Microchip SG1548L
Manufacturer No:
SG1548L
Manufacturer:
Microchip
Package:
Description:
DC:AC Quad Line Fault Monitor 2.5V Tolerance AC line Vin 4.5 to 40V-55 to +125
Quantity:
In Stock :8412
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Shipped from：HK Warehouse
Expected Shipping：Sun, May 31 - Mon, Jun 1, 2026
Lead Time：Inquire about availability
Date Code：Within 2 Years
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SG1548L Information
Microchip SG1548L technical specifications, attributes, parameters and parts with similar specifications to Microchip SG1548L.
- Type
- Parameter
- Driver Type
- Supervisor
- Min Operating Voltage (V)
- 999999
- Max Operating Voltage (V)
- 999999
- Nominal Reset Voltage Min
- 999999
- Nominal Reset Voltage Max
- 999999
- Watchdog Timer
- No
- Manual Reset
- No
- Power Fail
- No
- Min Operating Ambient Temperature (°C)
- 999999
- Max Operating Ambient Temperature (°C)
- 999999
- Type
- Parameter
Download datasheets and manufacturer documentation for Microchip SG1548L.
Data Sheets:
Application Notes:
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.
Microchip Ordering Part Standard Microcircuit Drawing (SMD)
SG1548J-DESC Cross Reference 5962-8987801EA
SG1548J-DESC Cross Reference 5962-8987801EX
- Monitors four DC voltages and the AC line
- Precision 2.5V ±1% low-drift reference
- Fault tolerance adjustable from ±5% to ±40%
- ±3% trip threshold tolerance over temperature
- Separate 10mA, 40V overvoltage, undervoltage and AC line fault outputs
- Fault delay programmable with a single capacitor
- 30mV comparator hysteresis to prevent oscillations
- On-chip inverting op amp for negative voltage
- Open-collector output logic or expandability
- Operation from 4.5V to 40V supply
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12.28 M
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