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. The
MAX8595X regulates constant LED current over the
entire temperature range. The MAX8596X features an
ambient-temperature derating function to avoid over-driving
the white LEDs during high ambient temperatures,
enabling higher drive current below +42°C.
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. Soft-start eliminates
inrush current during startup.
The MAX8595X/MAX8596X are available in a space-saving,
8-pin, 3mm x 3mm TDFN package.
Key Features
Applications/Uses
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 6V Input Range
0.3µA Shutdown Current
Pin Compatible with the MAX1561 and MAX1599
TDFN 3mm x 3mm x 0.8mm Package with
Exposed Paddle
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
Download
E-Mail
