LTC3490EDD#PBF Linear Technology, LTC3490EDD#PBF Datasheet
LTC3490EDD#PBF
Specifications of LTC3490EDD#PBF
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LTC3490EDD#PBF Summary of contents
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... LTC3490 when the battery voltage drops below 0.85V/cell. The feedback loop is internally compensated to minimize com- ponent count. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. 100 350mA 4.7µ ...
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LTC3490 ABSOLUTE AXI U RATI GS Supply Voltage (V ) ................................... – 0. Input Voltages (CTRL/SHDN, CELLS) ......... – 0. Output Voltages (CAP, LED, SW) ................ – 0. PACKAGE/ORDER ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are T SYMBOL PARAMETER I Leakage Current, PMOS Switch L(PMOS) R On-Resistance, PMOS Switch ON(PMOS) V Input High (CELLS) IH Input High (SHDN) V Input Low (CELLS) IL Input Low (SHDN) I Input Current ...
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LTC3490 W U TYPICAL PERFOR A CE CHARACTERISTICS LED LED 360 V = 2.4V IN 358 356 354 352 350 348 346 344 342 340 2.8 3 3.2 3.4 V (V) LED ...
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CTIO AL DIAGRA START-UP – CTRL/ SHDN + 8 CELLS – P BODY CONTROL + GATE CONTROL AND DRIVERS SENSE AMP LIMIT PWM OVERVOLTAGE LOGIC DETECT OSCILLATOR DIMMING AMP I ...
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LTC3490 U OPERATIO The LTC3490 is a high efficiency, constant current source for 1W high intensity white LEDs. These high intensity LEDs require a fixed current of 350mA with a voltage compliance of 2.8V to 4V. The LTC3490 operates with ...
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U U APPLICATIO S I FOR ATIO The LTC3490 requires only four external components to operate: an inductor, an output capacitor, a switch and a pull-down resistor. The inductor is nominally set at 3.3µH and the capacitor at 4.7µF. Optional ...
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LTC3490 U U APPLICATIO S I FOR ATIO The output ripple voltage has two primary components. The first is due to the value of the capacitor and is given by: I • V LPK CAP C V ...
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U U APPLICATIO S I FOR ATIO Red Luxeon LEDs The red, red-orange and amber Luxeon LEDs have a lower forward voltage than the white, blue and green LEDs. Since the LTC3490 internal circuitry is powered from the output, it ...
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LTC3490 U TYPICAL APPLICATIO S 1 NiMH OR ALKALINE CELL 1 NiMH OR ALKALINE CELL 10 Luxeon Red LED Driver Without Dimming 3.3µH ON/OFF CAP LTC3490 + CTRL/SHDN LED CELLS LOBAT 1M GND Luxeon Red LED Driver ...
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... MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
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... Dual Constant Current, 2MHz, High Efficiency White LED Boost Regulator with Integrated Schottky Diode LT3479 3A, Full-Featured DC/DC Converter with Soft-Start and Inrush Current Protection ThinSOT is a trademark of Linear Technology Corporation. Linear Technology Corporation 12 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● ...