MAX16814EVKIT+: 4 Ch @ 150mA, 4.75 ~ 40V in

The MAX16814 evaluation kit (EV kit) demonstrates the MAX16814 high-brightness LED (HB LED) driver, integrating a step-up DC-DC pre-regulator followed by 4 channels of linear current sinks. The step-up pre-regulator switches at 350 kHz and operates as a current-mode controlled regulator capable of providing up to 600 mA for the linear circuits. Each of the 4 linear channels can operate up to 40 V and provide up to 150 mA per channel. The 4 channels are configurable for 100 mA or 150 mA HB LED output current. The IC is a 20-pin TSSOP package with an exposed pad for enhanced thermal power dissipation.

The EV kit operates from a DC supply voltage of 6.5 V up to the HB LED string forward voltage. The EV kit can withstand a 40 V load-dump condition. The EV kit also demonstrates the IC features such as adaptive voltage optimization, undervoltage lockout (UVLO), overvoltage protection (OVP), cycle-by-cycle current limit, thermal shutdown, and digital PWM dimming operation using a digital PWM input signal to control the brightness of the HB LEDs. The EV kit also demonstrates a reference IC design for automotive applications.