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LM27222MX/NOPB
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Product Detailed Parameters
- Description：LM27222 HIGH-SPEED 4.5A SYNCHRON
- Series：-
- Mfr：National Semiconductor
- Package：Bulk
- Driven Configuration：Half-Bridge
- Channel Type：Synchronous
- Number of Drivers：2
- Gate Type：MOSFET (N-Channel)
- Voltage - Supply：4V ~ 6.85V
- Logic Voltage - VIL, VIH：-
- Current - Peak Output (Source, Sink)：3A, 4.5A
- Input Type：Non-Inverting
- Rise / Fall Time (Typ)：17ns, 12ns
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
- High Side Voltage - Max (Bootstrap)：33 V
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Overview
The LM27222MX/NOPB is a dual-channel MOSFET driver manufactured by Texas Instruments, formerly National Semiconductor. Designed for high-speed switching applications, this component integrates two independent drivers in an 8-pin MSOP package. It provides robust gate drive capabilities suitable for powering external N-channel power MOSFETs. The device operates within a specified voltage range and supports frequencies up to 10 MHz, ensuring efficient signal transmission and minimal propagation delay for synchronous rectification or half-bridge configurations.
Feature Summary
- Dual-channel architecture providing independent control for two external MOSFETs
- High-speed switching capability supporting operation up to 10 MHz
- Compact surface-mount packaging designed for space-constrained PCB layouts
Applications
- Synchronous buck converter circuits
- Half-bridge and full-bridge motor drives
- DC-DC converter gate driving stages
Procurement Notes
Verify the manufacturer designation on the datasheet, as Texas Instruments acquired National Semiconductor. Confirm the specific suffix 'NOPB' indicates lead-free and RoHS compliance status according to current TI documentation. Ensure the package type matches the required board footprint, typically MSOP-8 for this part number.
Selection Notes
Select this component when dual isolated or non-isolated gate drive signals are required for synchronous power stages. Consider the operating frequency requirements against the 10 MHz limit. Evaluate the package thermal performance and pinout compatibility with existing PCB designs compared to single-channel alternatives.
Part Context
This part belongs to the LM2722x family of dual MOSFET drivers. While originally released under the National Semiconductor brand, production and documentation are now managed by Texas Instruments following their acquisition. The device serves as a bridge between logic-level control signals and high-current MOSFET gates.
Replacement Considerations
Check for LM27222MX/NOPB equivalents from other manufacturers offering dual MOSFET drivers. Verify pin-to-pin compatibility and electrical specifications such as peak output current and propagation delay before substitution.
