Datenblatt-pdf.com


TDA1085C Schematic ( PDF Datasheet ) - Motorola Semiconductors

Teilenummer TDA1085C
Beschreibung UNIVERSAL MOTOR SPEED CONTROLLER
Hersteller Motorola Semiconductors
Logo Motorola Semiconductors Logo 




Gesamt 12 Seiten
TDA1085C Datasheet, Funktion
Order this document by TDA1085C/D
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.
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 Peformed by Monitor
UNIVERSAL MOTOR
SPEED CONTROLLER
SEMICONDUCTOR
TECHNICAL DATA
16
1
PLASTIC PACKAGE
CASE 648
16
1
D SUFFIX
PLASTIC PACKAGE
CASE 751B
(SO–16)
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
TDA1085CD
SO–16
TDA1085C TJ = – 10° to +120°C Plastic DIP
+ VCC
9
Shunt Regulator
Ballast Resistor 10
8
Figure 1. Representative Block Diagram and Pin Connections
Voltage
Reg
Speed
Detector
Monitoring
Ramp
Generator
Reset
+
Control
Amp.
=
0.7 V
Trigger Pulse
Gen.
12 11 4 5 6
Current
Limiter
–VCC
37
16 14 15 2 1 13
MOTOROLA ANALOG IC DEVICE DATA
© Motorola, Inc. 1996
Rev 5
1






TDA1085C Datasheet, Funktion
TDA1085C
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 µA
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 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 k. 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.
Figure 2. Acceleration Ramp
V
VPin 5
VPin 7
VPin 4
t
0
Figure 3. Programmable Double
Acceleration Ramp
Speeds
VPin 5 fixed set value
High Acceleration
Ramp
VDF
VDS Distribution
0
VPin 6 = VDS
VDF = 2 VDS
High Acceleration
Ramp
Low Acceleration
Ramp
t
6 MOTOROLA ANALOG IC DEVICE DATA

6 Page









TDA1085C pdf, datenblatt
TDA1085C
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.
How to reach us:
USA / EUROPE / Locations Not Listed: Motorola Literature Distribution;
P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454
MFAX: [email protected] – TOUCHTONE 602–244–6609
INTERNET: http://Design–NET.com
JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center,
3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315
ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
12
*TDA1085C/D*MOTOROLA ANALOG IC DTEDVAI1C08E5DC/ADTA

12 Page





SeitenGesamt 12 Seiten
PDF Download[ TDA1085C Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
TDA1085UNIVERSAL MOTOR SPEED CONTROLLERMotorola Semiconductors
Motorola Semiconductors
TDA1085CUNIVERSAL MOTOR SPEED CONTROLLERMotorola Semiconductors
Motorola Semiconductors
TDA1085CUniversal Motor Speed ControllerON Semiconductor
ON Semiconductor
TDA1085CDUNIVERSAL MOTOR SPEED CONTROLLERMotorola Semiconductors
Motorola Semiconductors

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche