Industrial

The PS2562-1 is optically coupled isolators containing a GaAs light emitting diode and an NPN silicon darlington connected phototransistor.

This data sheet introduces the features and characteristics of NEC Electronics's PS8501, PS8501L1, PS8501L2, and PS8501L3 products.

The LTC1257 is a complete single supply, 12-bit voltage output digital-to-analog converter (DAC) in an SO-8 package. It includes an output buffer amplifier, 2.048V voltage reference, and an easy to use three-wire cascadable serial interface. It is suitable for industrial process control and automatic test equipment. The LTC1257 features small size, low power consumption, and other characteristics.

VISHAY SFH6315T/ SFH6316T/ SFH6343T is a high-speed optocoupler with features such as surface mountability, high-speed transmission, compatibility with infrared vapor phase reflow and wave soldering processes.

LP3905 is a multi-functional Power Management Unit, optimized for low power handheld applications. This device integrates two 600mA DC/DC buck regulators and two 150mA linear regulators. Fixed and adjustable buck output versions are available. The LP3905 additionally features two enable pins for the device output control and is offered in an LLP package.

The Micrel MIC4721 is a high efficiency PWM buck (step-down) regulator that provides up to 1.5A of output current. The MIC4721 operates at 2MHz and has proprietary internal compensation that allows a closed loop bandwidth of over 200KHz. The low on-resistance internal p-channel MOSFET of the MIC4721 allows efficiencies up to 94%, reduces external components count and eliminates the need for an expensive current sense resistor. The MIC4721 operates from 2.7V to 5.5V input and the output can be adjusted down to 1V. The devices can operate with a maximum duty cycle of 100% for use in low-dropout conditions. The MIC4721 is available in the 10-pin MSOP package with a junction operating range from –40°C to +125°C. Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com.

The MAX1240/MAX1241 are low-power, 12-bit analog-to-digital converters (ADCs) available in 8-pin packages. The MAX1240 operates with a single +2.7V to +3.6V supply, and the MAX1241 operates with a single +2.7V to +5.25V supply. Both devices feature a 7.5µs successive-approximation ADC, a fast track/hold (1.5µs), an on-chip clock, and a high-speed, 3-wire serial interface. Power consumption is only 37mW (VDD = 3V) at the 73ksps maximum sampling speed. A 2µA shutdown mode reduces power at slower throughput rates. The MAX1240 has an internal 2.5V reference, while the MAX1241 requires an external reference. The MAX1241 accepts signals from 0V to VREF, and the reference input range includes the positive supply rail. An external clock accesses data from the 3-wire interface, which connects directly to standard microcontroller I/O ports. The interface is compatible with SPI™, QSPI™, and MICROWIRE™. Excellent AC characteristics and very low power combined with ease of use and small package size make these converters ideal for remote-sensor and data-acquisition applications, or for other circuits with demanding power consumption and space requirements. The MAX1240/MAX1241 are available in 8-pin DIP and SO packages. Applications include battery-powered systems, portable data logging, isolated data acquisition, and process control instrumentation.

The MAX5946 is a dual hot-plug controller designed for PCI Express™ applications. The device provides hot-plug control for 12V, 3.3V and 3.3V auxiliary supplies of two PCI Express slots. The MAX5946’s logic inputs/outputs allow interfacing directly with the system hot-plug management controller or through an SMBus™ with an external I/O expander. An integrated debounced attention switch and present-detect signals are included to simplify system design. The MAX5946 drives four external n-channel MOSFETs to control the 12V and 3.3V main outputs. The 3.3V auxiliary outputs are controlled through internal 0.3Ω n-channel MOSFETs. Internal charge pumps provide gate drive for the 12V outputs while the gate drive of the 3.3V output is driven by the 12V input supply. The 3.3V auxiliary outputs are completely independent from the main outputs with their own charge pumps. At power-up, the MAX5946 keeps all of the external MOSFETs off until the supplies rise above their respective undervoltage lockout (UVLO) thresholds. The device keeps the internal MOSFETs off only until the auxiliary input supply rises above its UVLO threshold. Upon a turn-on command, the MAX5946 enhances the external and internal MOSFETs slowly with a constant gate current to limit the power-supply inrush current. The MAX5946 actively limits the current of all outputs at all times and shuts down if an overcurrent condition persists for longer than a programmable overcurrent timeout. Thermal-

tps64200 is a member of the tps6420x family of nonsynchronous step-down controllers that are ideally suited for systems powered from a 5-v or 3.3-v bus or for applications powered from a 1-cell li-ion battery or from a 2- to 4-cell nicd, nimh, or alkaline battery.

This document is the datasheet of VISHAY VESD05A8A-HNH, which is a 8-Line ESD-Protection Diode Array with ultra compact LLP1713-9L package, low leakage current, low load capacitance and ESD-immunity acc. IEC 61000-4-2 ± 25 kV contact discharge ± 30 kV air discharge

The document mainly introduces the LTC3832/LTC3832-1 series products. The series products are high power and high efficiency switching regulator controllers, which can be used for 3.3V-5V to 0.6V-3.xV step-down applications. The series products have ±1% output voltage regulation accuracy and can maintain stability under temperature, load current and input voltage changes. The efficiency is up to 95%. It can provide adjustable or fixed 2.5V output.

The AD7893 is a fast 12-bit, 6 µs ADC from Analog Devices that operates from a single +5 V supply and is housed in a small 8-pin mini-DIP and 8-pin SOIC. The part contains a 6 µs successive approximation A/D converter, an on-chip track/hold amplifier, an on-chip clock and a high speed serial interface. Output data from the AD7893 is provided via a high speed, serial interface port. This two-wire serial interface has a serial clock input and a serial data output with the external serial clock accessing the serial data from the part. In addition to traditional dc accuracy specifications such as lin- earity, full scale accuracy, and offset, the AD7893 also offers improved performance in terms of noise and distortion.