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ADM6348-41ARTZ-R7

更新时间： 2024-11-08 06:36:23
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亚德诺 - ADI 电源电路电源管理电路微处理器复位电路光电二极管
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12页 246K
描述
Ultralow Power, 3-Lead, SOT-23 Microprocessor Reset Circuits

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Ultralow Power, 3-Lead, SOT-23  
Microprocessor Reset Circuits  
ADM6326/ADM6328/ADM6346/ADM6348  
FUNCTIONAL BLOCK DIAGRAMS  
FEATURES  
Ultralow supply current of 1 μA maximum (ADM6326/ADM6328)  
Accurate monitoring of 2.5 V, 3 V, 3.3 V, and 5 V rails  
Reset thresholds available in increments from 2.2 V to 4.63 V  
Glitch immunity from negative-going VCC transients  
2 reset output options  
ADM6326/ADM6346  
V
CC  
RESET  
GENERATOR  
(100ms)  
RESET  
V
REF  
RESET  
Push-pull  
Open-drain  
(ADM6326/ADM6346)  
RESET  
(ADM6328/ADM6348)  
GND  
Minimum reset timeout of 100 ms  
Operating temperature range of −40°C to +85°C  
3-lead SOT-23 package  
Figure 1.  
ADM6328/ADM6348  
APPLICATIONS  
V
CC  
RESET  
GENERATOR  
(100ms)  
RESET  
Telecommunications  
V
REF  
Microprocessor systems  
Desktop and notebook computers  
Portable equipment  
GND  
Figure 2.  
GENERAL DESCRIPTION  
The ADM6326/ADM6328/ADM6346/ADM6348 devices provide  
low cost solutions for protecting sensitive circuitry, such as micro-  
processor and telecommunications circuitry.  
microprocessor in a reset state until conditions have stabilized.  
The reset output remains operational with VCC as low as 1 V.  
The ADM6326 and ADM6346 have an active low push-pull reset  
output. The ADM6328 and ADM6348 have an active low open-  
drain reset output, which requires an external pull-up resistor.  
The ADM6326 and ADM6328 offer a choice of ten reset thresholds  
in increments between 2.2 V and 3.08 V, whereas the ADM6346  
and ADM6348 offer a choice of 14 reset thresholds between 3.3 V  
and 4.63 V.  
With built-in glitch immunity, ultralow supply currents, and  
24 reset threshold voltage options, the ADM6326/ADM6328/  
ADM6346/ADM6348 not only ensure that systems are immune  
to fast transients on VCC, but also that the devices are suitable  
for monitoring a variety of supply voltages in low power,  
portable equipment.  
These devices provide a reset output during power-up, power-  
down, and brownout conditions. On power-up, an internal  
These devices are available in a 3-lead SOT-23 package and  
operate over the extended temperature range of −40°C to +85°C.  
RESET  
timer holds  
asserted for at least 100 ms. This holds the  
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 that may result from its use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.461.3113  
www.analog.com  
©2009 Analog Devices, Inc. All rights reserved.  
 
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ADM6348-41ARTZ-R7 替代型号

型号 品牌 替代类型 描述 数据表
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 		Ultralow Power, 3-Lead, SOT-23 Microprocessor Reset Circuits
ADM6348-46ARTZ-R7 ROCHESTER

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