전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

TC7660SEPA 데이터시트(PDF) 6 Page - Microchip Technology

부품명 TC7660SEPA
상세설명  SUPER CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
Download  11 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC7660SEPA 데이터시트(HTML) 6 Page - Microchip Technology

Back Button TC7660SEPA Datasheet HTML 2Page - Microchip Technology TC7660SEPA Datasheet HTML 3Page - Microchip Technology TC7660SEPA Datasheet HTML 4Page - Microchip Technology TC7660SEPA Datasheet HTML 5Page - Microchip Technology TC7660SEPA Datasheet HTML 6Page - Microchip Technology TC7660SEPA Datasheet HTML 7Page - Microchip Technology TC7660SEPA Datasheet HTML 8Page - Microchip Technology TC7660SEPA Datasheet HTML 9Page - Microchip Technology TC7660SEPA Datasheet HTML 10Page - Microchip Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 11 page
background image
6
TC7660S
SUPER CHARGE PUMP DC-TO-DC
VOLTAGE CONVERTER
TC7660S-14 9/16/96
© 2001 Microchip Technology Inc.
DS21467A
Figure 8. Positive Voltage Multiplier
Combined Negative Voltage Conversion
and Positive Supply Multiplication
Figure 9 combines the functions shown in Figures 3 and
8 to provide negative voltage conversion and positive volt-
age multiplication simultaneously. This approach would be,
for example, suitable for generating +9V and – 5V from an
existing +5V supply. In this instance, capacitors C1 and C3
perform the pump and reservoir functions, respectively, for
the generation of the negative voltage, while capacitors C2
and C4 are pump and reservoir, respectively, for the multi-
plied positive voltage. There is a penalty in this configuration
which combines both functions, however, in that the source
impedances of the generated supplies will be somewhat
higher due to the finite impedance of the common charge
pump driver at pin 2 of the device.
Efficient Positive Voltage
Multiplication/Conversion
Since the switches that allow the charge pumping op-
eration are bidirectional, the charge transfer can be per-
formed backwards as easily as forwards. Figure 10 shows
a TC7660S transforming – 5V to +5V (or +5V to +10V, etc.).
The only problem here is that the internal clock and switch-
drive section will not operate until some positive voltage has
been generated. An initial inefficient pump, as shown in
Figure 9, could be used to start this circuit up, after which it
Figure 7. Lowering Oscillator Frequency
1
2
3
4
8
7
6
5
+
V
+
VOUT
C1
COSC
+
C2
TC7660S
will bypass the other (D1 and D2 in Figure 9 would never turn
on), or else the diode and resistor shown dotted in Figure 10
can be used to "force" the internal regulator on.
Voltage Splitting
The same bidirectional characteristics used in Figure 10
can also be used to split a higher supply in half, as shown in
Figure 11. The combined load will be evenly shared between
the two sides. Once again, a high value resistor to the LV pin
ensures start-up. Because the switches share the load in
parallel, the output impedance is much lower than in the
standard circuits, and higher currents can be drawn from the
device. By using this circuit, and then the circuit of Figure 5,
+15V can be converted (via +7.5V and – 7.5V) to a nominal
–15V, though with rather high series resistance (~250
Ω).
1
2
3
4
8
7
6
5
V+
VOUT =
(2 V+) – (2 VF)
+
C2
D1
D2
+
C1
TC7660S
1
2
3
4
8
7
6
5
+
V +
VOUT =
(2 V +) – (2 VF)
C1
D1
+
+
C3
C4
VOUT = –V
+
C2
TC7660S
D2
+
Negative Voltage Generation for
Display ADCs
The TC7106 is designed to work from a 9V battery. With
a fixed power supply system, the TC7106 will perform
conversions with input signal referenced to power supply
ground.
Negative Supply Generation for
4
¹⁄₂ Digit Data Acquisition System
The TC7135 is a 4
¹⁄₂ digit ADC operating from ±5V
supplies. The TC7660S provides an inexpensive –5V source.
(See AN16 and AN17 for TC7135 interface details and
software routines.)
Figure 9. Combined Negative Converter and Positive Multiplier


유사한 부품 번호 - TC7660SEPA

제조업체부품명데이터시트상세설명
logo
TelCom Semiconductor, I...
TC7660SEPA TELCOM-TC7660SEPA Datasheet
136Kb / 8P
   SUPER CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
logo
Microchip Technology
TC7660SEPA MICROCHIP-TC7660SEPA Datasheet
95Kb / 11P
   SUPER CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
2001
TC7660SEPA MICROCHIP-TC7660SEPA Datasheet
458Kb / 24P
   SUPER CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
07/14/15
TC7660SEPA713 MICROCHIP-TC7660SEPA713 Datasheet
458Kb / 24P
   SUPER CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
07/14/15
TC7660SEPA723 MICROCHIP-TC7660SEPA723 Datasheet
458Kb / 24P
   SUPER CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
07/14/15
More results

유사한 설명 - TC7660SEPA

제조업체부품명데이터시트상세설명
logo
Microchip Technology
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
logo
Microchip Technology
TC7660S MICROCHIP-TC7660S_15 Datasheet
458Kb / 24P
   SUPER CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
07/14/15
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


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