component
MST1694KC-A
Public Made by Adomby adom
MST 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
markdownMST1694KC-A
MST · AC-DC Controllers And Regulators · SOP-8
MST1694KC-A from MST, 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 | S | passive | MOSFET source of the internal 100V power MOSFET; pins 1 and 2 are tied together as the source connection (datasheet gives no separate limit for this pin). |
| 2 | S | passive | MOSFET source of the internal 100V power MOSFET; pins 1 and 2 are tied together as the source connection (datasheet gives no separate limit for this pin). |
| 3 | VCC | power_in | Chip supply pin: VCC absolute maximum is -0.3 to 7 V, UVLO rising threshold VUVLO1 is 3 V, and the typical set voltage is 5.6 V (range 5 to 5.8 V). |
| 4 | VO | power_out | Internal supply pin that takes the output voltage to supply VCC directly; absolute maximum is -0.3 to 25 V. |
| 5 | D | passive | MOSFET drain of the internal 100V power MOSFET; absolute maximum drain voltage VD is -0.7 to 100 V. |
| 6 | D | passive | MOSFET drain of the internal 100V power MOSFET; absolute maximum drain voltage VD is -0.7 to 100 V. |
| 7 | D | passive | MOSFET drain of the internal 100V power MOSFET; absolute maximum drain voltage VD is -0.7 to 100 V. |
| 8 | D | passive | MOSFET drain of the internal 100V power MOSFET; absolute maximum drain voltage VD is -0.7 to 100 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MST |
| 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 |
|---|---|---|---|---|---|---|---|
| VCC 耐压 (VCC pin voltage) | VCC | -0.3 | 7 | V | 3 | ||
| VOUT 耐压 (Vo pin voltage) | Vo | -0.3 | 25 | V | 3 | ||
| VD D 耐压 (drain voltage) | VD D | -0.7 | 100 | V | 3 | ||
| 存储温度 (storage temperature) | Tstg | -55 | 150 | ℃ | 3 | ||
| VCC 设定电压 (VCC set voltage) | 5 | 5.6 | 5.8 | V | 4 | ||
| 开启阈值 (turn-on threshold) | VON_TH | -250 | -260 | -300 | mV | 4 | |
| 关断阈值 (turn-off threshold) | VOFF_TH1 | -20 | -12 | -9 | mV | 4 | |
| 钳位电压 (clamp voltage) | VREG(DRV) | -50 | -40 | -32 | mV | 4 | |
| 最小开启时间 (minimum on time) | TON_MIN | 550 | 650 | 800 | ns | 4 | |
| 最小关断时间 (minimum off time) | TOFF_MIN | 0.9 | 1.2 | 1.5 | us | 4 | |
| VCC UVLO 阈值 (UVLO release voltage) | VUVLO1 | 3 | V | 4 | |||
| VCC UVLO 迟滞 (UVLO hysteresis) | VUVLO2 | 0.4 | V | 4 | |||
| VOUT 充电电流 (VOUT charge current) | IVOUT_CHG | 65 | mA | VO=5V, VCC=3.5V | 4 | ||
| 静态电流 (quiescent current) | IQ | 150 | µA | VO=12V | 4 | ||
| 开启延时 (turn-on delay) | 80 | ns | CLOAD = 5nF | 4 | |||
| 开启延时 (turn-on delay) | 90 | ns | CLOAD = 10nF | 4 | |||
| 关断延时 (turn-off delay) | 15 | ns | CLOAD = 5nF | 4 | |||
| 关断延时 (turn-off delay) | 25 | ns | CLOAD = 10nF | 4 | |||
| 关断迟滞 (VDS turn-off hysteresis) | VB-OFF | 3 | V | 4 | |||
| 高端检测电压 (high-side detection voltage) | VPS_ON_DET | 6 | V | 4 | |||
| 高端检测时间 (high-side detection time) | TPS_ON_DET | 0.3 | us | 4 | |||
| 最大驱动电流 (maximum drive current) | 0.8 | A | 4 | ||||
| 最大灌电流 (maximum sink current) | 4.5 | A | 4 | ||||
| 内置MOS内阻 (internal MOSFET on-resistance) | 17 | mR | Vgs=5.5V | 7 | |||
| 最大开关频率 (maximum switching frequency) | FMAX | 200 | KHz | 3 | |||
| 热阻 (thermal resistance, junction to ambient) | ΘJA | 150 | ℃/W | SOP8 package | 3 | ||
| 焊接温度 (soldering temperature) | Tsolder | 260 | ℃ | 10s | 3 | ||
| ESD 人体模式 (HBM ESD) | VESD | 6 | KV | HBM | 3 |
CAD (KiCad official)
- Symbol:
MST1694KC-A - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
mst1694kc-a-etched.step/mst1694kc-a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mst1694kc-a.step/mst1694kc-a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MST datasheet (11 pp, sha256
44fef75b486910c4, retrieved 2026-10-19, 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).