LTC1697 - LTC1697是High Efficiency Low Power 1W CCFL Switching Regulator

LTC1697是LINEAR凌力尔特公司的一款LCD / CCD / OLED 偏置产品，LTC1697是LTC1697是High Efficiency Low Power 1W CCFL Switching Regulator，本站介绍了LTC1697的封装应用图解、特点和优点、功能等，并给出了与LTC1697相关的LINEAR元器件型号供参考。

LTC1697 - LTC1697是High Efficiency Low Power 1W CCFL Switching Regulator - LCD / CCD / OLED 偏置 - 电源管理 - 凌力尔特

LTC1697 - High Efficiency Low Power 1W CCFL Switching Regulator

LTC1697 - High Efficiency Low Power 1W CCFL Switching Regulator - Linear Technology（凌力尔特）

功能描述

The LTC1697 is designed to control a single 1W cold cathode fluorescent lamp (CCFL). An internal PWM dimming system maximizes efficiency and dimming range. Accurate lamp currents can be set with a single external resistor.

The LTC1697 includes a synchronous current mode PWM controller with internal 1A MOSFET switches. It contains a 300kHz oscillator, 0.8V reference, and internal current sense. It operates from a 2.8V to 5.5V input voltage. The LTC1697 also has a thermal limit and a shutdown that reduces supply current to <2µA.

The LTC1697 is available in the MSOP-10 package.

特点

Operates from Single Li-Ion Battery

2.8V to 5.5V Input Voltage Range

Very Low Shutdown Current: <2µA

Synchronous Buck Architecture for High Efficiency

PWM Dimming Frequency Adjustable with a Single Capacitor

Accurate Lamp Current Maximizes Lamp Lifetime

Fixed Frequency Operation at 300kHz

Internal or External PWM Dimming

Small 10-Pin MSOP Package

应用