欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數(shù)資料
型號(hào): MAX828EUK-T
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 穩(wěn)壓器
英文描述: IC-SM-VOLTAGE INVERTER
中文描述: SWITCHED CAPACITOR CONVERTER, 20 kHz SWITCHING FREQ-MAX, PDSO5
封裝: SOT-23, 5 PIN
文件頁(yè)數(shù): 7/18頁(yè)
文件大小: 158K
代理商: MAX828EUK-T
MAX828, MAX829
http://onsemi.com
7
Capacitor Selection
In order to maintain the lowest output resistance and
output ripple voltage, it is recommended that low ESR
capacitors be used. Additionally, larger values of C
1
will
lower the output resistance and larger values of C
2
will
reduce output voltage ripple. (See Equation 3).
Table 1 shows various values of C
1
, C
2
and C
3
with the
corresponding output resistance values at 25
°
C. Table 2
shows the output voltage ripple for various values of C
1
, C
2
and C
3
. The data in Tables 1 and 2 was measured not
calculated.
Table 1. Output Resistance vs. Capacitance
(C
1
= C
2
= C
3
), V
in
= 4.75 V and V
out
= 4.0 V
C
1
= C
2
= C
3
( F)
MAX828 R
out
( )
MAX829 R
out
( )
0.7
127.2
55.7
1.4
67.7
36.8
3.3
36
26.0
7.3
26.7
24.9
10
25.9
25.1
24
24.3
25.2
50
24
24
Table 2. Output Voltage Ripple vs. Capacitance
(C
1
= C
2
= C
3
), V
in
= 4.75 V and V
out
= 4.0 V
C
1
= C
2
= C
3
( F)
MAX828 Ripple
(mV)
MAX829 Ripple
(mV)
0.7
377.5
320
1.4
360.5
234
3.3
262
121
7.3
155
62.1
10
126
51.25
24
55.1
25.2
50
36.6
27.85
Input Supply Bypassing
The input voltage, V
in
should be capacitively bypassed to
reduce AC impedance and minimize noise effects due to the
switching internals in the device. If the device is loaded from
V
out
to GND, it is recommended that a large value capacitor
(at least equal to C
1
) be connected from V
in
to GND. If the
device is loaded from V
in
to V
out
a small (0.7 F) capacitor
between the pins is sufficient.
Voltage Inverter
The most common application for a charge pump is the
voltage inverter (Figure 20). This application uses two or
three external capacitors. The capacitors C
1
(pump
capacitor) and C
2
(output capacitor) are required. The input
bypass capacitor C
3
, may be necessary depending on the
application. The output is equal to V
in
plus any voltage
drops due to loading. Refer to Tables 1 and 2 for capacitor
selection. The test setup used for the majority of the
characterization is shown in Figure 20.
Layout Considerations
As with any switching power supply circuit, good layout
practice is recommended. Mount components as close
together as possible to minimize stray inductance and
capacitance. Also use a large ground plane to minimize
noise leakage into other circuitry.
Capacitor Resources
Selecting the proper type of capacitor can reduce
switching loss. Low ESR capacitors are recommended. The
MAX828 and MAX829 were characterized using the
capacitors listed in Table 3. This list identifies low ESR
capacitors for the voltage inverter application.
Table 3. Capacitor Types
Manufacturer/Contact
Part Types/Series
AVX
8434489411
www.avxcorp.com
TPS
Cornell Dubilier
5089968561
www.cornelldubilier.com
ESRD
ll d bili
Sanyo/Oscon
6196616835
www.sanyovideo.com/oscon.htm
SN
SVP
Vishay
6032241961
i h
www.vishay.com
593D
594
5
4
2
3
1
OSC
MAX828: Capacitors = 10 F
MAX829: Capacitors = 3.3 F
+
V
in
V
out
Figure 24. Voltage Inverter
+
+
相關(guān)PDF資料
PDF描述
MAX829EUK-T IC-SMD-SWT CAPACITOR INVERTER
MAX828 Parallel-Load 8-Bit Shift Registers 16-CDIP -55 to 125
MAX829 Switched Capacitor Voltage Converter
MAX829EUK Parallel-Load 8-Bit Shift Registers 16-CDIP -55 to 125
MAX828EUKG Switched Capacitor Voltage Converter
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX828SNTR 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel 制造商:ON Semiconductor 功能描述:
MAX829 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Switched Capacitor Voltage Converter
MAX829C/D 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Switched-Capacitor Voltage Inverters
MAX829C/D DIE 制造商:Maxim Integrated Products 功能描述:
MAX829EUK 功能描述:電荷泵 Switched Cap Voltage RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube
主站蜘蛛池模板: 北辰区| 淮南市| 宜宾县| 东阿县| 博湖县| 青浦区| 繁昌县| 乐陵市| 崇文区| 华池县| 肇庆市| 朝阳县| 米林县| 望江县| 上饶县| 东港市| 昔阳县| 象山县| 连云港市| 怀集县| 渑池县| 神农架林区| 沙河市| 五华县| 聂荣县| 老河口市| 达拉特旗| 四川省| 石柱| 元谋县| 德令哈市| 莱芜市| 库伦旗| 冀州市| 大城县| 通州市| 汉寿县| 洛川县| 安庆市| 始兴县| 花莲县|