Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

TC7660MOA713 Fiches technique(PDF) 7 Page - Microchip Technology

No de pièce TC7660MOA713
Description  Charge Pump DC-to-DC Voltage Converter
Download  18 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  MICROCHIP [Microchip Technology]
Site Internet  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC7660MOA713 Fiches technique(HTML) 7 Page - Microchip Technology

Back Button TC7660MOA713 Datasheet HTML 3Page - Microchip Technology TC7660MOA713 Datasheet HTML 4Page - Microchip Technology TC7660MOA713 Datasheet HTML 5Page - Microchip Technology TC7660MOA713 Datasheet HTML 6Page - Microchip Technology TC7660MOA713 Datasheet HTML 7Page - Microchip Technology TC7660MOA713 Datasheet HTML 8Page - Microchip Technology TC7660MOA713 Datasheet HTML 9Page - Microchip Technology TC7660MOA713 Datasheet HTML 10Page - Microchip Technology TC7660MOA713 Datasheet HTML 11Page - Microchip Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 18 page
background image
 2002 Microchip Technology Inc.
DS21465B-page 7
TC7660
5.0
APPLICATIONS INFORMATION
5.1
Simple Negative Voltage
Converter
Figure 5-1 shows typical connections to provide a
negative supply where a positive supply is available. A
similar scheme may be employed for supply voltages
anywhere in the operating range of +1.5V to +10V,
keeping in mind that pin 6 (LV) is tied to the supply
negative (GND) only for supply voltages below 3.5V.
FIGURE 5-1:
Simple Negative Converter.
The output characteristics of the circuit in Figure 5-1
are those of a nearly ideal voltage source in series with
a 70
Ω resistor. Thus, for a load current of -10 mA and
a supply voltage of +5V, the output voltage would be
-4.3V.
5.2
Paralleling Devices
To reduce the value of ROUT, multiple TC7660 voltage
converters can be connected in parallel (Figure 5-2).
The output resistance will be reduced by approximately
a factor of n, where n is the number of devices
connected in parallel.
EQUATION
While each device requires its own pump capacitor
(C1), all devices may share one reservoir capacitor
(C2). To preserve ripple performance, the value of C2
should be scaled according to the number of devices
connected in parallel.
5.3
Cascading Devices
A larger negative multiplication of the initial supply volt-
age can be obtained by cascading multiple TC7660
devices. The output voltage and the output resistance
will both increase by approximately a factor of n, where
n is the number of devices cascaded.
EQUATION
FIGURE 5-2:
Paralleling Devices Lowers Output Impedance.
FIGURE 5-3:
Increased Output Voltage By Cascading Devices.
+
V+
+
1
2
3
4
8
7
6
5
TC7660
VOUT*
C1
10 µF
* VOUT = -V+ for 1.5V ≤ V+ ≤ 10V
C2
10 µF
ROUT
ROUT of TC7660
()
n number of devices
()
---------------------------------------------------
=
VOUT
n
– V
+
()
=
ROUT
nR
× OUT of TC7660
()
=
“n”
“1”
RL
+
V+
+
1
2
3
4
8
7
6
5
TC7660
C1
C2
+
1
2
3
4
8
7
6
5
TC7660
C1
V
OUT *
“1”
+
V+
+
1
2
3
4
8
7
6
5
TC7660
10 µF
* VOUT = -n V
+ for 1.5V ≤ V+ ≤ 10V
“n”
+
1
2
3
4
8
7
6
5
TC7660
10 µF
10 µF
+
10 µF


Numéro de pièce similaire - TC7660MOA713

FabricantNo de pièceFiches techniqueDescription
logo
Microchip Technology
TC7660MOA713 MICROCHIP-TC7660MOA713 Datasheet
1Mb / 20P
   Charge Pump DC-to-DC Voltage Converter
11/29/11
More results

Description similaire - TC7660MOA713

FabricantNo de pièceFiches techniqueDescription
logo
Microchip Technology
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
logo
TelCom Semiconductor, I...
TC7660 TELCOM-TC7660 Datasheet
131Kb / 9P
   CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
logo
Microchip Technology
TC7662B MICROCHIP-TC7662B Datasheet
92Kb / 11P
   CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
2001
TC7660S MICROCHIP-TC7660S Datasheet
95Kb / 11P
   SUPER CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
2001
logo
TelCom Semiconductor, I...
TC7660S TELCOM-TC7660S Datasheet
136Kb / 8P
   SUPER CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
More results


Html Pages

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


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
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