component
UC2842B
Public Made by Adomby adom
UMW DC-DC Converters, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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uc2842b: specified limits as data (metadata.characteristics, 12 rows from the datasheet)
2 files changed
+171−1
README.md+19@@ -26,6 +26,25 @@ UC2842B from UMW, in a SOP-8. Pinout and pin descriptions extracted from the man | 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 |+|---|---|---|---|---|---|---|---|+| Supply Voltage (low impedance source) | VCC | | | 30 | V | low impedance source | 3 |+| Output Current | IO | -1 | | 1 | A | | 3 |+| Input Voltage (Analog Inputs pins 2,3) | VI | -0.3 | | 5.5 | V | | 3 |+| Error Amp Output Sink Current | ISINK (E.A) | | | 10 | mA | | 3 |+| Power Dissipation (TA=25°C) | PD | | | 1 | W | TA=25°C | 3 |+| Storage Temperature Range | TSTG | -65 | | 150 | °C | | 3 |+| Lead Temperature (soldering 5 sec.) | TL | | | 260 | °C | soldering 5 sec. | 3 |+| Operating Ambient Temperature | TA | -25 | | 85 | °C | | 3 |+| Reference Output Voltage | VREF | 4.95 | 5 | 5.05 | V | TJ=25°C, IREF=1mA | 4 |+| Undervoltage Lockout Start Threshold (2842) | VTH(ST) | 15 | 16 | 17 | V | | 5 |+| Min. Operating Voltage (After Turn On) (2842) | VOPR(min) | 9 | 10 | 11 | V | | 5 |+| Max. Duty Cycle (2842/43) | D(MAX) | 95 | 97 | 100 | % | | 5 |+ ## CAD (KiCad official) - Symbol: `UC2842B`
page.json+152−1@@ -177,6 +177,157 @@ "Package": "SOP-8", "Category": "Power Management (PMIC)", "Pins": "8"+ },+ "characteristics": {+ "version": 1,+ "source": "datasheet",+ "datasheet_sha256": "d748ab15bdd235a3",+ "rows": [+ {+ "name": "Supply Voltage (low impedance source)",+ "symbol": "VCC",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": null,+ "typ": null,+ "max": 30,+ "conditions": "low impedance source",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Output Current",+ "symbol": "IO",+ "kind": "absolute_maximum",+ "unit": "A",+ "min": -1,+ "typ": null,+ "max": 1,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Input Voltage (Analog Inputs pins 2,3)",+ "symbol": "VI",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": -0.3,+ "typ": null,+ "max": 5.5,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Error Amp Output Sink Current",+ "symbol": "ISINK (E.A)",+ "kind": "absolute_maximum",+ "unit": "mA",+ "min": null,+ "typ": null,+ "max": 10,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Power Dissipation (TA=25°C)",+ "symbol": "PD",+ "kind": "absolute_maximum",+ "unit": "W",+ "min": null,+ "typ": null,+ "max": 1,+ "conditions": "TA=25°C",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Storage Temperature Range",+ "symbol": "TSTG",+ "kind": "absolute_maximum",+ "unit": "°C",+ "min": -65,+ "typ": null,+ "max": 150,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Lead Temperature (soldering 5 sec.)",+ "symbol": "TL",+ "kind": "absolute_maximum",+ "unit": "°C",+ "min": null,+ "typ": null,+ "max": 260,+ "conditions": "soldering 5 sec.",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Operating Ambient Temperature",+ "symbol": "TA",+ "kind": "absolute_maximum",+ "unit": "°C",+ "min": -25,+ "typ": null,+ "max": 85,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Reference Output Voltage",+ "symbol": "VREF",+ "kind": "electrical",+ "unit": "V",+ "min": 4.95,+ "typ": 5,+ "max": 5.05,+ "conditions": "TJ=25°C, IREF=1mA",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Undervoltage Lockout Start Threshold (2842)",+ "symbol": "VTH(ST)",+ "kind": "electrical",+ "unit": "V",+ "min": 15,+ "typ": 16,+ "max": 17,+ "conditions": "",+ "source_page": 5,+ "source": "datasheet"+ },+ {+ "name": "Min. Operating Voltage (After Turn On) (2842)",+ "symbol": "VOPR(min)",+ "kind": "electrical",+ "unit": "V",+ "min": 9,+ "typ": 10,+ "max": 11,+ "conditions": "",+ "source_page": 5,+ "source": "datasheet"+ },+ {+ "name": "Max. Duty Cycle (2842/43)",+ "symbol": "D(MAX)",+ "kind": "electrical",+ "unit": "%",+ "min": 95,+ "typ": 97,+ "max": 100,+ "conditions": "",+ "source_page": 5,+ "source": "datasheet"+ }+ ] } }, "variants": [],@@ -218,4 +369,4 @@ "visibility": { "public": true }-}+}