首页产品索引MIC38C45

    MIC38C45

    购买收藏
    Monolithic SMPS Controller

     

    产品信息

    The MIC38C4x are fixed frequency, high performance, current-mode PWM controllers. Micrel's BiCMOS devices are pin compatible with 384x bipolar devices but feature several improvements.Undervoltage lockout circuitry allows the '42 and '44 versions to start up at 14.5V and operate down to 9V, and the '43 and '45 versions start at 8.4V with operation down to 7.6V. All versions operate up to 20V.When compared to bipolar 384x devices operating from a 15V supply, start-up current has been reduced to 50µA typical and operating current has been reduced to 4.0 mA typical. Decreased output rise and fall times drive larger MOSFETs, and rail-to-rail output capability increases efficiency, especially at lower supply voltages. The MIC38C4x also features a trimmed oscillator discharge current and bandgap reference.MIC38C4x denotes 8-pin plastic DIP, SOIC, and MM8® packages. MIC38C4x-1 denotes 14-pin plastic DIP and SOIC packages. 8-pin devices feature small size, while 14-pin devices separate the analog and power connections for improved performance and power dissipation.For fast rise and fall times and higher output drive, refer to the MIC38HC4x.

      Fast 40ns output rise and 30ns output fall times

      -40°C to +85°C temperature range meets UC284x specifications

      High-performance, low-power BiCMOS Process

      Ultra-low start-up current (50µA typical)

      Low operating current (4mA typical)

      CMOS outputs with rail-to-rail swing

      ≥500kHz current-mode operation

      Trimmed 5V bandgap reference

      Pin-for-pin compatible with UC3842/3843/3844/3845(A)

      Trimmed oscillator discharge current

      UVLO with hysteresis

      Low cross-conduction currents

    电路图、引脚图和封装图

    在线购买

    型号制造商描述购买
    MIC38C45AYMM-TROtherKCB419/201S 立即购买
    MIC38C45YM-TRVishay Sprague 立即购买
    MIC38C45AYM-TRVishay Sprague 立即购买
    MIC38C45AYMM-- 立即购买
    MIC38C45-1YMEXARIC UART SINGLE 44PLCC 立即购买
    MIC38C45AYMNXPIC UART DUAL W/FIFO 44-PLCC 立即购买

    应用案例更多案例

    系列产品索引查看所有产品

    MC74HC374AMCP37D31-200MCP14A0601MCP7940N
    MC100LVEL01MC74LVX574MCP3301MCP4822
    MC100LVEP11MIC44F20MCP39F511MTCH102
    MC14099BMCP48FEB12MC100EP210SMCP1252
    MCP47FVB22MC74HC14AMMBTH11MJE15034
    Copyright ©2012-2024 hqchip.com.All Rights Reserved 粤ICP备14022951号工商网监认证 工商网监 营业执照