DESCRIPTION

The MPQ3324 is an 8-channel WLED driver that

operates from a wide 4V to 16V input voltage

range. The MPQ3324 applies 8 internal current

sources in each LED string terminal. The LED

current of each channel is set by an external

current-setting resistor. Each channel has a

maximum 100mA current (while VIN ≥ 4.5V).

The device integrates an I2C interface. There are

10 different I2C addresses that can be configured

via an external resistor. This means the

MPQ3324 can support up to 10 ICs that have

been cascaded to drive an LED array. Each

channel can be enabled or disabled through the

I2C.

The MPQ3324 employs both separated PWM

dimming and analog dimming for each LED

channel, with a 12-bit PWM dimming resolution

and 6-bit analog dimming for each channel. To

optimize EMI and EMC performance, The LED

current ramping rate and phase shift can be

configured.

The MPQ3324 can output a refresh signal from

the RFSH/FLT pin. The refresh signal frequency

can be set via the I2C.

Integrated protections include open-load

protection, short-load protection, and overtemperature

protection (OTP). The fault indicator

pulls to low if a protection is triggered. Meanwhile,

the corresponding fault register is set.

The MPQ3324 is AEC-Q100 qualified, and is

available in QFN-24 (4mmx4mm).

FEATURES

 Wide 4V to 16V Input Voltage Range

 8 Channels, 100mA/Ch Maximum (VIN ≥

4.5V)

 LED Current Configured via External

Resistor

 6-Bit Analog Dimming for Each Channel

 12-Bit PWM Dimming for Each Channel

 Selectable 220Hz, 250Hz, 280Hz, or 330Hz

PWM Dimming Frequency

 Refresh Signal Output

 I2C Interface

 10 Addresses Configurable via External

Resistor

 Configurable LED Current Slew Rate

 80μs Phase Shift

 Fault Indicator

 LED Open Protection

 LED Short Protection, Configurable

Threshold

 Under-Voltage Lockout (UVLO)

 Over-Temperature Protection (OTP)

 ELV Directive II Compliant

 Available in a QFN-24 (4mmx4mm)

Package with Wettable Flank

AEC-Q100 Grade 1

APPLICATIONS

 Automotive Lights

 Automotive Displays

 Instruments Clusters

 General Industrial Displays