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This TIDA-00148 reference design features the TUSB9261DEMO which allows quick evaluation of system compatibility for connections to SATA devices used for automotive infotainment systems. The firmware used in TIDA-00148 is capable of supporting a single SATA drive such as a solid state drive: hard disk drive: DVD drive: and Blu-Ray drive. The TUSB9261-Q1 has also been fully regression tested for numerous devices which speeds development time for quicker release to market.

LMH6881: Making Differential Amplifier Design Easy

In this topology: the UCC28051 is a boost transition mode (TM) power factor corrector (PFC): which can rectify an AC input line voltage to 380V DC; the resonant LLC stage UCC25600 regulates the output to 24V/2A for an audio amplifier with feedback to the LLC controller: and 48V for the LED driver input. The flyback with UCC28610 in parallel generates 5V/3A for the system board and 5V/1A for standby power. In the LED driver stage: the 48V input voltage requires another front end boost stage to boost the output voltage to 80V: which connects to the eight-channel TLC5960 with 20LEDs at 120mA per string.This technique is the most common type of current LED backlight; the LLC design is easily implemented. The intelligent headroom voltage monitor (oriHVM™) automatically minimizes the power loss caused by the LED forward voltage change. Only a single additional resistor regulates the boost dc-dc output voltage.

The AD8376 is a dual channel, digitally controlled, variable gain wide bandwidth amplifier that provides precise gain control, high IP3, and low noise figure. The excellent distortion performance and high signal bandwidth make the AD8376 an excellent gain control device for a variety of receiver applications. Using an advanced high speed SiGe process and incorporating proprietary distortion cancellation techniques, the AD8376 achieves 50 dBm output IP3 at 200 MHz. The AD8376 provides a broad 24 dB gain range with 1 dB resolution. The gain of each channel is adjusted through dedicated 5-pin control interfaces and can be driven using standard TTL levels. The open-collector outputs provide a flexible interface, allowing the overall signal gain to be set by the loading impedance. Thus, the signal voltage gain is directly proportional to the load. Each channel of the AD8376 can be individually powered on by applying the appropriate logic level to the ENBA and ENBB power enable pins. The quiescent current of the AD8376 is typically 130 mA per channel. When powered down, the AD8376 consumes less than 5 mA and offers excellent input-to-output isolation, lower than ?50 dB at 200 MHz. Fabricated on an Analog Devices, Inc., high speed SiGe process, the AD8376 is supplied in a compact, thermally enhanced, 5 mm ? 5mm 32-lead LFCSP package and operates over the temperature range of ?40?C to +85?C.ApplicationsDifferential ADC drivers Main and diversity IF sampling receivers Wideband multichannel receivers Instrumentation Data Sheet, Rev. 0, 8/07

Demonstration circuit 3051A features the LTM4705, a high efficiency dual 5A or single 10A μModule® DC/DC regulator in a compact and low profile 6.25mm × 7.5mm × 3.22mm BGA package. The LTM4705 can take 3.1V to 20V input and generate 0.6V to 5.5V output (stepdown only). The DC3051A demo board is designed to take 6VIN to 20VIN to dual 5A jumper selectable outputs. The board operates by default at a fixed 1MHz and can be synchronized from 1MHz to 3MHz via the MODE/SYNC pin. With its high switching frequency and current mode architecture, a fast transient response to line and load changes is possible without sacrificing stability. The DC3051A can be used in forced continuous mode or pulse-skipping mode for low noise, or in Burst Mode® operation for high efficiency at light loads. Please see the LTM4705 data sheet for more detailed information. It is recommended to read the data sheet for the LTM4705 prior to making any changes to the DC3051A.

This design: implements a highly integrated single chip electricity metering solution: with support for Rogowski Coil current sensors. Hardware and software design files are provided to enable calculation of various parameters for multi-phase energy measurement: such as RMS current & voltage: active and reactive power and energies: power factor and frequency. The added hardware and software support for Rogowski Coils make it easy to interface with Rogowski coils with minimal hardware changes when migrating from traditional current transformers. The Rogowski coil current sense library implements an efficient software integration of the Rogowski output: enabling this to be a single chip solution for 3-phase e-metering. Software package also includes a dummy application for quick and easy evaluation of the hardware and software.

DC1850A-A: Demo Board for the LTC4366-1/LTC4366-2 High Voltage Surge Stopper.

This reference design is a Single-Chip Charge and Dynamic Power-Path Management IC solution. It is a complete bq24030 based circuit design and provides a convenient method to evaluate the operation and performance of the IC. The development solution includes a tested evaluation board; a user guide that contains the schematic: bill of materials: component placement: layout and the setup of the reference design; and the bq24030 data sheet. The performance of the reference design is optimized under a power supply of 5V typically. Charge current is limited to 2A.

CAN Products from National Semiconductor Users Guide and Application Note

The ADP2138 and ADP2139 are high efficiency, low quiescent current, synchronous step-down dc-to-dc converters. The ADP2139 has the additional feature of an internal discharge switch. The total solution requires only three tiny external components. When the MODE pin is set high, the buck regulator operates in forced PWM mode, which provides low peak-to-peak ripple for power supply noise sensitive loads at the expense of light load efficiency. When the MODE pin is set low, the buck regulator automatically switches operating modes, depending on the load current level. At higher output loads, the buck regulator operates in PWM mode. When the load current falls below a predefined threshold, the regulator operates in power save mode (PSM), improving light load efficiency.The ADP2138/ADP2139 operate on input voltages of 2.3 V to 5.5 V, which allows for single lithium or lithium polymer cell, multiple alkaline or NiMH cell, PCMCIA, USB, and other standard power sources. The maximum load current of 800 mA is achievable across the input voltage range.The ADP2138/ADP2139 are available in fixed output voltages of 3.3 V, 3.0 V, 2.8 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, 1.0 V, and 0.8 V. All versions include an internal power switch and synchronous rectifier for minimal external part count and high efficiency. The ADP2138/ADP2139 have internal soft start and they are internally compensated. During logic controlled shutdown, the input is disconnected from the output and the ADP2138/ADP2139 draw 0.2 ?A (typical) from the input source.Other key features include undervoltage lockout to prevent deep battery discharge, and soft start to prevent input current overshoot at startup. The ADP2138/ADP2139 are available in a 6-ball wafer level chip scale package (WLCSP).Applications PDAs and palmtop computers Wireless handsets Digital audio, portable media players Digital cameras, GPS navigation units

DC1701A: Demo Board for the LTC4098/LTC4098-1 USB Compatible Switching Power Managers/Li-Ion Chargers with Overvoltage Protection.

The PMP4308 is a 50V DC in 20A battery charger solution which uses Buck upside-down topology. PWM controller UCC2809 is selected in the design.

Demonstration circuit DC2247A is a synchronous 2MHz boost LED driver featuring the LT®3922. The LT3922 features a low EMI Silent Switcher architecture and an optional spread spectrum frequency modulation (SSFM) that further reduces EMI. It has a 2A/36V internal power switch, but the demo board has been configured to use a 4V to 28V input and thus has input overvoltage lockout set at 28V. It drives a single string of LEDs at 330mA up to 34V when the input voltage is between 7V and 28V. DC2247A comes with low EMI features including optimized layout, SSFM, and input and output filters. It passes CISPR 25 class 5 conducted and radiated EMI. The LT3922 is protected against both open and short LED conditions and reports these faults. It also includes thermal shutdown.