PT4100—48V SLTS021A 15 Watt Isolated DC-DC Converter (Revised 1/16/2001) • 15W Output Power (1) • Input Voltage Range: 36V to 75V • 1500 VDC Isolation • Low-Profile • Current Limit • Short-Circuit Protection • Over-Temperature Shutdown • UL1950 recognized • CSA 22.2 950 certified • Meets EN60950 The PT4100—48V series of dc/dc converters provide up 18 Watts/in3 of isolated power in a single low-profile module. Designed to operate from a standard 48V telecom bus, these modules employ switching frequencies of up to 850kHz, planar magnetics, and surfacemount construction. They are designed for Telecom, Industrial, Computer, Medical, and other distributed power applications that require input-to-output isolation. Standard Application Specifications PT4100—48V SERIES Characteristics (Ta=25°C unless noted) Symbols Conditions Output Current Io Over Vin range Vo = 3.3V Vo = 5V Vo = 12V Vo = 15V On/Off Min Typ Max Units 0 0 0 0 — — — — 4.0 (1) 3.0 1.25 1.0 A — 7 10 mA — — — 5.5 3.5 2.0 — — — A On/Off Standby Current Iin standby Vin = 48V, Pin 1 = -Vin Short Circuit Current Isc Vin = 48V Inrush Current Iir tir Vin = 48V @ max Io On start-up — — 0.6 1.0 1.0 5.0 A mSec Input Voltage Range Vin Io = 0.1 to max I o 36.0 48.0 75.0 V Output Voltage Tolerance ∆Vo Over Vin Range TA= -40°C to +85°C — ±1.0 ±2.0 %Vo Regline Over Vin range @ max Io — Reg load 10% to 100% of Io max — Line Regulation Load Regulation Vo Ripple/Noise Vn Vo ≤ 5.2V Vo = 12V Vo = 15V Vin=48V, Io=4.0A, Vin=48V, Io=3.0A, Vin=48V, Io=1.25A, Vin=48V, Io=1.0A, Transient Response ttr 50% load change Vo over/undershoot Efficiency η Vin=48V, Io=4.0A, Vin=48V, Io=3.0A, Vin=48V, Io=1.25A, Vin=48V, Io=1A, Vo=3.3V Vo=5V Vo=12V Vo=15V ±0.2 ±0.4 ±1.0 ±1.0 %Vo %Vo — — — — 70 75 120 100 90 100 150 200 mVpp — — 100 3.0 200 5.0 µSec %Vo Vo = 3.3V Vo = 5V Vo=12V Vo=15V — — — — 75 80 81 82 — — — — % Vo≤5.2V Vo=12V/15V 800 600 850 650 900 700 kHz -40 — +85 (2) 0 — +70 (1) Switching Frequency ƒo Over Vin and Io, Recommended Operating Temperature Range Ta Vin = 48V @ max Io Free air convection, (40-60LFM) PT4110 with 200 LFM airflow °C Thermal Resistance θja Free Air Convection, (40-60LFM) — 14 — °C/W Case Temperature Tc @ Thermal shutdown — — 100 °C Storage Temperature Ts — -40 — 110 °C Mechanical Shock — Per Mil-STD-202F, Method 213B, 6mS, Half-sine, mounted to a PCB — 50 — G’s Mechanical Vibration — Per Mil-STD-202F, Method 204D, 10-500Hz, Soldered in a PCB — 10 — G’s Weight — — — 28 — grams Isolation Capacitance Resistance — — — — — — 1500 — 10 — 1100 — — — — V pF MΩ Flammability — Materials meet UL 94V-0 Remote On/Off On (3) Off Referenced to –Vin 7.0 0.8 V 2.5 0 Notes: (1) The PT4110 is limited to 13.2W output over the temperature range of 0–70°C with 200LFM airflow. (2) See thermal derating curves (3) If pin 2 is left open, the converter will operate when input power is applied For technical support and more information, see inside back cover or visit www.ti.com/powertrends 1 +Vin 3 -Vin 2 PT4100 5 +Vout 4 -Vout Pin-Out Information Pin Function 1 Remote ON/OFF 2 -V in 3 +Vin 4 -V out 5 +Vout 6 Do not connect Ordering Information Through-Hole PT4101A = 5 Volts PT4102A = 12 Volts PT4103A = 15 Volts (1) PT4110A = 3.3 Volts PT4117A = 5.2 Volts Surface Mount PT4101C = 5 Volts PT4102C = 12 Volts PT4103C = 15 Volts (1) PT4110C = 3.3 Volts PT4117C = 5.2 Volts (For dimensions and PC board layout, see Package Style 710.) Typical Characteristics PT4100—48V 15 Watt Isolated DC-DC Converter PT4101, 5.0 VDC PT4102, 12.0 VDC (See Note A.) Efficiency vs Output Current Efficiency vs Output Current Vin 80 36V 48V 60V 72V 70 60 Vin 80 36V 48V 60V 72V 70 60 50 50 40 40 0.25 0.5 1 1.5 2 2.5 3 90 Vin 80 36V 48V 60V 72V 70 60 50 40 0.5 Iout-(Amps) 0.75 1 1.25 0.25 0.5 0.75 Iout-(Amps) Ripple vs Output Current Ripple vs Output Current 120 100 100 Vin 80 72V 60V 48V 36V 60 40 Ripple-(mV) 120 1 Iout-(Amps) Ripple vs Output Current 120 100 Ripple-(mV) 0 Efficiency - % Efficiency - % Efficiency - % 100 90 90 (See Note A.) Efficiency vs Output Current 100 100 Ripple-(mV) PT4103, 15.0 VDC (See Note A.) Vin 80 72V 60V 48V 36V 60 40 Vin 80 72V 60V 48V 36V 60 40 20 20 20 0 0 0.25 0 0.5 1 1.5 2 2.5 0.5 1 0 0.25 1.25 1 Iout-(Amps) Thermal Derating (Ta) (See Note B.) Thermal Derating (Ta) (See Note B.) ˝ ˝ 1.25 70° 1 85° 1.5 1 70° 0.75 85° Iout-(Amps) Iout-(Amps) 2 (See Note B.) ˝ 1 70° 85° Iout-(Amps) 0.75 Iout-(Amps) Thermal Derating (Ta) 2.5 0.5 3 Iout-(Amps) 3 0.75 0.75 0.5 0.25 0.5 0.25 0.5 0 0 0 36 40 44 48 52 56 60 64 68 36 72 40 44 Vin-(Volts) 52 56 60 64 68 36 72 60V 48V 2 36V 1 0 0.25 2 Iout-(Amps) 2.5 3 72V 60V 48V 2 0 1.5 Vin 3 1 52 56 60 64 68 72 5 4 36V PD-(Watts) 72V 3 PD-(Watts) Vin 1 48 Power Dissipation vs Output Current 5 4 0.5 44 Vin-(Volts) Power Dissipation vs Output Current 5 0 40 Vin-(Volts) Power Dissipation vs Output Current PD-(Watts) 48 4 Vin 3 72V 60V 2 48V 36V 1 0.5 0.75 Iout-(Amps) 1 1.25 0 0.25 0.5 0.75 1 Iout-(Amps) Note A: All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the DC-DC Converter. Note B: Thermal derating graphs are developed in free air convection cooling of 40-60 LFM. 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