component
LM3409HVMY
Public Made by Adomby adom
Texas Instruments LED Drivers, MSOP-10-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownLM3409HVMY
Texas Instruments · LED Drivers · MSOP-10-EP
LM3409HVMY from Texas Instruments, in a MSOP-10-EP. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | UVLO | input | Input undervoltage lockout with 1.24 V turn-on threshold and 22 µA hysteresis current source; connect to resistor divider from VIN to GND. |
| 2 | IADJ | input | Analog LED current adjust accepting 0 to 1.24 V input or external resistor to GND to set peak current threshold voltage. |
| 3 | EN | input | Logic level enable and PWM dimming input requiring >1.74 V to enable, accepting PWM signal to dim, or <0.5 V for shutdown. |
| 4 | COFF | input | Off-time programming input; connect external resistor from output voltage and capacitor to GND for switching frequency control. |
| 5 | GND | power_in | Ground connection; connect to system ground with 4 to 6 vias from thermal pad to GND plane. |
| 6 | PGATE | output | Gate drive output with 2 Ω output resistance sourcing and sinking 50 mA; connect to external P-channel MOSFET gate. |
| 7 | CSN | input | Negative terminal input for high-side differential current sense; connect to negative side of sense resistor. |
| 8 | CSP | input | Positive terminal input for high-side differential current sense; connect to positive side of sense resistor and to VIN. |
| 9 | VCC | power_out | VIN-referenced linear regulator output providing 5.5 to 6.5 V with 30 to 45 mA current limit; bypass with ≥1 µF ceramic capacitor to VIN. |
| 10 | VIN | power_in | Input voltage with 6 to 75 V operating range for LM3409HV and absolute maximum 76 V; 6 to 42 V for standard LM3409. |
| 11 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | MSOP-10-EP |
| Category | LED Drivers |
| Pins | 11 |
CAD (KiCad official)
- Symbol:
LM3409HVMY - Footprint:
Package_SO:MSOP-10-1EP_3x3mm_P0.5mm_EP1.68x1.88mm - 3D model: MSOP-10-EP (KiCad packages3D, STEP)
- 3D model files:
lm3409hvmy-etched.step/lm3409hvmy-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm3409hvmy.step/lm3409hvmy.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (47 pp, sha256
7745578a43302ee7, retrieved 2026-09-24, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).