The MAX8830 light management IC integrates a 400mA (guaranteed) PWM DC-DC step-up converter, a 320mA white LED camera flash current sink, and four programmable LED current sinks. The internal 1MHz step-up converter features
an internal switching MOSFET and synchronous rectifier to improve efficiency and minimize external component count. The camera flash output current and
maximum timer is programmable through I²C. Each LED current is individually regulated to a programmable level (from off to 10mA in 32 steps) and is completely independent of each other.
An I²C interface controls individual on/off of all outputs, step-up output voltage setting, movie/flash current, flash timer duration settings, and individual LED current sink settings.
The MAX8830 is available in a 16-bump UCSP™ package (2.5mm x 2.5mm).
Key Features
Applications/Uses
Step-Up DC-DC Converter
400mA Guaranteed Output Current
Over 90% Efficiency
On-Chip FET and Synchronous Rectifier
Fixed 1MHz PWM Switching
Small 2.2µH to 10µH Inductor
I²C-Programmable VOUT (3.8V to 5.2V and Off in 16 Steps)
Flash LED Current Sink
I²C-Programmable Flash Output Current (Off to 320mA in 32 Steps)
I²C-Programmable Flash Maximum Timer (0.5s, 1.0s, 1.5s, or 2.0s)
I²C-Programmable Movie Output Current (Off to 160mA in 16 Steps)
Movie Enabled by I²C or Logic Input
Flash Enabled by Logic Input
Low Dropout (75mV typ)
Four LED Current Sinks
Individually I²C-Programmable Output Current Off to 10mA in 32 Steps
Download
E-Mail