最新无码a∨在线观看,一本av高清一区二区三区,亚洲熟妇色l20p,宅男噜噜69av,中出あ人妻熟女中文字幕

UCC28C44

工作溫度范圍為 -40°C 至 105°C、具有 14.5V/9V UVLO 50% 占空比的 20V、1A、低功耗 1MHz 電流模式 PWM 控制器; ? Enhanced Replacement for UCx84x and UCx84xA Family With Pin-to-Pin Compatibility\n? 1-MHz Operation\n? 50-μA Standby Current, 100-μA Maximum\n? Low Operating Current of 2.3 mA at 52 kHz\n? Fast 35-ns Cycle-by-Cycle Over-Current Limiting\n? ±1-A Peak Output Current\n? Rail-to-Rail Output Swings with 25-ns Rise and 20-ns Fall Times\n? ±1% Initial Trimmed 2.5-V Error Amplifier Reference\n? Trimmed Oscillator Discharge Current\n? New Undervoltage Lockout Versions\n? VSSOP-8 Package Minimizes Board Space;

UCCx8C4x family are high-performance, current-mode PWM controllers. The UCCx8C4x is an enhanced BiCMOS version with pin-for-pin compatibility to the industry standard UCx84xA family and UCx84x family of PWM controllers. The BiCMOS technology offers lower power consumption to improve efficiency as well as faster current sense and oscillator frequency. In addition, lower startup voltage versions of 7 V are offered as UCCx8C40 and UCCx8C41 for use in battery systems. The UCC28C4x series is specified for operation from –40°C to 105°C, and the UCC38C4x series is specified for operation from 0°C to 70°C. Providing necessary features to control fixed frequency, peak current-mode power supplies, this family offers the following performance advantages. The device offers high-frequency operation up to 1 MHz, suitable for high speed applications. The trimmed discharge current enables more precise programming of the maximum duty cycle and dead-time limit when compared to the UCx84x family. Reduced start-up and operating currents minimizes start-up loss and low operating power consumption for improved efficiency. The device also features a fast current-sense-to-output delay time of 35 ns for superior overload protection at the power switch, and a ±1-A peak output current capability with improved rise and fall times for driving large external MOSFETs directly. The UCC38C4x family is offered in 8-pin VSSOP (DGK), 8-pin SOIC (D), and 8-pin PDIP (P) packages.

UCC28C44

BICMOS LOW POWER CURRENT MODE PWM CONTROLLER

UCC28C44

BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLER

UCC28C44

BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLER

UCC28C44

BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLER

UCC28C44

Automotive BiCMOS Low-Power Current-Mode PWM Controllers

UCC28C44-Q1

汽車(chē)類 BiCMOS 低功耗電流模式 PWM 控制器; ? 具有符合 AEC-Q100 標(biāo)準(zhǔn)的下列特性： \n? 器件溫度等級(jí) 1：-40?C 至 125?C\n? 器件 HBM 分類等級(jí) 2：±2kV\n? 器件 CDM 分類等級(jí) C4B：750V \n \n? 1MHz 運(yùn)行\(zhòng)n? 50μA 待機(jī)電流，最大值 100μA \n? 在 52kHz 下工作電流低至 2.3mA\n? 35ns 快速逐周期過(guò)流限制\n? ±1A 峰值輸出電流\n? 軌至軌輸出擺幅，上升和下降時(shí)間分別為 25ns 和 20ns\n? 初始修整的 2.5V 誤差放大器基準(zhǔn)為 ±1%\n? 修整的振蕩器放電電流\n? 欠壓鎖定新版本\n? 使用 UCC28C4x-Q1 并借助 WEBENCH? 電源設(shè)計(jì)器創(chuàng)建定制設(shè)計(jì)方案;

UCC28C4x-Q1 系列器件是高性能電流模式 PWM 控制器。\n\nUCC28C4x-Q1 系列支持實(shí)現(xiàn)固定頻率、峰值電流模式反激功能，具有 UVLO 和最大占空比限制功能。在配置方面，它可以使用輔助繞組進(jìn)行初級(jí)側(cè)調(diào)整，也可以使用光耦合器進(jìn)行次級(jí)側(cè)調(diào)整。此系列器件 可實(shí)現(xiàn) 高達(dá) 1MHz 的高頻運(yùn)行，具有低啟動(dòng)和工作電流，因此可將啟動(dòng)損失和運(yùn)行功耗降到最低，從而提高效率。它們還具有快速電流感應(yīng)功能（輸出延遲時(shí)間可達(dá) 35ns）以及 ±1A 峰值輸出電流能力，可直接驅(qū)動(dòng)外部大型 MOSFET。\n\nUCC28C4x-Q1 系列器件采用 8 引腳 SOIC (D) 封裝。\n\n

UCC28C44D

BICMOS LOW POWER CURRENT MODE PWM CONTROLLER

UCC28C44D

BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLER

UCC28C44D

BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLER