component
TP8556N
Public Made by Adomby adom
TPOWER LED Drivers, SOT-23-6L. 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
markdownTP8556N
TPOWER · LED Drivers · SOT-23-6L
TP8556N from TPOWER, in a SOT-23-6L. 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 | DRV | output | Gate drive output for the external power MOSFET; the datasheet rates the driver at 550 mA maximum pull-up and 350 mA maximum pull-down current. |
| 2 | GND | power_in | Chip ground reference; the CS sense resistor is connected between CS and this pin. |
| 3 | MODE | input | High/low brightness mode select: high selects 50% output and low selects 100%, with a 100nF filter capacitor to GND required in brightness-switching applications; the pin must not float and must be tied to VDD or GND when unused, with VMODE_H of 2.0 V minimum, VMODE_L of 0.5 V maximum, and a -0.3 to +7 V absolute range. |
| 4 | VDD | power_in | Supply input with a built-in 5.6 V zener clamp; the datasheet gives an absolute limit of -0.3 to +6 V, an undervoltage lockout of 3.1 V rising and 2.7 V falling, and a supply current of 405 µA typical at 5 V, and recommends a series supply resistor when the input exceeds 5.6 V. |
| 5 | DIM | input | Analog dimming input that sets LED current over 0.3 to 1.5 V, with dimming off at 0.15 V and on at 0.2 V, and an internal 18 µA pull-up current; the absolute limit is -0.3 to +6 V. |
| 6 | CS | input | Output current sense pin; the average LED current sense resistor is connected between CS and GND, with a sense threshold of 300 mV at 100% brightness and 150 mV at 50%, and an absolute limit of -0.3 to +6 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TPOWER |
| Package | SOT-23-6L |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply voltage (normal operation) | VIN | 5 | 100 | V | 正常工作 (normal operation) | 3 | |
| Output current (normal operation) | ILED | 3 | 6 | A | 正常工作 (normal operation) | 3 | |
| VDD, CS, DRV, DIM to GND voltage | -0.3 | 6 | V | 2 | |||
| MODE to GND voltage | -0.3 | 7 | V | 2 | |||
| Power dissipation | 0.5 | W | 注 2 | 2 | |||
| Operating junction temperature range | -40 | 150 | ℃ | 2 | |||
| Storage temperature range | -40 | 150 | ℃ | 2 | |||
| ESD level (HBM) | 2000 | V | 2 | ||||
| ESD level (MM) | 200 | V | 2 | ||||
| DIM analog dimming voltage range | VDIM | 0.3 | 1.5 | V | 3 | ||
| VDD clamp voltage | VDD_CLP | 5.6 | V | 3 | |||
| Static operating current | ISTB | 405 | μA | VDD=5V | 3 | ||
| Undervoltage lockout threshold (VDD rising) | VUVLO | 3.1 | V | VDD 上升 | 3 | ||
| Undervoltage lockout hysteresis | VUVLO,HYS | 2.7 | V | VDD 下降 | 3 | ||
| Average current sense threshold at 100% brightness | VREF_100% | 300 | mV | 3 | |||
| Average current sense threshold at 50% brightness | VREF_50% | 150 | mV | 3 | |||
| Fixed off time at 100% brightness output | TOFF | 4.4 | μs | 100%亮度输出 (100% brightness output) | 3 | ||
| Power switch leading-edge blanking time | TLEB | 200 | ns | 3 | |||
| Maximum operating frequency | FSW_MAX | 220 | kHz | 3 | |||
| MODE pull-down resistance | RMODE | 50 | KΩ | 3 | |||
| MODE input high level | VMODE_H | 2 | V | 3 | |||
| MODE input low level | VMODE_L | 0.5 | V | 3 | |||
| MODE high-level clamp voltage | VMODE_CLP | 6.5 | V | 3 | |||
| DIM pull-up current | IDIM | 18 | μA | 3 | |||
| DIM analog dimming off voltage | VDIM_OFF | 0.15 | V | 3 | |||
| DIM analog dimming on voltage | VDIM_ON | 0.2 | V | 3 | |||
| Maximum gate drive source (pull-up) current | ISOURCE | 550 | mA | 3 | |||
| Maximum gate drive sink (pull-down) current | ISINK | 350 | mA | 3 | |||
| Output current smart thermal control start temperature | TST | 130 | ℃ | 3 | |||
| Overtemperature protection threshold | TSD | 150 | ℃ | 3 | |||
| Overtemperature protection hysteresis | THYS | 130 | ℃ | 3 |
CAD (KiCad official)
- Symbol:
TP8556N - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6L (KiCad packages3D, STEP)
- 3D model files:
tp8556n-etched.step/tp8556n-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tp8556n.step/tp8556n.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TPOWER datasheet (6 pp, sha256
508fd1ab8b5f5e16, retrieved 2026-10-17, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).