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PT6342A Datasheet(PDF) 2 Page - Texas Instruments |
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PT6342A Datasheet(HTML) 2 Page - Texas Instruments |
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2 / 11 page  For technical support and more information, see inside back cover or visit www.ti.com PT6340 Series 6-A 12-V Input Adjustable Integrated Switching Regulator Specifications (Unless otherwise stated, Ta =25°C, Vin =12V, Cin =100µF, Cout =330µF, and Io =Iomax) PT6340 SERIES Characteristic Symbol Conditions Min Typ Max Units Output Current Io Ta =+60°C, 200LFM 0.1 (1) —6 A Ta =+25°C, natural convection 0.1 (1) —6 Input Voltage Range Vin Over Io Range 10.8 — 13.2 VDC Set Point Voltage Tolerance Vo tol — ±1±2%Vo Temperature Variation Regtemp –40° ≤Ta≤ +85°C, Io =Iomin — ±0.5 — %Vo Line Regulation Regline Over Vin range — ±5 ±10 mV Load Regulation Regload Over Io range — ±5 ±15 mV Total Output Voltage Variation ∆Votot Includes set-point, line, load, — ±2±3%Vo –40° ≤Ta ≤ +85°C Efficiency η Io =4A Vo =5.0V — 93 — Vo =3.3V — 92 — Vo =2.5V — 91 — % Vo =1.8V — 89 — Vo =1.5V — 87 — Vo =1.2V — 85 — Vo Ripple (pk-pk) Vr 20MHz bandwidth — 20 — mVpp Transient Response ttr 1A/µs load step, 50% to 100% Iomax— 50 — µs ∆Vtr Vo over/undershoot — ±60 — mV Short Circuit Threshold Isc threshold — 8.5 — A Switching Frequency ƒs Over Vin and Io range 300 350 400 kHz Inhibit (Pin 1) Referenced to GND (pin 5) High-Level Input Voltage VIH Vin–0.5 — Open (2) V Low-Level Input Voltage VIL –0.2 — +0.5 Low-Level Input Current IIL — –0.5 – mA Standby Input Current Iin standby pins 1 & 5 connected — +0.5 — mA External Output Capacitance Cout See application schematic 330 — 1,000 µF External Input Capacitance Cin See application schematic 100 — — µF Operating Temperature Range Ta Over Vin range –40 (3) — +85 (4) °C Storage Temperature Ts — –40 — +125 °C Reliability MTBF Per Bellcore TR-332 8.8 — — 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 — Mil-Std-883D, Method 2007.2, — 20 (5) — G’s 20-2000Hz, soldered in PCB Weight — — 23 — grams Flammability — Materials meet UL 94V-0 Notes: (1) The ISR will operate at no load with reduced specifications. (2) The Inhibit control (pin 1) has an internal pull-up and if it is left open circuit the module will operate when input power is applied. The open-circuit voltage is the input voltage Vin. Use a discrete MOSFET to control the Inhibit pin, and ensure a transitioin time of less than ≤10µs. Consult the related application note for other interface considerations. (3) For operation below 0°C, Cin and Cout must have stable characteristics. Use either low ESR tantalum or Oscon® capacitors. (4) See Safe Operating Area curves or contact the factory for the appropriate derating. (5) The case pins on through-hole package types (suffixes N & A) must be soldered. For more information consult the applicable package outline drawing. Input/Output Capacitors: The PT6340 regulator series requires a 100µF electrolytic (or tantalum) capacitor at the input and 330µF at the output for proper operation in all applications. In addition, the input capacitance, Cin, must be rated for a minimum of 740mArms of ripple current, and the ESR of the output capacitor, Cout, must less than 50mΩ @100kHz. For transient or dynamic load applications additional output capacitance may be necessary. For more information consult the related application note on capacitor recommendations. |
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