Microchip SG1543J
Manufacturer No:
SG1543J
Manufacturer:
Microchip
Package:
CDIP
Description:
Precision Output Supervisory Circuit Voltage to 1% Accuracy -55°C to 125°C, 5962-8774001EA
Quantity:
In Stock :5730
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Shipped from：HK Warehouse
Expected Shipping：Tue, Jun 2 - Wed, Jun 3, 2026
Lead Time：Inquire about availability
Date Code：Within 2 Years
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SG1543J Information
Microchip SG1543J technical specifications, attributes, parameters and parts with similar specifications to Microchip SG1543J.
- 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 SG1543J.
Data Sheets:
This monolithic integrated circuit contains all the functions necessary to monitor and control the output of a sophisticated power supply system. Over-voltage (O.V.) sensing with provision to trigger an external SCR “crowbar” shutdown; an under-voltage (U.V.) circuit which can be used to monitor either the output or to sample the input line voltage; and a third op amp/comparator usable for current sensing (C.L.) are all included in this IC, together with an independent, accurate reference generator. Both over and under-voltage sensing circuits can be externally programmed for minimum time duration of fault before triggering. All functions contain open collector outputs which can be used independently or wire-ORed together; and although the SCR trigger is directly connected only to the over-voltage sensing circuit, it may be optionally activated by any of the other outputs, or from an external signal. The O.V. circuit also includes an optional latch and external reset capability. The current sense circuit may be used with external compensation as a linear amplifier or as a high gain comparator. Although nominally set for zero input offset, a fixed threshold may be added with an external resistor. Instead of current limiting, this circuit may also be used as an additional voltage monitor. The reference generator circuit is internally trimmed to eliminate the need for external potentiometers and the entire circuit may be powered directly from either the output being monitored or from a separate bias voltage.
Microchip Ordering Part Standard Microcircuit Drawing (SMD)
SG1543J-DESC Cross Reference 5962-8774001EA
SG1543J-DESC Cross Reference 5962-8774001EX
- Over-Voltage, Under-Voltage, and Current Sensing Circuits all included.
- Reference Voltage Trimmed to 1% Accuracy.
- SCR "Crowbar" Drive of 300mA.
- Programmable Time Delays.
- Open-Collector Outputs and Remote Activation Capability.
- Total Standby Current less than 10mA
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12.28 M
Listed Part Number
3,000+
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In-stock SKU
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