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Switches and Multiplexers TS3A4741 0.9-Ohm Low-Voltage Single-Supply Dual SPST Analog Switch - FeaturesLow ON-State Resistance (ron )0.9 Max (3-V Supply)1.5 Max (1.8-V Supply)0.4- Max ron Flatness (3-V Supply)1.6-V to 3.6-V Single-Supply OperationAvailable in SOT-23 and MSOP PackagesHigh Current-Handling Capacity (100 mA Continuous)1.

Switches and Multiplexers TS3A4742 0.8-Ohm Low-Voltage Single-Supply Dual SPST Analog Switch - FeaturesLow ON-State Resistance (ron )0.9 Max (3-V Supply)1.5 Max (1.8-V Supply)0.4- Max ron Flatness (3-V Supply)1.6-V to 3.6-V Single-Supply OperationAvailable in SOT-23 and MSOP PackagesHigh Current-Handling Capacity (100 mA Continuous)1.

Switches and Multiplexers TS3L500AE 16-Bit to 8-Bit SPDT Gigabit LAN Switch With LED Switch and Enhanced ESD Protect -

Fairchild Semiconductor's TinyBuck DC – DC Buck Regulator, Wins EDAW-Nikkei Electronics China's "Best Innovative Product Award" for 2007 - FAN2106 is the Industry's Smallest, Fully Integrated 6A, 24V-input Synchronous Buck Regulator

Interface ISO7220B Dual Channel, 2/0, 5Mbps Digital Isolator - The ISO7220 and ISO7221 are dual-channel digital isolators. To facilitate PCB layout, the channels are oriented in the same direction in the ISO7220 and in opposite directions in the ISO7221. These devices have a logic input and output buffer separated by TI's silicon-dioxide (SiO2) isolation barrier, providing galvanic...

Interface ISO7221B Dual Channel, 1/1, 5Mbps Digital Isolator - The ISO7220 and ISO7221 are dual-channel digital isolators. To facilitate PCB layout, the channels are oriented in the same direction in the ISO7220 and in opposite directions in the ISO7221. These devices have a logic input and output buffer separated by TI's silicon-dioxide (SiO2) isolation barrier, providing galvanic...

Interface SN65HVS880 Eight channel, nominal 24V digital-input serializer for industrial digital inputs - The SN65HVS880 is a 24-V, eight-channel, digital-input serializer for high-channel density digital input modules of PC and PLC based systems in industrial automation. In combination with galvanic isolators the device completes the interface between the 24-V sensor outputs of the field-side and the low-voltage controller inputs...

Power Management BQ24315 Overvoltage & Overcurrent Protection IC & Li+ Charger Front-End Protection IC - The bq24315 is a highly integrated circuit designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage, the input current, and the battery voltage. The output of the bq24315 acts a linear regulator. The output is regulated to 5.5V for inputs between...

Switches and Multiplexers TS3A44159 0.45-Ohm Quad SPDT Analog Switch Quad-Channel 2:1 Multiplexer/Demultiplexer with Two Controls - FeaturesSpecified Break-Before-Make SwitchingLow ON-State Resistance...

GCT SEMICONDUCTOR ANNOUNCES THE INDUSTRY'S FIRST SINGLE-CHIP SOLUTION SUPPORTING BOTH MOBILE WiMAX IEEE 802.16e WAVE 2 AND WiFi 802.11 b/g - GCT's highly integrated single-chip, demonstrated at CTIA in Las Vegas, April 1-3, provides a total solution for Wireless Terminal applications requiring dual connectivity of Mobile WiMAX and WiFi.

AD1984A: HD Audio CODEC, 4DACs/4ADCs, exceeds Microsoft Vista Premium performance - The AD1984A audio codec and SoundMAX® software provide superior high definition audio quality that exceeds Vista Premium performance. The AD1984A has two 192 kHz DAC pairs, two 192 kHz ADC pairs, a S/PDIF output, a 2-channel digital microphone interface, and digital and analog PCBeep.

AD1883: HD Audio CODEC, 4DACs/4ADCs, exceeds Microsoft Vista Premium performance for notebooks - The AD1883 audio codec and SoundMAX® software provide superior high definition audio quality that exceeds Vista Premium Performance for notebooks. The AD1883 has two 192 kHz DAC pairs, two 192 kHz ADC pairs, a S/PDIF output, a 2-channel digital microphone interface, and digital and analog PCBeep.

AD1884A: Audio CODEC, 4DACs/4ADCs, exceeds Microsoft Vista Premium performance for notebooks - The AD1884A audio codec and SoundMAX® software provide superior high definition audio quality that exceeds Vista Premium Performance for notebooks. The AD1884A has two 192 kHz DAC pairs, two 192 kHz ADC pairs, a S/PDIF output, and digital and analog PCBeep.

MAX19693 - 12-Bit, 4.0Gsps, Wideband DAC Delivers Industry-Leading Dynamic Performance at Lowest Power - The MAX19693 is a 12-bit, 4.0Gsps digital-to-analog converter (DAC) that is optimized for direct digital synthesis of high-frequency and wideband signals in the first Nyquist zone.

DS3991 - Low-Cost, Single-Channel CCFL Controller Reduces BOM Cost for LCD Backlighting - The DS3991 is a low-cost CCFL controller for CCFLs that are used to backlight LCD panels. This device minimizes BOM cost for LCD backlighting.

Vishay Releases New VEMT Series of Silicon NPN Phototransistors

Vishay Releases New VEMT Series of Silicon NPN Phototransistors

Featuring 2-µs rise and fall times and± 60° angle of half intensity, devices are 100% compatible with current TEMT ceries for easy replacement. Devices in the VEMT series serve as pin-to-pin and functional equivalents for the current TEMT series of phototransistors, enabling simple and quick migration to meet lead (Pb)-free soldering requirements. [Read more...]

Power Management TPS60255 7-Channel, High Efficiency 175-mA Charge Pump for White LED Backlight

03.04.2008 15:30 - Source: Texas Instruments

Features

2.7 V to 6.0 V Input Voltage Range
1× and 1.5× Charge Pump
Auto Switching Between 1× and 1.5× Modes
750 kHz Charge Pump Frequency
Seven Individually-regulated WLED Current Sinks
Single- Wire Interface for Dimming and ON/OFF Control
25 mA max LED Current for Six Current Sinks
One 80 mA Current Sink
Open WLED Detection
Built-in Soft Start and Current Limit
16-pin, 3 mm × 3 mm QFN Package
APPLICATIONS
- Cellular Phones
- Portable Navigation Displays
- Multi-display Handheld Devices

Description

The TPS60255 is a high-efficiency, constant frequency charge pump DC/DC converter that uses 1× and 1.5× conversion to maximize efficiency for the input voltage range. By using adaptive 1×/1.5× charge-pump modes and very low dropout current regulators, the TPS60255 achieves high efficiency for the entire one-cell lithium battery range. The protection features include soft start, over-current limit, thermal shut down, and over-voltage detection. The device automatically detects and removes unused current sinks from the control loop.

This device drives six 25 mA current sinks and one 80 mA current sink. These current regulators are programmed by three independent brightness registers and five ON/OFF bits using a single-wire interface (EasyScale™). This offers flexible applications for a variety of lighting control in portable devices.

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