component
LM3414HVMRX
Public Made by Adomby adom
Texas Instruments LED Drivers, SOIC-8-EP. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM3414HVMRX
Texas Instruments · LED Drivers · SOIC-8-EP
LM3414HVMRX from Texas Instruments, in a SOIC-8-EP. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VCC | power_out | Internal regulator output pin. Provides ~5.4 V self-bias for internal gate drive and control circuits. Must be bypassed to ground with a ceramic capacitor of at least 1 µF. External loading is limited by device thermal considerations. |
| 2 | PGND | power_in | Power ground pin. Reference point for all stated voltages and return for the power stage. Must be externally connected to the exposed pad (EP) and to analog GND. |
| 3 | IADJ | input | Average output current adjustment pin. Connect resistor R_IADJ from this pin to ground to program the average LED current (nominal V_IADJ ≈ 1.255 V; ~1 A with R_IADJ = 3.125 kΩ). Also supports analog dimming. |
| 4 | GND | power_in | Analog ground pin. Analog ground connection for internal control circuitry. Must be connected to PGND external to the package. |
| 5 | FS | input | Switching frequency setting pin. Connect resistor R_FS from this pin to ground to program switching frequency in the 250 kHz to 1000 kHz range (≈500 kHz with R_FS = 40 kΩ). |
| 6 | DIM | input | PWM dimming control pin. Apply a logic-level PWM signal to control LED string brightness. Threshold ≈ 1.0-1.2 V with ~100 mV hysteresis; absolute max 6 V. |
| 7 | LX | output | Drain of internal low-side N-channel MOSFET switch. Connect to the output inductor and to the anode of the Schottky freewheel diode. R_DS(on) ≈ 1.8 Ω; withstands V_IN (up to 65 V for HV). |
| 8 | VIN | power_in | Input voltage pin. Operating range 4.5 V to 65 V for LM3414HV (4.5 V to 42 V for LM3414). Bypass with a local input capacitor. |
| EP | EP | power_in | Exposed thermal pad (power ground). Used to dissipate heat from the package. Must be electrically connected to PGND external to the package. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8-EP |
| Category | LED-drv |
| Pins | 9 |
Ordering variants
Same part, different packaging or reel option.
LM3414HVMRXLM3414HVMRXSDLM3414HVMRXSDX
CAD (KiCad official)
- Symbol:
LM3414HVMRX - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: SOIC-8-EP (KiCad packages3D, STEP)
- 3D model files:
lm3414hvmrx-etched.step/lm3414hvmrx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm3414hvmrx.step/lm3414hvmrx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (32 pp, sha256
77555692dbd66ef9, retrieved 2026-08-17, tier: manufacturer) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).