component
CD431
Public Made by Adomby adom
Changjing Voltage Reference, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
cd431: specified limits as data (metadata.characteristics, 17 rows from the datasheet)
2 files changed
+235
README.md+24@@ -21,6 +21,30 @@ CD431 from Changjing, in a SOT-23. Pinout and pin descriptions extracted from th | Category | 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 | Vref | 2.475 | 2.5 | 2.525 | V | VKA=VREF, IKA=10mA | 1 |+| Deviation of reference input voltage over temperature | △Vref/△T | | 4.5 | 17 | mV | VKA=VREF, IKA=10mA; TMIN=-25℃, TMAX=+85℃ (note) | 1 |+| Ratio of change in reference input voltage to change in cathode voltage (VKA = 10V to VREF) | △Vref/△VKA | | -1 | -2.7 | mV/V | IKA=10mA, △VKA=10V~VREF | 1 |+| Ratio of change in reference input voltage to change in cathode voltage (VKA = 36V to 10V) | △Vref/△VKA | | -0.5 | -2 | mV/V | IKA=10mA, △VKA=36V~10V | 1 |+| Reference input current | lref | | 1.5 | 4 | μA | IKA=10mA, R1=10kΩ, R2=∞ | 1 |+| Deviation of reference input current over full temperature range | △lref/△T | | 0.4 | 1.2 | μA | IKA=10mA, R1=10kΩ, R2=∞ | 1 |+| Minimum cathode current for regulation | IKA(min) | | 0.45 | 1 | mA | VKA=VREF | 1 |+| Off-state cathode current | IKA(OFF) | | 0.05 | 0.5 | μA | VKA=36V, VREF=0 | 1 |+| Dynamic impedance | ZKA | | 0.15 | 0.5 | Ω | VKA=VREF, IKA=1 to 100mA, f≤1.0kHz | 1 |+| Cathode voltage | VKA | | | 36 | V | | 1 |+| Cathode current range (continuous) | IKA | -100 | | 150 | mA | | 1 |+| Reference input current range | Iref | 0.05 | | 10 | mA | | 1 |+| Power dissipation | PD | | | 300 | mW | | 1 |+| Operating temperature range | Topr | -25 | | 85 | ℃ | | 1 |+| Storage temperature range | Tstg | -65 | | 150 | ℃ | | 1 |+| Junction temperature | TJ | | | 150 | ℃ | TMIN≤Ta≤TMAX, TA=-25 to 85℃ | 1 |+| Thermal resistance from junction to ambient | RθJA | | 417 | | ℃/W | | 1 |+ ## CAD (KiCad official) - Symbol: `CD431`
page.json+211@@ -127,6 +127,217 @@ "Package": "SOT-23", "Category": "PMIC", "Pins": "3"+ },+ "characteristics": {+ "version": 1,+ "source": "datasheet",+ "datasheet_sha256": "74c36e847d4914f5",+ "rows": [+ {+ "name": "Reference input voltage",+ "symbol": "Vref",+ "kind": "electrical",+ "unit": "V",+ "min": 2.475,+ "typ": 2.5,+ "max": 2.525,+ "conditions": "VKA=VREF, IKA=10mA",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Deviation of reference input voltage over temperature",+ "symbol": "△Vref/△T",+ "kind": "electrical",+ "unit": "mV",+ "min": null,+ "typ": 4.5,+ "max": 17,+ "conditions": "VKA=VREF, IKA=10mA; TMIN=-25℃, TMAX=+85℃ (note)",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Ratio of change in reference input voltage to change in cathode voltage (VKA = 10V to VREF)",+ "symbol": "△Vref/△VKA",+ "kind": "electrical",+ "unit": "mV/V",+ "min": null,+ "typ": -1,+ "max": -2.7,+ "conditions": "IKA=10mA, △VKA=10V~VREF",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Ratio of change in reference input voltage to change in cathode voltage (VKA = 36V to 10V)",+ "symbol": "△Vref/△VKA",+ "kind": "electrical",+ "unit": "mV/V",+ "min": null,+ "typ": -0.5,+ "max": -2,+ "conditions": "IKA=10mA, △VKA=36V~10V",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Reference input current",+ "symbol": "lref",+ "kind": "electrical",+ "unit": "μA",+ "min": null,+ "typ": 1.5,+ "max": 4,+ "conditions": "IKA=10mA, R1=10kΩ, R2=∞",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Deviation of reference input current over full temperature range",+ "symbol": "△lref/△T",+ "kind": "electrical",+ "unit": "μA",+ "min": null,+ "typ": 0.4,+ "max": 1.2,+ "conditions": "IKA=10mA, R1=10kΩ, R2=∞",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Minimum cathode current for regulation",+ "symbol": "IKA(min)",+ "kind": "electrical",+ "unit": "mA",+ "min": null,+ "typ": 0.45,+ "max": 1,+ "conditions": "VKA=VREF",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Off-state cathode current",+ "symbol": "IKA(OFF)",+ "kind": "electrical",+ "unit": "μA",+ "min": null,+ "typ": 0.05,+ "max": 0.5,+ "conditions": "VKA=36V, VREF=0",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Dynamic impedance",+ "symbol": "ZKA",+ "kind": "electrical",+ "unit": "Ω",+ "min": null,+ "typ": 0.15,+ "max": 0.5,+ "conditions": "VKA=VREF, IKA=1 to 100mA, f≤1.0kHz",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Cathode voltage",+ "symbol": "VKA",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": null,+ "typ": null,+ "max": 36,+ "conditions": "",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Cathode current range (continuous)",+ "symbol": "IKA",+ "kind": "absolute_maximum",+ "unit": "mA",+ "min": -100,+ "typ": null,+ "max": 150,+ "conditions": "",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Reference input current range",+ "symbol": "Iref",+ "kind": "absolute_maximum",+ "unit": "mA",+ "min": 0.05,+ "typ": null,+ "max": 10,+ "conditions": "",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Power dissipation",+ "symbol": "PD",+ "kind": "absolute_maximum",+ "unit": "mW",+ "min": null,+ "typ": null,+ "max": 300,+ "conditions": "",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Operating temperature range",+ "symbol": "Topr",+ "kind": "absolute_maximum",+ "unit": "℃",+ "min": -25,+ "typ": null,+ "max": 85,+ "conditions": "",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Storage temperature range",+ "symbol": "Tstg",+ "kind": "absolute_maximum",+ "unit": "℃",+ "min": -65,+ "typ": null,+ "max": 150,+ "conditions": "",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Junction temperature",+ "symbol": "TJ",+ "kind": "absolute_maximum",+ "unit": "℃",+ "min": null,+ "typ": null,+ "max": 150,+ "conditions": "TMIN≤Ta≤TMAX, TA=-25 to 85℃",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Thermal resistance from junction to ambient",+ "symbol": "RθJA",+ "kind": "thermal",+ "unit": "℃/W",+ "min": null,+ "typ": 417,+ "max": null,+ "conditions": "",+ "source_page": 1,+ "source": "datasheet"+ }+ ] } }, "sections": [