Datenblatt-Suchmaschine für elektronische Bauteile
  German  ▼
ALLDATASHEETDE.COM

X  

MC33065-H Datenblatt(PDF) 9 Page - ON Semiconductor

Teilenummer MC33065-H
Bauteilbeschribung  High Performance Dual Channel Current Mode Controllers
Download  18 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Hersteller  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

MC33065-H Datenblatt(HTML) 9 Page - ON Semiconductor

Back Button MC33065-H Datasheet HTML 5Page - ON Semiconductor MC33065-H Datasheet HTML 6Page - ON Semiconductor MC33065-H Datasheet HTML 7Page - ON Semiconductor MC33065-H Datasheet HTML 8Page - ON Semiconductor MC33065-H Datasheet HTML 9Page - ON Semiconductor MC33065-H Datasheet HTML 10Page - ON Semiconductor MC33065-H Datasheet HTML 11Page - ON Semiconductor MC33065-H Datasheet HTML 12Page - ON Semiconductor MC33065-H Datasheet HTML 13Page - ON Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 18 page
background image
MC34065−H, L
http://onsemi.com
9
When designing a high power switching regulator it may
be desirable to reduce the internal clamp voltage in order to
keep the power dissipation of RS to a reasonable level. A
simple method to adjust this voltage is shown in Figure 19.
The two external diodes are used to compensate the internal
diodes, yielding a constant clamp voltage over temperature.
Erratic operation due to noise pickup can result if there is an
excessive reduction of the Ipk(max) clamp voltage.
A narrow spike on the leading edge of the current
waveform can usually be observed and may cause the power
supply to exhibit an instability when the output is lightly
loaded. This spike is due to the power transformer
interwinding capacitance and output rectifier recovery time.
The addition of an RC filter on the Current Sense input with
a time constant that approximates the spike duration will
usually eliminate the instability, refer to Figure 24.
Undervoltage Lockout
Two Undervoltage Lockout comparators have been
incorporated to guarantee that the IC is fully functional
before the output stages are enabled. The positive power
supply terminal (VCC) and the reference output (Vref) are
each monitored by separate comparators. Each has built−in
hysteresis to prevent erratic output behavior as their
respective thresholds are crossed. The VCC comparator
upper and lower thresholds are 14 V/10 V for −H suffix, and
8.4 V/7.6 V for −L suffix. The Vref comparator upper and
lower thresholds are 3.6 V/3.4 V respectively. The large
hysteresis and low startup current of the −H suffix version
makes it ideally suited in off−line converter applications
where efficient bootstrap startup techniques are required
(Figure 28). The −L suffix version is intended for lower
voltage dc−to−dc converter applications. The minimum
operating voltage for the −H suffix is 11 V and 8.2 V for the
−L suffix.
Drive Outputs and Drive Ground
Each section contains a single totem−pole output stage
that is specifically designed for direct drive of power
MOSFETs. The Drive Outputs are capable of up to ±400 mA
peak current with a typical rise and fall time of 50 ns with a
1.0 nF load. Additional internal circuitry has been added to
keep the outputs in a sinking mode whenever an
Undervoltage Lockout is active. This characteristic
eliminates the need for an external pull−down resistor. The
totem−pole output has been optimized to minimize
cross−conduction current in high speed operation. The
addition of two 10 Ω resistors, one in series with the source
output transistor and one in series with the sink output
transistor, reduces the cross−conduction current to minimal
levels, as shown in Figure 13.
Although the Drive Outputs were optimized for
MOSFETs, they can easily supply the negative base current
required by bipolar NPN transistors for enhanced turn−off
(Figure 25).


Ähnliche Teilenummer - MC33065-H

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
ON Semiconductor
MC33065DW ONSEMI-MC33065DW Datasheet
494Kb / 15P
   HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLER
1996 REV 1
MC33065DW-H ONSEMI-MC33065DW-H Datasheet
417Kb / 14P
   HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS
1996 REV 0
MC33065DW-L ONSEMI-MC33065DW-L Datasheet
417Kb / 14P
   HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS
1996 REV 0
MC33065P ONSEMI-MC33065P Datasheet
494Kb / 15P
   HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLER
1996 REV 1
MC33065P-H ONSEMI-MC33065P-H Datasheet
417Kb / 14P
   HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS
1996 REV 0
More results

Ähnliche Beschreibung - MC33065-H

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
ON Semiconductor
MC34065-H ONSEMI-MC34065-H Datasheet
417Kb / 14P
   HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS
1996 REV 0
logo
Motorola, Inc
UC3842B MOTOROLA-UC3842B Datasheet
401Kb / 16P
   HIGH PERFORMANCE CURRENT MODE CONTROLLERS
logo
Freescale Semiconductor...
MC34129EF FREESCALE-MC34129EF Datasheet
444Kb / 16P
   high performance current mode controllers
logo
ON Semiconductor
UC3844BNG ONSEMI-UC3844BNG Datasheet
399Kb / 19P
   High Performance Current Mode Controllers
August, 2013 ??Rev. 11
UC3845BDR2G ONSEMI-UC3845BDR2G Datasheet
387Kb / 19P
   High Performance Current Mode Controllers
December, 2012 ??Rev. 11
UC3845BVDG ONSEMI-UC3845BVDG Datasheet
399Kb / 19P
   High Performance Current Mode Controllers
August, 2013 ??Rev. 11
UC3845BVDR2G ONSEMI-UC3845BVDR2G Datasheet
399Kb / 19P
   High Performance Current Mode Controllers
August, 2013 ??Rev. 11
UC3844BVDG ONSEMI-UC3844BVDG Datasheet
399Kb / 19P
   High Performance Current Mode Controllers
August, 2013 ??Rev. 11
logo
Unisonic Technologies
UC3842B UTC-UC3842B_08 Datasheet
518Kb / 11P
   HIGH PERFORMANCE CURRENT MODE CONTROLLERS
logo
Motorola, Inc
UC3844 MOTOROLA-UC3844 Datasheet
376Kb / 14P
   HIGH PERFORMANCE CURRENT MODE CONTROLLERS
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18


Datenblatt Download

Go To PDF Page


Link URL




Privatsphäre und Datenschutz
ALLDATASHEETDE.COM
War ALLDATASHEET hilfreich?  [ DONATE ] 

Über Alldatasheet   |   Werbung   |   Kontakt   |   Privatsphäre und Datenschutz   |   Linktausch   |   Hersteller
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