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SLTS074A Datasheet(PDF) 1 Page - Texas Instruments |
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SLTS074A Datasheet(HTML) 1 Page - Texas Instruments |
1 / 2 page For technical support and more information, see inside back cover or visit www.ti.com/powertrends PT78NR200 Series Standard Application C1 = Required 100µF electrolytic C2 = Required 100µF electrolytic Ordering Information PT78NR2 Pin-Out Information Pin Function 1+Vin 2-Vout 3 GND • Negative output from positive input • Wide Input Range • Self-Contained Inductor • Short Circuit Protection • Over-Temperature Protection • Fast Transient Response The PT78NR200 series creates negative output voltage from a posi- tive input voltage greater than 9V. These easy-to-use, 3-terminal, Inte- grated Switching Regulators (ISRs) have maximum output power of 10 to 12 watts and a negative output voltage that is laser trimmed. They also have excellent line and load regulation. The PT78NR200 requires 100 LFM of airflow at its maximum output current. 10-12W Plus to Minus Voltage Integrated Switching Regulator PT78NR200 + -Vout COM COM Vin 1 3 2 C2 C1 + Specifications Characteristics PT78NR200 SERIES (T a= 25°C unless noted) Symbols Conditions Min Typ Max Units Output Current Io Over Vin range Vo= -5.2V 0.1* — 2.0 A Vo= -12.0V 0.1* — 1.0 A Short Circuit Current Isc Vin=10V — 4 ×Imax — Apk Inrush Current Iir Vin=10V — 4 — A tir On start-up — 0.5 — mSec Input Voltage Range Vin 0.1 ≤ Io ≤ Imax 9— 15 V Output Voltage Tolerance ∆Vo Over Vin range — ±1.0 ±3.0 %Vo Ta= 0°C to +70°C Line Regulation Regline Over Vin range — ±0.5 ±1.0 %Vo Load Regulation Regload 0.3 ≤ Io ≤ Imax — ±0.5 ±1.0 %Vo Vo Ripple/Noise Vn Vin=10V, Io=Imax —±2 — %Vo Transient Response ttr 50% load change — 100 250 µSec (with 100µF output cap) Vo over/undershoot — 5.0 — %Vo Efficiency η Vin=9V, Io=0.5 ×Imax, Vo=-12V — 78 — % Switching Frequency ƒo Over Vin and Io ranges600 650 700 kHz Absolute Maximum Ta 100 LFM airflow 0— +85 °C Operating Temperaturte Range Over Vin and Io Ranges Recommended Operating Ta 100 LFM airflow 0 — +60** °C Temperature Range Over Vin and Io Ranges Thermal Resistance θja 100 LFM airflow — 35 — °C/W Storage Temperature Ts — -40 — +125 °C Mechanical Shock — Per Mil-STD-883D, Method 2002.3 — 500 — G’s Mechanical Vibration — Per Mil-STD-883D, Method 2007.2, —10 — G’s 20-2000 Hz, soldered in a PC board Weight — — — 11 Grams *ISR will operate down to no load with reduced specifications. **See Thermal Derating chart. Note: The PT78NR200 series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications. XX Y Output Voltage 52 = -5.2 Volts 06 = -6.0 Volts 12 = -12.0 Volts 15 = -15.0 Volts Pkg Style 600 Package Suffix H = Horizontal Mount S = Surface Mount V = Vertical Mount SLTS074A (Revised 6/30/2000) (For dimensions and PC board layout, see Package Styles 600 and 610.) |
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