Industrial

The MC74HC4066A is a quad analog switch/multiplexer/demultiplexer that utilizes silicon-gate CMOS technology to achieve fast propagation delays, low ON resistances, and low OFF-channel leakage current. It can control analog and digital voltages that may vary across the full power-supply range (from VCC to GND). The device is identical in pinout to the metal-gate CMOS MC14016 and MC14066 and has four independent switches. The ON resistances (RON) of the device are more linear over input voltage than RON of metal-gate CMOS analog switches. The ON/OFF control inputs are compatible with standard CMOS outputs and, with pullup resistors, they are compatible with LSTTL outputs. For analog switches with voltage-level translators, see the HC4316A.

TCSS1100/ TCSS2100 is an optical sensor produced by Vishay Semiconductors. It has a compact structure with the light source and detector facing each other on the same optical axis. The operating wavelength is 950nm and the detector consists of a photologic IC with Schmitt trigger and open collector output.

This document describes the features and characteristics of the 18-bit, 1.25 MSPS PulSAR® ADC AD7643, including input range, resolution, dynamic range, signal-to-noise ratio, total harmonic distortion, etc.

The Microchip Technology Inc. 25AA256/25LC256 (25XX256*) are 256k-bit Serial Electrically Erasable PROMs.

The document introduces the Analog Devices Mixed-Signal Front-End (MxFE™) Baseband Transceiver for Broadband Applications AD9861 Rev. 0. The product includes dual 10-bit analog-to-digital converters and dual 10-bit digital-to-analog converters with internal or external reference, with versions available at 50 MSPS and 80 MSPS. The product also features programmable gain control and a configurable internal clock distribution block. Various data transfer modes can be achieved through register programmability or limited programmability through mode pins. Independent power-down control pins are provided for Rx and Tx.

Designed for pulse-width modulated (PWM) current control of bipolar microstepping stepper motors, the A3972 is capable of continuous output currents to ±1.5 A and operating voltages to 50 V. Internal fixed off-time PWM current-control timing circuitry can be programmed via a serial interface to operate in slow, fast, and mixed current-decay modes.

The LTC1483 is an ultra-low power differential line transceiver designed for data transmission standard RS485 applications with extended common-mode range (–7V to 12V). It will also meet the requirements of RS422. The LTC1483 features output drivers with controlled slew rate, decreasing the EMI radiated from the RS485 lines, and improving signal fidelity with misterminated lines. The CMOS design offers significant power savings over its bipolar counterparts without sacrificing ruggedness against overload or ESD damage. Typical quiescent current is only 80µA while operating and less than 1µA in shutdown. The driver and receiver feature three-state outputs, with the driver outputs maintaining high impedance over the entire common-mode range. Excessive power dissipation caused by bus contention or faults is prevented by a thermal shutdown circuit which forces the driver outputs into a high impedance state. The receiver has a fail-safe feature which guarantees a high output state when the inputs are left open. I/O pins are protected against multiple ESD strikes of over ±10kV. The LTC1483 is fully specified over the commercial and extended industrial temperature range and is available in 8-pin DIP and SO packages.

For applications requiring improved electrical and thermal performance at reduced cost, consider DATEL’s new UCQ series “quarter brick” DC/DC power converters. These compact units measure just 1.45" x 2.3" x 0.4" (36.8 x 60.9 x 10.2 mm) and fit the industry-standard footprint. Available outputs range between 1.2V @ 30 Amps to 12V @ 8.3 Amps and accept a wide input range. The UCQ’s interleaved, synchronous-rectifier topology offers high efficiency (up to 93%), tight line and load regulation, low noise and fast step response. A single-board optimized open-frame design contributes to impressive thermal opera- tion. UCQ’s will operate up to +70°C and 100 LFM airflow with no derating. The UCQ’s feature full isolation to 2250Vdc meeting BASIC insulation requirements of UL/EN/IEC 60950-1. Input filters reduce propa- gated switching noise back to input sources. Also included is a remote On/Off switch control (with positive or negative polarity), output trim adjustable over nominal and output sense functions to reduce power lead losses. Extensive protection items avoid damage from out of limit voltages, currents and temperatures. Protection faults automatically recover using the hiccup technique. Besides safety testing to 60950-1, certifications for the UCQ include application for EMC compliance (to FCC class B), qualification testing (including HALT) and CE marking.

This document describes the features and characteristics of the STC15W408AS series microcontrollers.

LMV1032 is an audio amplifier series designed for small form factor electret microphones. It is intended to replace the JFET preamp currently used. The LMV1032 series is ideal for applications requiring extended battery life, such as a Bluetooth communication link. The addition of a third pin in electret microphones incorporating the LMV1032 allows for a significant reduction in supply current compared to JFET-equipped electret microphones, reducing microphone supply current to 60µA, ensuring longer battery life. The LMV1032 series is guaranteed for supply voltages from 1.7V to 5V and has fixed voltage gains of 6dB, 15dB, and 25dB. The LMV1032 series offers low output impedance over the voice bandwidth, excellent power supply rejection (PSRR), and temperature stability. The devices are offered in a space-saving 4-bump ultra-thin micro SMD lead-free package, making them ideally suited for the form factor of miniature electret microphone packages.

LTC4006 is a 4A high efficiency Li-ion battery charger

The LTC ®1759 Smart Battery Charger is a single chip charging solution that dramatically simplifies construc- tion of an SBS compliant system. The LTC1759 imple- ments a Level 2 charger function whereby the charger can be programmed by the battery or by the host. A thermistor on the battery being charged is monitored for tempera- ture, connectivity and battery type information. The SMBus interface remains alive when the AC power adapter is removed and responds to all SMBus activity directed to it, including thermistor status (via the ChargerStatus com- mand). The charger also provides an interrupt to the host whenever a status change is detected (e.g., battery removal, AC adapter connection). Charging current and voltage are restricted to chemistry specific limits for improved system safety and reliability. Limits are programmable by two external resistors. Addi- tionally, the maximum average current from the AC adapter is programmable to avoid overloading the adapter when simultaneously supplying load current and charging cur- rent. When supplying system load current, charging cur- rent is automatically reduced to prevent adapter overload.

The UCC3807 family is a programmable maximum duty cycle PWM controller designed for off-line and dc-to-dc fixed frequency current mode switching power supplies. It features high speed, low power consumption, internal full cycle soft start, and internal leading edge blanking of the current sense input.

The LTC3720 is a synchronous step-down switching regulator controller for CPU power. It supports programmable output voltage between 1.05V and 1.825V, does not require a sense resistor, and has features such as wide input voltage range, adjustable current limit, and switching frequency.

The UCC2891/2/3/4 family of PWM controllers is designed to simplify implementation of the various active clamp/reset switching power topologies. The UCC289x is a peak current-mode, fixed-frequency, high-performance pulse width modulator. It includes the logic and the drive capability for the auxiliary switch with a simple method of programming the critical delays for proper active clamp operation. The UCC2891/3 includes a 110-V start-up regulator for initial start-up and to provide keep-alive power during stand-by. Additional features include an internal programmable slope compensation circuit, precise DMAX limit, and a single resistor programmable synchronizable oscillator.