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PT7615 Datasheet(PDF) 2 Page - Texas Instruments |
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PT7615 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 7 page For technical support and more information, see inside back cover or visit www.ti.com 20-A Programmable SIP Family Input Adjust Output Product Voltage Description Method Range PT7709 5V VID 5-Bit 1.3V– 3.5V PT7708 3.3V VID 4-Bit 1.3V– 2.05V PT7615 5V VID 5-Bit 1.075V–1.85V PT7742 3.3V Booster — — PT7743 5V Booster — — PT7615—5V 20-A Low-Voltage Programmable Integrated Switching Regulator Programming Information VID4=1 VID4=0 VID3 VID2 VID1 VID0 Vout Vout 1111 1.075V 1.475V 1110 1.100V 1.500V 1101 1.125V 1.525V 1100 1.150V 1.550V 1011 1.175V 1.575V 1010 1.200V 1.600V 1001 1.225V 1.625V 1000 1.250V 1.650V 0111 1.275V 1.675V 0110 1.300V 1.700V 0101 1.325V 1.725V 0100 1.350V 1.750V 0011 1.375V 1.775V 0010 1.400V 1.800V 0001 1.425V 1.825V 0000 1.450V 1.850V Logic 0 = Pin 12 potential (Rem Sense Gnd) Logic 1 = Open circuit (no pull-up resistors) VID4 may not be changed while the unit is operating. Specifications (Unless otherwise stated, Ta =25°C, Vin =5V, Cin =1,500µF, Cout =330µF, and Io =Iomax) PT7615 Characteristics Symbols Conditions Min Typ Max Units Output Current Io Ta = +60°C, 200 LFM, pkg N 0.1 (1) —20 A Ta = +25°C, natural convection 0.1 (1) —20 Input Voltage Range Vin Over Io range 4.5 — 5.5 V Set-Point Voltage Tolerance Vo tol — ±10 ±25 (2) mV Temperature Variation Regtemp –40°C ≤Ta ≤ +85°C — ±1.5 — %Vo Line Regulation Regline Over Vin range — ±5 ±10 mV Load Regulation Regload Over Io range — ±5 ±10 mV Total Output Voltage Variation ∆Vo tol Set-point, line, load — ±2±3%Vo –40°C ≤Ta ≤ +85°C Efficiency η Io = 10A Vo = 1.8V — 87 — Vo = 1.5V — 84 — % Vo = 1.2V — 81 — Io = 20A Vo = 1.8V — 82 — Vo = 1.5V — 79 — % Vo = 1.2V — 75 — Vo Ripple (pk-pk) Vr 20MHz bandwidth — 40 — mVpp Transient Response ttr 1A/µs load step, 10A and 20A — 50 — µSec Vos Vo over/undershoot — ±100 — mV Short Circuit Threshold Isc (pk) — 32 — A Switching Frequency ƒs Over Vin range 300 350 400 kHz STBY* Input Requirements Referenced to GND Input High Voltage VIH 2.0 — Open (3) V Input Low Voltage VIL -0.2 — 0.8 Input Low Current IIL Pin 5 to GND — 0.3 — mA Standby Input Current Iin standby Pin 5 to GND — 30 — mA External Capacitance Cout 330 (4) — 15,000 µF Operating Temperature Range Ta Over Vin Range –40 — +85 (5) °C Storage Temperature Ts — -40 — +125 °C Mechanical Shock Per Mil-STD-883D, Method 2002.3 1 msec, Half Sine, mounted to a fixture — 500 — G’s Mechanical Vibration Per Mil-STD-883D, Method 2007.2, — 10 — G’s 20-2000 Hz, Soldered in a PC board Weight — Vertical/Horizontal — 36 — grams Flammability — Materials meet UL 94V-0 Notes: (1) ISR-will operate down to no load with reduced specifications. (2) If the remote sense is not used, pin 12 must be connected to pin 13 for optimum output voltage accuracy. (3) The STBY* control (pin 5) has an internal pull-up. If it is left open-circuit, the module will operate when input power is applied. A low-leakage (<1µA) MOSFET must be used to control this pin. The open-circuit voltage may be as high as Vin. (4) For operation below 0°C, Cin and Cout must have stable characteristics. Use either low ESR tantalum or Oscon® capacitors. (5) See safe Operating Area curves or consult factory for the appropriate derating. External Capacitors: The PT7615 require a minimum output capacitance of 330µF for proper operation. The PT7615 also requires an input capacitance of 1500µF, which must be rated for a minimum of 1.4Arms of ripple current. For transient or dynamic load applications, additional capacitance may be required. For further information refer to the application note regarding capacitor selection for this product. Input Filter: An input filter inductor is optional for most applications. The inductor must be sized to handle 10ADC with a typical value of 1µH. |
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