MLX90401KDF MELEXIS [Melexis Microelectronic Systems], MLX90401KDF Datasheet

no-image

MLX90401KDF

Manufacturer Part Number
MLX90401KDF
Description
Brushless DC Motor Controller
Manufacturer
MELEXIS [Melexis Microelectronic Systems]
Datasheet
Features and benefits
Ordering information
Part No.
MLX90401
Application examples
1 Pin configuration
3901090401
Rev 005
• 12V to 40V operating range
• BVDSS > 60V
• On-chip “boost” voltage allows use of all
• On-chip PWM oscillator
• PWM speed control via bottom drivers
• Handheld Battery powered applications:
• Electrical bicycles, wheelchairs, etc.
• Automotive applications:
10
11
12
1
2
3
4
5
6
7
8
9
N-channel drivers
Supply Voltage
V
Hall "A" Input
Hall "B" Input
Hall "C" Input
Fwd/Rev Input
Speed Adjust Input / Disable
Oscillator R/C
/Brake Input
Analog Ground
60°/120° Select Input
Power Ground
REF
o
o
o
Out
Figure 1: Pin configuration
Temperature Code
K (-40°C to 125°C)
Power tools (drills, screwdrivers, etc.)
Manual HVAC Blowers
Water and other pumps
Gate Bottom "A"
Gate Bottom "C"
Gate Bottom "B"
Cap Boost "C"
Cap Boost "A"
Cap Boost "B"
Feedback "C"
Feedback "A"
Feedback "B"
Gate Top "A"
Gate Top "B"
Gate Top "C"
Package Code
DF (300” SOIC24)
24
23
22
21
20
19
18
17
16
15
14
13
Page 1 of 13
2 General description
The MLX90401 is a three-phase brushless DC
motor controller, designed to meet the needs of
high volume, low cost motors with 60
electrical sensor phasing which do not require
the expensive options needed for servo or other
closed loop applications.
The use of CMOS technology offers dense logic
as well as high voltage (60V) driver capabilities.
The use of discrete low cost N-channel power
FETs reduces overall system cost and the
device provides all of the logic necessary to
interface Hall-effect position sensors to N-
channel power FETs. Upper N-channel power
FETs require a gate drive in excess of the
supply voltage V+, and with the device’s on-chip
“boost” voltage, the use of all N-Channel power
FETs is allowed. Control inputs are provided for
motor speed, forward or reverse direction,
disable, and braking. 60° or 120° electrical
sensor phasing can be set externally.
The device is offered in a 24 Lead Wide Body
SOIC package (DF).
Brushless DC Motor Controller
• Forward and reverse control
• Selectable 60° or 120° sensor electrical
• Undervoltage lockout
• Qualified for automotive applications
phasing
MLX90401
Data sheet
o
or 120°
Oct/05

Related parts for MLX90401KDF

MLX90401KDF Summary of contents

Page 1

Features and benefits • 12V to 40V operating range • BVDSS > 60V • On-chip “boost” voltage allows use of all N-channel drivers • On-chip PWM oscillator • PWM speed control via bottom drivers Ordering information Part No. Temperature Code ...

Page 2

Table of content 1 Pin configuration ..........................................................................................................1 2 General description ......................................................................................................1 3 Glossary of terms .........................................................................................................3 4 Pin definitions and description....................................................................................3 5 Absolute maximum ratings ..........................................................................................4 6 MLX90401 electrical specifications .............................................................................4 7 General description ......................................................................................................5 7.1 Overview .............................................................................................................................................. 5 7.2 ...

Page 3

Glossary of terms FET Field Effect Transistor PWM Pulse Width Modulation Undervoltage State in which the power supply voltage is lower than the operation range of the device. Overcurrent State in which the current flowing in a certain device ...

Page 4

Absolute maximum ratings Supply Voltage, V Output Voltage on pins Gate & Cap Boost Voltage on Pins 17,18,20,21,23,24 Power Dissipation, P Operating Temperature Range, T Storage Temperature Range MLX90401 electrical specifications DC Operating Parameters T = -40 ...

Page 5

Top output on resistance Bottom output on resistance Rise time Fall time Turn-on propagation delay Turn-off propagation delay Leakage current 7 General description 7.1 Overview The MLX90401 contains all functions for controlling three-phase brushless DC motors in open loop applications. ...

Page 6

Block diagram 5V Regulator (To Logic) V (1) S UVLO OSC - Sawtooth Osc R/C (8) 25kHz Oscillator (variable) - Speed Adj / + Disable (7) UVLO V (internal) REG - + 5V 3.5KΩ Debouncer /Brake (9) 5V 3.5KΩ ...

Page 7

Commutation decoding and output control logic An internal digital circuit converts the signals from the Hall-effect position sensors into the proper sequencing of top and bottom drive outputs. 60° or 120° sensor electrical phasing can be selected by an ...

Page 8

Pulse width modulation The use of pulse width modulation (PWM) provides an energy efficient method of controlling the motor speed by varying the average voltage applied to each stator winding during the commutation sequence discharges, the oscillator ...

Page 9

Undervoltage lockout Should the voltage level undervoltage condition disappears, to prevent improper drive of the power FETs. 7.9 Logic table Following table shows the output state in function of the inputs. It summarizes the different functions ...

Page 10

Application information 8.1 Evaluation Board An Evaluation Board for the MLX90401 called EVB90401 is available. The accompanying Application Note describes the Board, and gives extra information concerning the use of the MLX90401 in real-life applications. Consult our website www.melexis.com ...

Page 11

A Forward/Reverse switch is present; the Brake switch could be omitted depending on the application. • A jumper or fixed PCB track selects the type of motor (60/120 degrees electrical sensor spacing). • D1-3 and C6-8 are the bootstrap ...

Page 12

EN60749-15 Resistance to soldering temperature for through-hole mounted devices • MIL 883 Method 2003 / EIA/JEDEC JESD22-B102 Solderability For all soldering technologies deviating from above mentioned standard conditions (regarding peak temperature, temperature gradient, temperature profile etc) additional classification and ...

Page 13

Disclaimer Devices sold by Melexis are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. Melexis makes no warranty, express, statutory, implied description regarding the information set forth herein or regarding the ...

Related keywords