To subscribe to the TI Analog Connection eNewsletter, please click here. November 2011
In this issue   Featured Video

Data Converters
Power Management
Switches and Multiplexers
Tools and Models
New Literature and Videos
Training and Seminars
Company-Authored Articles in the Media
Customer Support Contact Information

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Featured video
Go Green - Utilize New Linux Power Management API to Lower System Cost

Featured Block Diagram
Featured Block Diagram
Lighting: Bulb Replacement

Featured EVM
Featured EVM
EVM for Nano Power Energy Harvesting and WSN Applications


16-Bit ADC with Integrated MUX, PGA, Temperature Sensor, Oscillator and Reference: The 4-channel, 16-bit ADS1118 is offered in small, leadless QFN-10 and MSOP-10 packages. It has an integrated temperature sensor guaranteed at 0.5° C max accuracy for thermocouple-based temperature measurements. Consuming 150µA in continuous mode, the ADS1118 is ideal for use in portable applications.
Resources: Data sheet, block diagram, evaluation module, IBIS model

  • Integrated 16-bit ADC, MUX, PGA, temperature sensor, oscillator and reference
  • Data rate: 10SPS to 860SPS
  • Applications: Portable instrumentation, factory automation and process controls, and temperature measurement including: thermocouple measurement, cold junction compensation and thermistor measurement

ADS1118: Price (1ku): $2.25 - $2.55 Buy NowDigi-Key -- Buy now!

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LCD Bias Solution for LCD Panels with 6-Channel WLED Driver: The TPS65142 integrates the LCD bias and the WLED driver in a single 32-pin, 6x3mm² QFN package, providing a compact solution to the bias power and the WLED backlight in note-pc TFT-LCD panels. The device features a boost converter, a positive charge pump regulator, and a negative charge pump regulator to power the source drivers and the gate drivers. A 150-mA unity-gain high-speed buffer is offered to drive the VCOM plane.
Resources: Data sheet, block diagram

  • Integrated bias and backlight power
  • 2.3 V to 6 V input voltage range for bias
  • Applications: LCD displays, LCD panels using GIP/ASG, small (5V input) TVs, notebooks and tablets

TPS65142: Price (1ku): $1.35 Buy NowDigi-Key -- Buy now!


High-Efficiency 20-A Synchronous Buck Converter in PowerStack™ Package: TPS53353 is a D-CAP™ mode, 20-A synchronous switcher with integrated MOSFETs designed for ease of use, low external component count, and space-conscious power systems. This device features 5.5-mΩ / 2.2-mΩ integrated MOSFETs, accurate 1%, 0.6-V reference, and integrated boost switch.
Resources: Data sheet, evaluation module, SwitcherPro™ Design Tool, Power Stage Designer

  • Conversion input voltage tange: 3V to 15V
  • 5-V LDO output
  • Supports single tail input
  • Applications: Servers, embedded PCs, switching power equipment, routers and printers

TPS53353: Price (1ku): $3.95


Complete DDR2, DDR3 and DDR3L Memory Power Solution Synchronous Buck Controller: The TPS51916 provides a complete power supply for DDR2, DDR3 and DDR3L memory systems in the lowest total cost and minimum space. It integrates a synchronous buck regulator controller (VDDQ) with a 2-A sink/source tracking LDO (VTT) and buffered low noise reference (VTTREF). The VTTREF tracks VDDQ/2 within excellent 0.8% accuracy.
Resources: Data sheet, block diagram, evaluation module, PSpice model, reference design

  • Synchronous buck controller (VDDQ) with conversion voltage range of 3V to 28V and selectable D-CAP™ or D-CAP2™ modes
  • Selectable 300kHz/400kHz/ 500kHz or 670kHz
  • Applications: DDR2/DDR3/DDR3L memory power supplies, SSTL_18, SSTL_15, SSTL_135 and HSTL termination

TPS51916: Price (1ku): $1.00 - $1.15 Buy NowDigi-Key -- Buy now!


Dimmable Quasi-Resonant LED Lighting Controller: The TPS92070 is an advanced PWM controller ideal for use in low-power, offline, LED lighting applications. The integrated dimming interface circuit of the TPS92070 features a non-dissipative dimmer trigger control circuit. The TPS92070 controller provides DC LED current with no photometric ripple effects. The DC current also results in higher efficacy of the LEDs.
Resources: Data sheet, block diagram, evaluation module, PSpice model

  • Integrated TRIAC dimmer management        .
  • Accurate LED current regulation via precision internal amplifier
  • Applications: Retrofit LED lighting-bulb replacement, LED ballasts, LED downlights, cove lighting

TPS92070: Price (1ku): $0.95 - $1.25 Buy NowDigi-Key -- Buy now!


Single-Channel, Current-Limited USB Power Distribution Switch: The TPS20xxC power-distribution switch family is intended for applications such as USB where heavy capacitive loads and short-circuits are likely to be encountered. This family offers multiple devices with fixed current-limit thresholds for applications between 0.5A and 2A.
Resources: Data sheet, block diagram, evaluation module, PSpice model

  • USB-compliant current protection in a standard footprint
  • Output discharge drains load at shutdown
  • Applications: USB ports/hubs, LCD/digital TVs, set-top boxes (STBs) and VOIP phones

TPS2051C: Price (1ku): $0.45 - $0.55 Buy NowDigi-Key -- Buy now!

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4-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation: SN74AVC4T234 is a unidirectional voltage level translator (VLT) that eliminates the need for a direction-control pin on the processor. It offers low operating voltage (0.9V) and low propagation delay (3.7ns) in a 2mm x 1.4mm package. This device prevents damaging current backflow when it is powered down and is fully specified for partial power-down applications.
Resources: Data sheet, evaluation module, IBIS model

  • Operating voltage range of 0.9V to 3.6 V
  • Up to 380-Mbps data rate
  • 4-bit unidirectional translator
  • Applications: Mobile phones, smartphones, tablet, eBooks, netbooks, notebooks and portable devices

SN74AVC4T234: Price (1ku): $0.60 Buy NowDigi-Key -- Buy now!

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High-Speed 2:4 Differential Multiplexer / Demultiplexer: The TS3DS10224 is a 2:4 bidirectional multiplexer for high-speed differential and single ended signal applications (up to 720 Mbps). The TS3DS10224 can be used in a 1:4 or dual 1:2 multiplexer/demultiplexer configuration. The TS3DS10224 offers a high BW of 1.2 GHz with channel rON of 13Ω (typ). The TS3DS10224 can also be used to fan out a differential or single ended signal pair to two ports simultaneously (fan-out configuration). The BW performance is lower in this configuration.
Resources: Data sheet, HSpice model

  • One differential 1:4, two differential 1:2 and fan out 1:2 configurations
  • High bandwidth of >720MHz and low rON of 13Ω typ      
  • ESD performance ±8-kV contact discharge does not require external ESD protection
  • Applications: Notebooks, PDAs, eBook, tablets, display port Aux channel multiplexing and USB2.0 multiplexing

TS3DS10224: Price (1ku): $0.90 Buy NowDigi-Key -- Buy now!


5.5-V/2-A Load Switch with Controlled Rise Time: The TPS22913 is a small, low rON load switch with controlled turn on. The device contains a P-channel MOSFET that can operate over an input voltage range of 1.4V to 5.5V. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals. The TPS22913 is active high enable.
Resources: Data sheet, evaluation module

  • Input voltage range: 1.4V to 5.5V
  • Low ON-resistance - rON = 60mΩ at VIN=5V
  • Applications: Smartphones/wireless handsets, portable media players, portable industrial/medical equipment, DTV/IP set top boxes, fingerprint biometrics, digital cameras

TPS22913B/13C: Price (1ku): $0.24

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Partial list of models released October 2011:
SwitcherPro™: TPS54331, TPS84621, TPS84610

SPICE Macro: TPS53211, TPS54228, TPS54821, TPS62400, TPS780180300, TPS62060, TPS652510, TPS65258

IBIS: TSC2004, TUSB1310A

Complete list of models and software

Devices supported by SPICE and SwitcherPro models

New Additions to the TI WEBENCH® Toolset:

Switchers: TPS40210, TPS54478
LDOs: TPS7A3001, TPS720105

And 105 different processors!
And 44 MOSFETs!

Try them from the WEBENCH start panel on

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•  Lighting: Architectural Lighting

•  Lighting: Down Light / Low Bay

•  Lighting: Streetlight / AreaLight / HighBay / MidBay
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Power Management Solutions for 16-Bit C5000™ Ultra-Low Power DSPs
Low Dropout Regulators Quick Reference Guide
LED Lighting Reference Design Cookbook II
Application Notes:
Clock Jitter analyzed in the Time Domain, Part 3
Design an Analog Front-End for a Power-Line Communications Modem Using AFE031
Intelligent Stepper Motor Driver with DRV8811/18/24/25
Load Sharing Concepts: Implementation for Large-Signal Applications
Converting Single-Ended Video to Differential Video in Single-Supply Systems
A Boost-Topology Battery Charger Powered from a Solar Panel
Isolated RS-485 Transceivers Support DMX512 Stage Lighting and Special-Effects App
Industrial Data-Acquisition Interfaces with Digital Isolators
Delta-Sigma ADC Design for Bridge Sensor Applications
A Glossary of Analog-to-Digital Specifications and Performance Characteristics
POR and Resets in TSC2004/5/6
Understanding Low-Amplitude Behavior of 11-Bit ADCs
TUSB121x USB2.0 Board Guidelines
Understanding Schmitt Triggers
Choosing an Appropriate Pull-Up/Pull-Down Resistor for Open Drain Outputs
How to Review a Multicell Switching Charger Schematic
Thermistor Selection Guide for Texas Instruments Advanced Fuel Guages
Powering the DM335 and DM355 with the TPS650061
LED Driver Based on UCC28060 Interleaved AC/DC Single Stage Flyback
Powering the TMS320C6745 and TMS320C6747 with the TPS650061
bq2000 in Constant Voltage Phase for Li-Ion Battery
OPA2836 ADC Amp Family Drives SAR ADC to Full Performance
Compensating for Sensor Drift and Nonlinearity
Calibrating Bridge Sensors Using Multi-Cal Kit
Discover Texas Instruments' Latest Operational Amplifiers
Thermocouple Measurements Using ADS1118
ADS1118 Performing Thermocouple Measurements
USB: From Introduction to Rapid Development
TPS40400: PMBus Analog Controller
Dimmable AC/DC LED Lighting Controller TPS92070
Introduction to Wireless Power Concepts and the Qi Standard
New Innovative Power ICs from TI
Powering the Xilinx® 7-Series FPGAs - Part 1
Powering the Xilinx® 7-Series FPGAs - Part 2
Powering the Xilinx® 7-Series FPGAs - Part 3
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Technology Days 2011: Interested in a full day of technical presentations on a variety of topics including the newest products, TI solutions in key application spaces and the latest technology innovations on the horizon? Then plan on attending one of the upcoming 2011 Technology Days.
• December 8    San Jose, CA
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How 'real time' are real-time systems?,” by Heath Gallimore. Electronic Products, August 2011.
Trends in smart grid and alternate energy,” by Nagarajan Sridhar. ECN, July 2011.
Metrics to consider when choosing a PAN or WAN interface for telehealth applications,” by Iboun Sylla. Wireless Design & Development, August 2011.
Challenges in parallel data acquisition systems for MRI,” by Gugliomo Sirna and Vinod Paliakara. Electronic Products, August 2011.
Haptics technology: picking up good vibrations,” by Eric Siegel. Medical, July 2011.
SIGNAL CHAIN BASICS #55: Digital features in high-speed digital-to-analog converters,” by Robert Keller. Planet Analog, July 2011.
Power Tip #37: Trade AC-line range for input-capacitor ripple current,” by Robert Kollman. Power Management, July 2011.
Power Tip #38: Simple latch circuit protects power supplies,” by Robert Kollman. Power Management, August 2011.
Making synchronous rectifiers green,” by Michael O'Loughlin. EDN Asia, July 2011.
How to make early thermal assessments and decisions using a simple resistor network,” by Matt Romig. ECN, August 2011.
Methods of estimating component temperatures - Part 1,” by Mat Romig and Sandra Horton. EE Journal, July 2011.
Methods of estimating component temperatures, Part 3 – board temperature,” by Matt Romig and Sandra Horton. EE Journal, July 2011.
BAKER'S BEST: Use an RC filter to 'deglitch' a DAC,” by Bonnie Baker. EDN, July 2011.
Simplified phase-shifted full-bridge converter design,” by Micael O'Loughlin. Power Electronics Technology, August 2011.
A simple algorithm for microstepping a bipolar stepper motor,” by Jose Quinones. Embedded Systems Design, July 2011.
Soundbar design from start to finish: setting design specifications,” by Dafydd Roche. Electronic Design, July 2011.
Discontinuous conduction brings issues to current-mode converters,” by John Bottrill. EDN, July 2011.
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