MPQ3324 8-Channel, 100mA/Ch, LED Driver with Separated PWM Analog Dimming 2 and I C Interface, AEC-Q100 DESCRIPTION FEATURES The MPQ3324 is an 8-channel WLED driver that Wide 4V to 16V Input Voltage Range operates from a wide 4V to 16V input voltage 8 Channels, 100mA/Ch Maximum (V IN range. The MPQ3324 applies 8 internal current 4.5V) sources in each LED string terminal. The LED LED Current Configured via External current of each channel is set by an external Resistor current-setting resistor. Each channel has a 6-Bit Analog Dimming for Each Channel maximum 100mA current (while V 4.5V). IN 12-Bit PWM Dimming for Each Channel 2 Selectable 220Hz, 250Hz, 280Hz, or 330Hz The device integrates an I C interface. There are 2 PWM Dimming Frequency 10 different I C addresses that can be configured Refresh Signal Output via an external resistor. This means the 2 MPQ3324 can support up to 10 ICs that have I C Interface been cascaded to drive an LED array. Each 10 Addresses Configurable via External channel can be enabled or disabled through the Resistor 2 I C. Configurable LED Current Slew Rate 80s Phase Shift The MPQ3324 employs both separated PWM Fault Indicator dimming and analog dimming for each LED LED Open Protection channel, with a 12-bit PWM dimming resolution LED Short Protection, Configurable and 6-bit analog dimming for each channel. To Threshold optimize EMI and EMC performance, The LED Under-Voltage Lockout (UVLO) current ramping rate and phase shift can be configured. Over-Temperature Protection (OTP) ELV Directive II Compliant The MPQ3324 can output a refresh signal from Available in a QFN-24 (4mmx4mm) the RFSH/FLT pin. The refresh signal frequency Package with Wettable Flank 2 can be set via the I C. AEC-Q100 Grade 1 Integrated protections include open-load APPLICATIONS protection, short-load protection, and over- temperature protection (OTP). The fault indicator Automotive Lights pulls to low if a protection is triggered. Meanwhile, Automotive Displays the corresponding fault register is set. Instruments Clusters The MPQ3324 is AEC-Q100 qualified, and is General Industrial Displays available in QFN-24 (4mmx4mm). All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Quality Assurance. MPS, the MPS logo, and Simple, Easy Solutions are trademarks of Monolithic Power Systems, Inc. or its subsidiaries. MPQ3324 Rev. 1.0 MonolithicPower.com 1 2/18/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2021 MPS. All Rights Reserved. 2 MPQ3324 8-CH LED DRIVER WITH I C AND PWM AND ANALOG DIMMING, AEC-Q100 TYPICAL APPLICATION V IN LED18 VIN MPQ3324 RFSH RFSH /FLT /FLT SCL SDA GND ADDR ISET EN EN SCL SDA Figure 1: Typical Application Circuit 5V V BATT SW R1 FB R2 MPQ3324 MPQ3324 2 I C SCL/SDA /FLT R R R R R R ADDR ADDR ADDR SET SET SET Figure 2: System Application Circuit MPQ3324 Rev. 1.0 MonolithicPower.com 2 2/18/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2021 MPS. All Rights Reserved. LED8 LED7 R ADDR LED2 LED1 R ISET