Industrial

Introduce a method of measuring current using a 16-bit ADC. This ADC has an input noise floor of 1.45µVRMS and an input range from 100mV to VCC, which makes it suitable for a wide range of applications.

This design note describes a dual smart battery charger for use in server battery backup. The circuit can charge batteries at up to 4A and switch continuously down to zero load currents. The circuit takes advantage of ceramic capacitors’ space saving features without sacrificing circuit performance.

The LTC3455 is a high efficiency single-chip USB power management IC that supports three power sources: AC adapter, USB cable and Li-ion battery. It also integrates two high efficiency synchronous buck converters that can provide low voltage power for most USB-powered peripherals.

The LT6552 is a specialized differential amplifier designed for low voltage applications, ideal for rejecting common mode noise as a video line receiver. It provides exceptional high frequency common mode rejection and is optimized for low supply voltages, making it a versatile gain block structure.

This document introduces the LTC 3806, a new flyback controller that improves load and cross regulation for multi-output flyback converters. Multi-output systems that previously used post regulators, multiple switching supplies or other methods to provide tight output voltage tolerances can now use lower cost flyback converters. The LTC3806 uses forced continuous conduction operation to improve cross regulation by keeping the rectifiers on and connecting the outputs to the transformer primary side, which reduces load response time and improves load regulation.

This design note presents a simple, compact, and high efficiency LED flashlamp circuit suitable for use in cellular telephones and cameras. The circuit uses the LT ®3468-1 as the main controller.

This document discusses the power and Mini Card solutions for PCI Express (PCIe) and PCI Express Mini Card. PCIe is the third generation of PCI technology used to connect I/O peripheral devices in computer systems. It is suitable for various computing platforms such as desktop, mobile, server, and communications. The document also specifies the power requirements for PCIe and PCIe Mini Card.

This document introduces a simple design of a synchronous single-switch forward converter that does not require complex PWM control circuitry and is less expensive than power modules.

The LT1991 is a flexible part that can be configured into inverting, noninverting, difference amplifiers, and even buffered attenuators, just by strapping its pins. It provides you with internal precisely matched resistors and feedback capacitors, so you can easily configure it into hundreds of different gain circuits without external components.

This document introduces a high power LED camera flash solution for cell phone applications. The solution uses LED flash lights, which are small and efficient, and can meet the various needs of cell phones for flash lights.

The LT ®1943 is a highly integrated, 4-output regulator designed to power large TFT LCD panels. It employs switching regulators—instead of linear regulators—to minimize power dissipation and accommodate a wide input voltage range. The wide input range, 4.5V to 22V, allows it to accept a variety of power sources, including the commonly used 5V, 12V and 19V AC adapters. The first buck regulator provides a logic voltage with up to 2A of current. The other three switching regulators provide the three bias voltages, AVDD, VON and VOFF, required by LCDs. All four regulators are synchronized to a 1.2MHz internal clock, allowing the use of small, low cost inductors and ceramic capacitors. Since different types of panels may require different bias voltages, all output voltages are adjustable for maximum flexibility. Programmable soft-start capability is included in all outputs to limit inrush current. The LT1943 has a built-in start-up sequence and panel protection feature. The LT1943 is available in a low-profile 28-pin TSSOP package.

The LT6650 is a low power voltage reference with an output voltage range of 0.4V to 18V. It can be used in single supply and low dropout mode, and has a two-resistor programmable output.

This document introduces the LT ®3434, 3A monolithic buck switching regulator, which is designed to optimize efficiency over all current and voltage levels, both high and low, while having low quiescent current and low dropout. Micropower bias current and Burst Mode ® operation enable it to consume merely 100µA at zero load and 12V input. The high efficiency bipolar NPN power switch (0.1Ω) provides up to 85% efficiency at a 2A load current. Combined with high duty cycle, the low dropout of the switch maintains a regulated 3.3V output down to 4V input at all load currents.

This document introduces the AdvancedTCA Hot Swap Controller, which can ease power distribution design. The controller is suitable for 200W applications and features current limiting, current and voltage monitoring, etc.

This document introduces the features of the LT3428, a dual phase boost converter that can start up at 1.5V and output 2A at 5V. The converter operates at 2MHz and has very low output ripple and few components.