datasheetbank_Logo
전자부품 반도체 검색엔진( 무료 PDF 다운로드 ) - 데이터시트뱅크
HOME  >>>  Micrel  >>> MIC38HC42-1YM PDF

MIC38HC42-1YM 데이터시트 - Micrel

MIC38HC42 image

부품명
MIC38HC42-1YM

Other PDF
  no available.

PDF
DOWNLOAD     

page
8 Pages

File Size
64.8 kB

제조사
Micrel
Micrel 

General Description
The MIC38HC4x family are fixed frequency current-mode PWM controllers with 1A drive current capability. Micrel’s BiCMOS devices are pin-compatible with 384x bipolar devices. Their high output drive, with fast rise and fall times, combined with low startup current make it an ideal PWM controller where high efficiency is required.
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 UC384x 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 MIC38HC4x also features a trimmed oscillator discharge current and bandgap reference.


FEATUREs
• Fast 20ns output rise and 15ns output fall times
• –40°C to +85°C temperature range exceeds UC284x specifications
• High-performance, low-power BiCMOS Process
• Ultralow start-up current (50µA typical)
• Low operating current (4mA typical)
• High output drive (1A peak current, HC version)
• CMOS outputs with rail-to-rail swing
• Current-mode operation up to 500kHz
• 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


APPLICATIONs
• Current-mode, off-line, switched-mode power supplies
• Current-mode, dc-to-dc converters.
• Step-down “buck” regulators
• Step-up “boost” regulators
• Flyback, isolated regulators
• Forward converters
• Synchronous FET converters

 

Page Link's: 1  2  3  4  5  6  7  8 

부품명
상세내역
보기
제조사
BiCMOS Current-Mode PWM Controllers
PDF
A1 PROs co., Ltd.
BiCMOS CURRENT MODE PWM CONTROLLERS
PDF
TelCom Semiconductor, Inc
BiCMOS Current-Mode PWM Controllers
PDF
Micrel
BiCMOS Current-Mode PWM Controllers
PDF
IMP, Inc
BiCMOS CURRENT MODE PWM CONTROLLERS
PDF
TelCom Semiconductor Inc => Microchip
BiCMOS Current-Mode PWM Controllers
PDF
Micrel
BICMOS PWM CONTROLLERS
PDF
TelCom Semiconductor Inc => Microchip
BiCMOS Green-Mode PWM Controllers
PDF
Unspecified
HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
PDF
Unisonic Technologies
HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
PDF
Unisonic Technologies

Share Link: GO URL

All Rights Reserved© datasheetbank.com  [ Privacy Policy ] [ Request Datasheet ] [ Contact Us ]