component
DK910
Public Made by Adomby adom
Shenzhen DongKe Semicon AC-DC Controllers And Regulators, SOP-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
markdownDK910
Shenzhen DongKe Semicon · AC-DC Controllers And Regulators · SOP-8
DK910 from Shenzhen DongKe Semicon, in a SOP-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 | IS | input | External resistor to GND sets the maximum primary peak current (Ip = 400 mV / Ris); the IS open-on voltage is 400 mV maximum and 160 mV minimum at VDD = 5 V. |
| 2 | GND | power_in | Ground pin for the controller. |
| 3 | FB | input | Primary-side feedback pin that senses the reflected output voltage for constant-voltage regulation (2.5 V internal reference) and constant-current control; FB above 3.8 V triggers open-loop protection and FB below 1.2 V for more than 32 ms triggers short-circuit protection. |
| 4 | VCC | power_in | Supply pin for the IC; connect a 10 uF to 47 uF capacitor to GND, with operating voltage 4.3 V to 5.5 V and VCC overvoltage protection at 6.0 V to 6.6 V. |
| 5 | OC | output | Drain of the internal 700 V high-voltage power MOSFET; the drain is rated 700 V minimum at Ioc = 1 mA, and the absolute pin voltage limit is -0.3 V to 730 V. |
| 6 | OC | output | Drain of the internal 700 V high-voltage power MOSFET; the drain is rated 700 V minimum at Ioc = 1 mA, and the absolute pin voltage limit is -0.3 V to 730 V. |
| 7 | OC | output | Drain of the internal 700 V high-voltage power MOSFET; the drain is rated 700 V minimum at Ioc = 1 mA, and the absolute pin voltage limit is -0.3 V to 730 V. |
| 8 | OC | output | Drain of the internal 700 V high-voltage power MOSFET; the drain is rated 700 V minimum at Ioc = 1 mA, and the absolute pin voltage limit is -0.3 V to 730 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen DongKe Semicon |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 供电电压 VCC (supply voltage) | US | -0.3 | 8 | V | 3 | ||
| 供电电流 VCC (supply current) | IS | 100 | mA | 3 | |||
| 引脚电压 (pin voltage) | UPV | -0.3 | V | Max printed as VCC+0.3 | 3 | ||
| 耐压 (pin withstand voltage) | UPP | -0.3 | 730 | V | 3 | ||
| 峰值电流 (peak current) | IPEAK | 900 | mA | 3 | |||
| 总耗散功率 (total power dissipation) | PTOT | 800 | mW | 3 | |||
| 工作温度范围 (operating temperature range) | TR | -25 | 135 | ℃ | 3 | ||
| 储存温度范围 (storage temperature range) | TSTG | -55 | 150 | ℃ | 3 | ||
| 焊接温度 (soldering temperature) | TW | 280 | ℃ | 5S | 3 | ||
| VCC 工作电压 (VCC operating voltage) | VCC | 4.3 | 5 | 5.5 | V | AC input 85V-265V | 3 |
| VCC 启动电压 (VCC start voltage) | VCC | 4.7 | 5.3 | 5.8 | V | AC input 85V-265V | 3 |
| VCC 重启电压 (VCC restart voltage) | VCC | 3.1 | 3.5 | 3.9 | V | AC input 85V-265V | 3 |
| VCC 保护电压 (VCC protection voltage) | VCC | 6 | 6.3 | 6.6 | V | AC input 85V-265V | 3 |
| VCC 工作电流 (VCC operating current) | 100 | mA | VDD=5V, FB=2V | 3 | |||
| 高压启动电流 (high-voltage start current) | 0.5 | mA | AC input 265V | 3 | |||
| 启动时间 (start-up time) | 500 | ms | AC input 85V | 3 | |||
| 功率管耐压 (power transistor breakdown voltage) | 700 | V | Ioc=1mA | 3 | |||
| IS 最大开通电压 (IS maximum turn-on voltage) | 400 | mV | VDD=5V | 3 | |||
| IS 最小开通电压 (IS minimum turn-on voltage) | 160 | mV | VDD=5V | 3 | |||
| 恒压基准电压 (constant-voltage reference) | 2.45 | 2.5 | 2.55 | V | VDD=5V | 3 | |
| 功率管最大电流 (power transistor maximum current) | 800 | mA | VDD=5V | 3 | |||
| 工作频率 (operating frequency) | 16 | 65 | 80 | KHz | VDD=5V | 3 | |
| 短路保护阀值 (short-circuit protection threshold) | 1.2 | V | VDD=5V, measured FB voltage | 3 | |||
| 开路保护电压 (open-circuit protection voltage) | 3.8 | V | VDD=5V, measured FB voltage | 3 | |||
| 温度保护 (thermal protection) | 135 | 145 | 155 | ℃ | VDD=5V | 3 | |
| 最小开通时间 (minimum on-time) | 500 | ns | VCC=5V | 3 |
CAD (KiCad official)
- Symbol:
DK910 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
dk910-etched.step/dk910-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dk910.step/dk910.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shenzhen DongKe Semicon datasheet (8 pp, sha256
25574aaedb9360d8, retrieved 2026-10-20, 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).