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MAX16822BEVKIT Arkusz danych(PDF) 1 Page - Maxim Integrated Products |
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MAX16822BEVKIT Arkusz danych(HTML) 1 Page - Maxim Integrated Products |
1 / 6 page General Description The MAX16822B evaluation kit (EV kit) demonstrates the MAX16822B hysteretic current-mode high-bright- ness LED (HBLED) driver IC. The MAX16822B EV kit is configured as a step-down topology with a constant- current HBLED driver circuit for external HBLEDs. The MAX16822B EV kit operates from a DC supply voltage of 6V to 65V and is configured to deliver up to 350mA of current to user-supplied HBLEDs. The output voltage for the HBLED string can go up to 64V and depends upon the EV kit’s input voltage. The MAX16822B EV kit can be configured for digital pulse-width modulation (PWM) dimming operation using a digital PWM input signal to control the HBLEDs’ brightness. The MAX16822B has an undervoltage lock- out (UVLO) feature that disables the EV kit at low input voltage. The EV kit circuit also features a thermal fold- back and temperature simulation circuit feature. The MAX16822B EV kit is a fully assembled and tested sur- face-mount board. The MAX16822B EV kit can also evaluate the MAX16822A, or for higher currents, a MAX16832 IC. Warning: Voltages exceeding 42V may exist on the LED+ and LED- output pads. Features o 6V to 65V Wide Supply Voltage Range o 333mA LED Current o Digital PWM Dimming Control o Analog Dimming Control o Thermal Foldback and Temperature Simulation Circuit o Evaluates MAX16822A (IC Replacement Required) o Fully Assembled and Tested MAX16822B Evaluation Kit ________________________________________________________________ Maxim Integrated Products 1 19-4211; Rev 0; 7/08 Component List For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Ordering Information DESIGNATION QTY DESCRIPTION C1 1 1µF ±10%, 100V X7R ceramic capacitor (1210) Murata GRM32CR72A105K C2 1 0.01µF ±10%, 50V X7R ceramic capacitor (0603) Murata GRM188R71H103K C3 0 Not installed, ceramic capacitor (1210) D1 1 100V, 1A Schottky rectifier diode (SMB) Central Semiconductor CMSH1-100 (Top Mark: CS100) JU1, JU2 2 2-pin headers L1 1 220µH, 0.720A inductor Coilcraft MSS1038-224KL DESIGNATION QTY DESCRIPTION R1 1 0.600 Ω ±1%, 0.5W sense resistor (1206) IRC LRC-LRF1206LF-01-R600-F R2 1 100k Ω ±10% potentiometer R3 1 20k Ω ±5% resistor (0805) R4 1 100k Ω ±5% resistor (0805) TP1 1 PC mini red test point TP2 1 PC mini black test point U1 1 Step-down HBLED driver (8 SO) Maxim MAX16822BASA+ — 2 Shunts (JU1, JU2) — 1 PCB: MAX16822B Evaluation Kit+ PART TYPE MAX16822BEVKIT+ EV Kit + Denotes lead-free and RoHS compliant. |
Podobny numer części - MAX16822BEVKIT |
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Podobny opis - MAX16822BEVKIT |
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