Motorola TDA1085C Universal Motor Speed Controller Datasheet

The TDA1085C is a phase angle triac controller with all the necessary functions for universal motor speed control in washing machines. It operates in closed loop configuration and provides two ramp possibilities.


Motorola TDA1085C Universal Motor Speed Controller Datasheet - cover page
Brand
Motorola
Document type
Datasheet
Language
English
Pages
12
File format
PDF
File size
173 KB
Published
05 July, 2012
Updated
28 September, 2023
MD5 checksum
41D3310678EB0A7E9F28CD290F49F94E

About this manual

The TDA1085C is a semiconductor device functioning as a phase angle triac controller specifically designed for universal motor speed control applications, such as washing machines. It operates in a closed-loop configuration and provides two ramp possibilities to manage acceleration efficiently.

Key features include an on-chip frequency-to-voltage converter, an on-chip ramp generator, soft-start capability, load current limitation, and tachogenerator circuit sensing. The device also incorporates security functions performed by a monitor to protect the system against AC line stoppage or variations, overcurrent in the motor, and tachogenerator failure.

What's inside

  • Ordering Information
  • Maximum Ratings
  • Electrical Characteristics
  • General Description
  • Input/Output Functions
  • Voltage Regulator
  • Speed Sensing
  • Ramp Generator
  • Control Amplifier
  • Trigger Pulse Generator

Specifications

Operating Device Temperature Range-10° to +120°C
Maximum Power Dissipation1.0 W
Thermal Resistance, Junction-to-Air65 °C/W
Internally Regulated Voltage (Typical)15.3 V
Current Consumption (Typical)6.0 mA
Amplifier Transconductance (Typical)340 µA/V

Frequently asked questions

Does the TDA1085C include a soft-start feature?

Yes, it provides soft-start functionality along with load current limitation.

What is the operating temperature range for the TDA1085C device?

The device operates within a junction temperature range of -10°C to +120°C.

What is the maximum power dissipation rating for the TDA1085C?

The maximum power dissipation is rated at 1.0 W.

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