYO Semiconductor Co.,Ltd. product that you intend to use.  
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed  
for volume production.  
Upon using the technical information or products described herein, neither warranty nor license shall be granted  
with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third  
party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's  
intellectual property rights which has resulted from the use of the technical information and products mentioned  
above.  
This catalog provides information as of June, 2011. Specifications and information herein are subject  
to change without notice.  
PS No.A1254-13/13  

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