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fd2103s
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Fortior Tech Isolators - Gate Drivers, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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markdownFD2103S
Fortior Tech · Isolators - Gate Drivers · SOP-8
FD2103S from Fortior Tech, in a SOP-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 supply voltage. Recommended operating range 10 V to 20 V (absolute max 25 V). Under-voltage lockout trips at ~8.9 V (rising) with ~0.7 V hysteresis. Bypass with a low-ESR ceramic to COM close to the pin. |
| 2 | HIN | input | High-side logic input, non-inverting: a high level on HIN drives HO high. Compatible with 3.3 V/5 V logic (VIH ≥ 2.7 V, VIL ≤ 0.8 V). Input bias current ≤120 μA at 5 V. |
| 3 | LIN* | input | Low-side logic input, inverting (active-low): a high level on LIN* drives LO low. 3.3 V/5 V logic compatible (VIH ≥ 2.7 V, VIL ≤ 0.8 V). Internal shoot-through prevention and 100 ns dead-time interact with HIN. |
| 4 | COM | power_in | Low-side return / device ground. Reference for VCC, HIN, LIN* and LO. All absolute-maximum voltages in the datasheet are referenced to COM. |
| 5 | LO | output | Low-side gate-driver output. Push-pull output between COM and VCC delivering ±1.0 A peak gate current (PWD ≤ 10 μs). Connect through a series gate resistor to the low-side N-MOSFET gate. |
| 6 | VS | power_in | High-side floating supply return, connects to the switching node (source of the high-side N-MOSFET). Recommended range -5 V to +180 V (SOIC-8; ≤100 V recommended for CPC-8). dVS/dt ≤ 50 V/ns. VSN static negative excursion ~ -6.5 V typ. |
| 7 | HO | output | High-side gate-driver output, floating between VS and VB. Push-pull driver delivering ±1.0 A peak gate current (PWD ≤ 10 μs). Connect through a series gate resistor to the high-side N-MOSFET gate. |
| 8 | VB | power_in | High-side floating supply (bootstrap rail). Recommended VB = VS+10 V to VS+20 V (absolute max VS+25 V; 205 V to COM). Supplied by a bootstrap diode from VCC and a bootstrap capacitor from VB to VS (1 μF to 50 μF ceramic/tantalum, placed close to the pins). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Fortior Tech |
| Package | SOP-8 |
| Category | PMIC |
| Pins | 8 |
Ordering variants
FD2103SFD2103SFD2103C
CAD (KiCad official)
- Symbol:
FD2103S - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Fortior Tech datasheet (None pp, sha256
0e64635c8886b731, 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).