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TDA1085C の電気的特性と機能

TDA1085CのメーカーはON Semiconductorです、この部品の機能は「Universal Motor Speed Controller」です。


製品の詳細 ( Datasheet PDF )

部品番号 TDA1085C
部品説明 Universal Motor Speed Controller
メーカ ON Semiconductor
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TDA1085C Datasheet, TDA1085C PDF,ピン配置, 機能
TDA1085C
Universal Motor
Speed Controller
The TDA1085C is a phase angle triac controller having all the
necessary functions for universal motor speed control in washing
machines. It operates in closed loop configuration and provides two
ramp possibilities.
Features
On−Chip Frequency to Voltage Converter
On−Chip Ramps Generator
Soft−Start
Load Current Limitation
Tachogenerator Circuit Sensing
Direct Supply from AC Line
Security Functions Performed by Monitor
Pb−Free Package is Available*
MAXIMUM RATINGS (TA = 25°C, voltages are referenced to Pin 8, ground)
Rating
Symbol
Value
Unit
Power Supply, when externally regulated,
VPin 9
Maximum Voltage per listed pin
Pin 3
Pin 4−5−6−7−13−14−16
Pin 10
VCC
VPin
15 V
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+ 5.0
0 to + VCC
0 to + 17
V
Maximum Current per listed pin
Pin 1 and 2
Pin 3
Pin 9 (VCC)
Pin 10 shunt regulator
Pin 12
Pin 13
IPin mA
− 3.0 to + 3.0
− 1.0 to + 0
15
35
− 1.0 to + 1.0
− 200
Maximum Power Dissipation
PD 1.0 W
Thermal Resistance, Junction−to−Air
RqJA
65 °C/W
Operating Junction Temperature
TJ −10 to +120 °C
Storage Temperature Range
Tstg −55 to +150 °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.
http://onsemi.com
16
1
PDIP−16
C SUFFIX
CASE 648
PLASTIC PACKAGE
MARKING DIAGRAM
16
TDA1085C
AWLYYWWG
1
TDA1085C = Device Code
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
ORDERING INFORMATION
Device
TDA1085C
TDA1085CG
Package
PDIP−16
PDIP−16
(Pb−Free)
Shipping
25 Units / Rail
25 Units / Rail
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2006
April, 2006 − Rev. 9
1
Publication Order Number:
TDA1085C/D

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TDA1085C pdf, ピン配列
TDA1085C
ELECTRICAL CHARACTERISTICS (continued)
Characteristic
CURRENT LIMITER
Limiter Current Gain — IPin 7/IPin 3
(IPin3 = − 300 mA)
Detection Threshold Voltage
IPin 3 = − 10 mA
FREQUENCY TO VOLTAGE CONVERTER
Input Signal “Low Voltage”
Input Signal “High Voltage”
Monitoring Reset Voltage
Negative Clamping Voltage
IPin 12 = − 200 mA
Input Bias Current
Internal Current Source Gain
G
+
IPin 4
IPin 11
,
VPin
4
+
VPin
11
+
0
Gain Linearity versus Voltage on Pin 4
(G8.6 = Gain for VPin 4 = 8.6 V)
V4 = 0 V
V4 = 4.3 V
V4 = 12 V
Gain Temperature Effect (VPin 4 = 0)
Output Leakage Current (IPin 11 = 0)
CONTROL AMPLIFIER
Actual Speed Input Voltage Range
Input Offset Voltage VPin 5 − VPin 4
(IPin 16 = 0, VPin 16 = 3.0 and 8.0 V)
Amplifier Transconductance
(IPin 16/D (V5 − V4)
(IPin 16 = + and − 50 mA, VPin 16 = 3.0 V)
Output Current Swing Capability
Source
Sink
Output Saturation Voltage
TRIGGER PULSE GENERATOR
Synchronization Level Currents
Voltage Line Sensing
Triac Sensing
Trigger Pulse Duration (CPin 14 = 47 nF, RPin 15 = 270 kW)
Trigger Pulse Repetition Period, conditions as a.m.
Output Pulse Current VPin 13 = VCC − 4.0 V
Output Leakage Current VPin 13 = − 3.0 V
Full Angle Conduction Input Voltage
Saw Tooth “High” Level Voltage
Saw Tooth Discharge Current, IPin15 = 100 mA
Symbol
Cg
VPin 3 TH
V12 L
V12 H
V12 R
− V12 CL
− IPin12
G.0
G/G8.6
TF
− IPin 4
VPin 4
Voff
T
IPin 16
V16 sat
IPin 2
IPin 1
Tp
TR
− IPin 13
I13 L
V14
V14 H
IPin 14
Min
130
50
−100
+100
5.0
9.5
1.04
1.015
0.965
0
0
0
270
− 200
50
180
12
90
Typ
180
65
0.6
25
1.05
1.025
0.975
350
340
− 100
100
± 50
± 50
55
220
192
11.7
Max Unit
250
80 mV
− mV
− mV
−V
−V
mA
11
1.06
1.035
0.985
100
ppm/°C
nA
13.5 V
50 mV
400 mA/V
mA
− 50
200
0.8 V
± 100
± 100
30
12.7
105
mA
ms
ms
mA
mA
V
V
mA
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3Pages


TDA1085C 電子部品, 半導体
TDA1085C
Tachogenerator Circuit
The tacho signal voltage is proportional to the motor speed.
Stability considerations, in addition, require an RC filter, the
pole of which must be looked at. The combination of both
elements yield a constant amplitude signal on Pin 12 in most
of the speed range. It is recommended to verify this maximum
amplitude to be within 1.0 V peak in order to have the largest
signal/noise ratio without resetting the integrated circuit
(which occurs if VPin 12 reaches 5.5 V). It must be also verified
that the Pin 12 signal is approximately balanced between
“high” (over 300 mV) and “low”. An 8−poles tacho is a
minimum for low speed stability and a 16−poles is even better.
The RC pole of the tacho circuit should be chosen within
30 Hz in order to be as far as possible from the 150 Hz which
corresponds to the AC line 3rd harmonic generated by the
motor during starting procedure. In addition, a high value
resistor coming from VCC introduces a positive offset at Pin
12, removes noise to be interpreted as a tacho signal. This
offset should be designed in order to let Pin 12 reach at least
− 200 mV (negative voltage) at the lowest motor speed. We
remember the necessity of an individual tacho ground
connection.
Frequency to Voltage Converter − F V/C
CPin 11 has a recommended value of 820 pF for 8−poles
tachos and maximum motor rpm of 15000, and RPin 11 must
be always 470 K.
RPin 4 should be chosen to deliver within 12 V at
maximum motor speed in order to maximize signal/noise
ratio. As the FV/C ratio as well as the CPin 11 value are
dispersed, RPin 4 must be adjustable and should be made of
a fixed resistor in service with a trimmer representing 25%
of the total. Adjustment would become easier.
Once adjusted, for instance at maximum motor speed, the
FV/C presents a residual non linearity; the conversion factor
(mV per RPM) increases by within 7.7% as speed draws to
zero. The guaranteed dispersion of the latter being very
narrow, a maximum 1% speed error is guaranteed if during
Pin 5 network design the small set values are modified, once
forever, according this increase.
The following formulas give VPin 4:
VPin 4 + G.0 @ (VCC–Va)
)G.0 . (VCC − Va) ] 140
@
CPin
11
@
R4
@
f
@
(1
1
)
120k In
RPin11
volts.
Va = 2.0 VBE
120 k = Rint, on Pin 11
Speed Set (Pin 5)
Upon designer choice, a set of external resistors apply a
series of various voltages corresponding to the various
motor speeds. When switching external resistors, verify that
no voltage below 80 mV is ever applied to Pin 5. If so, a full
circuit reset will occur.
Ramps Generator (Pin 6)
If only a high acceleration ramp is needed, connect Pin 6
to ground.
When a Distribute ramp should occur, preset a voltage on
Pin 6 which corresponds to the motor speed starting ramp
point. Distribution (or low ramp) will continue up to the
moment the motor speed would have reached twice the
starting value.
The ratio of two is imposed by the IC. Nevertheless, it
could be externally changed downwards (Figure 6) or
upwards (Figure 7).
The distribution ramp can be shortened by an external
resistor from VCC charging CPin 7, adding its current to the
internal 5.0 mA generator.
Power Circuits
Triac Triggering pulse amplitude must be determined by
Pin 13 resistor according to the needs in Quadrant IV.
Trigger pulse duration can be disturbed by noise signals
generated by the triac itself, which interfere within Pins 14
and 16, precisely those which determine it. While easily
visible, this effect is harmless.
The triac must be protected from high AC line dV/dt during
external disturbances by 100 nF x 100 W network.
Shunt resistor must be as non−inductive as possible. It can
be made locally by using constantan alloy wire.
When the load is a DC fed universal motor through a
rectifier bridge, the triac must be protected from commutating
dV/dt by a 1.0 to 2.0 mH coil in series with MT2.
Synchronization functions are performed by resistors
sensing AC line and triac conduction. 820 k values are
normal but could be reduced down to 330 k in order to detect
the “zeros” with accuracy and to reduce the residual DC line
component below 20 mA.
Current Limitation
The current limiter starts to discharge Pin 7 capacitor
(reference speed) as the motor current reaches the designed
threshold level. The loop gain is determined by the resistor
connecting Pin 3 to the series shunt. Experience has shown
that its optimal value for a 10 Arms limitation is within
2.0 kW. Pin 3 input has a sensitivity in current which is
limited to reasonable values and should not react to spikes.
If not used, Pin 3 must be connected to a maximum
positive voltage of 5.0 V rather than be left open.
Loop Stability
The Pin 16 network is predominant and must be adjusted
experimentally during module development. The values
indicated in Figure 4 are typical for washing machine
applications but accept large modifications from one model
to another. R16 (the sole restriction) should not go below
33 k, otherwise slew rate limitation will cause large transient
errors for load steps.
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共有リンク

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