For assistance or to order, call Application Notes Mechanical Outline Product Selector Guide (800) 531-5782 PT42/4300 S e r i e s 3-7 WATT 48V INPUT ISOLATED DC-DC CONVERTER • Wide Input Voltage Range: 38V to 72V • 83% Efficiency • 1,500 VDC Isolation • 18 Pin DIP Package • 3.5 Million Hour MTBF • Meets FCC/EN55022 Class A • UL and CSA approved • No External Components Required • Adjustable Output Voltage Power Trends’ PT4200 series of isolated DC to DC converters advance the state-of-theart for board-mounted converters by employing high switching frequencies, thick-film technology and a high degree of silicon integration. The high reliability and very low package height makes these converters ideal for Telecom and Datacom applications requiring input-to-output isolation with board spacing down to 0.6”. The PT4200 series is offered in a unique molded through-hole or SMD-DIP package with single output voltages of 2V, 3.3V, 5V, and 12V, dual outputs of ±5V, +5V/+3.3V, and ±12V. Standard Application +Vout1 -Vout +Vout2 or NC NC Vadj NOR Specifications Symbols Conditions Output Current Io Over Vin range PT42/4300 Pin-Out Information Pin +Vin -Vin NC RC TOA Icl Vin = 48V Function 1 Vout1 2 Vout return 3 Vout2 or N/C 4 Do not connect 5 Do not connect Do not connect Min Typ Max Units 6 Vo = 2V, 3.3V Vo = 5V Vo = 12V 0 0 0 — — — 1.5 1.2 0.6 A A A 7 Vo = 2V Vo = 3.3V Vo = 5V Vo = 12V 2.0 1.7 1.4 0.7 — — — — 3.3 3.3 2.4 1.2 A A A A Do not connect 8* Vadj 9* Nominal output voltage resistor 10 Turn-on/off input voltage adjust On/Off Standby Current Iin standby Vin = 48V, Pin 11 = -Vin — 0.5 — mA 11 Remote on/off Short Circuit Current Isc Vin = 48V — — — — 2.8 2.4 1.9 1.2 — — — — A A A A 12 Do not connect 13 Do not connect 14 Do not connect 15 Do not connect Inrush Current Vo = 2V Vo = 3.3V Vo = 5V Vo = 12V Iir tir Vin = 48V @ max Io On start-up — — 0.6 1.0 1.0 5.0 A mSec Input Voltage Range Vin Over Io Range 38** 48 72 V Output Voltage Tolerance ∆Vo Over Io Range Idling Voltage Vo Io = 0A Ripple Rejection RR Line Regulation Regline Load Regulation Regload 10% to 100% of Io max Vo Ripple/Noise Vn Vin= 48V, Io=Io max — 30 70 mVpp Transient Response ttr 50% load change Vo over/undershoot — — 100 3.0 300 5.0 µSec %Vo Efficiency η Vin=48V, Io=1.5A, Vin=48V, Io=1.5A, Vin=48V, Io=1.2A, Vin=48V, Io=0.6A, — — — — 73 79 80 83 — — — — % % % % Switching Frequency ƒo Over Vin and Io — 485 — kHz Operating Temperature Ta Vin = 48V @ max Io Free air convection, (40-60LFM) -40 — +85 °C 16 Do not connect 17 -Vin 18 +Vin — ±4 — %Vo — — — — 2.7 3.65 5.6 14.3 3.0 4.0 6.0 17 V V V V * Please note that when the Vout adjust is not used, pin 8 must be connected to pin 9. Over Vin range @ 120 Hz — 60 — dB Ordering Information Over Vin range @ max Io — ±0.5 — %Vo — ±3 — %Vo Through-Hole PT4201A = 2V/1.5A PT4202A = 3.3V/1.5A PT4203A = 5V/1.2A PT4204A = 12V/0.6A PT4301A = ±5V/1A PT4302A = +5.2V/1A, +3.3V/1A PT4303A = ±12V/0.25A Surface Mount PT4201C = 2V/1.5A PT4202C = 3.3V/1.5A PT4203C = 5V/1.2A PT4204C = 12V/0.6A PT4301C = ±5V/1A PT4302C = +5.2V/1A, +3.3V/1A PT4303C = ±12V/0.25A Vo = 2V Vo = 3.3V Vo = 5V Vo = 12V Vo=2V Vo=3.3V Vo=5V Vo=12V Pin Temperature Tp @ Pin1 — — 95 °C Storage Temperature Ts — -55 — +125 °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, mounted to a PCB — 10 — G’s Weight — — — 20 — grams Isolation — — 1500 — — VDC Flammability — Materials meet UL 94V-0 ** Minimum input voltage is adjustable - See application note. 66 18 17 16 15 14 13 12 11 10 PT42 /4300 SERIES PT42/4300 Characteristics (Ta = 25°C unless noted) Current Limit 1 2 3 4 5 6 7 8 9 Revised 5/15/98 (For dimensions and PC board layout, see Package Style 900.) Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com For assistance or to order, call (800) 531-5782 PT42/4300 S e r i e s CHARACTERISTIC Efficiency vs Output Current Efficiency vs Output Current 100 36.0V 42.0V 48.0V 70 55.0V 60.0V 90 Vin 80 36.0V 42.0V 48.0V 55.0V 60.0V 70 60 60 50 50 0 0.3 0.6 0.9 1.2 Ripple vs Output Current 0.4 0.6 0.8 1 0.1 0.2 15 10 5 Vin 60.0V 55.0V 48.0V 42.0V 36.0V 15 10 1.5 Vin 60.0V 55.0V 48.0V 42.0V 36.0V 15 10 5 0 0 0.2 0.4 Iout-(Amps) 0.6 0.8 1 0 1.2 0.1 0.2 Iout-(Amps) Power Dissipation vs Output Current Vin 60.0V 55.0V 48.0V 42.0V 36.0V 1 0.8 0.6 1.6 1.4 1.4 1.2 Vin 1 60.0V 55.0V 48.0V 42.0V 36.0V 0.8 0.6 0.4 0.4 0.2 0.4 0.5 0.6 Power Dissipation vs Output Current 1.6 PD-(Watts) 1.2 PD-(Watts) 1.4 0.3 Iout-(Amps) Power Dissipation vs Output Current 1.6 0.6 20 20 0 1.2 0.5 Ripple vs Output Current 5 0 0.4 25 Ripple-(mV) 60.0V 55.0V 48.0V 42.0V 36.0V Ripple-(mV) Vin 0.3 Iout-(Amps) Ripple vs Output Current 20 0.9 55.0V 60.0V 0 1.2 25 0.6 48.0V Iout-(Amps) 25 0.3 36.0V 42.0V 70 40 0.2 Iout-(Amps) 0 Vin 80 50 0 1.5 90 60 40 40 Ripple-(mV) Efficiency - % Vin 80 Efficiency - % Efficiency - % 90 (See Note 1) Efficiency vs Output Current 100 100 PD-(Watts) PT4204 12.0V (See Note 1) 1.2 Vin 60.0V 55.0V 48.0V 42.0V 36.0V 1 0.8 0.6 0.4 0.2 0.2 0 0 0.3 0.6 0.9 1.2 1.5 0 0 0 Iout-(Amps) 0.2 0.4 0.6 0.8 1 1.2 0 Iout-(Amps) 0.1 0.2 0.3 0.4 0.5 0.6 Iout-(Amps) Note 1: 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. Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http:// www.powertrends.com 67 DATA SHEETS PT4203 5.0V (See Note 1) 48V Bus Products PT4202 3.3V DATA IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. 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