FTM_2013_i1305.pdf

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F U T U R E T E C H N O L O G Y M A G A Z I N E
In association with www.my-boardclub.com
Application Spotlight on
RF & Wireless
Component Focus: pages 2-11
Fairchild motor controller implements FOC in
dedicated coprocessor
Design Note: page 12
Understanding safety-agency test methods
for optocouplers
Application Spotlight: pages 13-20
NXP power transistors dedicated to RF-heating
applications
Technical View: pages 22-23
Better M2M design by thinking outside the
bit-pipe
I S S U E 1 3 0 5
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S T A R P R O D U C T
Advanced bus converters maximise
efficiency across load range
in brief
News
40V DC to 60V DC input for datacom
applications or a 36V DC to 75V DC input for
telecom applications. The NEB 1/8-brick series is
offered with power ratings ranging from 264W to
300W, while the NQB -brick series is available
in 420W to 468W configurations.
The default output voltage for all models is
preset at 12V DC. In addition, the NEB-D and
NQB-D digital-interface variants provide the
flexibility to adjust the output voltage
dynamically via PMBus for dynamic bus
applications. The NEB-D output voltage
can be adjusted from 6.9V DC to
13.2V DC, while the NQB-
D allows adjustment from
4.0V DC to 13.2V DC. For
higher power requirements,
optional droop load sharing
is offered in both series.
Additional features include insulation meeting
EN 60950 standards, 2250V DC isolation voltage,
and remote sensing. To address high-temperature
applications, both series offer an optional
baseplate for improved thermal performance. The
converters are pin and function compatible with
the Ericsson power modules BMR456 and
BMR457 series based on the FRIDA II platform.
CUI INC.
Multi-Tech strengthens medical industry
credentials
Multi-Tech says its recent certification according to the ISO
13485: 2003 medical industry quality-management system
validates the company’s continued commitment to quality
and will deliver extra value for all customers.
Multi-Tech’s external and embedded modems, routers
and gateways are used in a variety of industries, and all
customers can benefit from the changes the company has
made to its internal processes along the road to ISO 13485
certification. Applications in the medical field, in particular,
include transmitting patient data from homes or emergency
vehicles. A white paper, ‘Integrating M2M in Medical
Devices’, explains more about Multi-Tech’s solutions for
medical OEMs and can be downloaded from
www.multitech.com .
The latest fully regulated DC/DC
intermediate-bus converters from
CUI Inc., feature a 32-bit ARM ® -based
MCU and power-optimising firmware
to ensure peak performance across a
wide range of loading conditions.
Microchip speeds-up embedded GUI
development
Microchip has released Graphics Display Designer X (GDD
X), a visual design tool that accelerates completion of
Graphical User Interface (GUI) screens for applications using
Microchip’s 16- or 32-bit PIC MCUs. To streamline the
GUI-design process, GDD X provides a WYSIWYG
environment, and saves valuable design time by
automatically generating the C code needed for the user
interface.
GDD X enables development using Microchip’s Graphics
Library. It can be used as a stand-alone tool or as a plug-in
to Microchip’s free MPLAB X Integrated Development
Environment (IDE), and is available to run on Windows ,
Linux or Mac OS operating systems.
NQB and NEB smart converters are available in 1/4-brick or
1/8th-brick form factors
CUI’s NQB and NEB series advanced bus
converters achieve typical efficiency as high as
96.4% and are able to optimise efficiency from
20% to 100% of full load. This makes them ideal
for use in applications where loading conditions
can vary greatly. In addition, the firmware is
designed to handle input-voltage transients with
slew rates of up to 0.5V/s, while keeping the
output voltage within 10% and preventing
unwanted triggering of over-voltage protection.
The NQB series is housed in a -brick
57.9mm x 36.8mm x 11.3mm package, and the
NEB series is housed in a 1/8-brick package
measuring 58.4mm x 22.7mm x 10.2mm. Two
versions are available in each series. The NQB-D
and NEB-D variants feature a PMBus 1.2 digital
interface, while the NQB-N and NEB-N series are
offered without digital-communication pins for
conventional IBC requirements.
The PMBus interface allows designers to
configure and store parameters in the device’s
on-chip USER_STORE memory block.
Configurable parameters include output voltage,
voltage margining, fault management, precision
delay ramp-up, and start/stop, as well as settings
for features such as over-temperature, over-
current, and over-voltage protection.
Further options available include two input-voltage
range configurations, providing the choice of a
Lowest-cost MCUs enhance touchscreen-
interface design
The PIC12LF1552, part of the 8-bit PIC12 / 16F15XX
family, is Microchip’s smallest and lowest-cost PIC MCU
with hardware I 2 C support. Offered in the 2mm x 3mm
UDFN package, its features include a 4-channel 10-bit ADC
and a hardware-based Capacitive Voltage Divider (CVD).
The hardware CVD enables a more efficient
implementation of capacitive sensing for touch applications.
As a core-independent peripheral, it implements control
logic that enables automated sampling that effectively
reduces software size and minimises CPU usage. It also
provides automatic control of guard-ring drive and a
programmable sample-and-hold capacitance, to better
match larger touch or proximity sensors.
ENERGY
INDUSTRIAL
LIGHTING
MEDICAL
AUTOMOTIVE
SECURITY
CONSUMER TELECOMMS
APPLICATIONS
Telecom and networking equipment
Enterprise servers
Mainframes
Storage equipment
Video switching
FEATURES
Fully regulated
Industry-standard 5-pin package
Optional digital PMBus interface
Power-good indicator
High power density
Fast feed-forward regulation
2.9 million hours MTBF
Award for ON Semiconductor recognises
innovation in automotive
ON Semiconductor has won an Innovative Automotive
Semiconductor Technology Supplier 2012 award for its
NCV78663 power ballast and dual LED driver for
automotive front-lighting applications. The prestigious award
is part of Automobil Industrie magazine’s programme to
recognise the leading companies pushing back the
boundaries of automotive electronic technology. ON
Semiconductor and the NCV78663 were selected from
among companies and products spanning automotive
semiconductor, sensor and connector solutions.
02
Click here to BUY NOW
BUY NQB Series
NEB Series
NEB-D Series
NQB-D Series
BUY
BUY
BUY
01
Click here to BUY NOW
PIC12 Series
PIC16 Series
Series
Power
Input Voltage
Output Voltage
Output Voltage Range
Package
BUY
BUY
NEB-264
BUY
264W
36V-75V
12V
6.9V-13.2V
1/8-Brick
NEB-300
300W
40V-60V
12V
6.9V-13.2V
1/8-Brick
BUY
BUY
NQB-420
420W
36V-75V
12V
4.0V-13.2V
-Brick
Copyright 2013 Future Electronics Ltd. All trademarks contained herein are the
property of their respective owners. Applications for product samples, badge
boards, demonstration boards, Future-Blox Boards and other advertised
materials from Future Electronics are subject to qualification.
NQB-468
468W
40V-60V
12V
4.0V-13.2V
-Brick
2
E M A I L I N F O @ M Y- F T M . C O M F O R S A M P L E S A N D D A T A S H E E T S
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C O M P O N E N T F O C U S
Rugged high-commutation triac operates
at high voltage and temperature
The high repetitive peak off-state voltage of
800V and maximum off-state voltage slope of
1800V/s ensure high static stability with
immunity to false turn-on by dV/dt. A high
maximum on-state current slope of 100A/s
enhances resistance to fast current transients.
By also allowing a high commutating-current
slope of up to 25A/ms, as well as a high
commutating voltage, the BTA420-800BT
delivers superior commutation capability. The
gate-trigger current of 50mA and optimised
gate sensitivity ensure high noise immunity.
NXP SEMICONDUCTORS
ENERGY
INDUSTRIAL
LIGHTING
MEDICAL
AUTOMOTIVE
SECURITY
CONSUMER TELECOMMS
The NXP Semiconductors BTA420-
800BT 20A/800V triac joins NXP’s
high-commutation BTA series triacs,
featuring an innovative design
implementation ensuring high static
stability, high resistance to fast current
transients, and very robust
commutation performance.
APPLICATIONS
Heating controls
High-power motor control
High-power switching
Applications subject to high temperature
FEATURES
200A non-repetitive peak on-state current
1.5V maximum on-state voltage
60mA holding current
1mA maximum off-state current
TO-220AB (SOT78) package
The BTA420-800BT combines three-
quadrant operation for improved noise
immunity, planar-passivated technology
for ruggedness and reliability over a wide
operating-voltage range, and high
commutation capability at high operating
temperatures. It will commutate the full
RMS current of 20A at the maximum
rated junction temperature of 150C
without the aid of a snubber. This helps
to simplify circuitry, leading to increased
reliability in heating controls, white goods
and general high-power switching
applications.
FOR PARTS AND LATEST PRICING
03
Click here to BUY NOW
BTA Series
BUY
NXP's high-quality triacs help OEMs to offer end-users a lower cost of
ownership
Dedicated motor controller cuts system development
time and software demands
The IC features an Advanced Motor
Controller (AMC), comprising a configurable
processing core and peripheral circuits
specifically designed for motor control. The
AMC processes the tasks dedicated for
motor controls, such as the FOC and
‘Sensorless’ motor-control algorithms, PWM
controls, current sensing, real-time over-
current protection, and motor-angle
calculations. The AMC also supports
programmable deadtime and current-leading
phase control.
The embedded microcontroller core
provides motor-control commands to the
AMC through a communication interface.
System-control, user-interface,
communication-interface, and input/output-
interface functions are also programmed
through this core for different motor
applications. The two processors work
independently and complement each other.
The FCM8531 also integrates a power-
management unit and clock generator to
control low-power modes and housekeeping
functions, a protection block implementing
short-circuit and open-circuit protection, a
10-bit ADC with multiplexer and an 8-bit DAC.
The FEBFCM8531_B01H300A
development board is available for use with
Fairchild's Motor-Control Development System
(MCDS) IDE and MCDS Programming Kit.
FAIRCHILD SEMICONDUCTOR
The Fairchild Semiconductor FCM8531
motor-control IC simplifies system
design and reduces processor
overhead by executing critical motor-
control tasks in a dedicated motor-
control processor and providing an
MCS ® -51 (8051) compatible MCU for
application-level tasks.
ENERGY
INDUSTRIAL
LIGHTING
MEDICAL
AUTOMOTIVE
SECURITY
CONSUMER TELECOMMS
APPLICATIONS
Fans and blowers
Pumps
Power tools
e-bikes
Compressors
FEATURES
12kbyte microcontroller Flash memory
Three external microcontroller interrupts
Power-saving idle, stop and sleep modes
In-system programming
On-chip debug support
FOR PARTS AND LATEST PRICING
04
DETAILS
ON PAGE
21
CLICK TO VIEW EVALUATION BOARDS
The FCM8531 ensures consistent performance of both the motor
and the application
3
V I S I T T H E O N L I N E F T M M A G A Z I N E A T: W W W . M Y- F T M . C O M
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C O M P O N E N T F O C U S
Intelligent MEMS accelerometers save
power and processor cycles
Four devices are available, offering designers a
choice of 8/10-bit, 8/12-bit, 8/14-bit or 12-bit
output resolution on an I 2 C bus and up to eight
user-configurable interrupt sources
such as data ready, motion/freefall,
tap (pulse) and orientation. Inertial
wake-up interrupt signals can be
generated from any
combination of these functions
and mapped to two external
pins, which enables designers to
achieve overall power savings
and relieve the host processor
from continuously polling data.
The accelerometer can remain
in a low-power mode during
periods of inactivity, drawing
less than 1A in shutdown or
4A in standby.
All devices provide access to
high-pass filtered data as well
as non-filtered data in real-time,
which minimises the data
analysis required for functions
such as jolt detection and
enables faster transitions.
FREESCALE
ENERGY
INDUSTRIAL
LIGHTING
MEDICAL
AUTOMOTIVE
SECURITY
CONSUMER TELECOMMS
APPLICATIONS
Navigation devices
Mobile-device protection
Context-sensitive user interfaces
Gaming devices
Shock and vibration monitors
Freescale’s MMA845xQ
intelligent MEMS
accelerometers are tiny
3mm x 3mm low-power,
low-noise motion sensors
featuring integrated digital
signal processing and flexible
user options that enhance
control and help to minimise
system power consumption.
FEATURES
42A-250A normal-mode current
2g/4g/8g selectable full-scale range
I 2 C digital output interface
Self-test capability
Included in Freescale’s product-longevity
programme
Output
Resolution
Interrupt
Sources
Output
Data Rate
Supply
Voltage
Nominal
Output Noise
Part Number
1.56Hz to
400Hz
1.71V to
1.89V
MMA8450Q
BUY
12-bits
8
400g/Hz
FOR PARTS AND LATEST PRICING
05
BUY
MMA8451Q
14-bit/8-bit
7
1.56Hz to
800Hz
1.95V to
3.6V
BUY
MMA8452Q
12-bit/8-bit
6
99g/Hz
DETAILS
ON PAGE
21
CLICK TO VIEW EVALUATION BOARDS
BUY
MMA8453Q
10-bit/8-bit
6
CMOS logic families extend package choices,
deliver modern process advantages
slow-rising or slow-falling signals. Drawing less
than 10A at an ambient temperature of 25C,
the products also meet the needs of energy-
sensitive designs.
offering an improved power-to-performance
ratio and enhanced ESD classification.
The new logic families cover a wide supply-
voltage range from 2.0V to 5.5V, allowing use
in legacy 5V applications or in more modern
low-voltage, low-power designs. HCT and
AHCT versions provide TTL compatibility and
can replace 74LS bipolar devices. In addition,
all devices include optimised inputs with
hysteresis to help eliminate noise issues due to
DIODES INCORPORATED
Diodes Incorporated has added extra
package options for its HC, HCT, AHC
and AHCT CMOS logic families, giving
designers a choice of ten popular logic
functions, in quad and hex
configurations, in SO14
or TSSOP14 packages.
ENERGY
INDUSTRIAL
LIGHTING
MEDICAL
AUTOMOTIVE
SECURITY
CONSUMER TELECOMMS
APPLICATIONS
Computing
Consumer electronics
Domestic appliances
Building controls
Industrial automation
The quad devices include
dual-input AND, NAND, OR
and XOR gates and tri-state
buffers with Output-enable
low or high. The hex
arrangements comprise
single-input inverters,
unbuffered inverters, inverters
with open drains and
inverters with Schmitt-trigger
inputs. These are direct
replacements for mature
industry-standard logic
devices, and utilise modern
process technology to create
up-to-date logic functions
FEATURES
Suitable for low-voltage or 5V operation
Reduced noise sensitivity
Low power consumption
Enhanced ESD classification
Modern process technology
FOR PARTS AND LATEST PRICING
06
State-of-the-art logic can provide efficient solutions to circuit-design challenges
4
E M A I L I N F O @ M Y- F T M . C O M F O R S A M P L E S A N D D A T A S H E E T S
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C O M P O N E N T F O C U S
Gate-drive optocoupler protects IGBTs to enhance
system safety and reliability
(UVLO) protection is also provided.
In addition, the FOD8318 uses Fairchild’s
proprietary Optoplanar coplanar packaging
technology and optimised IC design to achieve
high noise immunity. This is reflected in high
common-mode rejection of 35kV/s and high
power-supply rejection.
The device is housed in a compact 16-pin
small-outline plastic package that meets the
8mm creepage and clearance requirements for
international safety-agency approvals.
FAIRCHILD SEMICONDUCTOR
ENERGY
INDUSTRIAL
LIGHTING
MEDICAL
AUTOMOTIVE
SECURITY
CONSUMER TELECOMMS
APPLICATIONS
Motor-control inverters
Industrial inverters
Induction heaters
Isolated IGBT drivers
General high-performance power systems
FEATURES
Supply voltage range: 15V to 30V
Operating-temperature range:
-40C to 100C
500ns maximum propagation delay over
full operating-temperature range
Safety and regulatory approvals:
UL1577 (4243V RMS for 1 min.)
DIN EN/IEC 60747-5-5:
1414V PEAK working insulation voltage
8000V PEAK transient isolation voltage
Fairchild Semiconductor’s FOD8318 is
an advanced optocoupler for IGBT or
MOSFET gate-drive applications, with
2.5A output-current capability enabling
fast switching of most IGBTs rated up
to 1200V/150A.
Integrated features of the FOD8318
include CMOS transistors of 1 typical
on-state resistance capable of driving
the IGBT from rail to rail, and high-speed
isolated feedback circuitry for fault
sensing.
IGBT-protection features are also built
in, including an active Miller-clamp
function to shut off the IGBT during large
over-voltage spikes without the need for
a negative supply voltage. Desaturation
detection is also provided, which
protects the IGBT at short-circuit by
monitoring its collector-emitter voltage.
When the voltage at the detection pin
increases above the threshold voltage,
the driver output stage executes a soft
IGBT turn-off. Under-Voltage Lockout
FOR PARTS AND LATEST PRICING
07
Click here to BUY NOW
FOD8318 Series
The active Miller clamp, plus desaturation detection and UVLO, protect the IGBT
to maximise system reliability
BUY
Automotive-qualified I 2 C I/O expander enhances
control of in-car electronics
outputs, 8-bit input-port and output-port
registers, and an 8-bit polarity-inversion
register allowing control of the input-port
register polarity. The PCA9538PW/Q900 is
similar to the PCA9554 but does not have an
internal I/O pull-up resistor, thereby
reducing power consumption when
I/Os are held low. The
PCA9538PW/Q900 also has a
Reset pin and a different
address range.
Other features include an
open-drain Interrupt output
pin, which is activated
when any input state
differs from the
corresponding input-
port register state
and thereby
indicates to the
system master that
an input state has
changed. The power-
on reset sets the registers to
their default values and initialises the
device state machine. The Reset pin allows
reset or initialisation without de-powering
the device.
NXP SEMICONDUCTORS
ENERGY
INDUSTRIAL
LIGHTING
MEDICAL
AUTOMOTIVE
SECURITY
CONSUMER TELECOMMS
APPLICATIONS
Car clocks
Car radios
Climate control
Instrument clusters
The NXP Semiconductors
PCA9538PW/Q900 I 2 C-bus I/O
expander provides eight GPIOs
with interrupt and reset,
and is AEC-Q100
qualified for use
in automotive
applications.
FEATURES
1A maximum standby current
Noise filter on SCL/SDA inputs
No glitch on power-up
Internal power-on reset
0Hz to 400kHz clock frequency
ESD protection: 2kV HBM, 1kV CDM
Latch-up testing to JEDEC Standard
JESD78
The PCA9538PW/Q900
joins NXP’s large family
of IC I/O expanders that
provide numerous choices
for designers seeking
additional I/Os to control
loads such as Advanced
Configuration and Power
Interface (ACPI) switches,
sensors, push-buttons, LEDs or
fans.
Internally, the
PCA9538PW/Q900 has an 8-bit
configuration register for assigning inputs and
FOR PARTS AND LATEST PRICING
08
5
V I S I T T H E O N L I N E F T M M A G A Z I N E A T: W W W . M Y- F T M . C O M
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