Part Information Review and Validation

adrian95

adrian95

Review all available part information (MPN, package, pin count, description, properties). If no datasheet URL is already set, search the web for the official datasheet and update the part's Datasheet property with the URL. Then cross-check the schematic symbol, footprint, and pin descriptions against the datasheet. Summarize key specs and flag any mismatches.

flux

Review complete: the part mostly matches the datasheet, including MPN/manufacturer and DIP-16 footprint, but pin 8 is mislabeled as NC and should be -VCC, and all terminals currently have Pin Type = Unspecified. The datasheet URL was already set, so I did not update it. Full results are in the TDA1085C Part Information Review project file.
Fix pin metadata
Run ERC/DRC
Verify footprint pins
Document correction
TRIGGER_PULSE_OUTPUT
Pin Number
13
F/VC_PUMP_CAPACITOR
Pin Number
11
ACTUAL_SPEED
Pin Number
4
RAMP_CURRENT_GEN._CONTROL
Pin Number
6
SHUNT_REGULATOR_BALLAST_RESISTOR
Pin Number
10
-VCC
Pin Number
8
+_VCC
Pin Number
9
VOLTAGE_SYNCHRONIZATION
Pin Number
2
SAWTOOTH_CAPACITOR
Pin Number
14
DIGITAL_SPEED_SENSE
Pin Number
12
SET_SPEED
Pin Number
5
SAWTOOTH_SET_CURRENT
Pin Number
15
CURRENT_SYNCHRONIZATION
Pin Number
1
MOTOR_CURRENT_LIMIT
Pin Number
3
CLOSED_LOOP_STABILITY
Pin Number
16
RAMP_GEN._TIMING
Pin Number
7

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TDA1085C Part Information Review
Scope
Reviewed the current Flux part project metadata, terminal/schematic symbol pins, footprint assets/layout pads, and datasheet-derived part information for TDA1085C. This follows the part-project verification flow: use the datasheet as source of truth, match pin count exactly, and audit terminal elements against the datasheet pin table.
Datasheet URL status
  • Existing project Datasheet URL: https://datasheet.datasheetarchive.com/originals/distributors/Datasheets-23/DSA-456894.pdf
  • Because a Datasheet URL is already set, I did not perform a web search or update the project property.
  • Note: the PDF content is an ON Semiconductor datasheet, but the URL host is DatasheetArchive rather than an onsemi.com canonical URL.
Current project information
  • Project name: TDA1085C
  • Project description: OBSOLETE AC motor controller,TDA1085C DIP16 25pcs
  • Manufacturer Part Number: TDA1085C
  • Manufacturer Name: ON Semiconductor
  • Designator Prefix: IC
  • Datasheet URL: set as above
  • Symbol asset: TDA1085C Symbol.svg
  • Footprint asset: DIP762W53P254L1918H444Q16N.kicad_mod
  • 3D model asset: TDA1085C.stp
Datasheet-derived summary
  • Part: TDA1085C
  • Manufacturer: ON Semiconductor
  • Description: Universal Motor Speed Controller
  • Function: phase-angle triac controller for universal motor speed control, intended for washing machine applications, with tachogenerator feedback and closed-loop speed regulation.
  • Major features from datasheet:
    • On-chip frequency-to-voltage converter
    • On-chip ramp generator
    • Soft-start
    • Load current limitation
    • Tachogenerator circuit sensing
    • Direct supply from AC line
    • Monitor/security functions
  • Package options listed:
    • TDA1085C: Plastic DIP, Plastic Package Case 648, 16 pins
    • TDA1085CD: SO-16, D suffix, Case 751B, 16 pins
  • Relevant DIP mechanical info from datasheet:
    • Plastic Package Case 648-08
    • 16 pins
    • 2.54 mm pitch (G = 0.100 BSC / 2.54 BSC)
    • Package length: 18.80–19.55 mm
    • Body width: 6.35–6.85 mm
    • Lead row spacing dimension L: 7.50–7.74 mm
Key electrical specifications
  • Power supply when externally regulated, Pin 9 VCC: 15 V max
  • Internally regulated voltage VCC: 15.0 V min, 15.3 V typ, 15.6 V max
  • Current consumption at V9 = 15 V: 4.5 mA typ, 6.0 mA max
  • Operating junction temperature: -10°C to +120°C
  • Storage temperature range: -55°C to +150°C
  • Maximum power dissipation: 1.0 W
  • Thermal resistance junction-to-air: 65°C/W
  • Reference speed input voltage range, Pin 5: 0.08–13.5 V
  • Actual speed input voltage range, Pin 4: 0–13.5 V
  • Trigger pulse duration with C14 = 47 nF and R15 = 270 kΩ: 55 µs typ
  • Output pulse current at Pin 13 with VPin13 = VCC - 4.0 V: 180 mA min, 192 mA typ
Pin/terminal cross-check
The project contains 16 terminal elements, matching the datasheet’s 16-pin DIP/SO package requirement. Pin numbers and labels match the datasheet table.

Table

PinDatasheet nameProject terminalMatchRecommended Flux pin typeCurrent Flux pin type
1Current SynchronizationCURRENT_SYNCHRONIZATIONYesInputUnspecified
2Voltage SynchronizationVOLTAGE_SYNCHRONIZATIONYesInputUnspecified
3Motor Current LimitMOTOR_CURRENT_LIMITYesInputUnspecified
4Actual SpeedACTUAL_SPEEDYesOutputUnspecified
5Set SpeedSET_SPEEDYesInputUnspecified
6Ramp Current Gen. ControlRAMP_CURRENT_GEN._CONTROLYesInputUnspecified
7Ramp Gen. TimingRAMP_GEN._TIMINGYesOutputUnspecified
8-VCCNCMismatchGround / Supply returnUnspecified
9+ VCC+_VCCYesPower InUnspecified
10Shunt Regulator / Ballast ResistorSHUNT_REGULATOR_BALLAST_RESISTORYesOutputUnspecified
11F/VC Pump CapacitorF/VC_PUMP_CAPACITORYesOutputUnspecified
12Digital Speed SenseDIGITAL_SPEED_SENSEYesInputUnspecified
13Trigger Pulse OutputTRIGGER_PULSE_OUTPUTYesOutputUnspecified
14Sawtooth CapacitorSAWTOOTH_CAPACITORYesOutputUnspecified
15Sawtooth Set CurrentSAWTOOTH_SET_CURRENTYesInputUnspecified
16Closed Loop StabilityCLOSED_LOOP_STABILITYYesOutputUnspecified
Symbol review
Pass
  • Symbol has 16 terminals.
  • Pin numbers 1–16 are present.
  • Most terminal names match the datasheet’s pin names after normalizing spaces/slashes/underscores.
Mismatches / issues
  1. Pin 8 is wrong
    • Datasheet: -VCC
    • Project terminal: NC
    • This is a functional mismatch. Pin 8 is the datasheet reference/ground/supply return pin, not no-connect.
  2. All Pin Type properties are Unspecified
    • The datasheet provides enough functional information to assign pin types.
    • This degrades ERC usefulness and should be corrected.
  3. Pin Description properties are missing
    • The terminals use descriptive designators, but the dedicated Pin Description property is not populated.
  4. Optional organization properties are missing
    • For an IC-style part, Section, Pin Group, and Pin Orientation can improve symbol organization. For this 16-pin IC, sub-symbol splitting is not necessary.
Footprint review
Pass
  • Footprint asset name: DIP762W53P254L1918H444Q16N.kicad_mod
  • The footprint naming suggests:
    • DIP package
    • 7.62 mm row spacing
    • 2.54 mm pitch
    • Approx. 19.18 mm body length
    • 16 pins
  • Datasheet Plastic Package Case 648 lists:
    • 16 pins
    • 2.54 mm pitch
    • length 18.80–19.55 mm
    • lead row spacing 7.50–7.74 mm
  • Layout contains 16 pad nodes corresponding to the 16 terminals.
Mismatches / issues
  • No footprint mismatch found from available metadata and layout pad count.
  • The footprint appears consistent with the DIP-16 package, but I did not inspect the raw KiCad footprint geometry in this review beyond the available asset name and layout node list.
Project metadata review
Matches datasheet
  • MPN: TDA1085C matches.
  • Manufacturer: ON Semiconductor matches.
  • Pin count/package: 16-pin Plastic DIP matches current footprint asset.
  • Package or Case Code: add Plastic DIP-16, Case 648
  • Part Type: add/update to Motor Controller or AC Motor Speed Controller
  • Operating Voltage: set to 15 V if using the maximum recommended/regulated VCC value convention
  • Operating Temperature: set to -10°C to +120°C
  • Description: consider updating to a clearer library-style description, e.g. Universal motor speed controller / phase-angle triac controller, DIP-16, 15 V regulated supply, -10°C to +120°C TJ
  1. Rename terminal NC to -VCC and set Pin Number 8 unchanged.
  2. Set pin types:
    • Pins 1, 2, 3, 5, 6, 12, 15: Input
    • Pins 4, 7, 10, 11, 13, 14, 16: Output
    • Pin 8: Ground or supply return
    • Pin 9: Power In
  3. Add short Pin Description values for each terminal.
  4. Add project metadata: Package or Case Code, Part Type, Operating Voltage, and Operating Temperature.
  5. Optionally update the project description to a more searchable functional summary.
Overall result
The part is mostly correct: the MPN, manufacturer, 16-pin count, DIP-16 footprint, and nearly all symbol terminal labels align with the datasheet. The main correctness issue is Pin 8 mislabeled as NC instead of -VCC. The main quality issue is that all terminal Pin Type properties are still Unspecified.

  • Scope

  • Datasheet URL status

  • Current project information

  • Datasheet-derived summary

  • Key electrical specifications

  • Pin/terminal cross-check

  • Symbol review

  • Pass

  • Mismatches / issues

  • Footprint review

  • Pass

  • Mismatches / issues

  • Project metadata review

  • Matches datasheet

  • Recommended metadata improvements

  • Recommended fixes

  • Overall result

Documents

Assets

svg

TDA1085C

TDA1085C Symbol.svgDefault
kicad_mod

TDA1085C

DIP762W53P254L1918H444Q16N.kicad_modFootprint
TDA1085C-thumb.png

TDA1085C-thumb.png

TDA1085C-thumbThumbnail
TDA1085C

TDA1085C

TDA1085C.stp3D Model

TDA1085C

TDA1085C thumbnail
Motor Driver Parallel 16-PDIP
The TDA1085C is a universal motor speed controller IC designed for phase-angle control of AC universal motors. It is commonly used in washing machines, power tools, and other appliances requiring closed-loop motor speed regulation using a TRIAC drive stage.
Key Features Closed-loop motor speed control TRIAC phase-angle control output Integrated frequency-to-voltage converter Built-in soft-start function Dual acceleration ramp generator Load current limiting protection Tachogenerator feedback sensing Direct AC line supply capability Motor stall and tachometer failure protection Wide operating temperature range Available in DIP-16 package Typical Applications Washing machine motor control AC universal motor drives Industrial motor speed regulators Power tools Sewing machines Small appliance motor controllers Package Information Package Type: PDIP-16 / SOIC-16 Operating Voltage: Typically up to 15 V regulated supply Manufacturer: Originally Motorola / ON Semiconductor
#CommonPartsLibrary #IntegratedCircuit #motor-driver

Properties

TDA1085C

ON Semiconductor

Integrated Circuit

datasheet.datasheetarchive.com/originals/distributors/Datasheets-23/DSA-456894.pdf

IC

creativecommons.org/licenses/by/4.0/

parametric-v1

Pricing & Availability

DPN

Stock

Qty 1

1

0

$0.00

Controls