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ADM1025ARQZ Arkusz danych(PDF) 1 Page - ON Semiconductor |
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ADM1025ARQZ Arkusz danych(HTML) 1 Page - ON Semiconductor |
1 / 21 page Low Cost PC Hardware Monitor ASIC Preliminary Technical Data ADM1025/ADM1025A ©2008 SCILLC. All rights reserved. Publication Order Number: February 2008 – Rev. P5 ADM1025/D FEATURES Up to 8 measurement channels 5 inputs to measure supply voltages VCC monitored internally External temperature measurement with remote diode On-chip temperature sensor 5 digital inputs for VID bits Integrated 100 kΩ pull-ups on VID pins (ADM1025 only) LDCM support I2C® compatible system management bus (SMBus) Programmable RST output pin Programmable INT output pin Configurable offset for internal/external channel Shutdown mode to minimize power consumption Limit comparison of all monitored values APPLICATIONS Network servers and personal computers Microprocessor-based office equipment Test equipment and measuring instruments PRODUCT DESCRIPTION The ADM1025/ADM1025A1 is a complete system hardware monitor for microprocessor-based systems, providing measure- ment and limit comparison of various system parameters. Five voltage measurement inputs are provided for monitoring 2.5 V, 3.3 V, 5 V, and 12 V power supplies and the processor core voltage. The ADM1025/ADM1025A can monitor a sixth power supply voltage by measuring its own VCC. One input (two pins) is dedicated to a remote temperature-sensing diode, and an on- chip temperature sensor allows ambient temperature to be monitored. The ADM1025A has open-drain VID inputs while the ADM1025 has on-chip 100 kΩ pull-ups on the VID inputs. Measured values and in/out of limit status can be read out via an I2C compatible serial System Management Bus. The device can be controlled and configured over the same serial bus. The device also has a programmable INT output to indicate undervoltage, overvoltage, and overtemperature conditions. The ADM1025/ADM1025A’s 3.0 V to 5.5 V supply voltage range, low supply current, and I2C compatible interface make it ideal for a wide range of applications. These include hardware monitoring and protection applications in personal computers, electronic test equipment, and office electronics. FUNCTIONAL BLOCK DIAGRAM Figure 1. 1 Patent Pending. Purchase of licensed I2C components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I 2C Patent Rights to use these components in an I2C system, provided that the system conforms to the I2C Standard Specification as defined by Philips. |
Podobny numer części - ADM1025ARQZ |
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