component
OB5656BPA
Public Made by Adomby adom
OB On Bright Elec LED Drivers, ESOP-8. 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
markdownOB5656BPA
OB On Bright Elec · LED Drivers · ESOP-8
OB5656BPA from OB On Bright Elec, in a ESOP-8. 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 | HV | power_in | High voltage input that supplies the chip from the HV pin; normal operation starts when HV exceeds 30V, and Drain/HV/HVB to GND is rated -0.3V to 500V. |
| 2 | HVB | bidirectional | High voltage bleeding input; maximum bleeding output current is 60 mA, and HVB to GND is rated -0.3V to 500V. |
| 3 | GND | power_in | Ground reference for the device; TH, HP, COMP and CS are rated -0.3V to 9V to GND. |
| 4 | TH | bidirectional | Thermal foldback point setting: 200 kΩ to GND sets the 135 ℃ inflexion point, floating sets 145 ℃, and connecting to GND sets 175 ℃; TH to GND is rated -0.3V to 9V. |
| 5 | COMP | bidirectional | Loop compensation pin, with a capacitor connected between COMP and GND; COMP to GND is rated -0.3V to 9V. |
| 6 | HP | bidirectional | High PF setting pin, where an external resistor from HP to GND sets the bleeding current, with suggested resistor values given in the datasheet table; HP to GND is rated -0.3V to 9V. |
| 7 | CS | bidirectional | Current sense pin, where the LED current is set by a resistor from CS to GND against Vref_CC of 383-395-407 mV (min-typ-max) and a minimum CS voltage of 300 mV; CS to GND is rated -0.3V to 9V. |
| 8 | Drain | bidirectional | Drain of the internal power MOSFET, rated for BVdss of 500 V with a maximum conductive current of 240 mA at TA=125℃ and VDrain=10V. |
| 9 | Thermal pad | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | OB On Bright Elec |
| Package | ESOP-8 |
| Category | LED Drivers |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
OB5656BPA - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
ob5656bpa-etched.step/ob5656bpa-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ob5656bpa.step/ob5656bpa.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: OB On Bright Elec datasheet (8 pp, sha256
9302b2ad978edb2b, 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).