SI9112集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開(kāi)關(guān)式控制器規(guī)格書(shū)PDF中文資料

SI9112屬于集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開(kāi)關(guān)式控制器。由威世科技半導(dǎo)體制造生產(chǎn)的SI9112DC-DC 開(kāi)關(guān)控制器PMIC（電源管理集成電路）DC 到 DC 開(kāi)關(guān)式控制器是用于高效率電路的穩(wěn)壓 IC，其配置為生成高于（突升或步升）或低于（突降或步降）輸入電源的輸出電源電壓。其他拓?fù)浣Y(jié)構(gòu)可能包括：降壓-升壓、反激、正激、Cuk、SEPIC、全橋、半橋和推挽式。這些器件不同于需要最小電壓并“燒盡”多余電壓的線(xiàn)性穩(wěn)壓器。

FEATURES

9- to 80-V Input Range

Current-Mode Control

High-Speed, Source-Sink Output Drive

High Efficiency Operation (> 80)

Internal Start-Up Circuit

Internal Oscillator (1 MHz)

SHUTDOWN and RESET

DESCRIPTION

The Si9112 is a BiC/DMOS integrated circuit designed for use

in high-efficiency switchmode power converters. A

high-voltage DMOS input allows this controller to work over a

wide range of input voltages (9- to 80-VDC). Current-mode

PWM control circuitry is implemented in CMOS to reduce

internal power consumption to less than 10 mW.

A CMOS output driver provides high-speed switching of

MOSPOWER devices large enough to supply 50 W of output

power. When combined with an output MOSFET and

transformer, the Si9112 can be used to implement

single-ended power converter topologies (i.e., flyback,

forward, and cuk).

The Si9112 is available in both standard and lead (Pb)-free

14-pin plastic DIP and SOIC packages which are specified to

operate over the industrial temperature range of ?40 C to

85 C.