component
LED7706TR
Public Made by Adomby adom
STMicroelectronics LED Drivers, WQFN-24-EP(4x4). 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
markdownLED7706TR
STMicroelectronics · LED Drivers · WQFN-24-EP(4x4)
LED7706TR from STMicroelectronics, in a WQFN-24-EP(4x4). 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 | COMP | output | Error amplifier output; connect RC series network to SGND to compensate the boost regulator loop. |
| 2 | RILIM | input | Row current limit programming pin; connect resistor to SGND to set row output current up to 30 mA. |
| 3 | BILIM | input | Boost converter current limit programming pin; connect resistor to SGND to set internal MOSFET current limit. |
| 4 | FSW | input | Switching frequency selection and external sync input; resistor to SGND sets frequency or input for external synchronization. |
| 5 | MODE | input | Current generators fault management selector; detects and manages LED open and short-circuit failures. |
| 6 | AVCC | power_in | Analog supply input +5 V; connect to LDO5 through RC filter. |
| 7 | LDO5 | power_out | LDO output +5 V; power supply for device; bypass to SGND with 1 μF ceramic capacitor. |
| 8 | VIN | power_in | Input voltage supply pin with 4.5 V to 36 V range; connect to main supply rail. |
| 9 | SLOPE | input | Slope compensation setting pin; connect resistor from boost output to this pin to avoid sub-harmonic instability. |
| 10 | SGND | power_in | Signal ground; supply return for analog circuitry and current generators; can connect to thermal pad. |
| 11 | ROW1 | output | Row driver output #1; LED current sink output with up to 30 mA capability. |
| 12 | ROW2 | output | Row driver output #2; LED current sink output with up to 30 mA capability. |
| 13 | ROW3 | output | Row driver output #3; LED current sink output with up to 30 mA capability. |
| 14 | ROW4 | output | Row driver output #4; LED current sink output with up to 30 mA capability. |
| 15 | ROW5 | output | Row driver output #5; LED current sink output with up to 30 mA capability. |
| 16 | ROW6 | output | Row driver output #6; LED current sink output with up to 30 mA capability. |
| 17 | PGND | power_in | Power ground; source of the internal Power MOSFET; handles boost section switching current. |
| 18 | OVSEL | input | Over-voltage selection input; set desired OV threshold using external voltage divider. |
| 19 | LX | output | Switching node; drain of internal Power MOSFET in boost converter. |
| 20 | DIM | input | PWM dimming input; used to externally set LED brightness with PWM signal. |
| 21 | EN | input | Enable input; device turned off when low; soft-start sequence initiated when high or left open. |
| 22 | FAULT | output | Fault signal output; open drain output that goes low when fault condition detected. |
| 23 | SYNC | output | Synchronization output; external synchronization clock output for multi-device applications. |
| 24 | SS | input | Soft-start pin; connect capacitor to SGND to set soft-start duration. |
| 25 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | WQFN-24-EP(4x4) |
| Category | LED Drivers |
| Pins | 25 |
CAD (KiCad official)
- Symbol:
LED7706TR - Footprint:
Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm - 3D model: WQFN-24-EP(4x4) (KiCad packages3D, STEP)
- 3D model files:
led7706tr-etched.step/led7706tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);led7706tr.step/led7706tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (46 pp, sha256
7a9c0b210e85f573, retrieved 2026-10-03, 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).