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MLX90804
Speed regulator universal motors
cost minimal external components PDIP8 Chip-on-board Robust digital design: Offering stable triac control Eliminating variations changes analogue parameters aging temperature influences True speed regulator external calibration adjustment required power consumption Suited driving resistive inductive loads Pulse input measure motor speed with cost coil hall sensor operation customizable mask programming Adaptable specific motor application requirements mask programming
Applications
Universal motor control applications that require true speed regulation, such used blenders, mixers, kitchen appliances, drills,
Ordering Information
Part MLX90804 Temperature Suffix (0°C 70°C) Package Code (PDIP-8) Option Code*
Option Code Table details
Functional Diagram
90804 Oscillator Triac driver Voltage regulator VDD1 Gate sensing
Description
MLX90804 power control controlling speed motors means triac. speed setting done applying ratiometric voltage (usually means potentiometer). This speed setting compared with pulse rate input. input compatible with inductive magnetic detectors. calculation required phase angle done with regulator, which fully digital. soft start function implemented eliminate high current peaks startup. Also available overload overspeed protection. build Frequency Locked Loop compensates variations mains frequency giving stable frequency independent trigger control. Several parameters adjusted mask programming: speed, soft start delay, gain settings regulator,
Zero crossing detector
Control logic
3901090804 Rev.
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Data Sheet Mar/04
MLX90804
Speed regulator universal motors TABLE CONTENTS
FEATURES BENEFITS APPLICATIONS. ORDERING INFORMATION. FUNCTIONAL DIAGRAM. DESCRIPTION. DEFINITIONS DESCRIPTIONS ABSOLUTE MAXIMUM RATINGS MLX90804 ELECTRICAL SPECIFICATIONS GENERAL DESCRIPTION DIGITAL FEATURES APPLICATIONS INFORMATION 8.1. 8.2. 8.3. APPLICATION EXAMPLES ADDITIONAL APPLICATION INFORMATION OPTION CODE TABLE
RELIABILITY INFORMATION.
PRECAUTIONS. PACKAGE INFORMATION. DISCLAIMER
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Data Sheet Mar/04
MLX90804
Speed regulator universal motors
Definitions Descriptions
Name TEST VDD1 Type Input Input Input Input Output Supply Supply Output Description Speed setting input Speed measurement Test Zero cross input Triac driver output Ground Supply, high level Reference voltage
Absolute Maximum Ratings
Maximum Supply Voltage, VDD1 Ambient temperature range Maximum Supply Current, IDD1 Maximum junction temperature 85°C 10mA 150°C
Exceeding absolute maximum ratings cause permanent damage. Exposure absolute maximum-rated conditions extended periods affect device reliability.
MLX90804 Electrical Specifications
Operating Conditions 85oC, VDD1 12.5V (unless otherwise specified) Parameter Symbol Test Conditions PackageThermal resistance PDIP8 package Units °C/W
Power supply
90804 ground (VSS) must connected external series resistors rectifier diode line. internal zener function limits voltage VDD1 approximately 16V. proper operation decoupling capacitor must connected between VDD1 VSS. Parameter Symbol Test Conditions Units Supply Voltage Current consumption Reference Voltage Internal Zener Voltage VDD1 IDD1 VDD1 14V, drivers IDDEXT 1.2mA IDD1= 12.5 16.7
Analog Power-On Reset
This block tracks voltage applied VDD1. triac firing permitted VDD1 Vaporh stopped when VDD1<Vaporl.
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Data Sheet Mar/04
MLX90804
Speed regulator universal motors
Parameter High level threshold level threshold Hysteresis Symbol Vaporh Vaporl Vaphyst Test Conditions 11.5 14.5 11.5 Units
Zero crossing detector
This detector contains comparators with hysteresis. first comparator reference VDD1. reference second VDD1-1V. Both outputs HIGH during positive half wave mains during negative half wave mains. Parameter Symbol Test Conditions Units High level threshold level threshold High level threshold level threshold Vzc1h Vzc1l Vzc2h Vzc2l Referenced VDD1 Referenced VDD1 Referenced VDD1 Referenced VDD1 -0.1 -1.1 -1.7 -0.3 -1.9 -2.5 -0.5 -2.7 -3.3
Speed measurement
chip input measure motor speed. possible connect cost inductor (between VSS) hall sensor with digital output. type sensor defined mask option. case coil input levels defined table below. case hall sensor, levels cmos compatible. Parameter Symbol Test Conditions Units High comparator level comparator level SPDHI SPDLO
Note: When used with coil, input voltage chip limited approximately -280mV. However current injected pulled this should increase above When used with hall sensor, input does have internal pull resistor.
Ignition driver
This driver operates current generator fire triac. Parameter Symbol Test Conditions Triac gate current ITRG VDD1 Vaporh Units
This 4-bit ADC. Parameter Resolution Reference voltage Vref Symbol Test Conditions Units bits
3901090804 Rev.
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Data Sheet Mar/04
MLX90804
Speed regulator universal motors
General Description
Speed Regulator
speed regulated regulator with programmable parameters disconnect motor and/or electronics from mains.
Speed Measurement
speed measured either coil hall sensor with digital output. type sensor defined mask option. sensor must located close cylindrical magnet. number pole pairs programmed.
Overload shutoff feature
after starting motor (i.e. selecting speed setting different from rpm) following function will enabled: speed motor gets lower than programmable value SLIM longer than motor speed permanently rpm. consequence first possible timeout recognize blocked motor after start will approximately sec. This state only left disconnecting power from electronic circuit.
Speed Setting
speed selected applying voltage SET. voltage this into (referenced VDD) converted 4-bit value. This value address table which different speeds programmed. This means that different speeds selected. relation between voltage input corresponding speed does need linear. freely chosen.
Overspeed shutoff feature
speed motor gets higher than programmable value SLIMA longer than 320ms, selected speed permanently rpm. This state only left disconnecting power from electronics.
Soft Start
soft start procedure activated start implemented guarantee smooth startup motor under conditions. very speed speed measured therefore several actions taken that regulator smoothly take over once speed increased sufficiently. soft start function configurable with option mask. Just after applying power electronics there delay time until motor starts movement. maximum allowable delay time
Speed Ramping
time when speed setting changed speed, change internally generated with ramp function optimize transient behavior regulator. This ramp function configurable with option mask.
Main Switch
possible program more speed settings with zero speed. This will stop motor. However security reasons might considered combine this setting with switch
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Data Sheet Mar/04
MLX90804
Speed regulator universal motors
Digital features
Ignition detector
This block tracks triac after each firing pulse. senses voltage gate triac. triac 10us after firing pulse, pulse will generated. There option (active mask) allowing eliminating ignition detector circuit. firing pulses generated every half period fire triac, instead. positions. Switch position corresponds very speed (1700 rpm) covers position converter. Switch position corresponding position zero speed. switch position speed setting increasing.
Multiplier input frequency from sensor
frequency multiplier designed order guarantee accurate measuring frequency input. multiplier measured period Fspd Tspd where Tspd 1/Fspd Fosc/MULT. value determines division coefficient down counter (divider), which clock input Fosc. output frequency from this counter value Fout Fosc/N Fosc/(Tspd Fosc/MULT)) Fspd MULT. output frequency Fspd multiplied coefficient MULT. coefficient MULT programmable from 256.
Debounce
assure stable operation, result from potentiometer reading debounced before passing through.
speeds (ROM table)
analog voltage converted digital value. This digital value address table. value with resolution bits defines required speed. definition speed settings totally free: does need linear, continuously, different addresses have same speed. SWITCH position settings SPEED [rpm] 1700 1700 1700 1700 2000 2000 3500 3500 7200 7200 12200 12200 12200 12200
Frequency meter
frequency meter implemented simple counter. This counter cleared beginning every mains period (20ms). During mains period output frequency from frequency multiplier (Fout Fref MULT) applied clock input this counter. mains period value counter stored latch. This stored value proportional Fspd equals Tmains Fspd MULT. frequency measured during full during half period mains. option frequency measured over full mains period. option frequency measured half mains period.
Soft start
soft start initiated after proper power reset sequence. startup sequence influenced several options. initial phase angle applied triac defined (MIN[9:0] LD[9:0]), where MIN[9:0] minimum allowed firing angle, LD[9:0] value initially stored integrator. phase angle remains unchanged duration defined startup time SFT[1:0]. After that time regulator enabled with factor defined PX[3:1]. long
example found table: this application where input voltage defined with rotating knob, which only 3901090804 Rev.
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Data Sheet Mar/04
MLX90804
Speed regulator universal motors
FREF
FOSC/MULT
input frequency multiplier
MULT
FREF
FOSC
[MULT]
FOSC/MULT
UPCOUNTER
CONTROL
LATCH
(FOSC/MULT)/FREF
FOUT
MULT
FOUT FOSC/N FREF*MULT
measured speed smaller than start speed (defined SPE[1:0]), error signal input regulator kept zero. PX[3] factor fixed time. PX[3] factor changed when measured speed gets higher than start speed, which defined SPE[1:0]. same moment SETP integrator (see regulator) enabled preloaded with value measured speed. SFT1 SFT0
regulator
regulator calculates ignition point that corresponds selected speed. signal SETP driven from sets speeds table. signal REAL driven from frequency meter corresponds real speed. error signal sample time difference between measured speed desired speed this sample time. error multiplied proportional coefficient form proportional part ERRP. same error multiplied integral coefficient summed with previous errors. accumulated integral error ERRI then added proportional form final product ERRPI. This product subtracted from fixed MIN_ANGLE form triac ignition point (the estimated firing angle) coefficients mask programmable: defined PX[3:1] defined SSE[1:0]. SSE1 SSE2
Duration half periods
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Data Sheet Mar/04
MLX90804
Speed regulator universal motors
Speed Ramping
smooth operation avoid overshoots, point (desired speed) ramped from present value desired value. SETP integrator built around 8-bit counter guarantees smooth transition when changing speed setting. There comparator between SETP SETP changes then comparator enables IP-counter until gets equal SETP. speed setting different from rpm) following function will enabled: speed motor gets lower than programmable value SLIM longer then motor speed permanently rpm. consequence first possible timeout recognize blocked motor after start will approximately sec. This state only left disconnecting power from electronic circuit.
ERRP
REAL
ERRPI
MIN_ANGLE
ERRI
SETP
COMP
Preload Counter
Load Carry
DELAY
START
Reset
clock, which defines rate change, defined down counting independently, equals Fclkip 102.3KHz/(128*Not(UPR[4:0])+1) case counting Since value desired speed wide, counter only point ramp speed from table effectively multiplied
Overspeed shutoff feature
speed motor gets higher than programmable value SLIMA longer than 320ms, selected speed permanently rpm. This state only left disconnecting power from electronics.
Firing
regulator gives ignition angle IGN. resolution firing circuit compares ignition point with maximum minimum allowed angle MAX. corresponds maximum angle with triac (fired). This happens when triac fired with minimum delay from zero cross. corresponds minimum time triac fired. This happens when triac fired with maximum delay from zero cross. MAX, then MAX, thus firing Page Data Sheet Mar/04
Frequency Locked Loop circuit implemented obtain master frequency (approximately 100KHz) from free running on-chip oscillator. Both frequency multiplier have same functional blocks, uses line frequency reference.
Overload shutoff feature
after starting motor (i.e. selecting 3901090804 Rev.
MLX90804
Speed regulator universal motors
with angle. IGN, then firing done with angle. value compared with value down counter, which clocked DCLK 100kHz cleared beginning every half period line. When this counter value gets equal firing circuit produces ignition pulse GATE with duration selected with option DUTS[1:0]. After each firing pulse ignition detector activated. This will check whether triac fired correctly thus additional firing pulses required. there current flowing triac additional pulses will generated. MLX90804.
Options
following table lists mask options MLX90804 chip: Name Description MULT[7:0] SFT[1:0] PX[3:1] SSE[1:0] SPE[1:0] LD[9:0] DWR[4:0] UPR[4:0] DUTS[1:0] MULT9 MIN[9:0] MAX[9:0]* SLIM[9:0] SLIMA[4:0]
multiplication coefficient Fspd Gate frequency meter startup time Proportional coefficient Integral coefficient Start speed Preload Integrator SETP integrator down SETP integrator duration firing pulse Enable retriggering allowed firing angle allowed firing angle minimum speed limitation maximum speed limitation
MAINS
MAINS*2 GATE
DUTS1
DUTS0
Duration
3901090804 Rev.
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Data Sheet Mar/04
MLX90804
Speed regulator universal motors Applications Information
8.1. Application Examples
Application Example coil sensor
VDD1
90804
Application Example hall sensor
VDD1 90804
Hall
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Data Sheet Mar/04
MLX90804
Speed regulator universal motors
8.2. Additional Application Information
MLX90804 kitpart MLX90804 kitpart eeprom version MLX90804 which options programmed standard interface. kitpart assembled cerdip14 such that compatible with 8-pin MLX90804 production version. Following additional information available MLX90804: Application note: basic phase angle speed controller This document describes detail make application with MLX90804 MLX90804 Demo Board This document describes features possibilities MLX90804 demo board, ordered. Manual definition options This document guide definition options shows with example options defined your application. MLXSPI programming users guide This user guide MLXSPI programmer, which used program options into MLX90804 MLX90805 kitparts. describes both hardware software MLXSPI programmer.
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Data Sheet Mar/04
MLX90804
Speed regulator universal motors
8.3. Option Code Table
table below lists option values available option codes. OPTION Line frequency Sensor Type Number Poles MULT[7:0] Multiplication coefficient Fspd Gate frequency meter SFT[1:0] PX[3:1] SSE[1:0] Startup time Proportional coefficient Integral coefficient Coil Hall half periods 1/32 1000 1.44 8.00 1200 13000 1700 1700 1700 1700 2000 2000 3500 3500 7200 7200 12250 12250 12250 12250 Coil Hall half periods 1/32 1000 1.44 8.00 1200 13000 1700 1700 1700 1700 2000 2000 3500 3500 7200 7200 12250 12250 12250 12250
SPE[1:0] Start speed LD[9:0] Preload Integrator DWR[4:0] SETP integrator down UPR[4:0] SETP integrator DUTS[1:0] Duration firing pulse MULT9 Enable retriggering MIN[9:0] allowed firing angle MAX[9:0] allowed firing angle SLIM[9:0] Minimum speed limitation SLIMA[4:0] Maximum speed limitation ROM[0] ROM[1] ROM[2] ROM[3] ROM[4] ROM[5] ROM[6] ROM[7] ROM[8] ROM[9] Speed setting Speed setting Speed setting Speed setting Speed setting Speed setting Speed setting Speed setting Speed setting Speed setting
ROM[10] Speed setting ROM[11] Speed setting ROM[12] Speed setting ROM[13] Speed setting ROM[14] Speed setting ROM[15] Speed setting
3901090804 Rev.
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Data Sheet Mar/04
MLX90804
Speed regulator universal motors Reliability Information
This Melexis device classified qualified regarding soldering technology, solderability moisture sensitivity level, defined this specification, according following test methods: IPC/JEDEC J-STD-020 Moisture/Reflow Sensitivity Classification Nonhermetic Solid State Surface Mount Devices (classification reflow profiles according table 5-2) EIA/JEDEC JESD22-A113 Preconditioning Nonhermetic Surface Mount Devices Prior Reliability Testing (reflow profiles according table CECC00802 Standard Method Specification Surface Mounting Components (SMDs) Assessed Quality EIA/JEDEC JESD22-B106 Resistance soldering temperature through-hole mounted devices EN60749-15 Resistance soldering temperature through-hole mounted devices Method 2003 EIA/JEDEC JESD22-B102 Solderability soldering technologies deviating from above mentioned standard conditions (regarding peak temperature, temperature gradient, temperature profile etc) additional classification qualification tests have agreed upon with Melexis. application Wave Soldering SMD's allowed only after consulting Melexis regarding assurance adhesive strength between device board. Based Melexis commitment environmental responsibility, European legislation (Directive Restriction Certain Hazardous substances, RoHS) customer requests, Melexis installed Roadmap qualify their package families lead free processes also. Various lead free generic qualifications running, current results request. more information manufacturability/solderability quality page website:
Precautions
Electronic semiconductor products sensitive Electro Static Discharge (ESD). Always observe Electro Static Discharge control procedures whenever handling semiconductor products.
3901090804 Rev.
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Data Sheet Mar/04
MLX90804
Speed regulator universal motors Package Information
(PDIP-8) Package Dimensions
0.20 0.38
6.10 7.11
7.62 10.92
2.54
5.33 2.93 0.39 4.06
0.35 0.55
Notes: 1-All measurements 2-Body dimensions include mold flash protrusion exceed 0.15mm
Dimension
Leads
9.02 10.16
Leads
18.67 19.68
Leads
18.67 19.68
Leads
22.35 23.67
Leads
24.89 26.92
Leads
31.24 32.51
3901090804 Rev.
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Data Sheet Mar/04
MLX90804
Speed regulator universal motors
Disclaimer
Devices sold Melexis covered warranty patent indemnification provisions appearing Term Sale. Melexis makes warranty, express, statutory, implied, description regarding information forth herein regarding freedom described devices from patent infringement. Melexis reserves right change specifications prices time without notice. Therefore, prior designing this product into system, necessary check with Melexis current information. This product intended normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, high reliability applications, such military, medical life-support life-sustaining equipment specifically recommended without additional processing Melexis each application. information furnished Melexis believed correct accurate. However, Melexis shall liable recipient third party damages, including limited personal injury, property damage, loss profits, loss use, interrupt business indirect, special incidental consequential damages, kind, connection with arising furnishing, performance technical data herein. obligation liability recipient third party shall arise flow Melexis' rendering technical other services. 2002 Melexis rights reserved.
latest version this document. website www.melexis.com additional information contact Melexis Direct: Europe Japan:
Phone: 1367 0495 E-mail: sales_europe@melexis.com
other locations:
Phone: 2362 E-mail: sales_usa@melexis.com
ISO/TS 16949 ISO14001 Certified
3901090804 Rev.
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Data Sheet Mar/04
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