Overview
The OM1321 series datasheet details a range of three-terminal, precision adjustable positive voltage regulators that conform to DESC Drawing 7703402. These regulators, compatible with the LM11ZHV standard, are designed for use in military and high-reliability applications, offered in hermetic style packages. Their provision of built-in protective features such as thermal overload protection, short circuit current limiting, and safe area control guarantees their robustness in various challenging environments.
Features
Key features of the OM1321 series include compliance with industry-standard LMT1ZHV and the DESC Standardized Military Drawing Number 7703402. Protective features are inherent in the design, ensuring durability and reliable performance. These devices can deliver up to 1.5 amps of output current with proper heat sinking, though certain models (such as those in the LCC-20 package) are limited to 1A.
Ratings and Operating Conditions
The absolute maximum ratings specify a thermal dissipation range from 1.1W to 20W across different cases, an input-output voltage differential of 40V, an operating junction temperature ranging from -55°C to 150°C, and a storage temperature that spans -65°C to 150°C. Soldering lead temperature should not exceed 300°C for 10 seconds.
Electrical characteristics for the series are detailed over a -55°C to 125°C temperature range and include parameters such as reference voltage, line regulation, load regulation, thermal regulation, ripple rejection, adjustment pin current, adjustment pin current change, minimum load current, and current limit. Notably, these parametric data points vary based on conditions such as output voltage, ambient temperature, and input voltage.
Part Number Designators
The datasheet lists a part number designator section that ties together the standardized military drawing number, the Omnirel part number, and various package designations that include SMD-3, TO-257 (Isolated), TO-257 (non-Isolated), TO-3, SMD-1, and LCC-20.
Package Options
The following package styles are available for the OM1321 series:
– OM1321SMM (SMD-3)
– OM1321STM (TO-257 Isolated)
– OM1321NKM (TO-257 Non-Isolated)
– OM1321NTM (TO-257 Non-Isolated)
– OM1321NMM (TO-3)
– OM1321NZM (LCC-20)
Conclusion
Succinctly, the OM1321 series voltage regulators offer a blend of adaptability, protective features, and compliance with stringent military standards, making them suitable for high-reliability applications where a regulated and adjustable output voltage is critical.
References:
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