MLX90804SA-X ETC, MLX90804SA-X Datasheet

MLX90804SA-X

Manufacturer Part Number

MLX90804SA-X

Description

Speed regulator for universal motors

Manufacturer

ETC

Datasheet

1.MLX90804SA-X.pdf (12 pages)

Current page: 1 of 12
Download datasheet (148Kb)

Features and Benefits

Applications

Universal motor control applications that require true speed regulation, such as used in

blenders, mixers, kitchen appliances, drills, etc

Ordering Information

Part No.

MLX90804

The customer specific version code (defining the options) is indicated with 1 character at the end of the ordering

number.

Functional Diagram

MLX902xx Name of Sensor

MLX90804 Speed regulator for universal motors

V D D

S Y N

V S S

S E T

Low cost - minimal external components

In PDIL8, PSOP8 or Chip-on-board

50/60Hz operation

Robust digital design:

True PI speed regulator

No external calibration or adjustment required

Low power consumption

Suited for driving resistive and inductive loads

Pulse input to measure the motor speed with a low cost coil or a hall sensor

Motor current sensing for power limitation

Adaptable to specific motor and application requirements by mask programming

S P D

9 0 8 0 4

Offering stable triac control

Eliminating variations due to changes in analogue parameters

No aging and temperature influences

Oscillator

regulator

Voltage

crossing

detector

Zero

A D C

Temperature Suffix

P L L

V D D 1

Control

logic

sensing

Gate

Triac

drive

Package

T R G

Speed regulator for universal motors

Rev Y.X

Page 1

Description

The MLX90804 is a power control IC for controlling

the speed of AC motors by means of a triac. The

speed setting is done by applying a ratiometric

voltage at pin SET (usually by means of a

potentiometer). This speed setting is compared with

the pulse rate at the SPD input. The input is

compatible with inductive and magnetic detectors.

The calculation of the required phase angle is done

with a PI regulator, which is fully digital.

A soft start function is implemented to eliminate high

current peaks at startup. Also available are an

overload and overspeed protection.

The build in Frequency Locked Loop compensates

for variations in the mains frequency giving a stable

frequency independent trigger control.

Several parameters can be adjusted by mask

programming: minimum and maximum speed, soft

start delay, gain settings of the PI regulator, …

-x

version

22/Aug/98

Temperature Range

0C to 85C Automotive

MLX90804

Rev 1.0

30/Jun/00

Page 1

Related parts for MLX90804SA-X

MLX90804SA-X Summary of contents

Page 1

... Pulse input to measure the motor speed with a low cost coil or a hall sensor Motor current sensing for power limitation Adaptable to specific motor and application requirements by mask programming Applications Universal motor control applications that require true speed regulation, such as used in blenders, mixers, kitchen appliances, drills, etc Ordering Information Part No. Temperature Suffix MLX90804 ...

Page 2

General Description Speed Regulator The speed is regulated regulator with programmable parameters Kp and Ki. Speed Measurement The speed is measured either by a coil hall sensor with digital output. The type of sensor ...

Page 3

MLX90804 Electrical Specifications DC Operating Parameters Parameter Symbol Ambient temperature Tamb Maximum chip temperature Tch Thermal resistance Rth Maximum allowed source IDD4m supply current Power supply The 90804 supply pin (VDD1) must ...

Page 4

Zero crossing detector This detector contains two comparators with hysteresis. The first comparator has reference at VDD1. The refer- ence of the second one is VDD1-1V. Both outputs ZC1 and ZC2 are HIGH during positive half wave of the mains ...

Page 5

Application Example - coil sensor Application Example - hall sensor MLX902xx Name of Sensor MLX90804 Speed regulator for universal motors Speed regulator for universal motors 90804 ...

Page 6

Digital features Ignition detector This block tracks if the triac is ON after each firing pulse. It senses the voltage at the gate of the triac. If the triac is OFF 10us after a firing pulse, a new pulse will ...

Page 7

input frequency multiplier DIV [MULT PX3 PX2 PX1 ...

Page 8

REAL ...

Page 9

This happens when the triac is fired with minimum delay from the zero cross. MIN corresponds to the minimum time the triac is fired. This happens when the triac is fired with ...

Page 10

Applications Information Following additional information is available for the MLX90804: Application note: a basic phase angle speed con- troller This document describes in detail how to make an application with the MLX90804 The MLX90804 Demo Board This document describes the ...

Page 11

MLX90804 Physical Characteristics 1 1 ...

Page 12

MLX90804 Speed regulator for universal motors Speed regulator for universal motors Page 12 MLX90804 Rev 1.0 30/Jun/00 ...

Related keywords

MLX90804SA-X datasheet
MLX90804SA-X data sheet
MLX90804SA-X pdf datasheet
MLX90804SA-X component
MLX90804SA-X part
MLX90804SA-X distributor
MLX90804SA-X RoHS
MLX90804SA-X datasheet download