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LM5109BSDX
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Product Detailed Parameters
- Description：IC GATE DRVR HALF-BRIDGE 8WSON
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Driven Configuration：Half-Bridge
- Channel Type：Independent
- Number of Drivers：2
- Gate Type：MOSFET (N-Channel)
- Voltage - Supply：8V ~ 14V
- Logic Voltage - VIL, VIH：0.8V, 2.2V
- Current - Peak Output (Source, Sink)：1A, 1A
- Input Type：Non-Inverting
- Rise / Fall Time (Typ)：15ns, 15ns
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-WDFN Exposed Pad
- Supplier Device Package：8-WSON (4x4)
- Grade：-
- Qualification：-
- High Side Voltage - Max (Bootstrap)：108 V
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Overview
The LM5109BSDX is a high-voltage half-bridge gate driver manufactured by Texas Instruments. It features an 8-pin WSON package and supports surface-mount installation. The device provides independent high-side and low-side outputs with a peak output current of 1 A. It operates within a supply voltage range of 8 V to 14 V. Electrical performance includes rise and fall times of 15 ns. The component functions reliably across an operating temperature range from -40 °C to +125 °C.
Feature Summary
- Provides independent high-side and low-side drive capabilities for half-bridge configurations
- Delivers 1 A peak output current to control external power switches
- Supports operation at high voltages up to 100 V
Applications
- High-voltage motor control systems
- Industrial power conversion circuits
- Inverter bridge driver stages
Procurement Notes
Verify the specific suffix 'SX' against the manufacturer's official documentation to confirm tape-and-reel packaging specifications. Ensure the ordering part number matches the exact pinout and thermal pad requirements for your PCB layout. Confirm RoHS compliance status directly with the supplier as indicated in the datasheet.
Selection Notes
Select this component when a compact solution is required for driving high-side N-channel MOSFETs in high-voltage environments. The 1 A drive strength is suitable for medium-power applications. Consider the WSON-8 footprint constraints and thermal dissipation needs relative to the expected switching frequency and load conditions.
Part Context
This device belongs to the LM5109B family of high-voltage gate drivers. It shares functional similarities with other Texas Instruments half-bridge drivers but is distinguished by its specific output current rating and package type. It serves as a dedicated interface between logic-level control signals and high-voltage power stages.
Replacement Considerations
LM5109BMAX/NOPB: Offers identical electrical characteristics but utilizes an SOIC-8 package instead of WSON-8. Verify footprint compatibility before substitution.
