LNBP21集成电路（IC）的特殊用途稳压器规格书PDF中文资料

LNBP21属于集成电路（IC）的特殊用途稳压器。由意法半导体集团制造生产的LNBP21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。

DESCRIPTION

Intended for analog and digital satellite STB receivers/SatTV, sets/PC cards, the LNBP21 is a

monolithic voltage regulator and interface IC, assembled in SO-20 and PowerSO-20,

specifically designed to provide the power and the 13/18V, 22KHz tone signalling to the LNB down

converter in the antenna or to the multiswitch box. In this application field, it offers a complete

solution with extremely low component count, low power dissipation together with simple design and I2CTM standard interfacing.

■ COMPLETE INTERFACE BETWEEN LNB AND I2CTM BUS

■ BUILT-IN DC/DC CONTROLLER FOR SINGLE 12V SUPPLY OPERATION

■ ACCURATE BUILT-IN 22KHz TONE OSCILLATOR

■ SUITS WIDELY ACCEPTED STANDARDS

■ FAST OSCILLATOR START-UP FACILITATES DiSEqCTM ENCODING

■ BUILT-IN 22KHz TONE DETECTOR SUPPORTS BI-DIRECTIONAL DiSEqCTM

■ LOOP-THROUGH FUNCTION FOR SLAVE OPERATION

■ LNB SHORT CIRCUIT PROTECTION AND DIAGNOSTIC

■ CABLE LENGTH DIGITAL COMPENSATION

■ INTERNAL OVER TEMPERATURE PROTECTION

■ ESD RATING 4KV ON POWER INPUT-OUTPUT PINS