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PT3341A Datasheet(PDF) 2 Page - Texas Instruments |
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PT3341A Datasheet(HTML) 2 Page - Texas Instruments |
2 / 11 page For technical support and more information, see inside back cover or visit www.ti.com PT3340 Series 30-W 24/48-V Input Isolated DC/DC Converter Specifications (Unless otherwise stated, Ta =25°C, Vin =24V, Cout =330µF, and Io =Iomax) PT3340 SERIES Characteristic Symbol Conditions Min Typ Max Units Output Current Io Over Vin range Vo = 15V 0.1 (1) — 2.0 Vo = 12V 0.1 (1) — 2.5 A Vo =5.0V 0.25 (1) — 6.0 Vo ≤ 3.3V 0.25 (1) — 8.0 Input Voltage Range Vin Over Io Range 18.0 24.0 60.0 V Set Point Voltage Tolerance Vo tol Vo≥5.0V — ±1 ±1.5 %Vo Vo≤3.3V — ±33 ±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 — 85 — Vo = 12V — 86 — % Vo =5.0V — 83 — Vo =3.3V — 80 — Vo Ripple (pk-pk) Vr 20MHz bandwidth Vo ≥ 5.0V — 1.0 2.0 %Vo Vo ≤ 3.3V — 50 75 mVpp Transient Response ttr 0.1A/µs load step, 50% to 100% Iomax — 100 200 µs ∆Vtr Vo over/undershoot Vo ≥ 5.0V — ±3.0 ±5.0 %Vo Vo ≤ 3.3V — ±100 ±150 mV Short Circuit Current Isc — 2xIomax — A Switching Frequency ƒs Over Vin range Vo>10V 450 500 550 kHz Vo <10V 700 750 800 Under-Voltage Lockout UVLO Vin increasing — 17 — V Vin decreasing — 16 — Remote On/Off Input (pin 2) Referenced to –Vin (pins 4–6) Input High Voltage VIH 2.5 — 15 (2) V Input Low Voltage VIL –0.2 — +0.8 Input Low Current IIL –3 –6 –10 µA Standby Input Current Iin standby pins 2 & 4 connected — 8 16 mA Internal Input Capacitance Cin — 0.66 — µF External Output Capacitance Cout Between +Vo and –Vo Vo ≥ 9V 260 330 600 (3) µF Vo ≤ 5V 260 330 1,000 (3) Isolation Voltage Input-output/input-case 1500 — — Vdc Capacitance Input-output — 1200 — pF Resistance Input-output 10 — — M Ω Operating Temperature Range Ta Over Vin range -40 (4) — +85 (5) °C Maximum Case Temperature Tc — — 100 °C Storage Temperature Range Ts — -40 — +125 °C Reliability MTBF Per Bellcore TR-332 5.0 — — 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, — 10 — G’s 20-2000Hz, soldered to board Weight — — — 43 — 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 input has an internal pull-up. If it is left open circuit the module will operate when input power is applied. A low-leakage (<100nA) MOSFET is recommended to control this input. The open-circuit voltage is less than 10V. See application notes for interface considerations. (3) Output capacitor values are absolute. Allowances must be made for any additional de-coupling capacitors and the total external capacitor tolerance. The value of external capacitance is limited due to regulator startup current requirements. Consult the factory for further details. (4) For operation below 0°C, the required external output capacitor must have temperature stable characteristics. E.g. Tantalum or Oscon® types. (5) See Safe Operating Area curves or contact the factory for the appropriate thermal derating. |
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