MAX6964AEG+

MAX6964AEG+ is a 17 output LED driver/GPO with intensity control and hot-insertion protection in a 24 pin QSOP package. The I2C compatible serial interfaced peripheral provides microprocessors with 17 output ports. Each output is an open-drain current sinking output rated at 50mA and 7V. The outputs are capable of driving LEDs or providing logic outputs with external resistive pull-up up to 7V. Eight bit PWM current control is also integrated. Four of the bits are global control and apply to all LED outputs to provide coarse adjustment of current from fully off to fully on with 14 intensity steps. Each output has an individual 4bit control which further divides globally set current into 16 more steps. Alternatively, the current control can be configured as a single 8bit control that sets all outputs at once. Each output has independent blink timing with two blink phases. This device is used in LCD backlights, LED status indication, keypad backlights and RGB LED drivers.

• Supply voltage range from 2V to 36V
• 400Kbps 2-wire serial interface, 5.5V tolerant
• High output current of 50mA max per port
• Supports hot insertion
• Low standby current of 1.2μA
• Reset input clears the serial interface and restores power-up default state
• Controlled through 2-wire I2C serial interface and can be configured to one of four I2C addresses
• Operating temperature range from -40°C to 125°C