component
UC3845BD1R2G
Public Made by Adomby adom
onsemi AC-DC Controllers and Regulators, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
orderable attributes: rebuild .lbr with adom-lbr 2.18.0 so MPN, MANUFACTURER and the distributor part numbers reach <technology> (LCSC_PN C98715). The published library carried no attributes at all, so a BOM had nothing to buy from. Distributor PNs matched on exact MPN AND corroborating manufacturer.
2 files changed
+30−10
page.json+6−4@@ -26,7 +26,9 @@ "model_3d_step": "uc3845bd1r2g.step", "lbr": "uc3845bd1r2g.lbr" },- "distributor_links": {},+ "distributor_links": {+ "lcsc": "C98715"+ }, "pins": [ { "number": "1",@@ -50,7 +52,7 @@ "number": "4", "name": "RT/CT", "type": "passive",- "description": "Oscillator timing pin. External resistor RT to Vref and timing capacitor CT to GND set the oscillator frequency (fOSC ≈ 1.72 / (RT·CT) for RT > 5 kΩ). Output switching frequency equals oscillator frequency."+ "description": "Oscillator timing pin. External resistor RT to Vref and timing capacitor CT to GND set the oscillator frequency (fOSC \u2248 1.72 / (RT\u00b7CT) for RT > 5 k\u03a9). Output switching frequency equals oscillator frequency." }, { "number": "5",@@ -62,7 +64,7 @@ "number": "6", "name": "Output", "type": "output",- "description": "High-current totem-pole gate-drive output for the external power MOSFET. Capable of ±1 A peak source/sink; typical VOH ≈ 13.5 V and VOL ≈ 0.1 V at 20 mA. Rise/fall times ~50 ns into 1 nF."+ "description": "High-current totem-pole gate-drive output for the external power MOSFET. Capable of \u00b11 A peak source/sink; typical VOH \u2248 13.5 V and VOL \u2248 0.1 V at 20 mA. Rise/fall times ~50 ns into 1 nF." }, { "number": "7",@@ -74,7 +76,7 @@ "number": "8", "name": "Vref", "type": "power_out",- "description": "Buffered 5.0 V ±1% precision reference output (4.95-5.05 V at 25 °C, 1 mA). Sources up to ~50 mA to bias external circuitry and to feed the oscillator timing resistor RT. Short-circuit protected (~85 mA typ)."+ "description": "Buffered 5.0 V \u00b11% precision reference output (4.95-5.05 V at 25 \u00b0C, 1 mA). Sources up to ~50 mA to bias external circuitry and to feed the oscillator timing resistor RT. Short-circuit protected (~85 mA typ)." } ], "provenance": {
uc3845bd1r2g.lbr+24−6@@ -62,6 +62,18 @@ <smd name="6" x="2.4750" y="-0.6350" dx="1.9500" dy="0.6000" layer="1"/> <smd name="7" x="2.4750" y="0.6350" dx="1.9500" dy="0.6000" layer="1"/> <smd name="8" x="2.4750" y="1.9050" dx="1.9500" dy="0.6000" layer="1"/>+ <polygon width="0.1200" layer="21">+ <vertex x="-2.6000" y="2.4700"/>+ <vertex x="-2.8400" y="2.8000"/>+ <vertex x="-2.3600" y="2.8000"/>+ </polygon>+ <polygon width="0.1000" layer="51">+ <vertex x="-0.9750" y="2.4500"/>+ <vertex x="1.9500" y="2.4500"/>+ <vertex x="1.9500" y="-2.4500"/>+ <vertex x="-1.9500" y="-2.4500"/>+ <vertex x="-1.9500" y="1.4750"/>+ </polygon> <wire x1="-2.0600" y1="2.5600" x2="2.0600" y2="2.5600" width="0.1200" layer="21"/> <wire x1="-2.0600" y1="2.4650" x2="-2.0600" y2="2.5600" width="0.1200" layer="21"/> <wire x1="-2.0600" y1="-2.5600" x2="-2.0600" y2="-2.4650" width="0.1200" layer="21"/>@@ -70,7 +82,7 @@ <wire x1="2.0600" y1="-2.5600" x2="-2.0600" y2="-2.5600" width="0.1200" layer="21"/> <text x="0" y="3.480" size="1.27" layer="25" align="bottom-center">>NAME</text> <text x="0" y="-3.480" size="1.27" layer="27" align="top-center">>VALUE</text>-<!--adom-pin1--><polygon width="0.0500" layer="21"><vertex x="-2.6000" y="2.4700"/><vertex x="-2.8400" y="2.8000"/><vertex x="-2.3600" y="2.8000"/></polygon></package>+</package> </packages> <symbols> <symbol name="UC3845BD1R2G">@@ -81,8 +93,8 @@ <text x="0" y="7.62" size="1.27" layer="95" align="bottom-center">>NAME</text> <text x="0" y="-10.16" size="1.27" layer="96" align="top-center">>VALUE</text> <pin name="Compensation" x="-17.78" y="2.54" length="middle" direction="out"/>- <pin name="Voltage Feedback" x="-17.78" y="0" length="middle" direction="in"/>- <pin name="Current Sense" x="-17.78" y="-2.54" length="middle" direction="in"/>+ <pin name="Voltage_Feedback" x="-17.78" y="0" length="middle" direction="in"/>+ <pin name="Current_Sense" x="-17.78" y="-2.54" length="middle" direction="in"/> <pin name="RT/CT" x="-17.78" y="-5.08" length="middle" direction="pas"/> <pin name="Vref" x="17.78" y="2.54" length="middle" direction="out" rot="R180"/> <pin name="VCC" x="17.78" y="0" length="middle" direction="pwr" rot="R180"/>@@ -100,15 +112,21 @@ <device name="" package="UC3845BD1R2G"> <connects> <connect gate="G$1" pin="Compensation" pad="1"/>- <connect gate="G$1" pin="Voltage Feedback" pad="2"/>- <connect gate="G$1" pin="Current Sense" pad="3"/>+ <connect gate="G$1" pin="Voltage_Feedback" pad="2"/>+ <connect gate="G$1" pin="Current_Sense" pad="3"/> <connect gate="G$1" pin="RT/CT" pad="4"/> <connect gate="G$1" pin="Vref" pad="8"/> <connect gate="G$1" pin="VCC" pad="7"/> <connect gate="G$1" pin="Output" pad="6"/> <connect gate="G$1" pin="GND" pad="5"/> </connects>- <technologies><technology name=""/></technologies>+ <technologies>+ <technology name="">+ <attribute name="MPN" value="UC3845BD1R2G" constant="no"/>+ <attribute name="MANUFACTURER" value="onsemi" constant="no"/>+ <attribute name="LCSC_PN" value="C98715" constant="no"/>+ </technology>+ </technologies> </device> </devices> </deviceset>