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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

UNIVERSAL MOTOR SPEED CONTROLLER
SEMICONDUCTOR TECHNICALDATA

• • • • • •

On–Chip Ramps Generator Soft–Start Load Current Limitation Tachogenerator Circuit Sensing Direct Supply from AC Line Security Functions Peformed by Monitor
16 1

16 1

PLASTIC PACKAGE CASE 648

D SUFFIX PLASTIC PACKAGE CASE 751B (SO–16)

ORDERING INFORMATION
Device TDA1085CD TDA1085C Operating Temperature Range TJ = – 10° to +120°C Package SO–16 Plastic DIP

Figure1. Representative Block Diagram and Pin Connections
+ VCC Shunt Regulator Ballast Resistor

9 10 8

Voltage Reg

Monitoring Reset

Speed Detector Ramp Generator

– + Control Amp.

Trigger Pulse Gen.

0.7 V

=

Current Limiter
12 11 4 5 6 3

–VCC
7 16 14 15 2 1 13

Digital Speed Sense

F/VC Pump Capacitor

Ramp Gen. Timing

Actual Speed Set Speed

SawtoothCapacitor

Ramp Current Gen. Control

Sawtooth Set Current

Voltage Synchronization

Current Synchronization

Motor Current Limit

Closed Loop Stability

© Motorola, Inc. 1996

Trigger Pulse Output

Rev 5

MOTOROLA ANALOG IC DEVICE DATA

1

TDA1085C
MAXIMUM RATINGS (TA = 25°C, voltages are referenced to Pin 8, ground)
Rating Power Supply, when externally regulated, VPin 9Maximum Voltage per listed pin Pin 3 Pin 4–5–6–7–13–14–16 Pin 10 Maximum Current per listed pin Pin 1 and 2 Pin 3 Pin 9 (VCC) Pin 10 shunt regulator Pin 12 Pin 13 Maximum Power Dissipation Thermal Resistance, Junction–to–Air Operating Junction Temperature Storage Temperature Range Symbol VCC VPin + 5.0 0 to + VCC 0 to + 17 IPin – 3.0 to + 3.0 – 1.0 to + 0 15 35 – 1.0 to + 1.0 – 200 PD RθJA TJ Tstg 1.065 – 10 to + 120 – 55 to + 150 W °C/W °C °C mA Value 15 Unit V V

ELECTRICAL CHARACTERISTICS (TA = 25°C)
Characteristic VOLTAGE REGULATOR Internally Regulated Voltage (VPin 9) (IPin 7 = 0, IPin 9 + IPin 10 = 15 mA, IPin 13 = 0) VCC Temperature Factor Current Consumption (IPin 9) (V9 = 15 V, V12 = V8 = 0, I1 = I2 = 100 µA, all other pins not connected) VCC Monitoring Enable Level VCC MonitoringDisable Level RAMP GENERATOR Reference Speed Input Voltage Range Reference Input Bias Current Ramp Selection Input Bias Current Distribution Starting Level Range Distribution Final Level VPin 6 = 0.75 V High Acceleration Charging Current VPin 7 = 0 V VPin 7 = 10 V Distribution Charging Current VPin 7 = 2.0 V VPin 5 – IPin 5 – IPin 6 VDS VDF/VDS – IPin 7 1.0 1.0 – IPin 7 4.0 — 1.2 5.0 1.7 1.4 6.0 µA0.08 0 0 0 2.0 — 0.8 — — 2.09 13.5 1.0 1.0 2.0 2.2 mA V µA µA V VCC TF ICC 15 — — 15.3 – 100 4.5 15.6 — 6.0 V ppm/°C mA Symbol Min Typ Max Unit

VCC EN VCC DIS

— —

VCC – 0.4 VCC – 1.0

— —

V

2

MOTOROLA ANALOG IC DEVICE DATA

TDA1085C
ELECTRICAL CHARACTERISTICS (continued)
Characteristic CURRENT LIMITER Limiter Current Gain — IPin 7/IPin 3 (IPin3 = – 300 µA) DetectionThreshold Voltage IPin 3 = – 10 µA FREQUENCY TO VOLTAGE CONVERTER Input Signal “Low Voltage” Input Signal “High Voltage” Monitoring Reset Voltage Negative Clamping Voltage IPin 12 = – 200 µA Input Bias Current Internal Current Source Gain I Pin 4 , V V G Pin 4 Pin 11 I Pin 11 V12 L V12 H V12 R – V12 CL – IPin12 –100 +100 5.0 — — 9.5 — — — 0.6 25 — — — — — — 11 mV mV V V µA Cg VPin 3 TH 130 50 180 65250 80 mV Symbol Min Typ Max Unit

+

+

+0

G.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/∆...
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