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PDF MLX90804 Data sheet ( Hoja de datos )
| Número de pieza | MLX90804 | |
| Descripción | Speed regulator | |
| Fabricantes | Melexis | |
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MLX90804
Speed regulator for universal motors
Features and Benefits
• Low cost - minimal external components
• In PDIL8, PSOP8 or Chip-on-board
• 50/60Hz operation
• Robust digital design:
• Offering stable triac control
• Eliminating variations due to changes in analogue parameters
• No aging and temperature influences
• 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
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
Package
version
Temperature Range
MLX90804
S
A -x 0C to 85C Automotive
The customer specific version code (defining the options) is indicated with 1 character at the end of the ordering
number.
Functional Diagram
90804
VDD
VSS
Voltage
regulator
VDD1
Gate
sensing
Oscillator
PLL
SYN
SPD
Zero
crossing
detector
Triac TRG
drive
Control
logic
SET
ADC
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, …
MMLLXX990028xx04NaSmpeeeodf Sreegnusloartor for universal motors RePvaYg.Xe 1
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1 page  
MLX90804
Speed regulator for universal motors
Application Example - coil sensor
VDD1
TRG
90804
SPD
VSS SET VDD SYN
M
Application Example - hall sensor
VDD1
TRG
90804
SPD
VSS SET VDD SYN
Hall M
MMLLXX990028xx04NaSmpeeeodf Sreegnusloartor for universal motors RePvaYg.Xe 5
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5 Page 
MLX90804
Speed regulator for universal motors
MLX90804 Physical Characteristics
1.1
5 2.54
1.7 BSC
7
0.35
0.55
A
0.20
0.38
6.10 7.62 10.92
7.11 BSC Max
Notes:
5.33
MAX
2.93 0.39
4.06 Min
1-All measurements in mm
2-Body dimensions do not include mold
flash or protrusion - not to exceed
0.15mm
Dimension
A
Min
Max
8 Leads
9.02
10.16
14 Leads
18.67
19.68
16 Leads
18.67
19.68
18 Leads
22.35
23.67
20 Leads
24.89
26.92
24 Leads
31.24
32.51
For the latest version of this document,
Go to our website at:
www.melexis.com
Or for additional information
contact Melexis Direct:
USA
Melexis Inc.
41 Locke Road, Concord, NH 03301
Phone: +1 603 223 2362
E-mail: [email protected]
Fax: +1 603 223 9614
United Kingdom
Silicon Concepts
PCB Lynchborough Road, Hampshire GU30 7SB, United Kingdom
Phone: +44 1428 751 617
Fax: +44 1428 751 603
E-mail: [email protected]
Germany
Am Seestern 8, 40547 Düsseldorf, Germany
Phone: +49 211 5360212
Fax: +49 211 5360250
E-mail: [email protected]
France
Melexis France
Tour Arago, 5 rue Bellini, 92806 Puteaux-La-Défense, France.
Phone: +33 1 47 78 11 34
Fax: +33 1 47 78 06 35
E-mail: [email protected]
Italy
Dimacred IRL
Via Papa Giovanni XXIII no. 25, 20046 Biassono, Italy
Phone: +39 039 249 4856
Fax: +39 039 491773
E-mail: [email protected]
Japan
Satori Electric Co., LTD
1-14-10 Shiba, Minato-Ku, Tokyo, Japan
Phone: +81 3 3452 7171
Fax: +81 3 3769 2197
E-mail: [email protected]
Taiwan
Beechwood Int’l Taiwan Co.
Room 8, 17F, No. 189, Taipei, Taiwan
Phone: +886 2 2739 3322
E-mail: [email protected]
Fax: +886 2 2739 3090
MMLLXX990028xx04NaSmpeeeodf Sreegnusloartor for universal motors RePvaYg.Xe 11
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11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MLX90804.PDF ] | |
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