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Product Detailed Parameters
- Description:0, HIGH-RELIABILITY ISOLATED SWI
- Series:-
- Mfr:Microchip Technology
- Package:Tape & Reel (TR)
- Output Type:Transistor Driver
- Function:Step-Down
- Output Configuration:Positive
- Topology:Buck
- Number of Outputs:1
- Output Phases:1
- Voltage - Supply (Vcc/Vdd):30V
- Frequency - Switching:100Hz ~ 500kHz
- Duty Cycle (Max):95%
- Synchronous Rectifier:No
- Clock Sync:No
- Serial Interfaces:-
- Control Features:-
- Operating Temperature:-25°C ~ 85°C (TA)
- Mounting Type:Surface Mount
- Package / Case:8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package:8-SOIC
- Grade:Military
- Qualification:MIL-STD-883
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Overview
The SG2843DM-TR is a high-reliability isolated switching regulator manufactured by Microchip Technology. It functions as a current-mode PWM controller designed for MIL-STD-883 applications. The device operates with a maximum switching frequency of 500kHz and supports an output current of 1A. It utilizes a bipolar process and is housed in an 8-pin PDSO package. The component is rated for an operating temperature range from -25°C to +85°C, with an operating supply current of 11mA.
Feature Summary
- High-reliability design compliant with MIL-STD-883 standards
- Current-mode PWM control architecture
- Isolated switching regulator functionality
Applications
- Military aerospace power systems
- High-reliability industrial electronics
- Spacecraft power management
Procurement Notes
Verify the specific suffix (D vs DM) against official Microchip documentation to ensure correct pinout and package configuration. Confirm that the TR suffix matches the required reel quantity of 2500 units. Request the latest Product Change Notification (PCN) documents to verify manufacturing site and material compliance status prior to ordering.
Selection Notes
Select this component for applications requiring certified high-reliability performance under strict environmental conditions. Ensure the system design accommodates the specified 500kHz switching frequency and 1A output current limits. Verify that the bipolar process technology aligns with the thermal and electrical requirements of the target circuit topology.
Part Context
This part belongs to the SG2843 series of switching regulators, which are engineered for defense and aerospace sectors. The SG2843DM-TR variant specifically denotes the dual-marketed or specific package version within the Microchip portfolio, distinct from the standard SG2843D model.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult Microchip Technology directly for qualified replacement options or cross-reference data.
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