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STC3115 datasheet - STMicroelectronics
STC3115 datasheet - STMicroelectronics

... Mixed mode gas gauge system The STC3115 provides a mixed mode gas gauge using both a Coulomb counter (CC) and a voltage-mode (VM) algorithm to track the SOC of the battery in all conditions with optimum accuracy. The STC3115 directly provides the SOC information. The Coulomb counter is mainly used w ...
5V Zero Power, TotalCMOS, Universal PLD Device
5V Zero Power, TotalCMOS, Universal PLD Device

... The XCR22V10 uses the familiar AND/OR logic array structure, which allows direct implementation of sum-of-products equations. This device has a programmable AND array which drives a fixed OR array. The OR sum of products feeds an "Output Macro Cell" (OMC), which can be individually configured as a d ...
UM10540 NVT2001GM and NVT2002DP demo boards Rev. 1 — 7 March 2012
UM10540 NVT2001GM and NVT2002DP demo boards Rev. 1 — 7 March 2012

... Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customer(s). NXP does not accept any liability in this respect. Export control — This document as well as the item(s) described herein may be subject to exp ...
Evaluates:  MAX1566/MAX1567 MAX1567 Step-Up Main Evaluation Kit General Description Features
Evaluates: MAX1566/MAX1567 MAX1567 Step-Up Main Evaluation Kit General Description Features

... of white LEDs for display backlighting. The EV kit comes with four surface-mount white LEDs installed and is configured to drive the LEDs at a regulated 20mA. To protect against an open LED string, the overvoltage protection limits the maximum output voltage to 15V. To evaluate with fewer than four ...
MAX6576/MAX6577 SOT Temperature Sensors with Period/Frequency Output General Description
MAX6576/MAX6577 SOT Temperature Sensors with Period/Frequency Output General Description

... The MAX6576/MAX6577 are low-cost, low-current temperature sensors with a single-wire output. The MAX6576 converts the ambient temperature into a square wave with a period proportional to absolute temperature (°K). The MAX6577 converts the ambient temperature into a square wave with a frequency propo ...
Dc Microgrids Stability
Dc Microgrids Stability

... • Main goal: be able to maintain frequency and voltage levels within a relatively tight ranges. •Stability issues can be considered at various time scales: • seconds to minutes (or more): • Need to continuously balance load + losses and generation with load and losses being unknown. • Generation ram ...
Varactor Diodes
Varactor Diodes

... A common package configuration is to assemble two junctions in one package in a common cathode or common anode configuration. An empirical model for this dual configuration assumes the same value of parasitic capacitance in parallel with each junction die as for a single junction assembly. On the ot ...
MB39C811 Ultra Low Power Buck PMIC Solar/Vibrations Energy
MB39C811 Ultra Low Power Buck PMIC Solar/Vibrations Energy

... When the VIN pin input voltage is equal to the release voltage VUVLOH for UVLO or more, the output for the IPGOOD pin is set to the “H” level as the input power-good. When the VIN pin input voltage is equal to the detection voltage VUVLOL for UVLO or less, the output for the IPGOOD pin is reset to t ...
LTM4628 - Dual 8A or Single 16A DC/DC uModule Regulator
LTM4628 - Dual 8A or Single 16A DC/DC uModule Regulator

... 15mm × 15mm × 4.92mm BGA Packages ...
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LF198JAN Monolithic Sample-and-Hold Circuits Monolithic General Description

MAX5915/MAX5915A/MAX5916/MAX5916A Dual PCI 2.2 Hot-Swap Controllers General Description Features
MAX5915/MAX5915A/MAX5916/MAX5916A Dual PCI 2.2 Hot-Swap Controllers General Description Features

... PCI 2.2 hot-swap controllers allow for safe insertion and removal of two PCI cards into live PCI slots or backplanes by limiting the inrush current at startup. After startup, these devices provide protection against shortcircuit, overcurrent, and undervoltage conditions. The MAX5915/MAX5915A/MAX5916 ...
ZXLD1356 - Diodes Incorporated
ZXLD1356 - Diodes Incorporated

OPA2604AUG4中文资料
OPA2604AUG4中文资料

here - Transaction on electrical engineering
here - Transaction on electrical engineering

... Heating in large properties can be ensured by means of heat pumps. Heat pumps supply up to three times the volume of heat compared to the amount of power they consume from the mains. Heating with heat pumps system is set for fully automatic operation with control options depending on utilisation of ...
the overview brochure - Kniel System
the overview brochure - Kniel System

TPS43330-Q1,332-Q1 - Texas Instruments
TPS43330-Q1,332-Q1 - Texas Instruments

AS3685C
AS3685C

LM76 ±0.5˚C, ±1˚C, 12-Bit + Sign Digital Temperature Sensor and
LM76 ±0.5˚C, ±1˚C, 12-Bit + Sign Digital Temperature Sensor and

DMN65D8L Product Summary Features
DMN65D8L Product Summary Features

A8285 and A8287 - Allegro Microsystems
A8285 and A8287 - Allegro Microsystems

MAX3863 2.7Gbps Laser Driver with Modulation Compensation General Description
MAX3863 2.7Gbps Laser Driver with Modulation Compensation General Description

... to the laser diode. When EN is low, the modulation and bias outputs at the MOD pin are enabled. When EN is high or floating, the output is disabled. In the disabled condition, bias and modulation currents are off. ...
Using Power Lock and external modulation with the SuperK
Using Power Lock and external modulation with the SuperK

... rapidly and/or with high amplitude resolution. It may also be used in connection with lock-in detection needing a modulated source signal. The Power Lock external feedback control is primarily used for stabilization of the output power using an externally signal from e.g. a photo detector or power m ...
LM76 ±0.5˚C, ±1˚C, 12-Bit + Sign Digital Temperature Sensor and
LM76 ±0.5˚C, ±1˚C, 12-Bit + Sign Digital Temperature Sensor and

... Note 9: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level). Note 10: 12 bits + sign, two’s complement Note 11: This specification is provided only to indicate how often temperature data is updated. The LM76 can be read at any time without regard to conversion state (and will y ...
General technical information
General technical information

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Resistive opto-isolator



Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.
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