This document introduces an integrated current sensing technology that can be used to monitor and protect automotive systems. The technology uses the LT ®6100 and LTC6101 high side current-sense amplifiers to accurately measure the current draw of each subsystem. This technology can help automotive designers to perform real-time monitoring in harsh automotive battery-bus environments.
The LTC3456 is a multiple output DC/DC converter that runs off 2-cell AA batteries, USB, or an AC wall adapter. It is designed for mobile devices, including MP3 players, portable GPS units, digital cameras, and handheld computers.
This document introduces a monolithic converter that drives high power LEDs. The converter can be configured in various topologies to achieve high power constant current output. It is a 3A DC/DC step-up converter with dual rail-to-rail current sense amplifiers and an internal 3A, 42V switch. It combines a traditional voltage feedback loop and two unique current feedback loops to operate as a constant-current and/or constant-voltage source.
This document introduces a monolithic step-down regulator that can withstand the rigors of automotive environments and consumes only 100µA of quiescent current. The regulator is able to precisely regulate an output voltage in the face of wide temperature and input voltage ranges, including load dump transients in excess of 60V and cold crank voltage drops to 4V. The regulator is also able to minimize battery drain by maintaining high efficiency over a broad load current range. The LT3437 is a 200kHz fixed frequency, 500mA monolithic buck switching regulator with a 3.3V to 80V input voltage range, making it ideal for harsh automotive environments.
This document introduces the features of Easy Drive™ ADCs, which simplify the measurement of high impedance sensors. Delta-sigma ADCs are ideal for directly measuring many types of sensors, with high accuracy and high noise immunity. The LTC®2484 family of Delta-sigma converters solves the problem of input sampling currents overwhelming high source impedances or low-bandwidth, micropower signal conditioning circuits by balancing the input currents, thus simplifying or eliminating the need for signal conditioning circuits. The document provides an example of thermistor measurement.
This article introduces a high-efficiency nickel metal hydride / nickel cadmium battery charger design. The design uses a synchronous buck topology to fast charge up to 16 series-connected cells.
The LTC3808/9 family is a series of synchronous step-down controllers that feature a low-power, low-pin-count DFN package with an integrated start-up circuit, frequency-adjustable PLL, programmable output tracking, fast start-up mode, and power good detection.
This document describes the power supply sequencing control feature of the LTC2924 product, which prevents system damage. It can be used for sequencing multiple power supply channels and has high-precision output and input voltage monitoring.
This document introduces a 10A high performance point-of-load DC/DC µModule regulator with a 4.5V to 28V input, 0.6V to 5V output, and a 15mm × 15mm × 2.8mm package.
This document describes the features and characteristics of LTC4412, which is a near ideal diode controller used for automatically switching between power sources when prompted by the insertion or removal of any source. It has a low voltage drop and small reverse current leakage, which can reduce energy waste.
The LTC®3415 is a 7A point-of-load monolithic buck converter that provides a compact, simple and versatile solution for systems with widely distributed, high current, low voltage loads.
This document is a summary of《Wide Input Range 1A LED Driver Powers High Brightness LEDs with Automotive and 12VAC Supplies》. It introduces the LT3474 LED driver, which supports a variety of power sources, has a wide input voltage range, can adjust LED current, and has high efficiency and reliability.
