component
TL431BQPK
Public Made by Adomby adom
Texas Instruments Voltage Reference, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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tl431bqpk: specified limits as data (metadata.characteristics, 19 rows from the datasheet)
2 files changed
+261
README.md+26@@ -21,6 +21,32 @@ TL431BQPK from Texas Instruments, in a SOT-89-3. Pinout and pin descriptions ext | Category | Power Management (PMIC) | | Pins | 3 | +## Electrical characteristics++Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).++| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |+|---|---|---|---|---|---|---|---|+| 基准电压 (Reference voltage), TL431BQ | Vref | 2483 | 2495 | 2507 | mV | VKA = Vref，IKA = 10mA | 15 |+| 整个温度范围内的基准输入电压偏差 (Reference input voltage deviation over temperature range) | VI(dev) | | 14 | 34 | mV | VKA = Vref，IKA = 10mA | 15 |+| 基准电压变化与阴极电压变化之比 (Change in Vref to change in VKA ratio) | ΔVref / ΔVKA | | -1.4 | -2.7 | mV/V | IKA = 10mA，ΔVKA = 10V - Vref | 15 |+| 基准电压变化与阴极电压变化之比 (Change in Vref to change in VKA ratio) | ΔVref / ΔVKA | | -1 | -2 | mV/V | IKA = 10mA，ΔVKA = 36V - 10V | 15 |+| 基准输入电流 (Reference input current) | Iref | | 2 | 4 | µA | IKA = 10mA，R1 = 10kΩ，R2 = ∞ | 15 |+| 整个温度范围内的基准输入电流偏差 (Reference input current deviation over temperature range) | II(dev) | | 0.8 | 2.5 | µA | IKA = 10mA，R1 = 10kΩ，R2 = ∞ | 15 |+| 调节的最小阴极电流 (Minimum cathode current for regulation) | Imin | | 0.4 | 0.7 | mA | VKA = Vref | 15 |+| 关闭状态阴极电流 (Off-state cathode current) | Ioff | | 0.1 | 0.5 | µA | VKA = 36V，Vref = 0 | 15 |+| 动态阻抗 (Dynamic impedance) | /ZKA/ | | 0.2 | 0.5 | Ω | VKA = Vref，f ≤ 1kHz，IKA = 1mA 至 100mA | 15 |+| 阴极电压 (Cathode voltage) | VKA | | | 36 | V | Minimum printed as Vref (symbol, no numeric value given) | 6 |+| 连续阴极电流范围 (Continuous cathode current range) | IKA | 1 | | 100 | mA | | 6 |+| 自然通风条件下的工作温度范围 (Operating free-air temperature range) | TA | -40 | | 125 | °C | TL43xxQ | 6 |+| 阴极电压 (Cathode voltage) | VKA | | | 37 | V | | 6 |+| 连续阴极电流范围 (Continuous cathode current range) | IKA | -100 | | 150 | mA | | 6 |+| 基准输入电流 (Reference input current) | II(ref) | -0.05 | | 10 | mA | | 6 |+| 工作结温范围 (Operating virtual junction temperature range) | TJ | | | 150 | °C | | 6 |+| 贮存温度范围 (Storage temperature range) | Tstg | -65 | | 150 | °C | | 6 |+| 结至环境热阻 (Junction-to-ambient thermal resistance) | RθJA | | 52 | | °C/W | PK package column | 6 |+| 结至外壳（顶部）热阻 (Junction-to-case (top) thermal resistance) | RθJC(top) | | 9 | | °C/W | PK package column | 6 |+ ## CAD (KiCad official) - Symbol: `TL431BQPK`
page.json+235@@ -135,6 +135,241 @@ "Package": "SOT-89-3", "Category": "Power Management (PMIC)", "Pins": "3"+ },+ "characteristics": {+ "version": 1,+ "source": "datasheet",+ "datasheet_sha256": "313277b9351e61ed",+ "rows": [+ {+ "name": "基准电压 (Reference voltage), TL431BQ",+ "symbol": "Vref",+ "kind": "electrical",+ "unit": "mV",+ "min": 2483,+ "typ": 2495,+ "max": 2507,+ "conditions": "VKA = Vref，IKA = 10mA",+ "source_page": 15,+ "source": "datasheet"+ },+ {+ "name": "整个温度范围内的基准输入电压偏差 (Reference input voltage deviation over temperature range)",+ "symbol": "VI(dev)",+ "kind": "electrical",+ "unit": "mV",+ "min": null,+ "typ": 14,+ "max": 34,+ "conditions": "VKA = Vref，IKA = 10mA",+ "source_page": 15,+ "source": "datasheet"+ },+ {+ "name": "基准电压变化与阴极电压变化之比 (Change in Vref to change in VKA ratio)",+ "symbol": "ΔVref / ΔVKA",+ "kind": "electrical",+ "unit": "mV/V",+ "min": null,+ "typ": -1.4,+ "max": -2.7,+ "conditions": "IKA = 10mA，ΔVKA = 10V - Vref",+ "source_page": 15,+ "source": "datasheet"+ },+ {+ "name": "基准电压变化与阴极电压变化之比 (Change in Vref to change in VKA ratio)",+ "symbol": "ΔVref / ΔVKA",+ "kind": "electrical",+ "unit": "mV/V",+ "min": null,+ "typ": -1,+ "max": -2,+ "conditions": "IKA = 10mA，ΔVKA = 36V - 10V",+ "source_page": 15,+ "source": "datasheet"+ },+ {+ "name": "基准输入电流 (Reference input current)",+ "symbol": "Iref",+ "kind": "electrical",+ "unit": "µA",+ "min": null,+ "typ": 2,+ "max": 4,+ "conditions": "IKA = 10mA，R1 = 10kΩ，R2 = ∞",+ "source_page": 15,+ "source": "datasheet"+ },+ {+ "name": "整个温度范围内的基准输入电流偏差 (Reference input current deviation over temperature range)",+ "symbol": "II(dev)",+ "kind": "electrical",+ "unit": "µA",+ "min": null,+ "typ": 0.8,+ "max": 2.5,+ "conditions": "IKA = 10mA，R1 = 10kΩ，R2 = ∞",+ "source_page": 15,+ "source": "datasheet"+ },+ {+ "name": "调节的最小阴极电流 (Minimum cathode current for regulation)",+ "symbol": "Imin",+ "kind": "electrical",+ "unit": "mA",+ "min": null,+ "typ": 0.4,+ "max": 0.7,+ "conditions": "VKA = Vref",+ "source_page": 15,+ "source": "datasheet"+ },+ {+ "name": "关闭状态阴极电流 (Off-state cathode current)",+ "symbol": "Ioff",+ "kind": "electrical",+ "unit": "µA",+ "min": null,+ "typ": 0.1,+ "max": 0.5,+ "conditions": "VKA = 36V，Vref = 0",+ "source_page": 15,+ "source": "datasheet"+ },+ {+ "name": "动态阻抗 (Dynamic impedance)",+ "symbol": "|ZKA|",+ "kind": "electrical",+ "unit": "Ω",+ "min": null,+ "typ": 0.2,+ "max": 0.5,+ "conditions": "VKA = Vref，f ≤ 1kHz，IKA = 1mA 至 100mA",+ "source_page": 15,+ "source": "datasheet"+ },+ {+ "name": "阴极电压 (Cathode voltage)",+ "symbol": "VKA",+ "kind": "recommended_operating",+ "unit": "V",+ "min": null,+ "typ": null,+ "max": 36,+ "conditions": "Minimum printed as Vref (symbol, no numeric value given)",+ "source_page": 6,+ "source": "datasheet"+ },+ {+ "name": "连续阴极电流范围 (Continuous cathode current range)",+ "symbol": "IKA",+ "kind": "recommended_operating",+ "unit": "mA",+ "min": 1,+ "typ": null,+ "max": 100,+ "conditions": "",+ "source_page": 6,+ "source": "datasheet"+ },+ {+ "name": "自然通风条件下的工作温度范围 (Operating free-air temperature range)",+ "symbol": "TA",+ "kind": "recommended_operating",+ "unit": "°C",+ "min": -40,+ "typ": null,+ "max": 125,+ "conditions": "TL43xxQ",+ "source_page": 6,+ "source": "datasheet"+ },+ {+ "name": "阴极电压 (Cathode voltage)",+ "symbol": "VKA",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": null,+ "typ": null,+ "max": 37,+ "conditions": "",+ "source_page": 6,+ "source": "datasheet"+ },+ {+ "name": "连续阴极电流范围 (Continuous cathode current range)",+ "symbol": "IKA",+ "kind": "absolute_maximum",+ "unit": "mA",+ "min": -100,+ "typ": null,+ "max": 150,+ "conditions": "",+ "source_page": 6,+ "source": "datasheet"+ },+ {+ "name": "基准输入电流 (Reference input current)",+ "symbol": "II(ref)",+ "kind": "absolute_maximum",+ "unit": "mA",+ "min": -0.05,+ "typ": null,+ "max": 10,+ "conditions": "",+ "source_page": 6,+ "source": "datasheet"+ },+ {+ "name": "工作结温范围 (Operating virtual junction temperature range)",+ "symbol": "TJ",+ "kind": "absolute_maximum",+ "unit": "°C",+ "min": null,+ "typ": null,+ "max": 150,+ "conditions": "",+ "source_page": 6,+ "source": "datasheet"+ },+ {+ "name": "贮存温度范围 (Storage temperature range)",+ "symbol": "Tstg",+ "kind": "absolute_maximum",+ "unit": "°C",+ "min": -65,+ "typ": null,+ "max": 150,+ "conditions": "",+ "source_page": 6,+ "source": "datasheet"+ },+ {+ "name": "结至环境热阻 (Junction-to-ambient thermal resistance)",+ "symbol": "RθJA",+ "kind": "thermal",+ "unit": "°C/W",+ "min": null,+ "typ": 52,+ "max": null,+ "conditions": "PK package column",+ "source_page": 6,+ "source": "datasheet"+ },+ {+ "name": "结至外壳（顶部）热阻 (Junction-to-case (top) thermal resistance)",+ "symbol": "RθJC(top)",+ "kind": "thermal",+ "unit": "°C/W",+ "min": null,+ "typ": 9,+ "max": null,+ "conditions": "PK package column",+ "source_page": 6,+ "source": "datasheet"+ }+ ] } }, "variants": [],