{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"L6203","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"L6203","canonicalUrl":"https://icboms.com/stmicroelectronics/L6203","factsUrl":"https://icboms.com/api/mcp/products/L6203","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics L6203, IC HALF BRIDGE DRV 4A 11MULTWATT, BCDMOS technology, 300mOhm Rds(on) typical, 12V~48V supply/load, 4A per channel, Multiwatt-11 through-hole package, -40°C to 150°C junction temperature.","salesMarkdown":"## Half-bridge driver for DC motor control The L6203: Monolithic half-bridge driver in the Multiwatt-11 through-hole package, designed to drive inductive loads such as DC motors and general-purpose actuators. It integrates two half-bridge outputs, each rated for 4A continuous, with a bootstrap circuit for high-side gate drive. ## What the ratings mean for your motor drive BOM The 4A per-channel continuous current rating defines the motor size you can drive — a 4A DC motor at 48V gives roughly 192W mechanical output before derating. The 300mOhm typical on-resistance sets conduction loss at 4A to about 4.8W per channel, which the Multiwatt-11 package with its metal tab must sink; a proper heatsink is mandatory for continuous operation. The 12V to 48V supply range matches common industrial and automotive bus voltages (24V, 36V, 48V), and the bootstrap circuit eliminates the need for a separate floating supply for the high-side gate drive. The -40°C to 150°C junction temperature range covers under-hood automotive and factory-floor environments. ## Lifecycle and compliance It is ROHS3 compliant, so no restricted substances above the threshold limits — no exemptions to manage for EU or global markets. The through-hole Multiwatt-11 package is a legacy form factor, but ST continues to support it for industrial and automotive motor drive designs. ## Sourcing and availability Active part available through authorized distribution and independent channels. No last-time-buy risk.","metaTitle":"STMicroelectronics L6203 Half-Bridge Driver, 4A, 48V","metaDescription":"ST L6203 half-bridge driver: 4A per channel, 12V-48V supply, 300mΩ Rds(on), BCDMOS, bootstrap circuit, overtemperature protection, -40°C to 150°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tube","Features":"Bootstrap Circuit","Interface":"Logic","Load Type":"Inductive","Technology":"BCDMOS","Applications":"DC Motors, General Purpose","Rds On (Typ)":"300mOhm","Mounting Type":"Through Hole","Package / Case":"Multiwatt-11 (Vertical, Bent and Staggered Leads)","Voltage - Load":"12V ~ 48V","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature","Voltage - Supply":"12V ~ 48V","Output Configuration":"Half Bridge (2)","Operating Temperature":"-40°C ~ 150°C (TJ)","Supplier Device Package":"11-Multiwatt","Current - Output / Channel":"4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.17","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$10.17000","currency":"USD"},{"qty":10,"price":"$9.18600","currency":"USD"},{"qty":25,"price":"$8.75880","currency":"USD"},{"qty":100,"price":"$7.60510","currency":"USD"},{"qty":250,"price":"$7.26324","currency":"USD"},{"qty":500,"price":"$6.62238","currency":"USD"},{"qty":1000,"price":"$5.76788","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6cb41a16d96cf50dcbf1b16b7be069d1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the L6203 used for?","answer":"The L6203 is a half-bridge driver for inductive loads, specifically DC motors and general-purpose actuator control. Its two half-bridge outputs can form an H-bridge for bidirectional motor drive or drive two independent loads."},{"question":"How does the L6203 compare to the L6204?","answer":"The L6204 is a higher-current variant in the same family, typically rated for 5A per channel versus the L6203's 4A. Both share the same Multiwatt-11 package and 12V-48V supply range, so the L6204 is a drop-in upgrade for applications needing the extra current margin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/L6203","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/L6203 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}}