L5962数据手册集成电路（IC）的特殊用途稳压器规格书PDF

描述 Description

L5962 is a very versatile device exploiting BCD technology characteristics to provide a complete set of regulated voltages covering all the needs of a car-radio set.

In standby condition the device guarantees extremely low quiescent current (90 μA max -40 ˚C < T < 85 ˚C) and minimum operating voltage (4.5 V using an external Schottky diode for the back-up function).

特性 Features

• Step-down synchronous switching voltage regulator
•Internal high-side/ Low-side NDMOS
•1.2 < Vout < 8 V selectable through external resistors
•1.2/2.5 A load current selected through dedicated pin
•185 kHz free-run frequency
•SYNC function (220 < fsw < 400 kHz)
• Linear regulators
•3.3/5 V @ 150 mA standby regulator selected through dedicated pin (VSTBYSEL)
•5/8.5 V @ 350 mA switched linear regulator enabled and selected through I2C bus (VLR1)
•3.3/10 V @ 1 A switched linear regulator enabled and selected through I2C bus (VLR2)
• 2 High side drivers (0.5 V max drop @ 0.5 A) enabled through I2C bus and equipped with protection circuit against:
•short to ground and battery
•loss of ground and battery
•unsupplied short to battery
• Reset function with configurable delay (RST, RSTDLY)
• I2C bus
• Enable pin to drive switching regulator and I2C bus logic
• Under/over voltage battery detector (VBATVW)
•Under voltage threshold adjustable through dedicated pin (LVWIN)
• Load dump protection
• Independent thermal protection on all regulators

简介

L5962属于集成电路（IC）的特殊用途稳压器。由制造生产的L5962特殊用途稳压器该系列产品用于电源控制、某种形式的转换，适用于特定的复杂应用。因此，各种产品特性集差异较大，包括空燃比传感器接口、汽车交流发电机电压调节、DDR 端接、液体透镜控制、摩托车转向信号控制、热电 (peltier) 冷却器控制、压电触觉控制、阀门控制、小型发动机管理等。