Datasheet.kr   

ME8105 데이터시트 PDF




Microne에서 제조한 전자 부품 ME8105은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 ME8105 자료 제공

부품번호 ME8105 기능
기능 PWM Controller of High-performance Current Mode
제조업체 Microne
로고 Microne 로고


ME8105 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.



전체 17 페이지수

미리보기를 사용할 수 없습니다

ME8105 데이터시트, 핀배열, 회로
ME8105
PWM Controller of High-performance Current Mode ME8105
General Description
PWM controller of high-performance current mode is
specially designed for AC/DC transformer with high
performance and price ratio, which supplies continuous output
power of 12W within the range of wide-voltage between 85V
and 265V, the output power of peak value can be up to 18W.
The combination of optimized reasonable circuit design and
bipolar facture technology with high performance and price
ratio economizes the whole cost ultimately. The power
controller can be applied to the typical flyback circuit topology
so as to form a simple AC/DC transformer. The startup circuit
inside IC is designed as a particular current inhalation way, so
it can start up with the magnification function of the power
switch tube itself, which lessens the power consumption for
starting the resistance remarkably; when the output power is
lower, IC will reduce the working frequency automatically,
therefore, the standby power consumption becomes extremely
low. When the power tube is closed, the interior circuit will bias
it reversely, utilize the characteristic of high pressure
resistance CB of bipolar transistor directly, and improve its
pressure resistance capacity to the high voltage of 700V, which
ensures the security of the power tube.
Meanwhile, the perfect function of overload and saturation
prevention is provided inside of IC, which can keep away some
abnormal status, such as overload, saturation of transformer,
and output short circuit, so as to improve the reliability of the
power supply. The current limit and clock frequency can be set
up by exterior components.
Now the standard encapsulation and the environmental
protection leadless encapsulation that meets European
standard of DIP8 are supplied.
Features
●Set-in high-voltage power switch tube of 700V
and few peripheral components.
●With the modulation of lock pulse width, the
testing is according to the pulse limit current.
●With the function of output frequency
reduction, the non-output power
consumption can be less than 0.1W
Inner-built ramp and anti-feedback
compensation function
●The independent upper-limit current testing
controller deals with over-current and
over-load of the controller real-timely.
●The period emission pole is turned off and it
outputs by deflected voltage, and the
pressure resistance of the power tube is
improved.
●Set-in current limit resistance with
temperature compensation, which makes
the current limit precise
●Set-in heat protection circuit
●Startup is accomplished with the
magnification function of the switch power
tube, and the power consumption of startup
resistance is reduced more than10 times.
●Low startup and operating current
●VCC over-voltage automatic limit
●Continuous wide-voltage output power
reaches 12W, and the output power of peak
value arrives at 18W.
Typical Application
Adaptor (for example, travel charger, out
power station)
Open Frame (for example, DVD, DVB)
V01
www.microne.com.cn
Page 1 of 17




ME8105 pdf, 반도체, 판매, 대치품
Block Diagram
ME8105
V01
www.microne.com.cn
Page 4 of 17

4페이지










ME8105 전자부품, 판매, 대치품
ME8105
cycle of the oscillator is, until the oscillation stops (This characteristic reduces the standby power consumption of the
switching power.) ; if the peripheral feedback tries to make VCC more than 9.7V, the in-circuit is fed back to FB and
makes VCC stabilize the voltage at 9.7V (According to this characteristic, we can may not adopt peripheral feedback
circuit, and stabilize the output voltage by in-circuit, but the precision of stabilizing voltage is low); During the open
cycle, OB supplies base current for the power tube, OE pulls down the emitter of the power tube to IS, and OB
adopts the driving parameter of ramp current ( it refers to that OB on-current is the parameter of IS, when IS is 0V, OB
on-current is about 40mA, then OB on-current increases linearly with IS, when IS increases to 0.6V, OB on-current is
about 120mA, this characteristic makes effective use of the output current of OB, decreases the power consumption
of ME8105), if IS detects that the specified current FB, it will come into the close cycle; during the close cycle, OB
pulls down, the power tube will not shut off immediately, but OE clamps 1.5V (after the power tube is shut off, the
base will be biased reversely, which improves the voltage endurance); during open or close cycle, if the power tube
is detected beyond the upper limit current, the trigger of the upper limit current will be placed preferentially and forces
FB to drop, the duty cycle will become less so as to protect the power tube and transformer; at the beginning of next
close cycle or when FB is less than 1.8V, the trigger of the upper limit current will reset. In addition, ME8105 is
installed over heat protection internally, when the internal temperature is higher than 140, it will broaden the cycle
of the oscillator and makes the temperature of ME8105 less than 150; The ramp compensation is also placed
internally, when ME8105 is in a big duty cycle or in the mode of constant current, it can stabilize the open/close cycle.
If VCC declines to 3.7V or so, ME8105 will come into the start-up phase once again.
Waveform graph of open and close cycle at normal phase
V01
www.microne.com.cn
Page 7 of 17

7페이지


구       성 총 17 페이지수
다운로드[ ME8105.PDF 데이터시트 ]

당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는

포괄적인 데이터시트를 제공합니다.


구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한
광범위한 전력 반도체를 판매합니다.

전력 반도체 전문업체

상호 : 아이지 인터내셔날

사이트 방문 :     [ 홈페이지 ]     [ 블로그 1 ]     [ 블로그 2 ]



관련 데이터시트

부품번호상세설명 및 기능제조사
ME8101

High Performance Current Mode PWM switching power supply controller

Microne
Microne
ME8105

PWM Controller of High-performance Current Mode

Microne
Microne

DataSheet.kr       |      2020   |     연락처      |     링크모음      |      검색     |      사이트맵