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May 2010 |
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| In this issue |
Featured Video |
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A/D Converter for Temperature Sensing: The ADS1146/7/8 family combines low power performance with high integration to deliver the ultimate temperature measurement ADC. The ADS1146 simplifies implementation of thermocouple, thermistor and RTD temperature sensing applications with a single-channel, 16-bit no missing codes, front-end solution.
Resources: Data sheet, block diagram, EVM, demonstration kit, ADCPro™ designs
- 16-bit single-cycle settling, no missing codes ADC (up to 2kSPS) with low-noise, integrated PGA
- Integrated features include 50/60-Hz simultaneous rejection mode, burnout detection, and on-chip oscillator
- Applications: RTDs, thermocouples, thermistors, pressure measurement, industrial process control
ADS1146: Price (1ku): $2.70 – $3.55 |
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Standalone Synchronous Switch-Mode Charge Controller: The bq24600 switch-mode charge controller can charge a 26-V Li-Ion stack with up to 10A. It offers a constant-frequency synchronous PWM controller, high accuracy, charge preconditioning, charge termination and charge status reporting.
Resources: Data sheet, block diagram, EVM
- 1.2-MHz synchronous buck controller
- External NMOS-NMOS FETs
- Applications: Netbooks, mobile Internet devices, ultra-mobile PCs, PDAs, handheld terminals; industrial, medical and portable equipment
bq24600: Price (1ku): $2.50 – $4.15 |
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Dual Synchronous Step-Down Controller for Low-Voltage Power Rails: The TPS53127 uses TI’s proprietary D-CAP2™ control topology, which features the industry’s fastest load transient response. It requires only 2x 22-µF output caps (example for 4-A output current) and no feedback loop compensation components.
Resources: Data sheet
- 4.5-V to 24-V input voltage range; 700-kHz switching frequency
- Integrated 5-V LDO
- Applications: Point-of-load regulation in low-power systems for wide range of applications, including digital TV power supply, networking home terminal, digital set-top box, DVD player/recorder, gaming consoles
TPS53127: Price (1ku): $2.35 – $2.60 |
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3.5-V to 60-V Input, 2.5-A, 2.5-MHz Step-Down SWIFT™ Converter with Eco-Mode™: The TPS54260 provides a high-current 2.5-A solution and protects against damaging line voltage transients up to 60V. The switching frequency is adjustable up to 2.5MHz, which allows a smaller inductor and capacitor to save board space.
Resources: Data sheet, block diagram, EVM, application note
- Integrated 200-mΩ N-channel FET for > 90% peak efficiency
- Pulse skipping Eco-Mode with 138-µA operating and 1.3-µA shutdown current
- Applications: 12-, 24-, and 48-V industrial and commercial low-power systems, GSM, GPRS modules in fleet management, e-meters, and security systems
TPS54260: Price (1ku): $1.90 – $2.35 |
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3-MHz, 2-A (and 1.6-A) Step-Down Converter in 2x2 SON Package: The TPS6206x is a family of highly efficient synchronous step-down DC/DC converters. With an input voltage range of 2.9V to 6V, the devices are a perfect fit for power conversion from a 5-V or 3.3-V system supply rail.
Resources: Data sheet, block diagram, EVM
- TPS62065 and TPS62067 deliver 2-A output current; TPS62060 delivers 1.6-A
- Power-save mode, clock dithering, output capacitor discharge
- Applications: POL, notebooks, pocket PCs, portable media players, DSP supply
TPS62065: Price (1ku): $1.30 – $1.55 |
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High Efficiency, Single Inductor Buck-Boost Converter with 4-A Switch: The TPS63020 is a power supply solution for products powered by either a two-cell or three-cell alkaline, NiCd or NiMH battery, or a one-cell Li-Ion or Li-polymer battery. Dynamic input current limit avoids system crash by dynamically limiting input current, and smart power good provides the earliest possible indication of a potential fault in Vout regulation.
Resources: Data sheet, block diagram, EVM, PSpice model, SwitcherPro™ design
- <100mm² total solution size
- Applications: Ultra-mobile PCs and mobile Internet devices, digital media players, digital still cameras and camcorders, cell phones and smartphones, personal medical products, industrial metering equipment, high-power LEDs
TPS63020: Price (1ku): $2.50 – $2.75 |
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Power Management IC for E Ink® Vizplex™-Enabled Electronic Paper Display: The TPS65180 is the first single-chip solution to power E-Ink displays for eBook applications, supporting panel sizes up to 9.7 inches. The device integrates a positive/negative charge pump, two LDOs, VCOM buffer and temperature sensor in a single IC.
Resources: Data sheet, video, e-book block diagram
- Complete reference design available from E Ink Corporation
- Supports OMAP™, EPSON ISIS and EPSON broadsheet timing controllers
TPS65180: Price (1ku): $2.35 – $2.60 |
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Green Phase-Shifted, Full-Bridge Controller with Synchronous Rectification: The UCC28950 enhanced phase-shifted controller implements advanced control of the full-bridge along with active control of the synchronous rectifier output stage; it provides best-in-class efficiency for high-performance power systems. The device features adaptive zero voltage switching (ZVS) that works over a wide input voltage and output load range.
Resources: Data sheet, block diagram
- Optimized for 90+ efficiency standards
- User-programmable operation in DCM mode with lowered frequency at light load (burst mode)
- Applications: Phase-shifted, full-bridge converters, server and telecom power supplies, industrial power systems, high-density power architectures, solar inverters, electric vehicles
UCC28950: Price (1ku): $4.25 – $4.70 |
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New Version of FilterPro™ Active Filter Design Application: FilterPro v3.0, the newest version of the design tool, offers a new and improved user interface and a more accurate and robust filter design engine. Updates include the ability to adjust passive element tolerances and view response variations; scale passive component values; and view and export filter performance data to Excel.
- Designers can create and edit designs easily using the Filter Design Wizard
- Can design multiple feedback (MFB), Sallen-Key, low-pass, high-pass, band-pass and band-stop filters using voltage feedback op amps
- Supports design file migration from FilterPro v2.0
FilterPro Price: Free
Download directly at www.ti.com/filterpro-dt |
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Ultra-Low Power Stereo Audio Codec with Embedded miniDSP: The TLV320AIC3253 features ultra-low power consumption, making it ideal for portable applications, and miniDSP, which enables louder and higher quality audio from small speakers. Single-supply operation (1.5V-1.95V) simplifies board design and reduces cost.
Resources: Data sheet, block diagram, software drivers, applications reference guide
- Support for digital microphones
- Integrated PLL for simpler clock distribution
- Applications: Mobile handsets, communications, portable computing
TLV320AIC3253: Price (1ku): $2.95 – $3.30 |
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4-Channel Half-Duplex M-LVDS Line Transceivers: The SN65MLVD040 provides four half-duplex transceivers for transmitting and receiving multipoint-low-voltage differential signals in full compliance with the TIA/EIA-899 (M-LVDS) standard. The device is optimized to operate at signaling rates up to 250 Mbps.
Resources: Data sheet
- Type-1 receiver incorporates 25-mV of input threshold hysteresis
- Type-2 receiver provides 100-mV offset threshold to detect open-circuit and idle-bus conditions
- Applications: Parallel multipoint data and clock transmission via backplanes and cables, low-power, high-speed short-reach alternative to TIE/EIA-485, cell base stations, central office switches, network switches and routers
SN65MLVD040: Price (1ku): $3.00 – $4.00 |
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| System Block Diagrams:
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| NEW LITERATURE AND VIDEOS |
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Guides:
LED Reference Design Cookbook |
| eLab™ Design Tools Overview |
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Application Notes:
Importing a SPICE Netlist into TINA-TI™ |
| Implementating a Variable-Length Cat5e Cable Equalizer |
| Using the CDC3S04 |
| Packaging Limits Range of Linear Regulators |
| Understanding and Designing an Active Clamp Current Mode Controlled Converter |
| Creating GSM Power Supply from TPS54260 |
| Quick-Start Guide for bq78PL114 with bq76PL102 Family Gas Gauges |
| LO Harmonic Effect of I/Q Modulator Sideband Suppression |
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Videos:
New Thank an Engineer Video: The latest video in the “Thank an Engineer” series envisions a world before GPS |
| Analog Switches in Audio Applications |
| TMP302: Analog Temperature Sensor |
| The Good LED Driver |
| UCC28810EVM-002 Single-String LED Design |
| Powering Processors With a Single Power IC |
| TSP92010: Light Bulb Replacement |
Motor Control eLab™ 10-Part Technical Video Series from TI, Avnet and Portescap (Parts 7, 8, 9 and 10)
Analog Signal Processing for Voltage/Current Sensing - Motor Ctl eLab Ch 7
PMSM Control Techniques: Sensored vs Sensorless - Motor Ctrl eLab Ch 8
Implementing Motor Systems - Motor Control eLab Chapter 9
Development Tools/Evaluation Board Demo - Motor Control eLab Chapter 10 |
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| COMPANY-AUTHORED ARTICLES IN THE MEDIA |
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| “Using SerDes in Fourth Generation Wireless Infrastructure,” by Ajinder Singh. Embedded Systems Design, January 2010. |
| “New controller addresses energy saving in server power system,” by Rais Miftakhutdinov and Zhen Yu. Power Systems Design, February 2010. |
| “Fundamentals of designing with MOSFET power switches,” by Phillippe Pichot. Power Management DesignLine.com February 2010. |
| “BAKER’S BEST: From high to low frequencies with IBIS,” by Bonnie Baker. EDN, February 2010. |
| “Using the DAC eXerciser program to evaluate digitial-to-analog converters,” by Lars Lotzenburger. |
| “New System Partitioning: Using new generation low-power audio converters with signal processing capabilities to partition your system can reduce time-to-market,” by Luca Cacioli and David Zaucha. Low-Power Design, March 2010. |
| “POWER TIP #20: Watch Those Unintended Resonant Responses: Understand how filter ringing can lead to power-supply failures,” by Robert Kollman. Power Management DesignLine, February 2010. |
| “Five Tips for Reducing Light Load Power Consumption,” by Brian King. Low-Power Design, February 2010. |
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Technology Days 2010: Make plans to join TI for a day packed with technical design sessions and technology exhibits. The seminars provide a learning forum where practical high-performance design solutions, tools, techniques, topologies and examples will be presented. Dates and locations are:
- June 8 – Atlanta, GA
- June 16 – Cleveland, OH
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| Sitara™ Day - June 23rd: Featuring Sitara ARM9™ and Cortex™-A8-based MPUs, the half-day seminar includes information about AM3505 and AM3517 MPUs and AM1x products. View useful demos of the Sitara family and receive an AM3517 Experimenter Kit with paid registration! |
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TI Microcontroller Survey: TI wants to understand your needs and perceptions when it comes to securing the right microcontroller for your system design. Please fill out our simple survey, geared for analog designers. |
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| CUSTOMER SUPPORT CONTACT INFORMATION |
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