1MHz, High-Efficiency, Step-Up Converter for 2 to 8 White LEDs CXSU63169A/B/C is a current-mode and fixed frequency boost converter with an integrated N-FET to drive up to 8 white LEDs in series.

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The CXSU63169A/B/C is a current-mode and fixed frequency boost converter with an integrated N-FET to drive up to 8 white LEDs in series. The series connection allows the LED current to be identical for uniform brightness. Its low on-resistance of NFET and feedback voltage reduce power loss and achieve high efficiency. Fast 1MHz current-mode PWM operation is available for input and output capacitors and a small inductor while minimizing ripple on the input supply. The OVP pin monitors the output voltage and stops switching if exceeds the over-voltage threshold. An internal softstart circuit eliminates the inrush current during start-up. The CXSU63169A/B/C also integrates under-voltage lockout, over-temperature protection, and current-limit circuits. The CXSU63169/A/B/C is available in a SOT-23-6 packages.

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z Wide Input Voltage from 2.7V to 6V Sjd嘉泰姆

z 0.25V Reference Voltage Sjd嘉泰姆

z Fixed 1MHz Switching Frequency Sjd嘉泰姆

z High Efficiency up to 87% Sjd嘉泰姆

z 100Hz to 100kHz PWM Brightness Control Frequency Sjd嘉泰姆

z Open‐LED Protection Sjd嘉泰姆

z Under‐Voltage Lockout Protection Sjd嘉泰姆

z Over‐Temperature Protection Sjd嘉泰姆

z <1mA Quiescent Current Dduring Shutdown Sjd嘉泰姆

z SOT‐23‐6 Packages Sjd嘉泰姆

z Lead Free and Green Devices Available Sjd嘉泰姆

z (RoHS Compliant)Sjd嘉泰姆

   应用范围 返回TOPSjd嘉泰姆

z White LED Display Backlighting Sjd嘉泰姆

z Cell Phone and Smart Phone Sjd嘉泰姆

z PDA, PMP, MP3 Sjd嘉泰姆

z Digital CameraSjd嘉泰姆

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