{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM5109BSD/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM5109BSD-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM5109BSD-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM5109BSD%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM5109BSD/NOPB, half-bridge N-Channel MOSFET gate driver, 2 independent drivers, 8V-14V supply, 108V max bootstrap, 1A peak source/sink, 15ns rise/fall, -40°C to 125°C, 8-WSON exposed pad.","salesMarkdown":"## Half-bridge driver for N-channel MOSFETs The Texas Instruments LM5109BSD/NOPB is a half-bridge gate driver for two N-channel MOSFETs. It delivers 1A peak source and sink current with 15ns rise and fall time. The bootstrap supply handles up to 108 V on the high side. Supply range is 8 V to 14 V, and the part operates across -40°C to 125°C junction temperature. ## Bootstrap voltage and external diode The high-side driver uses a bootstrap technique requiring an external diode and capacitor between the VDD and HB pins. The maximum bootstrap voltage is 108 V. ## Logic input compatibility Logic input thresholds are 0.8 V for VIL and 2.2 V for VIH. The inputs are non-inverting and independent per channel. ## No internal deadtime The LM5109BSD/NOPB does not include internal deadtime. The two driver channels are independent, so shoot-through prevention relies on external deadtime inserted in the PWM signals. For motor drive or synchronous buck applications, the controller or MCU must ensure complementary switching with a deadtime interval appropriate for the MOSFET gate charge and load current. ## Package and mounting The device is housed in an 8-WSON (4x4 mm) exposed pad package. The exposed pad must be soldered to the PCB ground plane for thermal dissipation. Available in Tape & Reel or Cut Tape options. ## Sourcing and lifecycle No last-time-buy or end-of-life notice applies. ROHS3 compliant.","metaTitle":"LM5109BSD/NOPB Half-Bridge Gate Driver, 1A Peak","metaDescription":"TI LM5109BSD/NOPB half-bridge N-Channel MOSFET driver in 8-WSON package. 1A peak output, 108V bootstrap, -40°C to 125°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Gate Type":"N-Channel MOSFET","Input Type":"Non-Inverting","Channel Type":"Independent","Mounting Type":"Surface Mount","Package / Case":"8-WDFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"8V ~ 14V","Number of Drivers":"2","Driven Configuration":"Half-Bridge","Operating Temperature":"-40°C ~ 125°C (TJ)","Rise / Fall Time (Typ)":"15ns, 15ns","Supplier Device Package":"8-WSON (4x4)","Logic Voltage - VIL, VIH":"0.8V, 2.2V","High Side Voltage - Max (Bootstrap)":"108 V","Current - Peak Output (Source, Sink)":"1A, 1A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.68","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.68000","currency":"USD"},{"qty":10,"price":"$1.50100","currency":"USD"},{"qty":25,"price":"$1.42480","currency":"USD"},{"qty":100,"price":"$1.17020","currency":"USD"},{"qty":250,"price":"$1.09392","currency":"USD"},{"qty":500,"price":"$0.96672","currency":"USD"},{"qty":1000,"price":"$0.76320","currency":"USD"},{"qty":2000,"price":"$0.72000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2ec0508768c8ecfd1e1ffa8c4266d433.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does LM5109BSD/NOPB require an external bootstrap diode?","answer":"Yes, an external bootstrap diode and capacitor are required between VDD and HB. No internal diode is integrated."},{"question":"Is LM5109BSD/NOPB compatible with 5V logic inputs?","answer":"Yes. The VIH threshold is 2.2 V, so 5 V logic levels drive the inputs reliably. VIL is 0.8 V."},{"question":"Does LM5109BSD/NOPB have internal deadtime?","answer":"No. The two channels are independent with no internal deadtime. External deadtime must be provided by the controller or MCU."},{"question":"What are the alternatives for LM5109BSD/NOPB?","answer":"A close functional alternative is the LM5106MM/NOPB, which is also a half-bridge N-channel MOSFET driver but with synchronous channel type and 1.2 A peak output current. Verify pin compatibility and bootstrap requirements for your layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM5109BSD-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM5109BSD-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}