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March 2010 |
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| In this issue |
Featured Video |
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Standalone, Synchronous Switch-Mode Lithium Phosphate Battery Charger with System Power Selector: Designed for LiFePO4 batteries, the bq24620/30 is a switch-mode charge controller with high voltage and high current ratings. It offers a constant-frequency synchronous PWM controller, high accuracy, charge preconditioning, charge termination, input current limiting and charge status reporting.
Resources: Data sheet, samples, EVM, block diagram, quick search selection tool
- Dynamic Power Management reduces battery charge current when input power limit reached
- Internal soft start and loop compensation; low quiescent current
- Applications: Power tools, portable equipment, PDAs, handheld terminals, industrial and medical equipment, netbooks, mobile Internet devices, ultra-mobile PCs
bq24630 Price (1ku): $4.00 – $3.60 |
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16-Channel, Constant-Current LED Driver without LED Open Detection: The TLC59281 offers high-speed constant current switching transient time at a low cost. The constant-current value of all 16 channels is set by a single external resistor.
Resources: Data sheet, samples
- High speed switching with 10-nS transient time
- 20-nS blank pulse width for OUTn on/off control
- Applications: LED video displays, message boards, illumination
TLC59281 Price (1ku): $0.70 – $0.60 |
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Digital Dual Synchronous Buck Power Driver: The UCD7242 is a complete power system ready to drive two independent buck power supplies. High-side and low-side MOSFETs, drivers, current sensing circuitry and protection functions are all integrated into this device for minimum size and maximum efficiency.
Resources: Data sheet, samples, block diagram, digital power software
- Operational to 2-MHz switching frequency
- Temperature sense output – voltage proportional to chip temperature
- Applications: Digitally-controlled synchronous buck power stages, high-current, dual-phase VRM/EVRD regulators for desktop, server, telecom and notebook processors
UCD7242 Price (1ku): $2.65 – $2.95 |
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Digital PWM System Controller: The UCD9224 offers a fast and easy way to design point-of-load (POL) architectures with built-in digital power management capabilities including supply voltage sequencing, monitoring, tracking, and margining. A synchronization feature synchronizes the four (internal) rails with other UCD92xx voltage rails to eliminate beat frequencies and reduce the need for external filtering components.
Resources: Data sheet, samples, digital power software
- Digital power management capabilities through GUI (via PMBus)
- Two-output, 4-phase (UCD9224); four-output, 8-phase (UCD9248)
- Applications: Industrial/ATE, networking equipment, telecom equipment, servers, storage systems, FPGA, DSP and memory power
UCD9224 Price (1ku): $2.65 |
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DirectPath™ 2-Vrms Line Driver and Headphone Amp with Adjustable Gain: The DRV604 requires only a single 3.3-V supply to generate pop-free headphone performance and a 2-Vrms line driver output (on-chip charge pump generates the negative rail). The device is ideal for single-supply electronics where size and cost are critical design parameters.
Resources: Data sheet, samples, EVM
- Can drive 2Vrms into a 5-kΩ load
- Can generate a clean 40mW into 32-Ω load from a 3.3-V supply
- Applications: LCD and PDP TV, Blu-Ray players, DVD players, mini/micro combo systems, sound cards
DRV604 Price (1ku): $1.10 – $1.00 |
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Combo Motor Driver with DC/DC Converter: The DRV8808 is a general-purpose, highly robust combination of three high-current motor drivers with up to three DC/DC converters (up to 40-V input) designed to meet the needs of high-volume, cost-sensitive applications. The motor drivers can be configured to use internal sense resistors, while the DC/DC converters can step down from 40V to 1V in one step.
Resources: Data sheet, samples
- High level of integration reduces size and cost of multiple motor drives and regulators
- Robust protection circuitry includes over current protection (OCP)
DRV8808 Price (1ku): $7.40 – $6.70 |
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3.0-W Mono Class-D Audio Amplifier with Fast Gain Ramp SmartGain™ AGC and DRC: The TPA2028D1 provides louder and clearer audio while protecting speakers using DRC and AGC compared to other products using just the AGC limiter option. Programmable via digital I²C interface, the DRC/AGC function can be configured to automatically prevent distortion of the audio signal and enhance quiet passages that are normally not heard.
Resources: Data sheet, samples
- Selectable gain from –28dB to +30 dB in 1-dB steps
- Output power: 3.0W into 4Ω at 5V; –0.88W into 8Ω at 3.6V
- Applications: Wireless/cell handsets, PDAs, portable navigation devices, portable DVD players, notebook PCs, portable radio, portable games, educational toys, USB speakers
TPA2028D1 Price (1ku): $0.90 – $0.99 |
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850- to 950-MHz RF Front End: The CC1190 RF front end integrates a variety of functions typically performed by discrete components, including power amp, low-noise amp, switches, matching network, and inductors. The integration of these functions reduces design layout time, product test time, and compliance testing, typically cutting 35% of the time off a product design cycle.
Resources: Data sheet, samples, EVM, block diagram, 868-MHz reference design, 915-MHz reference design
- 4x4mm QFN
- Applications: 850- to 950-MHz ISM band wireless systems, wireless sensor networks, wireless industrial systems, IEEE 802.15.4 systems, smart grid wireless networks
CC1190 Price (1ku): $2.10 – $2.35 |
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4-Channel EMI Filter with Integrated ESD Protection: The TPDxF003 is a family of four, six, and eight-channel EMI filters in a space-saving DQD package. This low-pass filter array reduces EMI emissions and provides system-level ESD protection at the data ports.
Resources: Data sheet, samples
- Easy-to-use pin assignments
- Pi-style C-R-C topology with –3dB bandwidth at 200MHz
- Applications: LCD display interfaces, cell phones, SVGA video connections, PDAs
TPD4F003 Price (1ku): $0.18 |
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7-Channel VGA SPDT Switch: The TS3V712E has a high bandwidth of 1.36GHz and ensures high signal integrity for VGA applications. It also comes with two select pins for controlling VGA signals and control signals separately according to system requirements.
Resources: Data sheet, samples
- ESD performance-tested
- Applications: Notebook computers, analog VGA peripheral ports
TS3V712E Price (100u): $1.90 |
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MSP430 Microcontroller Value Line: This new family features 16-bit performance, up to 16-MHz operation, integrated intelligent peripherals, and ultra-low power at 8-bit prices for cost-sensitive applications such as safety, security and touch sense. $20 tools and integrated development environments feature full compatibility across the MSP430 platform.
- Up to 10x performance, including true 16-MIPS operation, and 50% greater code density, driving increased headroom for functionality over 8-bit MCU solutions
- Five power modes with ultra-low standby power of 0.4-mA and <1-ms wake-up time enable 10x battery life over 8-bit solutions
- Integrated intelligent peripherals—such as 10-bit ADCs, UART, comparator and serial communication—offload CPU tasks for increased power efficiency
MSP430 Value Line Price (100ku): $0.25 Sampling Now |
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System Block Diagrams: |
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| NEW LITERATURE AND VIDEOS |
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Guides:
Hybrid and Electric Vehicle (HEV) Guide: Start/stop solutions, battery management systems, inverter/motor drives, EV charger modules, DC/DC converters, solutions for e-bikes and small vehicles, and evaluation and demo boards. |
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Application Notes:
APA Outputs Connected to Other Devices |
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FlatLink™ Data Transmission System Using SN75LVDS83B/SN75LVDS82/SN75LVDS86A |
| Data Flash Programming and Calibrating the bq3060 Gas Gauge |
| Powering Freescale™ i.MX25 Using TPS65051 |
| Power for TMS320C5514/15 |
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Videos:
Introduction to Instrumentation Amplifiers |
| Selecting the Right Voltage-Level Translator |
| RS-485 and CAN Termination Techniques |
| 24-Channel LED Driver with High-Voltage Output - All Pattern |
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 Technology Days 2010: 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.
First dates and locations are:
- April 21 – Vancouver, BC, Canada
- April 27 – San Jose, CA (In conjuction with ESC)
- May 19 – MN
- May 26 – Chicago, IL
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| COMPANY-AUTHORED ARTICLES IN THE MEDIA |
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| “RS-485: Transient Protection for Bus Nodes,” by Thomas Kugelstadt. Industrial Control DesignLine.com, November 2009. |
| “Size is everything: The world's first 300mm analog fab should be a bonus for system designers,” by Taylor Efland and Bob Eklund. New Electronics, November 2009. |
| “PFC Sheds Light on THD,” by Mike O'Loughlin. Electronics Advocate, November 2009. |
| “Bluetooth® Low Energy – Not Just Another Radio Frequency Networking Protocol,” by Brian Blum. WD&D, December 2009. |
| “Solar Perspective: Is the solar energy glass half full?” by Dave Freeman, Nagarajan Sridhar, Nagarajan and Christopher Thornton. Power Systems Design, December 2009. |
| “POWER TIP #18: Your regulator's output voltage accuracy may not be as bad as you think,” by Robert Kollman. Power Management DesignLine.com, December 2009. |
| “BAKER'S BEST: Common-mode range can bite hard,” by Bonnie Baker. EDN, December 2009. |
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| CUSTOMER SUPPORT CONTACT INFORMATION |
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Visit TI’s E2E™ Community and interact
with your
peer engineers, TI engineers, and
other experts in
order to ask questions,
share knowledge, explore
ideas, and help
solve problems. |
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