component
OC6700B
Public Made by Adomby adom
OCX(欧创芯) 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
markdownOC6700B
OCX(欧创芯) · LED Drivers · ESOP-8
OC6700B from OCX(欧创芯), 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 | GND | power_in | Ground reference pin for the controller and the internal circuits. |
| 2 | EN | input | Chip enable, active high, which can also be driven with a PWM signal for LED dimming; the datasheet gives a logic-low maximum of 0.8 V. |
| 3 | COMP | passive | Error amplifier output used for frequency compensation, which requires an external resistor and capacitor network. |
| 4 | FB | input | LED output current sense feedback that regulates to about 250 mV (240 to 260 mV), with the LED current set by RFB. |
| 5 | SW | output | Drain of the internal power NMOS (switch node), rated for 60 V maximum, and also connected to the exposed bottom pad. |
| 6 | CS | input | Inductor peak current sense and input current-limit pin with an overcurrent threshold of 240 to 260 mV, and a voltage rating of -0.3 V to VDD+0.3 V. |
| 7 | TOFF | passive | Off-time setting pin where an external capacitor COFF sets the off-time, and leaving it unconnected selects an internal 620 ns off-time. |
| 8 | VDD | power_in | Chip supply pin with an internal 5.5 V clamp (maximum clamp current 10 mA) and undervoltage lockout at 2.6 V rising with 0.3 V hysteresis. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | OCX(欧创芯) |
| Package | ESOP-8 |
| Category | LED Drivers |
| Pins | 9 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 过流保护阈值 (Current-sense overcurrent threshold) | VCS_TH | 240 | 250 | 260 | mV | 4 | |
| FB 脚电压 (FB pin voltage) | VFB | 240 | 250 | 260 | mV | 4 | |
| VSW 端最大电压 (SW pin max voltage) | VSW | 60 | V | 3 | |||
| VDD 端最大电压 (VDD pin max voltage) | VDD | 5.5 | V | 3 | |||
| EN、COMP、FB、TOFF 和 CS 脚的电压 (pin voltage range) | VMAX | -0.3 | V | EN、COMP、FB、TOFF 和 CS 脚 | 3 | ||
| ESOP8 封装最大功耗 (max package power dissipation) | PESOP8 | 0.8 | W | ESOP8 封装 | 3 | ||
| 工作结温范围 (operating junction temperature range) | TJ | -40 | 125 | oC | 3 | ||
| 存储温度范围 (storage temperature range) | TSTG | -40 | 150 | oC | 3 | ||
| 焊接温度范围 (soldering temperature) | TSD | 240 | oC | 时间小于30秒 | 3 | ||
| 静电耐压值 (ESD, human body model) | VESD | 2000 | V | 人体模型 | 3 | ||
| VDD 钳位电压 (VDD clamp voltage) | VDD | 5.5 | V | IVDD<10mA | 4 | ||
| 欠压保护电压 (VDD undervoltage lockout) | VDD_UVLO | 2.6 | V | VDD上升 | 4 | ||
| 欠压保护迟滞 (UVLO hysteresis) | VDD_HYS | 0.3 | V | 4 | |||
| 工作电流 (operating current) | IOP | 1.3 | mA | FOP=200KHz | 4 | ||
| 待机输入电流 (standby input current) | IINQ | 200 | uA | 无负载，EN 为低电平 | 4 | ||
| 最小关断时间 (minimum off-time) | TOFF_MIN | 620 | ns | TOFF 脚无外接电容 | 4 | ||
| EN 端输入低电平 (EN input low level) | 0.8 | V | 4 | ||||
| MOS 管耐压 (MOS drain-source voltage) | VDS | 60 | V | 4 | |||
| MOS 管导通内阻 (MOS on-resistance) | RDSON | 50 | mΩ | VGS=5V | 4 | ||
| 过温调节 (over-temperature regulation threshold) | OTP_TH | 135 | oC | 4 |
CAD (KiCad official)
- Symbol:
OC6700B - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
oc6700b-etched.step/oc6700b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);oc6700b.step/oc6700b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: OCX(欧创芯) datasheet (8 pp, sha256
f34366ee36c8ce17, retrieved 2026-10-17, 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: 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).