component
TL494IDR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, SOIC-16. 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 C67476). 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
+34−14
page.json+12−10@@ -26,43 +26,45 @@ "model_3d_step": "tl494idr.step", "lbr": "tl494idr.lbr" },- "distributor_links": {},+ "distributor_links": {+ "lcsc": "C67476"+ }, "pins": [ { "number": "1", "name": "1IN+", "type": "input",- "description": "Noninverting input to error amplifier 1. Common-mode input range −0.3 V to VCC − 2 V."+ "description": "Noninverting input to error amplifier 1. Common-mode input range \u22120.3 V to VCC \u2212 2 V." }, { "number": "2", "name": "1IN-", "type": "input",- "description": "Inverting input to error amplifier 1. Common-mode input range −0.3 V to VCC − 2 V."+ "description": "Inverting input to error amplifier 1. Common-mode input range \u22120.3 V to VCC \u2212 2 V." }, { "number": "3", "name": "FEEDBACK", "type": "input",- "description": "Feedback / PWM-comparator input. Zero-duty-cycle input threshold ≈4 V; sinks 0.3-0.7 mA at 0.7 V. Ties together error-amp outputs and PWM comparator input."+ "description": "Feedback / PWM-comparator input. Zero-duty-cycle input threshold \u22484 V; sinks 0.3-0.7 mA at 0.7 V. Ties together error-amp outputs and PWM comparator input." }, { "number": "4", "name": "DTC", "type": "input",- "description": "Dead-time control comparator input. Programs the minimum guaranteed off-time between output pulses; 0 V gives ~45% max duty per output, ~3.3 V forces zero duty. Input bias current up to −10 μA (0 to 5.25 V)."+ "description": "Dead-time control comparator input. Programs the minimum guaranteed off-time between output pulses; 0 V gives ~45% max duty per output, ~3.3 V forces zero duty. Input bias current up to \u221210 \u03bcA (0 to 5.25 V)." }, { "number": "5", "name": "CT", "type": "passive",- "description": "Oscillator timing capacitor terminal. CT ties from this pin to GND; recommended 0.47 nF to 10 μF. Sets oscillator frequency together with RT (fosc ≈ 1.1/(RT·CT))."+ "description": "Oscillator timing capacitor terminal. CT ties from this pin to GND; recommended 0.47 nF to 10 \u03bcF. Sets oscillator frequency together with RT (fosc \u2248 1.1/(RT\u00b7CT))." }, { "number": "6", "name": "RT", "type": "passive",- "description": "Oscillator timing resistor terminal. RT ties from this pin to GND; recommended 1.8 kΩ to 500 kΩ. Sets oscillator charge current with CT for fosc = 1 kHz-300 kHz."+ "description": "Oscillator timing resistor terminal. RT ties from this pin to GND; recommended 1.8 k\u03a9 to 500 k\u03a9. Sets oscillator charge current with CT for fosc = 1 kHz-300 kHz." }, { "number": "7",@@ -110,19 +112,19 @@ "number": "14", "name": "REF", "type": "power_out",- "description": "Internal 5-V ±5% precision reference output (4.75-5.25 V at IO = 1 mA). Source up to 10 mA to external circuitry; short-circuit current ≈25 mA. Commonly used to bias OUTPUT CTRL and error-amp dividers."+ "description": "Internal 5-V \u00b15% precision reference output (4.75-5.25 V at IO = 1 mA). Source up to 10 mA to external circuitry; short-circuit current \u224825 mA. Commonly used to bias OUTPUT CTRL and error-amp dividers." }, { "number": "15", "name": "2IN-", "type": "input",- "description": "Inverting input to error amplifier 2. Common-mode input range −0.3 V to VCC − 2 V."+ "description": "Inverting input to error amplifier 2. Common-mode input range \u22120.3 V to VCC \u2212 2 V." }, { "number": "16", "name": "2IN+", "type": "input",- "description": "Noninverting input to error amplifier 2. Common-mode input range −0.3 V to VCC − 2 V."+ "description": "Noninverting input to error amplifier 2. Common-mode input range \u22120.3 V to VCC \u2212 2 V." } ], "provenance": {
tl494idr.lbr+22−4@@ -70,6 +70,18 @@ <smd name="14" x="2.4750" y="1.9050" dx="1.9500" dy="0.6000" layer="1"/> <smd name="15" x="2.4750" y="3.1750" dx="1.9500" dy="0.6000" layer="1"/> <smd name="16" x="2.4750" y="4.4450" dx="1.9500" dy="0.6000" layer="1"/>+ <polygon width="0.1200" layer="21">+ <vertex x="-2.6000" y="5.0100"/>+ <vertex x="-2.8400" y="5.3400"/>+ <vertex x="-2.3600" y="5.3400"/>+ </polygon>+ <polygon width="0.1000" layer="51">+ <vertex x="-0.9750" y="4.9500"/>+ <vertex x="1.9500" y="4.9500"/>+ <vertex x="1.9500" y="-4.9500"/>+ <vertex x="-1.9500" y="-4.9500"/>+ <vertex x="-1.9500" y="3.9750"/>+ </polygon> <wire x1="-2.0600" y1="5.0600" x2="2.0600" y2="5.0600" width="0.1200" layer="21"/> <wire x1="-2.0600" y1="5.0050" x2="-2.0600" y2="5.0600" width="0.1200" layer="21"/> <wire x1="-2.0600" y1="-5.0600" x2="-2.0600" y2="-5.0050" width="0.1200" layer="21"/>@@ -78,7 +90,7 @@ <wire x1="2.0600" y1="-5.0600" x2="-2.0600" y2="-5.0600" width="0.1200" layer="21"/> <text x="0" y="6.020" size="1.27" layer="25" align="bottom-center">>NAME</text> <text x="0" y="-6.020" size="1.27" layer="27" align="top-center">>VALUE</text>-<!--adom-pin1--><polygon width="0.0500" layer="21"><vertex x="-2.6000" y="5.0100"/><vertex x="-2.8400" y="5.3400"/><vertex x="-2.3600" y="5.3400"/></polygon></package>+</package> </packages> <symbols> <symbol name="TL494IDR">@@ -99,7 +111,7 @@ <pin name="2IN+" x="17.78" y="7.62" length="middle" direction="in" rot="R180"/> <pin name="2IN-" x="17.78" y="5.08" length="middle" direction="in" rot="R180"/> <pin name="REF" x="17.78" y="2.54" length="middle" direction="out" rot="R180"/>- <pin name="OUTPUT CTRL" x="17.78" y="0" length="middle" direction="in" rot="R180"/>+ <pin name="OUTPUT_CTRL" x="17.78" y="0" length="middle" direction="in" rot="R180"/> <pin name="VCC" x="17.78" y="-2.54" length="middle" direction="pwr" rot="R180"/> <pin name="C2" x="17.78" y="-5.08" length="middle" direction="out" rot="R180"/> <pin name="E2" x="17.78" y="-7.62" length="middle" direction="out" rot="R180"/>@@ -126,13 +138,19 @@ <connect gate="G$1" pin="2IN+" pad="16"/> <connect gate="G$1" pin="2IN-" pad="15"/> <connect gate="G$1" pin="REF" pad="14"/>- <connect gate="G$1" pin="OUTPUT CTRL" pad="13"/>+ <connect gate="G$1" pin="OUTPUT_CTRL" pad="13"/> <connect gate="G$1" pin="VCC" pad="12"/> <connect gate="G$1" pin="C2" pad="11"/> <connect gate="G$1" pin="E2" pad="10"/> <connect gate="G$1" pin="E1" pad="9"/> </connects>- <technologies><technology name=""/></technologies>+ <technologies>+ <technology name="">+ <attribute name="MPN" value="TL494IDR" constant="no"/>+ <attribute name="MANUFACTURER" value="Texas Instruments" constant="no"/>+ <attribute name="LCSC_PN" value="C67476" constant="no"/>+ </technology>+ </technologies> </device> </devices> </deviceset>