Part Details for LM139 by Texas Instruments
Overview of LM139 by Texas Instruments
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Price & Stock for LM139
| Part # | Distributor | Description | Stock | Price | Buy | |
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Bristol Electronics | 5 |
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RFQ |
Part Details for LM139
LM139 CAD Models
Resources and Additional Insights for LM139
Reference Designs related to LM139
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PMP7848 多路输出反激转换器 (-24V@.7A)
This is a flyback converter with an input voltage range of 10.8V-to-14.4Vin and three outputs: 80Vout @ 0.4A, -58Vout @ 0.7A, and -24Vout @ 0.7A
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High Eff 2Stage Univ Input Power Supply-Transition Mode PFC LLC Resonant Conv Reference Design
Low EMI: high efficiency: high power factor and reliable power supply are main focus of the PMP8911 design for telecom applications. Transient mode (TM) power factor correction (PFC) with UCC28051 and LLC series resonant converter (SRC) with UCC25600 are applied in PMP8911. Low EMI is expected with zero voltage switching on TM-PFC and LLC-SRC switches. An overall 92% efficiency is achieved at 100W full load. In addition: several protections are embedded into this design which includes input under-voltage protection: input over-voltage protection: output over-voltage protection: and output hic-cup over-power protection.
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20- to 40-VIN: 50-W Space-grade isolated flyback DC/DC over-current protection reference design
Spacecraft bus voltages vary from the well-established 28-V to more than the 100-V typically used in highpower commercial communications satellites: this reference design shows an example for a space-grade 50-W isolated intermediary bus converter: while implementing over-current protection (OCP) limit function. This design features INA901-SP radiation hardened current monitor: LM139AQML-SP quadcomparator: and UC1901-SP to create an isolated feedback flyback with current sensing and overcurrent flags – the UC1843A-SP current mode PWM controller is used to switch the low side MOSFET of the flyback converter and provide voltage and current to the output: the UC1901-SP senses the output voltage and completes the loop for the isolated feedback. The INA901-SP senses the input current which is provided to the LM139AQML-SP to create an overcurrent flag.