RYC9901 Tyco Electronics, RYC9901 Datasheet
RYC9901
Specifications of RYC9901
Related parts for RYC9901
RYC9901 Summary of contents
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... IC specifically designed for driving multi- LED arrays. It can be operated from a single Lithium cell or two alkaline cells, and drives LEDs. All LEDs are in series, and the RYC9901 device regulates at constant current, yielding uniform illumination. The RYC9901 device features an active low enable/ dimming pin and thermal protection, and is available in a space-saving SOT- 23-6 package ...
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... RYC9901 Multi-LED Boost ORDERING INFORMATION Part Description Part Number RYC9901 E67308-000 MATERIALS INFORMATION ROHS Compliant PIN CONFIGURATION GND 2 5 PGND 3 4 PIN DESCRIPTION Pin Number Pin Name Pin Function Feedback: This pin is the feedback to the PWM to control the output current. Attach ...
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... RYC9901 Multi-LED Boost ABSOLUTE MAXIMUM RATINGS Parameter VCC to GND Lx to GND All Other Pins to GND Continuous Power Dissipation (70°C) (Derate 5.9mW/°C above 70°C) Ambient operating temperature Storage temperature Max lead temperature during soldering (5 sec.) Note 1. Operation beyond absolute maximum rating or improper use may result in permanent damage to the device. ...
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... RYC9901 Multi-LED Boost TYPICAL CHARACTERISTICS Switching Waveforms, Pout = 1W LX 10V/Div IL 1A/Div 5 sec/Div LED Current vs. Modulation Duty Cycle (%) Tyco Electronics Corporation 308 Constitution Drive, Menlo Park, CA 94025 Tel: (800) 227-4856 Fax: (800) 227-4866 © 2005 Tyco Electronics Corporation. F PWM = 1KHz Raychem Power Management ICs www ...
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... RYC9901 Multi-LED Boost TYPICAL CHARACTERISTICS (CONT) Frequency Normalized at 25°C 1.2 1.15 1.1 1.05 1 0.95 0.9 0.85 0 Junction Temperature (ºC) Supply Current Normalized at 25°C 1.4 1.3 1.2 1.1 1 0.9 0.8 0.7 0.6 -55 -35 - Junction Temperature (ºC) Tyco Electronics Corporation 308 Constitution Drive, Menlo Park, CA 94025 Tel: (800) 227-4856 Fax: (800) 227-4866 © ...
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... Duty Cycle (%) APPLICATION CIRCUIT Tyco Electronics Corporation 308 Constitution Drive, Menlo Park, CA 94025 Tel: (800) 227-4856 Fax: (800) 227-4866 © 2005 Tyco Electronics Corporation RYC9901 ENABLE U1 Figure X Application Circuit for Two LEDs Raychem Power Management ICs www.tycopowercomponents.com Document: SCD 25493 Status: Released Rev ...
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... Fairchild D2-3 MV8W00 R1 Any Coiltronics L1 SD12-220 Raychem U1 RYC9901 Tyco Electronics Corporation 308 Constitution Drive, Menlo Park, CA 94025 Tel: (800) 227-4856 Fax: (800) 227-4866 © 2005 Tyco Electronics Corporation. Quantity Description 1 2.2µF, Ceramic Cap 1 1µF, Ceramic Cap 1 400mA, 40V Schottky ...
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... IC specifically designed for driving multi-LED arrays. It can be operated from a single Lithium cell or two alkaline cells, and drives LEDs. All LEDs are in series, and the RYC9901 device regulates at constant current, yielding uniform illumination. The RYC9901 device features an active low enable pin ...
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... Operation with a High or Low Input Voltage If the power source available is outside the recommended operating range of the IC, the RYC9901 device can still be used to drive LEDs this, the power source may be connected to the inductor, while the VCC pin needs to receive a small amount of current within its operating range. ...
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... Open String If the output of the RYC9901 device is open, as might happen if the LED string fails open, the energy stored in the inductor each cycle is dissipated in the power Tyco Electronics Corporation 308 Constitution Drive, Menlo Park, CA 94025 Tel: (800) 227-4856 Fax: (800) 227-4866 © ...
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... RYC9901 Multi-LED Boost PACKAGE INFORMATION 6 Pin SOT-23 PACKAGE NOTES: 1. Dimensions and tolerance per ANSI Y14.5M-1982. 2. Dimensions A and B are datums and datum surface. 3. Controlling dimensions: Millimeters 4. Dimension A and B do not include mold flash. Mold flash shall not exceed 0.15mm [0.006] per side. ...
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... RYC9901 Multi-LED Boost Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of each product for their applications. Tyco Electronics Corporation assumes no responsibility for the use of its product or for any infringement of patents or other rights of third parties resulting from the use of its product. No license is granted by implication or otherwise under any patent or proprietary right of Tyco Electronics except the right to use such product for the purpose for which it is sold. Tyco Electronics reserves the right to change or update, without notice, any information contained in this publication ...