component
IS32LT3177-GRLA3-TR
Public Made by Adomby adom
ISSI Integrated Silicon Solution LED Drivers, SOP-8-EP. 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
markdownIS32LT3177-GRLA3-TR
ISSI Integrated Silicon Solution · LED Drivers · SOP-8-EP
IS32LT3177-GRLA3-TR from ISSI Integrated Silicon Solution, in a SOP-8-EP. 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 | OUT | output | Current sink output; the datasheet gives an absolute maximum output voltage of 44V and a maximum output current of 250mA, and the OUT breakdown voltage is 40V. |
| 2 | OUT | output | Current sink output (second OUT pin, bonded in parallel with pin 1); the datasheet gives an absolute maximum output voltage of 44V and a maximum output current of 250mA. |
| 3 | EN | input | Enable pin: on IS32LT3177 it takes a sufficient supply voltage of 5V to 40V (absolute maximum 44V), and on IS32LT3178 it acts as a PWM input up to 1kHz with absolute maximum 6.0V. |
| 4 | ISET | passive | Output current setting pin; a 1% accuracy resistor between this pin and GND sets the output current (8kΩ ≤ RISET ≤ 160kΩ for SOP-8-EP), and the pin must not be left floating. |
| 5 | GND | power_in | Ground pin; all GND pins must be connected to supply ground. |
| 6 | GND | power_in | Ground pin; all GND pins must be connected to supply ground. |
| 7 | GND | power_in | Ground pin; all GND pins must be connected to supply ground. |
| 8 | GND | power_in | Ground pin; all GND pins must be connected to supply ground. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ISSI Integrated Silicon Solution |
| Package | SOP-8-EP |
| Category | LED Drivers |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
IS32LT3177-GRLA3-TR - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: SOP-8-EP (KiCad packages3D, STEP)
- 3D model files:
is32lt3177-grla3-tr-etched.step/is32lt3177-grla3-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);is32lt3177-grla3-tr.step/is32lt3177-grla3-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ISSI Integrated Silicon Solution datasheet (22 pp, sha256
78ab75e127b35486, retrieved 2026-10-09, 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).