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PT6641 Datasheet(PDF) 1 Page - Texas Instruments |
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PT6641 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 6 page  For technical support and more information, see inside back cover or visit www.ti.com/powertrends • Wide Input Voltage Range: +8V to +25V • Negative Output: –2.5V/4A to –15V/1.5A • Adjustable Output Voltage • 85% Efficiency • Remote Sense Capability 24W 12V Input Positive to Negative Voltage Converter PT6640 Series Standard Application C1 = Required 560µF electrolytic C2 = Required 330µF electrolytic PT6640 4,5,6 7,8,9,10 11,12,13 V IN COM COM -V OUT C 2 C 1 + 1 REMOTE SENSE LOAD Ordering Information PT6641 = –3.3 Volts PT6642 = –5.0 Volts PT6643 = –12.0 Volts PT6644 = –9.0 Volts PT6645 = –15.0 Volts PT6646 = –2.5 Volts PT Series Suffix (PT1234X) Case/Pin Heat Configuration Spreader Vertical Through-Hole P Horizontal Through-Hole D Horizontal Surface Mount E 1 Remote Sense 2 Do Not Connect 3 Do Not Connect 4+Vin 5+Vin 6+Vin 7 –Vout 8 –Vout 9 –Vout 10 –Vout 11 GND 12 GND 13 GND 14 Vout Adjust Pin-Out Information The PT6640 series is a positive input to negative output line of Integrated Switching Regulators (ISRs). Designed for general purpose applications, the PT6640 series deliv- ers a negative output voltage at up to 24W. The PT6640 is packaged in a 14-Pin SIP (Single In-line Package) and is available in a surface-mount configuration. Note: Back surface of product is conducting metal Pkg Style 400 SLTS037A (Revised 6/30/2000) PT6640 Specifications Characteristics PT6640 SERIES (T a = 25°C unless noted) Symbols Conditions Min Typ Max Units Output Current Io Ta = 60°C, 200 LFM, pkg P 0.1 — (See Note 2) Ta = 25°C, natural convection Vo≤ – 5.0V 0.1 — 4.0 Vo= – 9.0V 0.1 — 2.5 A Vo= – 12.0V 0.1 — 2.0 Vo= – 15.0V 0.1 — 1.5 Input Voltage Range Vin 0.1A ≤ Io ≤ Io max Vo = –2.5V/3.3V +8 — +27 Vo = – 5.0V +8 — +25 Vo = – 9.0V +8 — +21 V Vo = – 12.0V +8 — +18 Vo = – 15.0V +8 — +15 Output Voltage Tolerance ∆Vo Over Vin range Ta = -40°C to +65°C Vo-0.1 — Vo+0.1 V Output Voltage Adjust Range Voadj Pin 14 to Vo or ground Vo = – 2.5V –1.8 — –4.3 Vo = – 3.3V –2.2 — –4.7 Vo = – 5.0V –3.0 — –6.5 V Vo = – 9.0V –6.0 — –10.2 Vo = –12.0V –9.0 — –13.6 Vo = –15.0V –10.0 — –17.0 Line Regulation Regline +9V ≤Vin≤+Vinmax, Io = Iomax — ±0.5 ±1.0 %Vo Load Regulation Regload Vin = +12V, 0.1≤ Io≤Iomax — ±0.5 ±1.0 %Vo Vo Ripple/Noise Vn Vin = +12V, Io = Iomax — 3.0 — %Vo Transient Response ttr Io step between 0.5xIomax and Iomax — 200 — µSec with C2 = 330µF Vos Vo over/undershoot — 100 — mV Efficiency η Vin = +12V, Io = 0.5x Iomax Vo = – 2.5V — 75 — Vo = – 3.3V — 79 — Vo = – 5.0V — 83 — % Vo = –9.0/12.0V — 85 — Vo = –15.0V — 84 — Vin = +12V, Io = Iomax Vo = – 2.5V — 74 — Vo = – 3.3V — 77 — % Vo = – 5.0V — 80 — Vo = –9.0/12.0/15.0V — 84 — Continued |
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