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il386dt
Public Unreviewedby Ray
IKSEMICON Audio Power OpAmps, SO-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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markdownIL386DT
IKSEMICON · Audio Power OpAmps · SO-8
IL386DT from IKSEMICON, in a SO-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GAIN | passive | Gain-set pin. Open leaves internal 1.35 kΩ resistor in place for gain of 20 (26 dB). A capacitor (typ. 10 µF) between pins 1 and 8 bypasses the resistor, boosting gain up to 200 (46 dB). A series RC allows intermediate gain values. |
| 2 | -INPUT | input | Inverting audio input. Ground-referenced via internal 50 kΩ bias resistor. Input bias current typ. 250 nA, max 400 nA (25 °C). Input voltage must remain within GND ≤ VIN ≤ VCC. |
| 3 | +INPUT | input | Non-inverting audio input. Ground-referenced via internal 50 kΩ bias resistor. Input resistance 30-130 kΩ. Unused input should be tied or capacitively coupled to ground to avoid instability at high gain. |
| 4 | GND | power_in | Device ground reference (0 V). Common return for supply and signal. |
| 5 | VOUT | output | Audio power amplifier output. Self-centering to V+/2 quiescent bias. Delivers typ. 325 mW into 8 Ω at V+=6 V (typ. 1000 mW at V+=9 V, 10% THD). Typically ac-coupled to speaker via an output capacitor (e.g. 250 µF). |
| 6 | V+ | power_in | Positive supply voltage. Recommended operating range 4.0-12 V (absolute max 15 V). Quiescent current 4 mA typ., 8 mA max at V+=6 V. |
| 7 | BYPASS | passive | Internal bias bypass. Connect a decoupling capacitor (typ. 10 µF) to ground to improve PSRR (typ. 45 dB with CBYPASS=10 µF at 1 kHz). |
| 8 | GAIN | passive | Gain-set pin, complementary to pin 1. External capacitor from pin 1 to pin 8 bypasses the internal 1.35 kΩ feedback resistor to increase closed-loop gain up to 200 (46 dB). Leave open for default gain of 20. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | IKSEMICON |
| Package | SO-8 |
| Category | Op-amp/Cmp |
| Pins | 8 |
Ordering variants
IL386DTDIL386DTIL386DTN
CAD (KiCad official)
- Symbol:
IL386DT - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: IKSEMICON datasheet (None pp, sha256
d8e474a698a6634e, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).