component
OC5738
Public Made by Adomby adom
OCX LED Drivers, ESOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# OC5738++**OCX** · LED Drivers · ESOP-8++OC5738 from OCX, in a ESOP-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 | GND | power_in | Device ground return. Connect to system ground with a wide, short trace to the current-sense resistor RCS. |+| 2 | VDD | power_in | Chip supply input. Operating range 8V-90V; UVLO rising 6.5V with 0.5V hysteresis. Bypass with a low-ESR ceramic capacitor placed close to VDD and GND. |+| 3 | NC | unconnected | No connection. Leave floating. |+| 4 | SW | output | Switching node, drain of the internal 90V power MOSFET. Connects to the buck inductor / freewheel diode. Exposed thermal pad is internally tied to SW. |+| 5 | CS | input | Inductor current sense input. Average voltage regulated to 200 mV typ (192-208 mV). Output current set by ILED = 0.2 / RCS. Max pin voltage 6.5V. |+| 6 | HL | input | High/Low brightness select. Float = full brightness (100% ILED). Pull to VDD via resistor to enter half-brightness mode (50% ILED). Internal 80 kΩ pull-down and 5.6V Zener clamp; limit ZENER current to <1 mA when sizing RHL. |+| 7 | NC | unconnected | No connection. Leave floating. |+| 8 | NC | unconnected | No connection. Leave floating. |+| 9 | EP | output | Exposed thermal pad, internally connected to SW (switching node). Solder to a copper island tied to SW for heat dissipation; do NOT connect to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | OCX |+| Package | ESOP-8 |+| Category | LED-drv |+| Pins | 9 |++## CAD (KiCad official)++- Symbol: `OC5738`+- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm`+- 3D model: ESOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [OCX datasheet](docs/oc5738-datasheet.pdf) (6 pp, sha256 `97a35a169100bb39`, 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](docs/oc5738-datasheet.pdf)
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