component
NCR401UX
Public Made by Adomby adom
Nexperia LED Drivers, TSOP-6. 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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Contents
README
markdownNCR401UX
Nexperia · LED Drivers · TSOP-6
NCR401UX from Nexperia, in a TSOP-6. 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 | GND | power_in | Ground pin for the LED driver (Table 2, page 3); the datasheet gives no further electrical limit for this pin. |
| 2 | IOUT | output | Stabilized output current pin that drives the LED; 10 mA typical, adjustable up to 65 mA when an external resistor REXT is used. |
| 3 | IOUT | output | Stabilized output current pin that drives the LED, electrically common with pins 2 and 5; 10 mA typical, adjustable up to 65 mA with an external resistor. |
| 4 | VS | power_in | Supply voltage pin; the absolute maximum supply voltage is 40 V (Table 5, page 4) and the minimum usable overhead is VS - Vout of 1.4 V (Table 7, page 6). |
| 5 | IOUT | output | Stabilized output current pin that drives the LED, electrically common with pins 2 and 3; 10 mA typical, adjustable up to 65 mA with an external resistor. |
| 6 | REXT | passive | External resistor pin used to set the output current between 10 mA and 65 mA (Rext selection guided by Figure 8, page 8). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | TSOP-6 |
| Category | LED Drivers |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Stabilized output current | Iout | 8.5 | 10 | 11.5 | mA | VS = 10 V; Vout = 8.6 V | 7 |
| Ground current | IGND | 340 | 420 | 500 | µA | VS = 10 V; Iout = 0 A | 7 |
| Internal resistance | Rint | 75 | 88 | 101 | Ω | IRint = 10 mA | 7 |
| Voltage drop at internal resistance Rint | VRint | 0.88 | V | Iout = 10 mA | 7 | ||
| Lowest sufficient supply voltage overhead VS − Vout | VSmin | 1.4 | V | Iout > 8.5 mA | 7 | ||
| Stabilized output current change over ambient temperature | Iout / (Iout·ΔTamb) | 0.3 | %/K | VS = 10 V; Vout = 8.6 V | 7 | ||
| Stabilized output current change over supply voltage | Iout / (Iout·ΔVS) | 0.8 | %/V | VS = 10 V; VS − Vout = 1.4 V; Tamb = 25 °C | 7 | ||
| Stabilized output current if external resistor is used | Iout | 65 | mA | if external resistor is used | 4 | ||
| Supply voltage | VS | 40 | V | 4 | |||
| Output voltage | Vout | 38 | V | VS = 40 V | 4 | ||
| Reverse voltage | VR | 0.5 | V | between all terminals | 4 | ||
| Total power dissipation | Ptot | 475 | mW | Tamb ≤ 25 °C; FR4 PCB, single-sided copper, standard footprint | 4 | ||
| Total power dissipation | Ptot | 650 | mW | Tamb ≤ 25 °C; FR4 PCB, single-sided copper, mounting pad for output 1 cm2 | 4 | ||
| Total power dissipation | Ptot | 750 | mW | Tamb ≤ 25 °C; FR4 PCB, 4-layer copper, standard footprint | 4 | ||
| Total power dissipation | Ptot | 1100 | mW | Tamb ≤ 25 °C; FR4 PCB, 4-layer copper, mounting pad for output 1 cm2 | 4 | ||
| Junction temperature | Tj | 150 | °C | 4 | |||
| Ambient temperature | Tamb | -55 | 150 | °C | 4 | ||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| Thermal resistance from junction to ambient | Rth(j-a) | 265 | K/W | in free air; FR4 PCB, single-sided copper, standard footprint | 5 | ||
| Thermal resistance from junction to ambient | Rth(j-a) | 190 | K/W | in free air; FR4 PCB, single-sided copper, mounting pad for output 1 cm2 | 5 | ||
| Thermal resistance from junction to ambient | Rth(j-a) | 165 | K/W | in free air; FR4 PCB, 4-layer copper, standard footprint | 5 | ||
| Thermal resistance from junction to ambient | Rth(j-a) | 115 | K/W | in free air; FR4 PCB, 4-layer copper, mounting pad for output 1 cm2 | 5 | ||
| Thermal resistance from junction to solder point | Rth(j-sp) | 50 | K/W | in free air | 5 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | tin | [1] Between all terminals. [2] Device mounted on an FR4 Printed-Circuit Board (PCB); single-sided copper; tin-plated and standard | 4 |
CAD (KiCad official)
- Symbol:
NCR401UX - Footprint:
Package_SO:TSOP-6_1.65x3.05mm_P0.95mm - 3D model: TSOP-6 (KiCad packages3D, STEP)
- 3D model files:
ncr401ux-etched.step/ncr401ux-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ncr401ux.step/ncr401ux.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (16 pp, sha256
74345650e0edcf9f, retrieved 2026-10-20, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(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).