LM5069MM-2/NOPB/BKN Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The LM5069MM-2/NOPB/BKN is a positive high-voltage hot swap and inrush current controller with integrated power limiting for safe board insertion. It controls an external N-channel MOSFET to limit inrush current and protect downstream circuits during hot-plug events up to 80V. Packaged in a compact MSOP-8 form factor, it suits telecom and industrial power distribution systems.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- LM5069MM-2/NOPB/BKN Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM5069MM-2/NOPB/BKN?
- High-voltage hot swap control supporting up to 80V bus voltages
- Integrated inrush current limiting via external N-channel MOSFET gate drive
- Power limiting with programmable overcurrent and overpower thresholds
- PGOOD output flag for downstream power sequencing and fault monitoring
- Circuit breaker mode with auto-retry or latch-off on persistent faults
- MSOP-8 package minimizing PCB footprint in 1U rack equipment
What is LM5069MM-2/NOPB/BKN used for?
The LM5069MM-2 is designed for hot swap applications in telecom line cards, server blade boards, and industrial backplane systems where cards must be inserted and removed without powering down the chassis. Its power limiting feature prevents damage to PCB traces and capacitors during the inrush event on bus voltages up to 80V, protecting both the card and the backplane. The device is also used in redundant power distribution architectures where graceful fault isolation and automatic recovery are required.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the LM5069MM-2/NOPB/BKN datasheet?
LM5069MM-2/NOPB/BKN Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM5069MM-2/NOPB/BKN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What bus voltage range does the LM5069MM-2 support, and which telecom or industrial standards does it cover?
The LM5069MM-2 supports positive bus voltages up to 80V, covering the 48V telecom bus standard (nominal 48V, up to 72V under fault), 24V industrial bus, and high-voltage DC distribution rails used in data center power shelves. The 80V maximum rating provides adequate margin for transients on a 48V bus without requiring additional TVS clamping, simplifying the protection circuit design for -48V converted positive rail applications.
How does the LM5069MM-2 limit inrush current during board insertion, and how is the current threshold programmed?
The LM5069MM-2 controls the gate voltage of an external N-channel MOSFET to ramp the drain current slowly during hot insertion, limiting inrush to a level set by an external sense resistor and a TIMER capacitor. The overcurrent threshold is programmed by the sense resistor value (typically 5 mΩ to 50 mΩ), while the capacitor on the TIMER pin sets the allowed inrush duration. This approach allows the designer to tune the current limit from a few amperes up to tens of amperes depending on load capacitance.
What happens when the LM5069MM-2 detects a persistent overcurrent fault — does it latch off or retry automatically?
The LM5069MM-2 enters a circuit breaker mode on persistent overcurrent or overpower faults, turning off the external MOSFET to isolate the load. In the -2 variant configuration, the device performs auto-retry: it periodically re-enables the MOSFET after a timeout period set by the TIMER capacitor, cycling with an approximately 10:1 off-to-on ratio. If the fault has cleared, normal operation resumes; if not, the device returns to the off state, protecting the 80V bus from sustained overload damage.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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