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PT4486A Datasheet(PDF) 1 Page - Texas Instruments |
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PT4486A Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 9 page  For technical support and further information, visit http://power.ti.com Standard Application Features • 36 V to 75 V Input Voltage Range • Programmable Output Voltage Range: 6.5 V to 17.5 V • -40° to +85°C Operating Temp • 1500 VDC Isolation • 89% Efficiency • On/Off Inhibit • Differential Remote Sense • 17 A Output with PT4497 SLTS121C – SEPTEMBER 2000 – REVISED OCTOBER 2004 Description The PT4486 Excalibur™ DC/DC converter module combines state-of-the- art power conversion technology with un-paralleled flexibility. Incorporating high efficiency and ultra-fast transient response, these modules provide up to 8.5 A of output current over the program- mable voltage range of 6.5 V to 17.5 V. The modules include a number of inbuilt features to facilitate system integration. These include a foldback output current limit, over-temperature protection, and an inhibit on/off control. A differential remote sense is also provided to compensate for voltage drop between the converter and load. For additional output current, one PT4486 may be operated with up to two PT4497 compatible booster modules. Each PT4497 adds an additional 8.5A of output current capability. • Over-Current Protection • Over-Temperature Protection • Over-Voltage Protection • Space-Saving Package • Solderable Copper Case • Safety Approvals: UL 60950 CSA 22.2 950 VDE EN60950 L O A D PT4486 +V sns +V out -V out -V sns 7 8-13 14-19 20 25 22 24 23 VID0 - VID4 +V in –V in 1 2 3 Inhibit C 1 + PROGRAMMING PINS +V OUT +V IN –V IN –V OUT C o + 21 C 2 •Co = Optional 33-µF electrolytic capacitor •C1 = Optional 33-µF, 100-V electrolytic capacitor •C2 = Optional 1-µF, 100-V ceramic capacitor • Programming pins, VID0–VID4, are shown configured for Vo =12 V • For normal operation, pin 3 (Inhibit) must be connected to –Vin. Ordering Information PT4486 ❏ ❏ ❏ ❏ ❏ = 6.5 to 17.5 Volts PT4497 ❏ ❏ ❏ ❏ ❏ = 8.5-A Booster PT Series Suffix (PT1234 x ) Case/Pin Order Package Configuration Suffix Code * Vertical N (EKD) Horizontal A (EKA) SMD C (EKC) * Previously known as package styles 1200, 1210, and 1215. (Reference the applicable package code draw- ing for the dimensions and PC board layout) Pin-Out Information Pin Function 1+Vin 2–Vin 3 Inhibit 4Vr † 5Va † 6 Do not connect 7 (+)Remote Sense 8+Vout 9+Vout 10 +Vout 11 +Vout 12 +Vout 13 +Vout Pin Function 14 –Vout 15 –Vout 16 –Vout 17 –Vout 18 –Vout 19 –Vout 20 (–)Remote Sense 21 VID0 22 VID1 23 VID2 24 VID3 25 VID4 26 DRV † PT4486—48V 100-W 8.5-A Programmable Isolated DC/DC Converter † Pins 4, 5, & 26 are used for booster applications. For stand-alone operation, leave open circuit. • Shaded functions indicate those pins that are referenced to primary-side potential. |
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