поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

CS5165 датащи(PDF) 11 Page - Cherry Semiconductor Corporation

номер детали CS5165
подробное описание детали  Fast, Precise 5-Bit Synchronous Buck Controller for the Next Generation Low Voltage Pentium II Processors
Download  19 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  CHERRY [Cherry Semiconductor Corporation]
домашняя страница  http://www.cherrycorp.com/
Logo CHERRY - Cherry Semiconductor Corporation

CS5165 датащи(HTML) 11 Page - Cherry Semiconductor Corporation

Back Button CS5165 Datasheet HTML 7Page - Cherry Semiconductor Corporation CS5165 Datasheet HTML 8Page - Cherry Semiconductor Corporation CS5165 Datasheet HTML 9Page - Cherry Semiconductor Corporation CS5165 Datasheet HTML 10Page - Cherry Semiconductor Corporation CS5165 Datasheet HTML 11Page - Cherry Semiconductor Corporation CS5165 Datasheet HTML 12Page - Cherry Semiconductor Corporation CS5165 Datasheet HTML 13Page - Cherry Semiconductor Corporation CS5165 Datasheet HTML 14Page - Cherry Semiconductor Corporation CS5165 Datasheet HTML 15Page - Cherry Semiconductor Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 19 page
background image
Overvoltage Protection
Overvoltage protection (OVP) is provided as result of the
normal operation of the V2™ control topology and requires
no additional external components. The control loop
responds to an overvoltage condition within 100ns, causing
the top MOSFET to shut off, disconnecting the regulator
from its input voltage. The bottom MOSFET is then activat-
ed, resulting in a “crowbar” action to clamp the output
voltage and prevent damage to the load (see Figures 12
and 13). The regulator will remain in this state until the
overvoltage condition ceases or the input voltage is pulled
low. The bottom FET and board trace must be properly
designed to implement the OVP function. If a dedicated
OVP output is required, it can be implemented using the
circuit in figure 14. In this figure the OVP signal will go
high (overvoltage condition), if the output voltage (VCORE)
exceeds 20% of the voltage set by the particular DAC code
and provided that PWRGD is low. It is also required that
the overvoltage condition be present for at least the
PWRGD delay time for the OVP signal to be activated. The
resistor values shown in figure 14 are for VDAC = +2.8V
(DAC = 10111). The VOVP (overvoltage trip-point) can be
set using the following equation:
VOVP = VBEQ3
(1+ )
Figure 12: OVP response to an input-to-output short circuit by immedi-
ately providing 0% duty cycle, crow-barring the input voltage to
ground.
Figure 13: OVP response to an input-to-output short circuit by pulling
the input voltage to ground.
Figure 14: Circuit to implement a dedicated OVP output using the
CS5165.
Output Enable Circuit
The Enable pin (pin 8) is used to enable or disable the regu-
lator output voltage, and is consistent with TTL DC specifi-
cations. It is internally pulled-up. If pulled low (below
0.8V), the output voltage is disabled. At the same time the
Power Good and Soft Start pins are pulled low, so that
when normal operation resumes power-up of the CS5165
goes through the Soft Start sequence. Upon pulling the
Enable pin low, the internal IC bias is completely shut off,
resulting in total shutdown of the Controller IC.
Power Good Circuit
The Power Good pin (pin 13) is an open-collector signal
consistent with TTL DC specifications. It is externally
pulled -up, and is pulled low (below 0.3V) when the regu-
lator output voltage typically exceeds ± 8.5% of the nomi-
nal output voltage. Maximum output voltage deviation
before Power Good is pulled low is ± 12%.
+5V
+5V
VCORE
CS5165
PWRGD
Q1
2N3906
2N3904
Q2
2N3906
Q3
R1
R2
OVP
10K
20K
10K
5K
10K
15K
56K
Trace 4 = 5V from PC Power Supply (2V/div.)
Trace 1 = Regulator Output Voltage (1V/div.)
Trace 4 = 5V from PC Power Supply (5V/div.)
Trace1 = Regulator Output Voltage (1V/div.)
Trace 2 = Inductor Switching Node (5V/div.)
R2
R1
11
Application Information: continued


Аналогичный номер детали - CS5165

производительномер деталидатащиподробное описание детали
logo
ON Semiconductor
CS5165 ONSEMI-CS5165 Datasheet
718Kb / 21P
   5?묪it Synchronous CPU Buck Controller
July, 2006 ??Rev. 4
CS5165A ONSEMI-CS5165A Datasheet
497Kb / 18P
   5?묪it Synchronous CPU Buck Controller
October, 2005 ??Rev. 1
CS5165AGDW16 ONSEMI-CS5165AGDW16 Datasheet
497Kb / 18P
   5?묪it Synchronous CPU Buck Controller
October, 2005 ??Rev. 1
CS5165AGDW16G ONSEMI-CS5165AGDW16G Datasheet
497Kb / 18P
   5?묪it Synchronous CPU Buck Controller
October, 2005 ??Rev. 1
CS5165AGDWR16 ONSEMI-CS5165AGDWR16 Datasheet
497Kb / 18P
   5?묪it Synchronous CPU Buck Controller
October, 2005 ??Rev. 1
More results

Аналогичное описание - CS5165

производительномер деталидатащиподробное описание детали
logo
Cherry Semiconductor Co...
CS5165H CHERRY-CS5165H Datasheet
283Kb / 20P
   Fast, Precise 5-Bit Synchronous Buck Controller for the Next Generation Low Voltage Pentium II Processors
logo
Analog Devices
ADP3157 AD-ADP3157 Datasheet
173Kb / 12P
   5-Bit Programmable Synchronous Controller for Pentium III Processors
REV. A
logo
ON Semiconductor
NCP81147 ONSEMI-NCP81147 Datasheet
117Kb / 12P
   Precise Low Voltage Synchronous Buck Controller
August, 2014 ??Rev. 0
NCP81042 ONSEMI-NCP81042 Datasheet
189Kb / 12P
   Precise Low Voltage Synchronous Buck Controller
August, 2012 ??Rev. P0
NCP81147 ONSEMI-NCP81147_16 Datasheet
114Kb / 12P
   Precise Low Voltage Synchronous Buck Controller
August, 2016 ??Rev. 1
NCP81230H ONSEMI-NCP81230H Datasheet
109Kb / 12P
   Precise Low Voltage Synchronous Buck Controller
September, 2014 ??Rev. P1
NCP5230MNTWG ONSEMI-NCP5230MNTWG Datasheet
158Kb / 12P
   Precise Low Voltage Synchronous Buck
January, 2013 ??Rev. 1
logo
Analog Devices
ADP3152 AD-ADP3152 Datasheet
274Kb / 12P
   5-Bit Programmable Synchronous Switching Regulator Controller for Pentium II Processor
REV. 0
logo
Linear Technology
LTC1553L LINER-LTC1553L Datasheet
370Kb / 20P
   5-Bit Programmable Synchronous Switching Regulator Controller for Pentium II Processor
LTC1553 LINER-LTC1553 Datasheet
399Kb / 24P
   5-Bit Programmable Synchronous Switching Regulator Controller for Pentium II Processor
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
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