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AD5100

更新时间： 2024-10-14 04:04:07
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亚德诺 - ADI 监控
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32页 480K
描述
System-Management IC with Programmable Quad Voltage Monitoring and Supervisory Functions

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AD5100 数据手册

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System-Management IC with Programmable Quad  
Voltage Monitoring and Supervisory Functions  
Preliminary Technical Data  
AD5100  
APPLICATIONS  
FEATURES  
•
•
•
Automotive Systems  
Network Equipment  
• Two Device-Enabling Outputs with Six Programmable  
Monitoring Inputs (Table 1)  
Computers, Controllers, and Embedded Systems  
o Two 30V Monitoring Inputs with Shutdown Control of  
External Devices:  
ƒProgrammable Over-voltage, Under-voltage,  
Turn-on, Turn-off Thresholds, and Shutdown  
timings  
GENERAL DESCRIPTION  
The AD5100 is a programmable system-management IC that  
combines 4-channel of voltage monitoring and a watchdog  
supervision that can be used to shutdown external supplies,  
reset processors, or disable any other system electronics when  
the systems malfunction. The AD5100 can also be used to  
protect system under faulty condition of improper devices  
power up sequencing. The AD5100 can monitor two 30V inputs  
with shutdown and reset controls, one 2.5V-5.0V and one 0.9V-  
3.3V monitoring inputs with reset control, a robust watchdog  
reset controller. Most monitoring input thresholds and timing  
settings can be programmed on the fly or permanently set in  
the factory with the OTP feature.  
ƒShutdown Warning with Fault Detection  
o Two 5V Monitoring Inputs with Reset Control of External  
Devices:  
ƒProgrammable Reset Thresholds and Hold Time  
o Two Supervisory Functions:  
ƒWatchdog Reset Controller with Programmable  
Timeout and Selectable Floating Input  
ƒManual Reset Control for External Devices  
•
Digital Interface and Programmability:  
®
o
o
o
o
o
I2C Compatible Interface  
OTP1 for Permanent Threshold and Timing Settings  
OTP Overwritten Capable for Dynamic Adjustments  
Power Up by Edge Triggered Signal  
Power Down by I2C Software  
The AD5100 is versatile for system-monitoring applications  
where critical μP, DSP, and embedded systems operate under  
harsh conditions such as automotive, industrial, or  
communications network environments.  
•
•
Operating Range:  
o
o
o
Supply Voltage 6.0V to 30V  
Temp Range -40oC to +125oC  
Low Shutdown Current: 10μA  
High-Voltage-Input Anti-migration Shielding Pinouts  
The AD5100 is available in compact QSOP-16 and can operate  
in an extended automotive temperature range from -40oC to  
+125oC.  
1.One Time Programmable EPROM – Unlimited Adjustment Before OTP Execution.  
2 With Programmable Threshold and Programmable Delay.  
Table 1. AD5100 General Inputs and Output Information  
Input  
Monitoring  
Range2  
Shutdown  
Control  
Reset  
Cont  
rol  
Fault  
Dete  
ctio  
n
√
√
√
√
√
√
V1MON  
V2MON  
V3MON  
V4MON  
WDI  
6 – 30 V  
3 – 30 V  
2.5 – 5.0 V  
0.9 – 3.3 V  
0 – 5 V  
√
√
√
√
√
√
√
0 – 5 V  
MR  
Rev. PrJ  
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  
©2006 Analog Devices, Inc. All rights reserved.  
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