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PT6526D Datasheet(PDF) 2 Page - Texas Instruments |
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PT6526D Datasheet(HTML) 2 Page - Texas Instruments |
2 / 12 page For technical support and more information, see inside back cover or visit www.ti.com PT6520 Series 8-A 5-V/3.3-V Input Adjustable ISR with Short-Circuit protection Specifications (Unless otherwise stated, Ta =25°C, Vin =5V, Cin =330µF, Cout =330µF, and Io =Iomax) PT6520 SERIES Characteristic Symbol Conditions Min Typ Max Units Output Current Io Over Vin range 0.1 (1) — 8.0 A Input Voltage Range Vin Over Io Range Vo =3.3V 4.5 — 5.5 VDC Vo≤2.5V 3.1 — 5.5 Set Point Voltage Tolerance Vo tol — ±1 ±1.5 %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 ±10 mV Total Output Voltage Variation ∆Votot Includes set-point, line, load, — ±2±3%Vo –40° ≤Ta ≤ +85°C Efficiency η Io =3.0A Vo =3.3V — 92 — Vo =2.5V — 88 — Vo =2.1V — 85 — % Vo =1.8V — 82 — Vo =1.5V — 80 — Vo =1.2V — 75 — Io =8.0A Vo =3.3V — 89 — Vo =2.5V — 85 — Vo =2.1V — 82 — % Vo =1.8V — 78 — Vo =1.5V — 75 — Vo =1.2V — 71 — Vo Ripple (pk-pk) Vr 20MHz bandwidth — 35 — mVpp Transient Response ttr 1A/µs load step, 50% to 100% Iomax — 50 — µs ∆Vtr Vo over/undershoot — ±70 — mV Short Circuit Threshold Isc threshold — 12 22.5 A Switching Frequency ƒs Over Vin and Io range 300 350 400 kHz Remote On/Off (Pin 1) Referenced to –Vin (pin 7) Input High Voltage VIH — — Open (2) V Input Low Voltage VIL –0.1 — +0.4 Input Low Current IIL — –0.5 – mA Standby Input Current Iin standby pins 3 & 7 connected — 15 25 mA External Output Capacitance Cout See application schematic 330 — 5,000 µF External Input Capacitance Cin See application schematic 330 — — µF Operating Temperature Range Ta Over Vin range -40 — +85 (3) °C Storage Temperature Ts — -40 — +125 °C Reliability MTBF Per Bellcore TR-332 6.3 — — 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 — Suffixes P, D, & E— 7.5 — G’s Mil-Std-883D, 20-2000Hz Suffixes L & M — TBD (4) — Weight — Suffixes P, D, & E— 12.5 — Suffixes R, G & B — 16.5 — grams Suffixes L & M — 15.25 — Suffixes Q & F — 22 — Flammability — Materials meet UL 94V-0 Notes: (1) The ISR will operate at no load with reduced specifications. (2) The STBY* control (pin 3) 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 typically 12.6V, and maybe as high as 15V. Refer to the application notes for other interface considerations. (3) See Safe Operating Area curves or contact the factory for the appropriate derating. (4) The tab pins on the 16-pin mount package types (suffixes L & M) must be soldered. For more information see the applicable package outline drawing. Input/Output Capacitors: The PT6520 series requires a 330µF capacitor at both the input and output for proper operation in all applications. In addition, the input capacitance (Cin) must be rated for a minimum of 1.2Arms ripple current rating. For transient or dynamic load applications, additional output capacitance (Cout) may be necessary. The maximum allowable output capacitance is 5,000µF. For more information consult the related application note on capacitor recommendations. |
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