component
TL431IZT
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STMicroelectronics Voltage Reference, TO-92. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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tl431izt: specified limits as data (metadata.characteristics, 21 rows from the datasheet)
2 files changed
+287
README.md+28@@ -21,6 +21,34 @@ TL431IZT from STMicroelectronics, in a TO-92. Pinout and pin descriptions extrac | 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 |+|---|---|---|---|---|---|---|---|+| Reference input voltage (Tamb = 25 °C) | Vref | 2.44 | 2.495 | 2.55 | V | VKA = Vref, Ik = 10 mA, Tamb = 25 °C | 5 |+| Reference input voltage over temperature range | Vref | 2.41 | | 2.58 | V | VKA = Vref, Ik = 10 mA, Tmin ≤ Tamb ≤ Tmax | 7 |+| Reference input voltage deviation over temperature range | Vref | | 7 | 30 | mV | VKA = Vref, Ik = 10 mA, Tmin ≤ Tamb ≤ Tmax | 7 |+| Ratio of change in reference input voltage to change in cathode-anode voltage (VKA = 10 V to Vref) | ΔVref/ΔVKA | -2.7 | -2 | -1.4 | mV/V | Ik = 10 mA, VKA = 10 V to Vref | 7 |+| Ratio of change in reference input voltage to change in cathode-anode voltage (VKA = 36 V to 10 V) | ΔVref/ΔVKA | -1 | | | mV/V | Ik = 10 mA, VKA = 36 V to 10 V | 7 |+| Reference input current (Tamb = 25 °C) | Iref | | 1.8 | 4 | µA | Ik = 10 mA, R1 = 10 k, R2 = Tamb = 25 °C | 7 |+| Reference input current over temperature range | Iref | | | 6.5 | µA | Ik = 10 mA, R1 = 10 k, R2 = Tmin ≤ Tamb ≤ Tmax | 7 |+| Reference input current deviation over temperature range | Iref | | 0.8 | 2.5 | µA | Ik = 10 mA, R1 = 10 k, R2 = Tmin ≤ Tamb ≤ Tmax | 7 |+| Minimum cathode current for regulation | Imin | | 0.5 | 1 | mA | VKA = Vref | 7 |+| Off-state cathode current | Ioff | | 2.6 | 1000 | nA | | 7 |+| Dynamic impedance | ZKA | | 0.22 | 0.5 | Ω | VKA = Vref, Ik = 1 to 100 mA, f ≤ 1 kHz | 7 |+| Cathode to anode voltage (absolute maximum) | VKA | | | 37 | V | | 4 |+| Continuous cathode current range (absolute maximum) | Ik | -100 | | 150 | mA | | 4 |+| Reference input current range (absolute maximum) | Iref | -0.05 | | 10 | mA | | 4 |+| Storage temperature range | Tstg | -65 | | 150 | °C | | 4 |+| Junction temperature | TJ | | | 150 | °C | | 4 |+| Cathode to anode voltage (recommended operating range, upper bound) | VKA | | | 36 | V | Lower bound printed as Vref (not a numeric value) | 4 |+| Cathode current (recommended operating range) | Ik | 1 | | 100 | mA | | 4 |+| Operating free-air temperature range (TL431I/AI - TL432I/AI) | Toper | -40 | | 105 | °C | | 4 |+| Thermal resistance junction to case (TO-92) | Rthjc | | 57 | | °C/W | | 4 |+| Thermal resistance junction to ambient (TO-92) | Rthja | | 200 | | °C/W | | 4 |+ ## CAD (KiCad official) - Symbol: `TL431IZT`
page.json+259@@ -133,6 +133,265 @@ "Package": "TO-92", "Category": "Power Management (PMIC)", "Pins": "3"+ },+ "characteristics": {+ "version": 1,+ "source": "datasheet",+ "datasheet_sha256": "d174b1869a9d426d",+ "rows": [+ {+ "name": "Reference input voltage (Tamb = 25 °C)",+ "symbol": "Vref",+ "kind": "tolerance",+ "unit": "V",+ "min": 2.44,+ "typ": 2.495,+ "max": 2.55,+ "conditions": "VKA = Vref, Ik = 10 mA, Tamb = 25 °C",+ "source_page": 5,+ "source": "datasheet"+ },+ {+ "name": "Reference input voltage over temperature range",+ "symbol": "Vref",+ "kind": "tolerance",+ "unit": "V",+ "min": 2.41,+ "typ": null,+ "max": 2.58,+ "conditions": "VKA = Vref, Ik = 10 mA, Tmin ≤ Tamb ≤ Tmax",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Reference input voltage deviation over temperature range",+ "symbol": "Vref",+ "kind": "tolerance",+ "unit": "mV",+ "min": null,+ "typ": 7,+ "max": 30,+ "conditions": "VKA = Vref, Ik = 10 mA, Tmin ≤ Tamb ≤ Tmax",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Ratio of change in reference input voltage to change in cathode-anode voltage (VKA = 10 V to Vref)",+ "symbol": "ΔVref/ΔVKA",+ "kind": "voltage_coefficient",+ "unit": "mV/V",+ "min": -2.7,+ "typ": -2,+ "max": -1.4,+ "conditions": "Ik = 10 mA, VKA = 10 V to Vref",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Ratio of change in reference input voltage to change in cathode-anode voltage (VKA = 36 V to 10 V)",+ "symbol": "ΔVref/ΔVKA",+ "kind": "voltage_coefficient",+ "unit": "mV/V",+ "min": -1,+ "typ": null,+ "max": null,+ "conditions": "Ik = 10 mA, VKA = 36 V to 10 V",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Reference input current (Tamb = 25 °C)",+ "symbol": "Iref",+ "kind": "electrical",+ "unit": "µA",+ "min": null,+ "typ": 1.8,+ "max": 4,+ "conditions": "Ik = 10 mA, R1 = 10 k, R2 = Tamb = 25 °C",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Reference input current over temperature range",+ "symbol": "Iref",+ "kind": "electrical",+ "unit": "µA",+ "min": null,+ "typ": null,+ "max": 6.5,+ "conditions": "Ik = 10 mA, R1 = 10 k, R2 = Tmin ≤ Tamb ≤ Tmax",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Reference input current deviation over temperature range",+ "symbol": "Iref",+ "kind": "tolerance",+ "unit": "µA",+ "min": null,+ "typ": 0.8,+ "max": 2.5,+ "conditions": "Ik = 10 mA, R1 = 10 k, R2 = Tmin ≤ Tamb ≤ Tmax",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Minimum cathode current for regulation",+ "symbol": "Imin",+ "kind": "electrical",+ "unit": "mA",+ "min": null,+ "typ": 0.5,+ "max": 1,+ "conditions": "VKA = Vref",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Off-state cathode current",+ "symbol": "Ioff",+ "kind": "electrical",+ "unit": "nA",+ "min": null,+ "typ": 2.6,+ "max": 1000,+ "conditions": "",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Dynamic impedance",+ "symbol": "ZKA",+ "kind": "electrical",+ "unit": "Ω",+ "min": null,+ "typ": 0.22,+ "max": 0.5,+ "conditions": "VKA = Vref, Ik = 1 to 100 mA, f ≤ 1 kHz",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Cathode to anode voltage (absolute maximum)",+ "symbol": "VKA",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": null,+ "typ": null,+ "max": 37,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Continuous cathode current range (absolute maximum)",+ "symbol": "Ik",+ "kind": "absolute_maximum",+ "unit": "mA",+ "min": -100,+ "typ": null,+ "max": 150,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Reference input current range (absolute maximum)",+ "symbol": "Iref",+ "kind": "absolute_maximum",+ "unit": "mA",+ "min": -0.05,+ "typ": null,+ "max": 10,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Storage temperature range",+ "symbol": "Tstg",+ "kind": "absolute_maximum",+ "unit": "°C",+ "min": -65,+ "typ": null,+ "max": 150,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Junction temperature",+ "symbol": "TJ",+ "kind": "absolute_maximum",+ "unit": "°C",+ "min": null,+ "typ": null,+ "max": 150,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Cathode to anode voltage (recommended operating range, upper bound)",+ "symbol": "VKA",+ "kind": "recommended_operating",+ "unit": "V",+ "min": null,+ "typ": null,+ "max": 36,+ "conditions": "Lower bound printed as Vref (not a numeric value)",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Cathode current (recommended operating range)",+ "symbol": "Ik",+ "kind": "recommended_operating",+ "unit": "mA",+ "min": 1,+ "typ": null,+ "max": 100,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Operating free-air temperature range (TL431I/AI - TL432I/AI)",+ "symbol": "Toper",+ "kind": "recommended_operating",+ "unit": "°C",+ "min": -40,+ "typ": null,+ "max": 105,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Thermal resistance junction to case (TO-92)",+ "symbol": "Rthjc",+ "kind": "thermal",+ "unit": "°C/W",+ "min": null,+ "typ": 57,+ "max": null,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Thermal resistance junction to ambient (TO-92)",+ "symbol": "Rthja",+ "kind": "thermal",+ "unit": "°C/W",+ "min": null,+ "typ": 200,+ "max": null,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ }+ ] } }, "variants": [],