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MAX1573EVKIT Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX1573EVKIT Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 4 page General Description The MAX1573 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board. The EV kit con- tains the MAX1573, a white LED driver with a high-effi- ciency charge pump. The EV kit accepts a 2.7V to 5.5V input voltage and drives up to 4 white LEDs with regu- lated constant current for uniform intensity. The MAX1573 runs at 1MHz fixed frequency, allowing tiny external components. An EV kit is available for both the UCSP and the TQFN packages. Features o Proprietary Adaptive 1x/1.5x Modes o High Efficiency (PLEDs / PBATT), Up to 92% o 2% LED Current Matching o 28mA/LED Drive Capability o Eliminates Ballast Resistor o Low 0.1µA Shutdown Current o 2.7V to 5.5V Input Voltage Range o Tiny 2.1 x 2.1 x 0.6mm UCSP Package o Surface-Mount Components o Fully Assembled and Tested MAX1573 Evaluation Kit ________________________________________________________________ Maxim Integrated Products 1 19-2894; Rev 1; 4/04 Component List For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Ordering Information Quick Start Recommended Equipment For evaluation of either EV kit: • Variable-output power supply capable of supplying up to +5.5V at 300mA Procedure The MAX1573 EV kit is fully assembled and tested. Perform the following steps to verify board operation. Do not turn on the power supply until all connec- tions are completed: 1) Verify that shunts are across pins 1 and 2 of JU1 (EN1) and JU2 (EN2). 2) Preset the power supply to 2.7V and turn off. 3) Connect the positive lead of the power supply to the VIN pad on the EV kit board. Connect the ground lead of the power supply to the GND pad directly below the VIN pad. 4) Turn on the power supply. 5) Verify that all 4 white LEDs are on with uniform intensity. PART TEMP RANGE IC PACKAGE MAX1573EVKIT 0°C to +70°C 14 UCSP 4 x 4 MAX1573TQFNEVKIT 0°C to +70°C 16 TQFN DESIGNATION QTY DESCRIPTION C1–C4 4 1µF ±10%, 6.3V X5R ceramic capacitors (0603) TDK C1608X5R0J105K D1–D4 4 Surface-mount white LEDs Nichia NSCW215T JU1, JU2 2 3-pin headers JU3 1 Not installed R1 1 7.5k Ω ±1% resistor (0603) U1 1 MAX1573EBE or MAX1573ETE None 2 Shunts None 1 MAX1573EVKIT PC board UCSP is a trademark of Maxim Integrated Products, Inc. Component Suppliers Note: Please indicate that you are using the MAX1573 when contacting these suppliers. SUPPLIER COMPONENT PHONE WEBSITE Nichia LEDs 717-285-2323 www.nichia.com Panasonic Resistors 714-373-7366 www.maco.panasonic.co.jp Taiyo Yuden Capacitors 408-573-4150 www.t-yuden.com TDK Capacitors 888-835-6646 www.component.tdk.com |
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