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PT4206 Datasheet(PDF) 1 Page - Texas Instruments |
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PT4206 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 4 page For technical support and more information, see inside back cover or visit www.ti.com PT4205 Series 3-7 Watt 24V-Input Isolated DC/DC Converter Ordering Information Through-Hole 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 1Vout 2Vout return 3 Do not connect 4 Do not connect 5 Do not connect 6 Do not connect 7 Sync input 8* Vadj 9* Nominal output voltage resistor 10 Turn-on/off input voltage adjust 11 Remote on/off 12 Do not connect 13 Do not connect 14 Do not connect 15 Do not connect 16 Do not connect 17 +Vin 18 -Vin * Please note that when the Vadj 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 The PT4205 series of isolated DC/DC converters employ high switching frequen- cies, 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 isola- tion 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. (For dimensions and PC board layout, see Package Style 900.) Package (Top View) PT4205 18 17 16 15 14 13 12 11 10 1 2 3 4 5 6 7 8 9 -Vin +Vin NC RC TOA +Vout -Vout NC Sync Vadj NOR SLTS022B (Revised 1/3/2002) Specifications Characteristics PT4205 SERIES (T a = 25°C unless noted) Symbols Conditions Min Typ Max Units Output Current Io Over Vin range Vo = 3.3V 0 — 1.8 A Vo = 5V 0 — 1.2 A Current Limit Icl Vin = 24V Vo = 3.3V 2.0 — 3.0 A Vo = 5V 1.3 1.6 2.4 A On/Off Standby Current Iin standby Vin = 24V, Pin 11 = -Vin — 0.5 — mA Short Circuit Current Isc Vin = 24V Vo = 3.3V — 2.5 — A Vo = 5V — 2.0 — A Inrush Current Iir Vin = 24V @ max Io — 0.6 1.0 A tir On start-up — 1.0 2.0 mSec Input Voltage Range Vin Over Io Range 18 (1) 24 36 V Output Voltage Tolerance ∆Vo Over Io Range — ±4 — %Vo Idling Voltage Vo Io = 0A Vo = 3.3V — 3.65 4.0 V Vo = 5V — 5.6 6.0 V Ripple Rejection RR Over Vin range @ 120 Hz — 60 — dB Line Regulation Regline Over Vin range @ max Io — ±0.5 — %Vo Load Regulation Regload 10% to 100% of Io max — ±3 — %Vo Vo Ripple/Noise Vn Vin=24V, Io=Io max — 3070mVpp Transient Response ttr 50% load change — 100 300 µSec Vo over/undershoot — 3.0 5.0 %Vo Efficiency η Vin=24V, Io=1.8A, Vo=3.3V — 79 — % Vin=24V, Io=1.2A, Vo=5V — 84 — % Switching Frequency ƒo Over Vin and Io 520 — 688 kHz Pin Temperature Tp @ Pin 1 — — +95 °C Operating Temperature Ta Vin = 24V @ max Io -40 — +85 °C Free air convection, (40-60LFM) Storage Temperature Ts — -55 — +125 °C Mechanical Shock — Per Mil-STD-202F, Method 213B, —50 — G’s 6mS, half-sine, mounted to a PCB Mechanical Vibration — Per Mil-STD-202F, Method 204D, —10 — G’s 10-500Hz, mounted to a PCB Weight — — — 20 — grams Isolation — — 1500 — — VDC Flammability — Materials meet UL 94V-0 Notes (1) The minimum input voltage is adjustable. See the specific application note on the PT4200/4205/4300 Series. |
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