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參數(shù)資料
| 型號： | ADM8829 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Switched-Capacitor Voltage Inverter with Shutdown(帶關(guān)斷的開關(guān)電容電壓反相器) |
| 中文描述： | 開關(guān)電容電壓逆變器關(guān)斷（帶關(guān)斷的開關(guān)電容電壓反相器） |
| 文件頁數(shù)： | 1/6頁 |
| 文件大小： | 75K |
| 代理商： | ADM8829 |
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
ADM8828/ADM8829
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1998
Switched-Capacitor
Voltage Inverter with Shutdown
FUNCTIONAL BLOCK DIAGRAMS
TOP VIEW
(Not to Scale)
OUT
IN
CAP–
CAP+
SHDN
GND
ADM8828
1
2
3
6
5
4
TOP VIEW
(Not to Scale)
OUT
IN
CAP+
NC
GND
ADM8829
1
2
3
6
5
4
CAP–
NC = NO CONNECT
FEATURES
Inverts Input Supply Voltage
99% Voltage Conversion Efficiency
25 mA Output Current
Shutdown Function
Requires Only Two Capacitors
1
m
F Capacitors
18
V
Output Resistance
+1.5 V to +5.5 V Input Range
600
m
A Quiescent Current
20 nA Shutdown Current (ADM8828)
APPLICATIONS
Handheld Instruments
LCD Panels
Cellular Phones
PDAs
Remote Data Acquisition
Op Amp Power Supplies
GENERAL DESCRIPTION
The ADM8828/ADM8829 is a charge-pump voltage inverter
which may be used to generate a negative supply from a positive
input. Input voltages ranging from +1.5 V to +5.5 V can be
inverted into a negative –1.5 V to –5.5 V output supply. This
inverting scheme is ideal for generating a negative rail in single
power-supply systems. Only two small external capacitors are
needed for the charge pump. Output currents up to 25 mA with
greater than 99% efficiency are achievable.
The ADM8828 also features a low power shutdown (SHDN)
pin. This can be used to disable the device and reduce the quies-
cent current to 20 nA.
The ADM8828/ADM8829 is available in a 6-lead SOT-23 lead
package.
+
+
+1.5V TO +5.5V
INPUT
SHUTDOWN
CONTROL
C1
1
m
F
C2
1
m
F
INVERTED
NEGATIVE
OUTPUT
ADM8828/
ADM8829
CAP+
CAP–
GND
IN
SHDN
OUT
Figure 1. Typical Circuit Configuration
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADM8829ART | 制造商:AD 制造商全稱:Analog Devices 功能描述:Switched-Capacitor Voltage Inverter with Shutdown |
| ADM8829ART-REEL7 | 制造商:Rochester Electronics LLC 功能描述:CHARGED PUMP INVERTER I.C. - Tape and Reel 制造商:Analog Devices 功能描述: |
| ADM8829ARTZ-REEL | 功能描述:IC REG SWITCHED CAP INV SOT23-6 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:500 系列:- 類型:切換式電容器（充電泵），反相 輸出類型:固定 輸出數(shù):1 輸出電壓:-3V 輸入電壓:2.3 V ~ 5.5 V PWM 型:Burst Mode? 頻率 - 開關(guān):900kHz 電流 - 輸出:100mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細(xì)型，TSOT-23-6 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:TSOT-23-6 其它名稱:LTC1983ES6-3#TRMTR |
| ADM8829ARTZ-REEL7 | 功能描述:IC REG SWITCHED CAP INV SOT23-6 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:500 系列:- 類型:切換式電容器（充電泵），反相 輸出類型:固定 輸出數(shù):1 輸出電壓:-3V 輸入電壓:2.3 V ~ 5.5 V PWM 型:Burst Mode? 頻率 - 開關(guān):900kHz 電流 - 輸出:100mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細(xì)型，TSOT-23-6 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:TSOT-23-6 其它名稱:LTC1983ES6-3#TRMTR |
| ADM8830 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Charge Pump Regulator for Color TFT Panel |
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