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NSG2104

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by Ray

WXNSIC Isolators - Gate Drivers, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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NSG2104

WXNSIC · Isolators - Gate Drivers · SOIC-8

NSG2104 from WXNSIC, in a SOIC-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 VCC power_in Low-side fixed supply input. Recommended operating range 10 V to 20 V (absolute max 25 V). Integrated UVLO with 8.9 V rising / 8.2 V falling thresholds. Bypass with a low-ESR ceramic capacitor to VSS.
2 IN input High- and low-side PWM signal input. CMOS/LSTTL-compatible logic input (VIH ≥ 2.5 V, VIL ≤ 0.8 V) referenced to VSS; accepts 3.3 V, 5 V, or 15 V logic. Drives HO active-high and LO with complementary polarity and internal dead-time.
3 SD input Active-low shutdown input (SD-bar). When asserted low, both HO and LO outputs are disabled. CMOS/LSTTL-compatible logic (VIH ≥ 2.5 V, VIL ≤ 0.8 V) referenced to VSS.
4 VSS power_in Logic and low-side power ground reference. All input and output voltage parameters are referenced to VSS.
5 LO output Low-side gate driver output referenced to VSS. Swings between VSS and VCC with 300 mA source / 600 mA sink capability. Connect through a gate resistor to the low-side power MOSFET/IGBT gate.
6 VS power_in High-side floating ground return. Connects to the source/emitter of the high-side power switch (SW node). Rated up to +700 V, with -9 V DC negative bias tolerance (-50 V transient, 50 ns pulse). dVS/dt tolerance ±50 V/ns.
7 HO output High-side floating gate driver output referenced to VS. Swings between VS and VB with 300 mA source / 600 mA sink capability. Connect through a gate resistor to the high-side power MOSFET/IGBT gate.
8 VB power_in High-side floating bootstrap supply. Powers the high-side driver relative to VS; recommended VS+10 V to VS+20 V. Connect a bootstrap capacitor from VB to VS and a bootstrap diode from VCC to VB. Absolute max 725 V to VSS.

Key specifications

Parameter Value
Manufacturer WXNSIC
Package SOIC-8
Category PMIC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • NSG2104S

CAD (KiCad official)

  • Symbol: NSG2104
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: WXNSIC datasheet (9 pp, sha256 13accdd71465d290, retrieved 2026-08-17, 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: 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).

Datasheet PDF