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Circuits

LIN IC suits automotive networking applications.

In one 5 x 7 mm QFN38 package, ATA6616 combines ATA6624 LIN System Basis Chip - including LIN transceiver, voltage regulator, watchdog - and ATtiny87 AVR-® MCU with 8 KB Flash memory. Integrated AVR MCU includes hardware LIN UART with automatic baud-rate synchronization in slave mode. Using integrated hardware routines, code size for LIN protocol is roughly 1 KB of Flash. Current saving modes...

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High-Power PoE Controller delivers over 90% efficiency.

Compliant to IEEE 802.3at draft 4.0 standard, TPS23754 is suited for 13 or 26 W powered device (PD) applications - IP phones, wireless access points, and security cameras. Single-chip solution leverages 100 V manufacturing process and supports isolated flyback and forward DC/DC converter topologies that can achieve higher than 90% power conversion efficiency. Along with power source selection...

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USB Battery Charger IC supports Green initiative.

Based on 3 MHz switch-mode architecture, SMB329 also features TurboCharge mode to accelerate charging times while reducing thermal dissipation and wasted power. Parameters are programmable in non-volatile memory for power-up configuration and in volatile memory for in-system adjustments via I-²C host interface. Supplied with instant-on power and real-time charge current monitoring features, IC...

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PoE Chip integrates 2 kV isolation.

PoE Power System-on-a-Chip, built on GreenEdge(TM) digital isolation technology, integrates functionality of IEEE 802.3af/at PD controller and quad-output digital power DC-DC converters and eliminates need for optocouplers. Cross-isolation DC-DC timing management and digital power control deliver optimized DC-DC efficiency across range of light- to full-load conditions. Unit also enables direct...

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Boost Converter has integrated dual half-bridge switches.

Boost Converter has integrated dual half-bridge switches.

With high value (12.4M/0.4M) output feedback divider resistors, LT8415 regulates 16 V of output with less than 70 -µA of total input current. Input voltage range 2.5-16 V enables it to operate from single-cell Li-Ion batteries up to fixed 12 V input rails, delivering outputs up to 40 V. LT8415 integrates main switch, half-bridge switches, Schottky diodes, and output disconnect on single die,...

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Stereo Audio IC suits portable multimedia applications.

Supplied in 5 x 5 mm, 32-pin QFN package, AT73C240 integrates 20-bit stereo DAC with 90 dB dynamic range and 1 W (max) audio power amp. Stereo DAC comprises multi-bit sigma-delta modulator with dither, continuous time analog filters, and analog output drive circuitry. Master clock is 256 or 384 times sampling frequency, allowing choice of input data rate up to 50 kHz. Also, stereo 32 ohm headset...

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Buck Converter requires only 12 µA of quiescent current.

Buck Converter requires only 12 µA of quiescent current.

Targeted for automotive and industrial 4-20 mA control loop applications, LTC3632 operates from input voltage range of 4.5-50 V with protection up to 60 V. It delivers up to 20 mA of continuous output current from 3 x 3 mm package. Unit utilizes internal high side and synchronous power switches, and is available with adjustable output voltage down to 0.8 V. Models LTC3632IDD and LTC3632IMS8E have...

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