GENERAL DESCRIPTION
FEATURES
♦ Up to Nine LEDs at 25mA ♦ Temperature Derating Function to Allow Fewer LEDs for Same Light (MAX8596X) ♦ 86% Efficiency (PLEDs / PIN) ♦ 1.7% Current-Regulation Accuracy ♦ Output Overvoltage Protection ♦ Flexible Dimming Control Analog Direct-PWM Internal Filter ♦ 1MHz PWM Switching Frequency ♦ 0.1µF Output Capacitor ♦ 12mVP-P Low Input Ripple ♦ Soft-Start Eliminates Inrush Current ♦ 2.6V to 5.5V Input Range ♦ 0.3µA Shutdown Current ♦ Pin Compatible with the MAX1561 and MAX1599 ♦ TDFN 3mm x 3mm x 0.8mm Package with Exposed Paddle MAX8595X/MAX8596X The MAX8595X/MAX8596X drive up to nine white LEDs with constant current and high efficiency to provide LCD backlighting in cell phones, PDAs, and other handheld devices. The series connection allows the LED currents to be identical for uniform brightness and minimizes the number of traces to the LEDs. A single Dual Mode™ input provides a simple means of brightness adjustment and on/off control. Fast 1MHz current-mode PWM operation allows for small input and output capacitors and a small inductor while minimizing ripple on the input supply/battery.
Maxim Integrated
