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ADM6306D331ARJZ-R7 用户编程技术手册 - ADI（亚德诺）
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ADI（亚德诺）
分类:
电源监控芯片
封装:
SOT-23-5
描述:
多输入可编程监控IC Multiple Input Programmable Supervisory ICs
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ADM6306D331ARJZ-R7数据手册
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Multiple Input Programmable
Supervisory ICs
Data Sheet
ADM6305/ADM6306
FEATURES
Adjustable input threshold voltage options: 0.4 V and 1.23 V
Pre-trimmed V
CC
threshold options (ADM6306)
Increments between 2.5 V and 5 V
Manual reset input (ADM6306)
4 factory programmed reset timeout delays
1 ms, 20 ms, 140 ms, and 1.12 sec (minimum)
Reset output stage: active low, open drain
Low power consumption: 5 µA typical
Power supply glitch immunity
5-lead SOT-23 package
Temperature range: −40°C to +125°C
APPLICATIONS
Portable/battery-operated equipment
Microprocessor systems
Multivoltage applications
FUNCTIONAL BLOCK DIAGRAMS
Figure 1.
Figure 2.
GENERAL DESCRIPTION
The ADM6305/ADM6306 are dual voltage supervisors
designed to monitor two supplies and provide a reset signal to
DSP- and microprocessor-based systems. Low supply current
and a small form factor make these devices suitable for portable
and battery-operated applications.
If a monitored power supply voltage falls below the minimum
voltage threshold, a single active low output asserts triggering a
system reset. Once all voltages rise above the selected threshold
level, the reset signal remains low for the reset timeout period.
Four reset timeout options are available.
The ADM6305 monitors two supplies via two adjustable
resistor-programmable undervoltage reset inputs. Both RST
IN1 and RST IN2 have a reset threshold of either 0.4 V or
1.23 V depending on the particular model; that is, the RST IN1
and RST IN2 threshold of the ADM6305DxARJZ model is
1.23 V, while in the case of ADM6305DxARJZ1 model, it is
0.4 V. The V
CC
input of the ADM6305 is not a monitored input.
The ADM6306 has one adjustable undervoltage reset input,
RST IN, which features a choice of reset threshold, 0.4 V or
1.23 V (see the Ordering Guide for more information). The
ADM6306 incorporates a variety of internally pretrimmed V
CC
undervoltage threshold options for monitoring supply voltages
in increments between 2.5 V and 5 V. The ADM6306 also
includes a manual reset input.
The ADM6305
/ADM6306
RESET
output remains valid as long
as V
CC
exceeds 0.9 V.
The ADM6305/ADM6306 are available in a 5-lead SOT-23
package. These devices are specified over the temperature range
of −40°C to +125°C.
RESET
GENERATOR
RESET
0.4V/1.23V
RST IN1
V
CC
GND
0.4V/1.23V
RST IN2
ADM6305
09345-001
RESET
GENERATOR
GLITCH
REJECTION
RESET
1.23V
GND
0.4V/1.23V
RST IN
MR
ADM6306
V
CC
V
CC
09345-002
Rev. B Document Feedback
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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.
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Tel: 781.329.4700 ©2010–2014 Analog Devices, Inc. All rights reserved.
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