component
LM3402MM
Public Made by Adomby adom
Texas Instruments LED Drivers, VSSOP-8-0.65mm. Pinout cross-checked by two models against the datasheet, 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
markdownLM3402MM
Texas Instruments · LED Drivers · VSSOP-8-0.65mm
LM3402MM from Texas Instruments, in a VSSOP-8-0.65mm. 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 | SW | output | Switch pin. Connect this pin to the output inductor and Schottky diode. |
| 2 | BOOT | output | MOSFET drive bootstrap pin. Connect a 10-nF ceramic capacitor from this pin to SW. |
| 3 | DIM | input | Input for PWM dimming. Connect a logic-level PWM signal to this pin to enable and disable the power MOSFET and reduce the average light output of the LED array. |
| 4 | GND | power_in | Ground pin. Connect this pin to system ground. |
| 5 | CS | input | Current sense feedback pin. Set the current through the LED array by connecting a resistor from this pin to ground. |
| 6 | RON | input | ON-time control pin. A resistor connected from this pin to VIN sets the regulator controlled ON-time. |
| 7 | VCC | power_out | Output of the internal 7-V linear regulator. Bypass this pin to ground with a minimum 0.1-µF ceramic capacitor with X5R or X7R dielectric. |
| 8 | VIN | power_in | Input voltage pin. Nominal operating input range for this pin is 6 V to 42 V (LM3402) or 6 V to 75 V (LM3402HV). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8-0.65mm |
| Category | LED Drivers |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM3402MM - Footprint:
Package_SO:VSSOP-8_2.3x2mm_P0.5mm - 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)
- 3D model files:
lm3402mm-etched.step/lm3402mm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm3402mm.step/lm3402mm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (43 pp, sha256
8c6e2cc4aaa8c98a, retrieved 2026-10-01, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(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).