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TI Analog Connection
Your monthly update of new Analog products from TI
April 2006
To subscribe to the TI Analog Connection eNewsletter, please click here.
In
this Issue:
Power Management
Low-Power RF
Data Converters
Amplifiers & Linear
Interface
New Literature
Analog Training and Seminars
Company-Authored Articles in the Media
Customer Support Contact Information
POWER MANAGEMENT
96%-Efficient Buck-Boost DC/DC Converter: The TPS63000 buck-boost converter delivers up to 96% efficiency over an input voltage range of 1.8V to 5.5V and output current up to 1.2A. It extends battery life in 1-cell Li-Ion powered devices, all from a space-saving 3 x 3 mm2 QFN package.
- Automatic Transition Between Step-Down and Boost Mode
- Quiescent Current Less than 30 mA
- Applications: All Two- and Three-Cell Alkaline, NiCd, NiMH or Single-Cell Li Battery-Powered Devices; Portable Audio Players, PDAs, Cell Phones, Personal Medical Products, White LEDs
4.5-V to 52-V, Non-Synchronous Buck Controller: The TPS40200 is a non-synchronous PWM buck controller with a wide input voltage range (4.5V to 52V) that can convert down to a 0.7-V output. The device also has an on-chip 200-mA PFET driver.
- Onboard Vref: 700mV, Trimmed to 1% Accuracy
- Programmable Fixed Frequency: 35kHz to 500kHz
- Over-Current and UVLO Protection
- Applications: Industrial Control, Distributed Power Systems, DSL/Cable Modems, Scanners, Telecom
5.5-V to 36-V Input, 3-A Step-Down Converter: The TPS5430 is a wide-range input voltage DC/DC converter with an integrated MOSFET that steps down the voltage as low as 1.23V. The switching frequency is preset to 500kHz and can deliver up to 3-A output current at full temperature.
- Integrated 110-mΩ N-Channel MOSFET
- Internal Soft Start Time: 15ns
- Shutdown Quiescent Current: 17µs
- Applications: Set-Top Boxes, DVDs, Industrial and Car Audio Power Supplies
3-V to 6-V Input, 3-A DC/DC Converter: The TPS54317 is a 3-V to 6-V input DC/DC converter with integrated FETs that steps down the voltage as low as 0.9V. The switching frequency is synchronizable and adjustable to 1.6MHz, and the device can deliver up to 3-A output current at full temperature, up to 6-A peak output current.
- Frequency Set Range: 280kHz to 1600kHz
- Two Integrated 6-A Peak MOSFETs
- Sync Pin, Enable, PG
- Applications: POL Regulation for DSPs and FPGAs, Broadband, Optical
Dual-Output, Single-Inductor, Backlight Driver: The TPS6114x series are 1.2-MHz boost converters with two outputs that provide regulated voltage and current output. It is capable of driving one OLED sub-display and up to seven white LEDs for backlighting. Voltage and current can be individually programmed through external resistors.
- Topology: Boost DC/DC Converter
- Input Voltage: 3V to 6V
- Output Voltages: 2x 27V each (max)
- Applications: Mobile Phones with Main LCD + Sub-OLED Display
TPS61141: Price (1 ku) $1.85
Dual-Output, Single-Inductor Backlight Driver: The TPS6115x series are 1.2-MHz boost converters with two regulated current outputs for driving white LEDs. Each output current can be individually programmed through external resistors—
ideal for driving display and keypad backlights simultaneously.
- Input Voltage: 3V to 6V
- Output Voltages: 2x 27V each (max)
- Current Switch: 0.7A (max)
- Applications: LED Driver for Mobile Phones, Keypad Backlight
TPS61151: Price (1 ku) $1.65
Integrated Photo-Flash Charger and IGBT Driver: The TPS65560 is a complete solution for charging a photo flash capacitor from battery input and features an integrated power switch, IGBT driver, programmable analog peak current and control logic blocks.
- Integrated Power Switch: 50V
- Programmable Peak Current: 0.9A to 1.8A
- Applications: Digital Still Cameras, Optical Film Cameras, Camera Phones, Industrial
High-Efficiency, Phase-Shift, Full-Bridge CCFL Controller: The TPS68000 is a highly integrated power supply controller for CCFL applications. The device features analog dimming and burst dimming. To minimize RMS input current in a multi-controller application, the burst signal can be phase-shifted to the external PWM for distributed dimming.
- Input Voltage Range: 8V to 30V
- Full Bridge Topology with Integrated Gate Drives for 4 NMOS Switches
- Applications: CCFL Backlight Power Supplies for Monitors, LCD TVs, Notebook PCs
50-mA, High 24-Vin LDO: The TPS715xx series of LDOs offers high input voltage, low-dropout voltage, low-power operation and miniaturized packaging—ideal for powering battery management ICs.
- Low Quiescent Current: 3.2µA at 50mA load
- Available in 2.5V, 3V, 3.3V, 5V and adjustable versions
- Stable with Any Capacitor: >0.47µF
- Applications: Use with microprocessors
1-A LDO with Reverse Current Protection: The TPS73701 family of LDOs is easy to use and features low dropout—1mV (typ) at 1A. Adjustable outputs range from 1.2V to 5V and additional fixed outputs are available using an innovative factory EEPROM.
- Quiescent Current: 400µA
- PSRR: 37dB at 10kHz
- Start-up Time: 600µs
- Applications: Portable/Battery-Powered Applications
LOW-POWER RF
Narrowband, Multi-Channel RF Transmitter: The CC1070 is a single-chip, low-power, low-cost CMOS FSK/GFSK/ASK/00K RF transmitter for narrowband and multi-channel applications.
- Complies with EN 300 220 and ARIB STD-T67 standards in the frequency ranges 402 to 470 MHz and 804 to 940 MHz
- High integration, performance and flexibility
Low-Cost, Multi-Channel RF Transmitter: The CC1150 multi-channel RF transmitter is the world's lowest total system-cost radio intended for use in the 315, 433, 868 and 915 MHz frequency bands.
- Low power consumption and excellent radio performance
- Applications: Home and Building Automation, Wireless Alarm and Security Systems, Consumer Electronics
Low-Cost 2.4-GHz Transmitter: The CC2550 is a highly integrated multi-channel RF transmitter designed for low-power wireless applications in the 2.4 GHz Industrial Scientific Medical (ISM) band.
- Applications: Wireless Game Controllers, Wireless Keyboard/Mouse, Consumer Electronics, Wireless Audio, Sports and Leisure Equipment
DATA CONVERTERS
16-Bit, 2-MSPS SAR ADC with Serial LVDS Interface: The ADS8410 is a single-ended, analog input SAR ADC with a high-speed, serial LVDS interface and extremely low digital noise. The interface supports daisy-chained or cascaded devices and has a mode to select 16-/8-bit data frame.
- SNR: 87.5dB at 10kHz I/P 402 to 470 MHz and 804 to 940 MHz
- THD: -98dB at 10kHz I/P
- Power Dissipation: 290mW at 2MSPS
- Applications: Medical Instrumentation, High-Speed Data Acquisition Systems, Communications
12-Bit Parallel Input Multiplying DAC: The DAC7821 has µpower operation of 5µa at 5V, a settling time of .2µs, and a reference band of 10MHz.
- ±1 LSB INL MAX
- Power Supply: +2.5V to +5.5V
- Applications: Portable Battery-Powered Instruments, Waveform Generators, Industrial Process Control, ATE, Medical Instrumentation, Digitally-Controlled Calibration, Composite Video
Low-Power, Stereo Audio Codec with Differential Inputs: The TLV320AIC29 is a high-performance audio codec with 16-/20-/24-/32-bit stereo audio DAC, mono audio ADC with hardware AGC, stereo 16-Ω headphone amplifier and a mono BTL 8-Ω, 400-mW speaker amplifier.
- Sampling Rate: Up to 53ksps
- Onboard PGA
- Integrated, Fully Programmable PLL for Clock Generation
- Applications: SmartPhones, PDAs, MP3 Players, Digital Still Cameras
Low-Power Stereo Audio Codec: The TLV320AIC33 is a low-power, stereo audio codec with integrated stereo headphone amplifier. It can be configured with either 4 fully differential or 6 single-ended inputs.
- Audio DAC: Stereo 8-96ksps with 100dB SNR
- Audio ADC: Stereo 8-96ksps with 92dB SNR
- Power Consumption: 14mW (stereo playback)
- Applications: SmartPhones, PDAs, Portable Audio Equipment
AMPLIFIERS & LINEAR
Industrial Analog Current/Voltage Output Driver: The XTR300 is a special analog output driver for industrial control systems designed for sending control signals to machines, valves, heaters and other manufacturing equipment.
- Digitally Selected: Voltage or Current Out
- Vout: ±10V (up to ±17V at ±20V supply)
- Iout: ±20mA (linear up to ±24mA)
- Applications: Industrial High-Voltage I/O, PLC-Output Programmable Driver
INTERFACE
6-Port Gigabit Ethernet Transceiver: The TLK2226 provides for high-speed, full-duplex, point-to-point data transmissions based on the IEEE802.3z 1000-Mbps Ethernet specification. Each channel can operate at 125Mbps and the rate for each channel can be set through MDIO or automatically sensed and set by the device.
- Six 1.25-Gbps Synchronizable Transceivers
- Selectable Clock Tolerance Compensation
- Programmable High-Speed Output Pre-Emphasis
- Applications: Gigabit Ethernet, Backplane and Frontplane, Datacom/Telecom
Dual Bidirectional I²C Bus and SMBus Repeater: The PCA9515A is a BiCMOS integrated circuit intended for I²C bus and SMBus systems applications. The device contains two identical bidirectional open-drain buffer circuits that enable I²C and similar bus systems to be extended without degradation of system performance.
- Both buffers designed to support the standard low-level-contention arbitration of the I²C bus and clock stretching
- Open-Drain, 5.5-V Tolerant I²C I/O and Enable Input Support Mixed-Mode Signal Operation
- Applications: Notebook/Sub-Notebook PCs, Telecom, Servers
PCA9515A:
Price (1 ku) $0.66
Remote 8-Bit I²C and SMBus Low-Power I/O Expander with Reset and
Configuration Registers: The PCA9557 8-bit I/O expander for the
two-line bidirectional I²C bus is designed for 2.3-V to 5.5-V Vcc operation.
The device provides general-purpose remote I/O expansion for most microcontroller
families via the I²C interface [serial clock (SCL) and serial data (SDA)].
- Low Standby Current Consumption of 1 µA Max
- 400-kHz Fast I²C Bus
- Applications: Notebook/Sub-Notebook PCs, Telecom, Servers
NEW LITERATURE
RF Low Power Selection Guide: This new guide features the full short-range wireless Chipcon portfolio of low-power RF-ICs. The guide contains features and benefits, application areas, general characteristics, and diagrams, as well as selection tables for TI's ultra-low-power microcontrollers and complementary high-performance analog products. To download or order a printed copy, go to www.ti.com/chipcon
New Power Management Selection Guide: The Q2 2006 Power Management Selection Guide features a full line of high-performance products, ranging from standard linear to switch-mode ICs to plug-in and integrated power solutions. The selection guide includes a wide array of design factors, featured new products, graphic representations of portfolios and parametric tables. Download now.
New Audio and Industrial Solutions Guides: Solutions Guides cover a variety of products from across TI geared to a specific application area. They contain block diagrams, selection tables, discussion of relevant design issues, and featured products. Download the new Audio Solutions Guide and Industrial Solutions Guide now.
ANALOG TRAINING AND SEMINARS
2006 Precision Analog Applications Seminar: These one-day, in-depth technical seminars, held in the U.S. and Canada, will focus on common circuit applications that require precise measurement of temperature, light and weight. Topics include remote sensor monitoring, thermocouples, data acquisition systems and bridge measurement systems.
Portable Power Design Seminar: The Portable Power Seminar, taking place in 6 U.S. cities throughout May, will feature practical presentations of portable power management design issues and considerations, design techniques, topologies, tools, and examples. Topics include Battery Selection, Battery Cell Balancing, Increased Handheld Equipment Functionality, Thermal Considerations, LDO Dropout, Evaluation and Performance Optimization of Fully Integrated DC/DC Converters, Battery Authentication, White LED Flash, and Impedance Tracking.
MSP430 Day: Register to attend 430 Day, a free, three-hour lunch-and-learn session and receive a free eZ430-F2013 development tool. The session includes an overview, updates and eZ430 technical demonstrations. Lunch will be provided. Seating and development tools are limited. Register today to attend a location near you.
COMPANY
AUTHORED ARTICLES IN THE MEDIA
“Choosing SAR
versus High-Speed Delta-Sigma ADCs,” by Bonnie Baker. EDN,
Mar. 16, 2006.
“Advantages
of Interleaved Boost Converters for PFC,” by Michael O'Loughlin.
EDN, Mar. 30, 2006.
“Power
Management Partitioning for Next-Generation Mobile Handsets,”
by Patrick Heyer. EE Times Taiwan (in Chinese), March 2006.
“Gain
Consideration Using a TL431 ABD Optocoupler Feedback,” by John
Bottrill, EDAW China (in Chinese), February 2006.
CUSTOMER SUPPORT CONTACT INFORMATION
| Product Information Center | - Americas |
| Product Information Center | - Europe, Africa, Middle East |
| Product Information Center | - Asia/Pacific |
| Product Information Center | - Japan |
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