전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

L6743BTR 데이터시트(PDF) 9 Page - STMicroelectronics

부품명 L6743BTR
상세설명  High current MOSFET driver
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6743BTR 데이터시트(HTML) 9 Page - STMicroelectronics

Back Button L6743BTR Datasheet HTML 5Page - STMicroelectronics L6743BTR Datasheet HTML 6Page - STMicroelectronics L6743BTR Datasheet HTML 7Page - STMicroelectronics L6743BTR Datasheet HTML 8Page - STMicroelectronics L6743BTR Datasheet HTML 9Page - STMicroelectronics L6743BTR Datasheet HTML 10Page - STMicroelectronics L6743BTR Datasheet HTML 11Page - STMicroelectronics L6743BTR Datasheet HTML 12Page - STMicroelectronics L6743BTR Datasheet HTML 13Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 16 page
background image
L6743B
Device description and operation
9/16
5.3
Internal BOOT diode
L6743B embeds a boot diode to supply the high-side driver saving the use of an external
component. Simply connecting an external capacitor between BOOT and PHASE complete
the high-side supply connections.
To prevent bootstrap capacitor to extra-charge as a consequence of large negative spikes,
an external series resistance RBOOT (in the range of few ohms) may be required in series to
BOOT pin.
Bootstrap capacitor needs to be designed in order to show a negligible discharge due to the
high-side MOSFET turn-on. In fact it must give a stable voltage supply to the high-side driver
during the MOSFET turn-on also minimizing the power dissipated by the embedded Boot
Diode. Figure 5 gives some guidelines on how to select the capacitance value for the
bootstrap according to the desired discharge and depending on the selected MOSFET.
Figure 5.
Bootstrap capacitance design
5.4
Power dissipation
L6743B embeds high current drivers for both high-side and low-side MOSFETs: it is then
important to consider the power that the device is going to dissipate in driving them in order
to avoid overcoming the maximum junction operative temperature.
Two main terms contribute in the device power dissipation: bias power and drivers' power.
Device power (PDC) depends on the static consumption of the device through the
supply pins and it is simply quantifiable as follow:
Drivers' power is the power needed by the driver to continuously switch ON and OFF
the external MOSFETs; it is a function of the switching frequency and total gate charge
of the selected MOSFETs. It can be quantified considering that the total power PSW
dissipated to switch the MOSFETs dissipated by three main factors: external gate
resistance (when present), intrinsic MOSFET resistance and intrinsic driver resistance.
This last term is the important one to be determined to calculate the device power
dissipation.
The total power dissipated to switch the MOSFETs results:
P
DC
V
CC
I
CC
V
PVCC
I
PVCC
+
=
P
SW
F
SW
Q
GHS
PVCC
Q
GLS
VCC
+
()
=


유사한 부품 번호 - L6743BTR

제조업체부품명데이터시트상세설명
logo
STMicroelectronics
L6743 STMICROELECTRONICS-L6743 Datasheet
317Kb / 17P
   High current MOSFET driver
L6743 STMICROELECTRONICS-L6743 Datasheet
354Kb / 17P
   High current MOSFET driver
L6743D STMICROELECTRONICS-L6743D Datasheet
423Kb / 16P
   High current MOSFET driver
L6743DTR STMICROELECTRONICS-L6743DTR Datasheet
423Kb / 16P
   High current MOSFET driver
L6743Q STMICROELECTRONICS-L6743Q Datasheet
317Kb / 17P
   High current MOSFET driver
More results

유사한 설명 - L6743BTR

제조업체부품명데이터시트상세설명
logo
Harris Corporation
HV400 HARRIS-HV400 Datasheet
3Mb / 10P
   High Current MOSFET Driver
logo
STMicroelectronics
L6743D STMICROELECTRONICS-L6743D Datasheet
423Kb / 16P
   High current MOSFET driver
L6747C STMICROELECTRONICS-L6747C Datasheet
341Kb / 15P
   High current MOSFET driver
L6743 STMICROELECTRONICS-L6743 Datasheet
317Kb / 17P
   High current MOSFET driver
L6741 STMICROELECTRONICS-L6741 Datasheet
301Kb / 16P
   High current MOSFET driver
logo
Harris Corporation
HV400-MJ HARRIS-HV400-MJ Datasheet
3Mb / 10P
   High Current MOSFET Driver
logo
STMicroelectronics
L6747ATR STMICROELECTRONICS-L6747ATR Datasheet
415Kb / 15P
   High current MOSFET driver
March 2010 Rev 1
L6743 STMICROELECTRONICS-L6743_08 Datasheet
354Kb / 17P
   High current MOSFET driver
logo
Intersil Corporation
HV400MJ INTERSIL-HV400MJ Datasheet
131Kb / 11P
   High Current MOSFET Driver
logo
ON Semiconductor
NCX57090Y ONSEMI-NCX57090Y_V01 Datasheet
1Mb / 25P
   Isolated High Current IGBT/MOSFET Gate Driver
July, 2022 - Rev. 3
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크교환   |   제조사별 검색
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com