Cool-Power™ Series High Density Isolated DC-DC Converter (36V-75VIN , 3.3VOUT / 60W), PI3101 PI3101 Features PI3101 Wide Input Voltage Range (36 V – 75 Vdc) Up to 87% Efficiency Withstands Input Voltage Transients 100 V / 100 ms +/- 10% Output Voltage Trim 900 kHz Switching Frequency, minimizes input filtering and reduces output capacitance 3.3 V Regulated Output (+/-3% over line / load / temperature) 18 A / 60 W Output Power Programmable soft-start, remote on/off ENABLE, accurate temp. monitor function Very small footprint (0.57 in2 / 3.6cm2), enabling over 50% space savings Over-temperature and output over-voltage protection with auto-restart High Density (400 W/in3 / 25W/cm3), up to 3x versus conventional solutions Protection against short circuits & overload conditions Very low profile (0.265” / 6.7mm) 2250 V Input-to-Output Isolation Thermally Enhanced, Surface-Mount Power-System-in-Package (PSiP) 0.87” x 0.65” x 0.265” 22mm x 16.5mm x 6.7mm Product Description The Cool-PowerTM PI3101 is a very high density isolated DC-DC converter built on a proprietary ZVS topology using advanced control silicon integration, state of the art planar magnetics and high performance power semiconductor technology enabling high switching frequencies. The PI3101 operates over a wide range input of 36 V to 75 Vdc, delivering 60 W of output power (3.3V @ 18 A), yielding an unprecedented power density of 400 W/in3. The PI3101 is available in a thermally enhanced, surface-mount Power-System-in-Package (PSiP) that is just 0.57in2 and very low profile (0.265”), enabling space savings of over 50% versus conventional solutions. The high switching frequency of the PI3101 allows for small input and output filtering components, further reducing size and cost of the overall system solution. The PI3101 is fully equipped with a variety of programmable features including: +/-10% output voltage trimming, programmable soft-start capability, remote on / off ENABLE and an accurate temperature monitor function that provides an analog output voltage proportional to the internal temperature of the product, serving also as a fault alarm. The PI3101 is self-protected against various fault conditions including: input over-voltage and under-voltage lockout with autorestart capability, over-temperature and output over-voltage protection with auto-restart capability and a dual current limit threshold to protect against short circuits and overload conditions. Applications Power Over Ethernet (PoE) Communications Telecom Systems Network Power Part Numbering Part Number Input Voltage Output Voltage PI3101-00-HVIZ 36 – 75 V (withstands 100Vdc / 100ms transients) 3.3 V (+/-3% over line / load / temp) Continuous Output Current 18 A (Tcase < 100°C) Input-to-Output Isolation Operating Temp. Package Information 2250 V -40 to +125°C Junction Temp. (TJ) 0.87” x 0.65” x 0.265” 22mm x 16.5mm x 6.7mm Surface Mount Power-System-in-Package (PSiP) Typical Application Schematic Input Fuse Input Filter Vout Lin PICOR + Vin Cbulk Chf Css PI3101—00—HVIZ AP0061VIDE5738P MADE IN 0906 USA U.S. PATS. LISTED ON PACKING MATERIALS & DATASHEETS Cout Rload Recommended / Optional (Not Mandatory Components) Defining the Quality of Power Through Innovation picorpower.com 800-735-6200 Rev 1.0 04/10 Cool-Power™ Series High Density Isolated DC-DC Converter (36V-75VIN , 3.3VOUT / 60W), PI3101 PI3101 Pin Configuration +IN = 36 V – 75 V Input (+) SGND = Quiet Signal Ground TM = Temp Monitor & Alarm TRIM/SS = Trimming Reference & Soft-Start ENABLE = Remote on/off control –IN = 36 V – 75 V Input (–) PICOR +OUT = +3.3 V / 60 W Output (+) PI3101—00—HVIZ AP0061VIDE5738P MADE IN 0906 USA U.S. PATS. LISTED ON PACKING MATERIALS & DATASHEETS +OUT = +3.3 V / 60 W Output (–) Package Outline & Recommended PCB Land Pattern 1.12 TYP .044 6.73±.25 .265±.010 22.0 .87 3.01 .118 15.99 .630 1.33 .052 (4) PL. 3.01 .118 2X3.05 .120 4X.94 .037 8.00 .315 1.49 .059 (8) PL. CL 3.26 .128 2X3.24 .128 7.08 .279 7.55 .297 4X1.32 .052 15.74 .620 3.26 .128 1.38 .054 TYP .51 .020 TYP +IN 4X7.48 .295 +OUT 2X12.24 .482 7.74 .305 7.08 .279 6.08 .239 12.05 .474 BOTTOM VIEW 9.50 .374 ALL LEADS [ ] SEATING PLANE (10 ±) CL 6.08 .239 5.08 .200 4.08 .161 2X.70 .028 TOP VIEW (COMPONENT SIDE) INPUT OUTPUT INPUT OUTPUT 2X7.10 .280 16.5 .65 5.08 .200 SGND TM TRIM/SS ENABLE 4.08 .161 2X8.00 .315 -OUT -IN 2X3.43 .135 RECOMMENDED LAND PATTERN (COMPONENT SIDE SHOWN) Evaluation Board, PI3101-EVAL1 Efficiency Curve PI3101-00-HVIZ Electrical Efficiency 90 85 Efficiency (%) 80 75 70 65 36V 48V 75V 60 3 6 Defining the Quality of Power Through Innovation 9 Load Current (Amps) 12 picorpower.com 800-735-6200 15 18 Rev 1.0 04/10