FTMEMEANovember2014.pdf

(5827 KB) Pobierz

Component Focus: pages 2-15

Micrel’s DC-DC converter modules put to rest

concerns over EMI in switching regulator circuits

Design Note: page 17

‘Universal engine’ for the Internet of Things offers

ready-made wired and wireless connectivity

Application Spotlight: pages 18-26

Microchip’s 3DTouchPad, a development platform

for 3D and multi-touch 2D surface gestures

Board of the Month: page 27

Cypress’s development kit for integrated Bluetooth

Low Energy designs, with touch-sensing support

Application Spotlight on

HMI and Touch

NEWS

BRIEF

STAR

PRODUCT

Future Electronics signs worldwide

distribution agreement with Laird

Technologies

Future Electronics is to sell Laird

Technologies’ (www.lairdtech.com) range of

embedded wireless solutions worldwide

after agreeing a franchise distribution

agreement with the company. Laird

Technologies’ range of RF devices includes

Wi-Fi

, Bluetooth

and Range-Amplified

MultiPoint (RAMP) modules for machine-to-

machine communications and Internet of

Things applications.

Bluetooth Low Energy made simple

with programmable RF controller

CYPRESS SEMICONDUCTOR

Secondly, today’s Bluetooth devices such as

remote controls and mice often require a touch-

sensing input. With PRoC BLE, touch-sensing

control is fully integrated, and is

based on Cypress’s proven,

reliable capacitive sigma-delta

technology with GUI-based

configuration. The PRoC BLE

CapSense implementation

includes SmartSense Auto-tuning

and built-in two-finger gestures,

and provides market-leading

signal-to-noise ratio and water

tolerance.

The third advantage is the

built-in support for low-power

operation. Five easily configurable

power modes enable the

designer to optimise the system

design and prolong battery life.

The current in Deep Sleep mode

is just 1.3µA, and the device

draws an average of just 18.9µA

during a connection lasting 1s.

PRoC BLE is available in

56-pin QFN (7mm × 7mm) and

68-ball WLCSP (3.52mm ×

3.91mm) packages.

New high-voltage capacitive

touch-screen line driver

Microchip Technology has introduced a

stand-alone, integrated high-voltage line

driver, which designers can use to increase

the signal-to-noise ratio in advanced

projected-capacitive touch screens.

The MTCH652, which features an

integrated boost converter, can interface to

any touch controller via SPI to drive up to 19

Transmit channels at selectable voltages up

to 18V. An improved signal-to-noise ratio

makes the system more robust in noisy

environments, allows for the use of thicker

cover lenses, and reduces the number of

samples and the time required by the touch

controller to scan large displays.

PRODUCT

STAR

Cypress Semiconductor has introduced

a highly integrated RF controller to

provide an easy way for design

engineers to implement Bluetooth

Low

Energy products such as remote

controls, touch mice and toys.

PRoC BLE (Programmable Radio-on-Chip

Bluetooth Low Energy) includes a 32-bit,

48MHz ARM

Cortex

-M0 core and a Bluetooth

Low Energy RF transceiver. The chip also

provides for CapSense

capacitive sensing, and

includes a 12-bit ADC, eight PWM modules, 36

GPIOs, an LCD controller, and a choice of I

SPI, UART or I

S interfaces.

Cypress has equipped PRoC BLE with a

royalty-free BLE stack and BLE profiles

conforming to the Bluetooth 4.1 specification.

The Cypress solution offers three advantages

over other manufacturers’ BLE offerings. First, it

supports PSoC Creator, an easy-to-use, fully

integrated design environment for developing,

programming and testing a BLE application.

This includes an intuitive graphical user interface

with which the designer can configure the BLE

protocol stack and the required Bluetooth

profile in minutes.

In addition, the PRoC BLE, which includes an

integrated balun, only needs two external

components, whereas competitors’ BLE

devices require as many as nine. This means

that the RF circuit and antenna matching

network are much easier to design when using

the PRoC BLE.

ENERGY

INDUSTRIAL

LIGHTING

MEDICAL

AUTOMOTIVE SECURITY

CONSUMER TELECOMMS

APPLICATIONS

•

Human interface devices

Remotes

Toys

Wireless connectivity

FEATURES

Aavid buys high-tech thermal

management company Nuventix

Aavid Thermalloy has acquired Nuventix, the

manufacturer of fanless thermal

management solutions for LED lighting

applications. Nuventix is well known for its

patented Synjet

technology. The highly

reliable SynJet fanless air movers use

oscillating diaphragms, rather than frictional

parts, to create a constant flow of air over

the fins of compatible heat-sinks.

•

Transmit power: -18dBm to 3dBm

•

-92dBm Receive sensitivity

•

Up to 36 capacitive sensors

•

3-48MHz internal main oscillator

•

Operating temperature range:

-40°C to 85°C

141102:

FREE

BOARDS

For samples or pricing e-mail

info@my-ftm.com

property of their respective owners. Applications for product samples, badge

boards, demonstration boards, Future Electronics’ boards and other advertised

materials from Future Electronics are offered subject to qualification.

Ultra-low power Bluetooth development

See page 27 for details.

Orderable Part Number:

CY8CKIT-042-BLE

141101:

For more information e-mail

info@my-ftm.com

Apply now at my-boardclub.com

Fast-track board request code: FTM411A

EMAIL INFO@MY-FTM.COM FOR SAMPLES AND DATASHEETS

COMPONENT

FOCUS

New generation of 8-bit megaAVR MCUs

adds features and improves analogue

ATMEL

Atmel has introduced a new generation

of low-power 8-bit megaAVR MCUs,

based on its AVR

enhanced RISC

architecture. The first part to be

introduced, the ATmega168PB, is

available now, featuring 16kbytes of

Flash, 512bytes of

EEPROM and

1kbyte of RAM.

Additional

versions – the

ATmega48PB,

ATmega88PB and

ATmega328PB – will

be released in the first

half of 2015.

All new MEGA PB

MCUs include an AVR

core running at 20MHz and

featuring low-power picoPower

Technology. They also feature a 10-bit,

15ksamples/s ADC, a rail-to-rail analogue

comparator, real-time counter, and an RC

oscillator accurate to ±2% over the full voltage

and temperature range.

The new megaAVR MCUs also offer a

number of features not found in the existing

range of megaAVR devices:

• Unique serial number readable from

application code

• Wake-up from Power-down mode on receipt

of data at the USART interface

In addition, the ATmega328PB

also offers:

• QTouch peripheral touch

controller for buttons,

sliders, wheels and

proximity sensing

• On-chip

debugging.

The new

megaAVR

controllers also

benefit from

improved

analogue

performance. For instance, at

±2% over the full voltage and temperature

range, the internal voltage reference is more

accurate. In addition, the analogue comparator

has a reduced offset at low signal levels, and

can deliver its result via GPIO.

ENERGY

INDUSTRIAL

LIGHTING

MEDICAL

AUTOMOTIVE SECURITY

CONSUMER TELECOMMS

APPLICATIONS

•

Power tools

PC peripherals

Fire detectors and alarms

Flow meters

Temperature loggers

Door locks and alarm panels

Thermostats

Remote controls

FEATURES

•

Supply voltage range: 1.8-5.5V

•

Operating temperature range:

•

Two additional GPIOs in 32-pin packages

•

Alternative GPIO function for ADC inputs

-40°C to 105°C

141103:

FREE

BOARDS

For samples or pricing e-mail

info@my-ftm.com

New megaAVR MCUs are supported by the Xplained Mini,

a flexible evaluation platform with a large prototyping area

giving access to all MCU signals. Includes space for an

optional Arduino connector and a built-in debugger.

Orderable Part Number:

ATmega168PB-XMINI

Apply now at my-boardclub.com

Fast-track board request code: FTM411A

Fixed-frequency buck converters

offer excellent transient response

DIODES INCORPORATED

Diodes Incorporated has released the

AP65550 and AP65450, synchronous

buck converters with maximum 5A and

4A current ratings which offer a very

fast response to transient voltages.

The devices’ specifications

include a wide input-voltage

range of 4.5-18V, which

means that they are suitable

for use in 5V, 9V and 12V bus

systems.

The AP65x50 devices’

fixed-frequency, 650kHz,

emulated constant on-time

control scheme enables them

to maintain a stable output

even when the input-to-

output voltage ratio is high. It

also means that power

circuits using the parts require

few external components,

and can use either SP-CAP

or POSCAP type capacitors

AP65550: 92% peak efficiency

with a low ESR, or ceramic capacitors with an

ultra-low ESR.

Alternating seamlessly between continuous-

conduction mode at higher loads and

discontinuous-conduction mode at lighter

loads, the AP65x50 converters offer unusually

high efficiency when supplying light loads. This

helps designers to comply with stringent

power-consumption regulations. Peak

efficiency is rated at 92%.

For synchronous-rectification designs, the

AP65550 and AP65450 feature a 65mΩ

internal high-side switch and a 36mΩ internal

low-side switch. To protect downstream

components from damage and premature

ageing, the converters offer a complete suite

of protection features, including under-voltage

lock-out, thermal shut-down, over-current

protection and programmable soft-start.

ENERGY

INDUSTRIAL

LIGHTING

MEDICAL

AUTOMOTIVE SECURITY

CONSUMER TELECOMMS

APPLICATIONS

•

Gaming consoles

Set-top boxes

Distributed power systems

Home audio

Consumer electronics

Network equipment

FPGA, DSP and ASIC power supplies

FEATURES

•

Output voltage range: 0.76V to 6V

•

5A and 4A maximum continuous output

•

currents

Pre-biased start-up

141104:

For samples or pricing e-mail

info@my-ftm.com

VISIT THE ONLINE FTM MAGAZINE AT: WWW.MY-FTM.COM

COMPONENT

FOCUS

Ultra-fast 600V IGBTs ideal for welding equipment

INTERNATIONAL RECTIFIER

The 600V IGBTs have a positive temperature

coefficient for easy paralleling. They also

feature a maximum junction temperature of

175°C and low EMI emissions.

WORKING PARTNER

Vishay’s VRPower®: page 13

Avago’s ACPL-302J: page 5

International Rectifier has introduced

the IRGP66xx, a series of high-

performance 600V IGBTs. Featuring

extremely low conduction and

switching losses, the rugged, reliable

new family of devices is very well

suited to welding applications.

The IRGP66xx parts’ low conduction and

switching losses are attributable to the trench

thin-wafer technology used in their fabrication,

and contribute to the high efficiency with

which they operate. Supporting very fast

switching of 8-30kHz, the new devices are

co-packaged with a diode

which features soft recovery

Part Number

and a low reverse-recovery

charge. The diode’s

IRGP6630D

characteristics, which are

IRGP6640D

optimised for full-bridge

hard-switching converters,

IRGP6650D

underpin the IRGP66xx

IRGP6660D

devices’ high performance in

IRGP6690D

welding equipment and H-

IRGPS66160D

bridge converters.

ENERGY

INDUSTRIAL

LIGHTING

MEDICAL

AUTOMOTIVE SECURITY

CONSUMER TELECOMMS

APPLICATIONS

•

Welding equipment

H-bridge converters

FEATURES

•

5µs short-circuit rating

•

30A maximum continuous collector

•

Package

Continuous

Blocking

Collector Current

Voltage (V)

at 100°C (A)

TO-247

600

Super TO-247

160

1.65

Saturation

Voltage (V)

at 18A

current, at 100°C case temperature

1µA typical collector-to-emitter leakage

current

1.6V diode forward voltage drop at 6A

141105:

For samples or pricing e-mail

info@my-ftm.com

See us at: Hall A5/320

Magnetic contactless switch saves

board space with built-in capacitor

MELEXIS

Melexis has introduced an improved

version of its MLX92242 Hall-effect

switch/latch IC which enables easier

implementation and saves board space.

The MLX92242, which offers end-of-line

programmability and support for two-wire

operation, is widely used for position control

and position sensing, and as a contactless

switch. Accurately detecting the presence of a

magnetic field, it can be configured to switch in

magnetic fields ranging from 1mT to 64mT. A

magnetic latching range of -64mT to +64mT is

also achievable. The device’s built-in temperature-

compensation circuit counters the effects of

magnetic drift.

In the new version of the MLX92242, Melexis

has integrated a capacitor, so that the device can

be implemented directly into a design without

additional external components. The new

device is housed in the same industry-standard

TO-92/UA package as the original MLX92242.

The MLX92242 includes a Hall sensing

element, a voltage regulator accepting inputs of

2.7-24V, and a current sink-configured output

driver. It also features an EEPROM through

which end-of-line programming can be

executed, enabling the user to set magnetic

thresholds appropriate for the application.

In the new version of the MLX92242, the pin

ordering has been changed to provide for simpler

connection. The supply voltage and ground

pins are spaced 2.54mm apart so that they

match legacy fitting configurations, while also

simplifying assembly directly to lead frames and

insert-moulded connectors. This means that lead

forming, which could potentially compromise

the device’s operation, is not necessary.

As the MLX92242 permits two-wire operation,

as opposed to a conventional three-wire

arrangement, while still delivering full diagnostic

capabilities, a smaller wiring assembly is required.

ENERGY

INDUSTRIAL

LIGHTING

MEDICAL

AUTOMOTIVE SECURITY

CONSUMER TELECOMMS

APPLICATIONS

•

DC motor control

Headlamp position control

Seat position motor

Sunroof control

Contactless switches

Brake pedal position sensor

Electric parking brake

Throttle position sensor

Alarm and security systems

Magnetic interrupt switch

FEATURES

•

Programmable hysteresis: 0mT to 88mT

•

Programmable field: North or South

•

Programmable output polarity: direct or

•

32-bit ID on-chip

•

Reverse supply-voltage protection

•

Under-voltage lock-out protection

•

Thermal shut-down

inverted

141106:

Melexis contactless switch: 2.54mm pin spacing

For samples or pricing e-mail

info@my-ftm.com

EMAIL INFO@MY-FTM.COM FOR SAMPLES AND DATASHEETS

COMPONENT

FOCUS

New high-speed rectifiers offer excellent power density and efficiency

VISHAY

Vishay Intertechnology has introduced

27 new 4-10A FRED Pt Hyperfast and

Ultrafast recovery rectifiers, all housed in

the compact, low-profile eSMP

(TO-277A) series package.

Combining extremely fast and soft recovery

characteristics with low leakage current and

low forward-voltage drop, these AEC-Q101-

qualified rectifiers help designers to reduce

switching losses and over-dissipation.

The small footprint of the new devices

occupies a smaller PCB area than similar

rectifiers in DPAK packages. The FRED Pt

rectifiers also offer higher power density, helping

system designers to lower overall costs.

Part Number

VS-4CSH02HM3

VS-10CSH02-M3

VS-10CSH02HM3

VS-4CSH02-M3

VS-4ESH02-M3

VS-4ESH02HM3

VS-6CSH02-M3

VS-6CSH02HM3

VS-6ESH02-M3

VS-6ESH02HM3

VS-6ESH06-M3

VS-6ESH06HM3

VS-6ESU06-M3

VS-6ESU06HM3

Type

Hyperfast

Ultrafast

Diode

Variation

Dual

Single

Dual

Single

F(AV)

(A)

2x3

(V)

200

600

(V)

0.75

0.73

0.75

0.74

1.05

0.95

(ns)

Part Number

VS-8CSH02-M3

VS-8CSH02HM3

VS-10CSH01-M3

VS-10CSH01HM3

VS-4CSH01-M3

VS-4CSH01HM3

VS-4ESH01-M3

VS-4ESH01HM3

VS-6CSH01-M3

VS-6CSH01HM3

VS-6ESH01-M3

VS-6ESH01HM3

VS-8CSH01-M3

The rectifiers feature a planar structure and

platinum-doped lifetime control to provide great

ruggedness and outstanding reliability. The

FRED Pt parts are rated for operation at up to

175°C.

ENERGY

INDUSTRIAL

LIGHTING

MEDICAL

AUTOMOTIVE SECURITY

CONSUMER TELECOMMS

APPLICATIONS

•

Automotive engine control units

Anti-lock braking systems (ABS)

Automotive LED lighting

Telecoms DC-DC converter bricks

FEATURES

•

24ns reverse-recovery time

•

0.72V forward-voltage drop

•

Available with reverse voltage of 100V,

•

200V or 600V

Single- and dual-die configurations

Specified for freewheeling, output and

snubber operation

141107:

Type

Hyperfast

Diode

Variation

Dual

Single

Dual

Single

Dual

For samples or pricing e-mail

info@my-ftm.com

F(AV)

(A)

2x3

2x4

(V)

200

100

(V)

0.72

0.75

0.73

0.75

0.74

0.72

(ns)

New 2.5A optocoupler improves isolated

power supplies

AVAGO TECHNOLOGIES

Avago Technologies has unveiled the

ACPL-302J, a smart gate-drive

optocoupler which integrates various

protection and monitoring features and

simplifies gate drive design.

The ACPL-302J features an integrated flyback

controller for DC-DC converters and a full set

of fail-safe IGBT diagnostics, protection and

fault reporting, providing a complete and cost-

effective gate-drive solution. With a 2.5A rail-

to-rail output, the device is ideal for driving

IGBTs and power MOSFETs in industrial power

inverters and motor drives.

By integrating the flyback controller, the

ACPL-302J allows for a more compact system

design, with fewer discrete components and a

small, efficient transformer placed next to the

device. The integrated design also minimises

the effect of EMI and noise-coupling between

IGBT channels.

ACPL-302J: 2.5A rail-to-rail output

ENERGY

INDUSTRIAL

LIGHTING

MEDICAL

AUTOMOTIVE SECURITY

CONSUMER TELECOMMS

The device also features an integrated active

Miller clamp, detection of IGBT desaturation,

and under-voltage lock-out with feedback.

This helps to reduce bill-of-materials cost and

to simplify gate-drive design.

Int. Rectifier’s IRGP(S)66xx: page

APPLICATIONS

•

IGBT and power MOSFET gate drivers

AC and brushless DC motor drives

Renewable energy inverters

Industrial inverters

Switching power supplies

WORKING PARTNER

Vishay’s VRPower®: page 13

FEATURES

•

1,230V

PEAK

reinforced insulation voltage

•

8.3mm creepage and clearance

•

CSA, UL and IEC/EN/DIN EN 60747-5-5

•

safety approvals

20V regulated output voltage

2.5A maximum peak output current

250ns maximum propagation delay

30kV/µs minimum common-mode

rejection at 1,500V

141108:

For samples or pricing e-mail

info@my-ftm.com

VISIT THE ONLINE FTM MAGAZINE AT: WWW.MY-FTM.COM

Plik z chomika:

TirNaNog

Inne pliki z tego folderu:

Inne foldery tego chomika:

2015~