SG2548N (#43834) |
Product Status
In Production |
Overview
| The SG1548 is an integrated circuit capable of monitoring up to four positive DC supply voltages simultaneously for overvoltage and undervoltage fault conditions. An on-chip inverting op amp also allows monitoring one negative DC voltage. The fault tolerance window is accurately programmable from ±5% to ±40% using a simple divider network on the 2.5V reference. A single external capacitor sets the fault indication delay, eliminating false outputs due to switching noise, logic transition current spikes, and short-term AC line interruptions. An additional comparator referenced to 2.5V allows the AC line to be monitored for undervoltage conditions or for generation of a line clock. The comparator can also be used for programmable undervoltage lockout in a switching power supply. Uncommitted collector and emitter outputs permit both inverting and non-inverting operation. External availability of the precision 2.5V reference and open-collector logic outputs permit expansion to monitor additional voltage using available open-collector quad comparators. Key Features
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ROHS| Package Carrier: | NULL |
Resources
| Datasheets | |
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 SG1548 Datasheet |
| App Notes | |
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| SG1548: A conceptually new quad power fault monitor circuit |
| Reliability | |
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| Quality & Reliability Report - Aliso Viejo, CA, USA - Garden Grove, CA, USA - San Jose, CA, USA |
This part can be found in the following product categories:
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Power Management
Supervisory Circuits and Voltage References Quad or More Supply Monitors -
High-Reliability Military-grade Devices High Reliability Supervisory Circuits and Voltage References High-Reliability Quad or More Supply Monitors
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Military-grade Devices High Reliability Supervisory Circuits and Voltage References High-Reliability Quad or More Supply Monitors SG1548, SG2548, SG3548
