PT4205 TI | Alldatasheet

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Technical content

For assistance or to order, call (800) 531-5782 60 Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com Application Notes Mechanical Outline Product Selector Guide Revised 5/15/98 PT4205 3-7 WATT 24V INPUT ISOLATED DC-DC CONVERTER

Ordering Information

PT4205A = 3.3V/1.8A PT4206A = 5V/1.2A Surface Mount PT4205C = 3.3V/1.8A PT4206C = 5V/1.2A Pin-Out Information Pin Function 1V out 2V out return

3 Do not connect

4 Do not connect

5 Do not connect

6 Do not connect

7 Sync input

8* V adj 9* Nominal output voltage resistor

10 T urn-on/off input

11 Remote on/off

12 Do not connect

13 Do not connect

14 Do not connect

15 Do not connect

16 Do not connect

  • Please note that when the Vout adjust is not used, pin 8 must be connected to pin 9.
  • Wide Input Voltage Range: 18V to 36V
  • 84% 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 T rends’ PT4205 series of isolated DC to DC converters advance the state-of-the-art 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 T elecom and Datacom applications requiring input- to-output isolation with board spacing down to 0.6”. The PT4205 series is offered in a unique molded through-hole or SMD-DIP package with single output voltages of 3.3V and 5V . Series (For dimensions and PC board layout, see Package Style 900.) Specifications Characteristics PT4205 SERIES (Ta = 25°C unless noted) Symbols Conditions Min Typ Max Units Output Current I o Over Vin range V o = 3.3V 0 — 1.8 A Vo = 5V 0 — 1.2 A Current Limit I cl Vin = 24V V o = 3.3V 2.0 — 3.0 A Vo = 5V 1.3 1.6 2.4 A On/Off Standby Current I in standby Vin = 24V , Pin 11 = -Vin — 0.5 — mA Short Circuit Current I sc Vin = 24V V o = 3.3V — 2.5 — A Vo = 5V — 2.0 — A Inrush Current I ir Vin = 24V @ max Io — 0.6 1.0 A tir On start-up — 1.0 2.0 mSec Input Voltage Range V in Over Io Range 18 24 36 V Output Voltage T olerance DVo Over Io Range — ±4 — %V o Idling Voltage V o Io = 0A V o = 3.3V — 3.65 4.0 V Vo = 5V — 5.6 6.0 V Ripple Rejection RR Over V in range @ 120 Hz — 60 — dB Line Regulation Reg line Over Vin range @ max Io — ±0.5 — %V o Load Regulation Reg load 10% to 100% of Io max — ±3 — %V o Vo Ripple/Noise V n Vin=24V , Io=Io max — 30 70 mV pp T ransient Response t tr 50% load change — 100 300 µSec Vo over/undershoot — 3.0 5.0 %V o Efficiency h Vin=24V , Io=1.8A, V o=3.3V — 79 — % Vin=24V , Io=1.2A, V o=5V — 84 — % Switching Frequency ƒ o Over Vin and Io 520 — 688 kHz Pin T emperature T p @ Pin 1 — — +95 °C Operating T emperature T a Vin = 24V @ max Io -40 — +85 °CFree air convection, (40-60LFM) Storage T emperature T s — -55 — +125 °C Mechanical Shock — Per Mil-STD-202F, Method 213B, —5 0—G ’ s6mS, half-sine, mounted to a PCB Mechanical Vibration — Per Mil-STD-202F , Method 204D, —1 0—G ’ s10-500Hz, mounted to a PCB Weight — — — 20 — grams Isolation — — 1500 — — VDC Flammability — Materials meet UL 94V-0 Minimum input voltage is adjustable - See application note. Standard Application PT4205 -Vin +Vin NC RC TOA +Vout -Vout NC S ync Vad j NOR

For assistance or to order, call (800) 531-5782 61 24V Bus Products DATA SHEETS Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com CHARACTERISTIC DATA PT4205, 3.3 VDC (See Note 1) PT4206 5.0 VDC (See Note 1) Efficiency vs Output Current Efficiency vs Output Current Ripple vs Output Current Ripple vs Output Current Power Dissipation vs Output Current Power Dissipation vs Output Current Efficiency (%) Output Current (Amps) Ripple (mVpp) Output Current (Amps) Efficiency (%) Output Current (Amps) Ripple (mVpp) Output Current (Amps) Output Current (Amps) Pd (Watts) Pd (Watts) Output Current (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 isolated DC-DC converter. 100 18.0V 24.0V 30.0V 36.0V Vin 36.0V 30.0V 24.0V 18.0V Vin 0.5 1.5 2.5 36.0V 30.0V 24.0V 18.0V Vin 0.2 0.4 0.6 0.8 1.2 1.4 1.6 1.8 36.0V 30.0V 24.0V 18.0V Vin 36.0V 30.0V 24.0V 18.0V Vin 100 18.0V 24.0V 30.0V 36.0V Vin PT4205 Series

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