поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

TC7662AIJA датащи(PDF) 7 Page - Microchip Technology

номер детали TC7662AIJA
подробное описание детали  Charge Pump DC-to-DC Converter
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC7662AIJA датащи(HTML) 7 Page - Microchip Technology

Back Button TC7662AIJA Datasheet HTML 3Page - Microchip Technology TC7662AIJA Datasheet HTML 4Page - Microchip Technology TC7662AIJA Datasheet HTML 5Page - Microchip Technology TC7662AIJA Datasheet HTML 6Page - Microchip Technology TC7662AIJA Datasheet HTML 7Page - Microchip Technology TC7662AIJA Datasheet HTML 8Page - Microchip Technology TC7662AIJA Datasheet HTML 9Page - Microchip Technology TC7662AIJA Datasheet HTML 10Page - Microchip Technology TC7662AIJA Datasheet HTML 11Page - Microchip Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 16 page
background image
 2001-2012 Microchip Technology Inc.
DS21468B-page 7
TC7662A
4.2
Output Ripple
ESR also affects the ripple voltage seen at the output.
The total ripple is determined by 2 voltages, A and B,
as shown in Figure 4-2. Segment A is the voltage drop
across the ESR of CR at the instant it goes from being
charged by CP (current flowing into CR) to being dis-
charged through the load (current flowing out of CR).
The magnitude of this current change is 2 x IOUT, hence
the total drop is 2 x IOUT x ESRCR volts. Segment B is
the voltage change across CR during time t2, the half of
the cycle when CR supplies current to the load. The
drop at B is IOUT x t2/CR volts. The peak-to-peak ripple
voltage is the sum of these voltage drops:
FIGURE 4-2:
OUTPUT RIPPLE
4.3
Paralleling Devices
Any number of TC7662A voltage converters may be
paralleled to reduce output resistance (Figure 4-3).
The reservoir capacitor, CR, serves all devices, while
each device requires its own pump capacitor, CP. The
resultant output resistance would be approximately:
4.4
Cascading Devices
The TC7662A may be cascaded as shown (Figure 4-4)
to produce larger negative multiplication of the initial
supply voltage. However, due to the finite efficiency of
each device, the practical limit is 10 devices for light
loads. The output voltage is defined by:
VOUT = – n (VIN)
where n is an integer representing the number of
devices cascaded. The resulting output resistance
would be approximately the weighted sum of the
individual TC7662A ROUT values.
FIGURE 4-3:
PARALLELING DEVICES LOWERS OUTPUT IMPEDANCE
FIGURE 4-4:
INCREASED OUTPUT VOLTAGE BY CASCADING DEVICES
1
2 x fPUMP x CR
VRIPPLE (
+ 2 x ESRCR x IOUT)
t2
t1
B
A
V
0
-(VDD)
ROUT =
ROUT (of TC7662A)
n (number of devices)
1
2
3
4
8
7
6
5
TC7662A
VDD
1
2
3
4
8
7
6
5
TC7662A
RL
C2
C1
"n"
"1"
+
C1
1
2
3
4
8
7
6
5
VDD
1
2
3
4
8
7
6
5
10
μF
10
μF
"n"
"1"
10
μF
V
OUT*
+
+
+
TC7662A
TC7662A
*VOUT = -nVDD
10
μF


Аналогичный номер детали - TC7662AIJA

производительномер деталидатащиподробное описание детали
logo
TelCom Semiconductor, I...
TC7662AIJA TELCOM-TC7662AIJA Datasheet
62Kb / 5P
   CHARGE PUMP DC-TO-DC CONVERTER
logo
Microchip Technology
TC7662AIJA MICROCHIP-TC7662AIJA Datasheet
53Kb / 7P
   CHARGE PUMP DC-TO-DC CONVERTER
2001
TC7662AIJA MICROCHIP-TC7662AIJA Datasheet
457Kb / 14P
   Charge Pump DC-to-DC Converter
2002
More results

Аналогичное описание - TC7662AIJA

производительномер деталидатащиподробное описание детали
logo
TelCom Semiconductor, I...
TC7662A TELCOM-TC7662A Datasheet
62Kb / 5P
   CHARGE PUMP DC-TO-DC CONVERTER
logo
Microchip Technology
TC7662A MICROCHIP-TC7662A Datasheet
53Kb / 7P
   CHARGE PUMP DC-TO-DC CONVERTER
2001
TC7662A MICROCHIP-TC7662A_02 Datasheet
457Kb / 14P
   Charge Pump DC-to-DC Converter
2002
TC7660 MICROCHIP-TC7660 Datasheet
91Kb / 12P
   CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
2001
logo
ON Semiconductor
MC7660 ONSEMI-MC7660 Datasheet
191Kb / 12P
   Charge Pump DC-to-DC Voltage Converter
February, 2000 ??Rev. 2
logo
Microchip Technology
TC1044S MICROCHIP-TC1044S Datasheet
92Kb / 11P
   Charge Pump DC-TO-DC Voltage Converter
2001
logo
TelCom Semiconductor, I...
TC1044S TELCOM-TC1044S Datasheet
141Kb / 8P
   CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
TC7662B TELCOM-TC7662B Datasheet
133Kb / 9P
   CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
logo
Microchip Technology
TC7660 MICROCHIP-TC7660_16 Datasheet
1Mb / 20P
   Charge Pump DC-to-DC Voltage Converter
11/29/11
TC7660 MICROCHIP-TC7660_02 Datasheet
386Kb / 18P
   Charge Pump DC-to-DC Voltage Converter
2002
More results


Html Pages

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


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