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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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SLTS092B 데이터시트(PDF) 2 Page - Texas Instruments |
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SLTS092B 데이터시트(HTML) 2 Page - Texas Instruments |
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2 / 9 page  For technical support and more information, see inside back cover or visit www.ti.com PT4120 Series 20-W 48-V Input Isolated DC/DC Converter Specifications (Unless otherwise stated, Ta =25°C, Vin =48V, Cout =0µF, and Io =Iomax) PT4120 SERIES Characteristic Symbol Conditions Min Typ Max Units Output Current Io Over Vin range Vo = 15V 0.1 (1) — 1.3 Vo = 12V 0.1 (1) — 1.6 A Vo =5.0V 0.1 (1) — 4.0 Vo ≤ 3.3V 0.1 (1) — 5.0 Input Voltage Range Vin Over Io Range 36.0 48.0 75.0 VDC Set Point Voltage Tolerance Vo tol Vo≥5.0V — ±1 ±1.5 %Vo Vo≤3.3V — — ±50 mV Temperature Variation Regtemp –40° ≤Ta ≤ +85°C — ±0.5 — %Vo Line Regulation Regline Over Vin range Vo≥5.0V — ±0.2 ±1.0 %Vo Vo≤3.3V — ±7 ±33 mV Load Regulation Regload Over Io range Vo ≥5.0V — ±0.4 ±1.0 %Vo Vo≤3.3V — ±13 ±33 mV Total Output Voltage Variation ∆Votot Includes set-point, line load, Vo≥5.0V — ±2 — %Vo –40° ≤Ta ≤ +85°C Vo≤3.3V — ±67 — mV Efficiency η Vo = 15V — 86 — Vo = 12V — 83 — Vo =5.0V — 82 — % Vo =3.3V — 78 — Vo =1.8V — 67 — Vo Ripple (pk-pk) Vr 20MHz bandwidth Vo ≥ 5.0V — 0.5 — %Vo Vo ≤ 3.3V — 15 — mVpp Transient Response ttr 0.1A/µs, load step 50% to 100% Iomax — 100 — µs ∆Vtr Vo over/undershoot Vo ≥ 5.0V — ±3.0 — %Vo Vo ≤ 3.3V — ±150 — mV Short Circuit Current Isc — 2xIomax — A Switching Frequency ƒs Over Vin range Vo≥ 12.0V 600 650 700 kHz Vo ≤ 5.2V 800 850 900 Under-Voltage Lockout UVLO — 31 — V Remote On/Off (Pin 1) Referenced to –Vin (pin 2) Input High Voltage VIH 2.5 — 7.0 (2) V Input Low Voltage VIL –0.2 — +0.8 Input Low Current IIL — –10 – µA Standby Input Current Iin standby pins 1 & 2 connected — 7 50 mA Internal Input Capacitance Cin — 0.5 — µF External Output Capacitance Cout Between +Vo and –Vo 0 — 200 µF Isolation Voltage Input to output 1500 — — V Capacitance — 1100 — pF Resistance 10 ——M Ω Operating Temperature Range Ta Over Vin range -40 — +85 (3) °C Storage Temperature Ts — -40 — +125 °C Reliability MTBF Per Bellcore TR-332 4.0 — — 106 Hrs 50% stress, Ta =40°C, ground benign Mechanical Shock — Per Mil-Std-883D, method 2002.3, — 500 — G’s 1mS, half-sine, mounted to a fixture Mechanical Vibration — Per Mil-Std-883D, method 2007.2, — 15 — G’s 20-2000Hz, soldered in a PC board Weight — — — 23 — grams Flammability — Materials meet UL 94V-0 Notes: (1) The DC/DC converter will operate at no load with reduced specifications. (2) The Remote On/Off (pin 1) has an internal pull-up, and if it is left open circuit the PT4120 will operate when input power is applied. Refer to the application notes for interface considerations. (3) See Safe Operating Area curves or contact the factory for the appropriate derating. |
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