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Product Detailed Parameters
- Description：IC OR CTRLR N+1 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：N+1 ORing Controller
- FET Type：N-Channel
- Ratio - Input:Output：N:1
- Internal Switch(s)：No
- Delay Time - ON：-
- Delay Time - OFF：120 ns
- Current - Output (Max)：-
- Current - Supply：400 µA
- Voltage - Supply：36V ~ 100V
- Applications：Redundant Power Supplies
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The LM5051MAE/NOPB is a single-channel hot-swap voltage controller designed for low-side OR-ing applications. It operates within a supply voltage range of 36 V to 100 V and supports up to 1 A current limit. The device features a low quiescent current of 690 uA and functions reliably across an extended temperature range from -40°C to +125°C. Packaged in an SOIC-8 surface-mount format, it provides controlled power sequencing and protection for downstream circuits.
Feature Summary
- Provides integrated control for low-side OR-ing FET configurations
- Enables precise current limiting with a maximum capacity of 1 A
- Supports operation across wide industrial temperature extremes
Applications
- Low-side OR-ing power distribution networks
- Hot-swap circuit protection for backplane systems
- Controlled power sequencing in industrial equipment
Procurement Notes
Verify the specific suffix NOPB indicates lead-free compliance and RoHS adherence as per Texas Instruments documentation. Confirm the SOIC-8 package dimensions match your PCB footprint requirements. Ensure the 36V minimum operating voltage aligns with your system's rail specifications before procurement.
Selection Notes
Select this component when designing low-side OR-ing architectures requiring robust fault protection. The 100V maximum rating accommodates transient voltages common in automotive and industrial environments. Consider the 690 uA quiescent current for efficiency-sensitive designs where standby power consumption is critical.
Part Context
This part belongs to the LM5051 series of hot-swap controllers manufactured by Texas Instruments. It falls under the PMIC category specifically for power management ICs. The device is distinct from high-side controllers like the LM5050, focusing instead on low-side switching applications.
Replacement Considerations
Consult official substitution guides for compatible alternatives within the same product family. Verify pinout compatibility and electrical parameter overlaps before replacing existing components in established designs.
