MPQ3367AGR-AEC1-Z

MPQ3367A Low-EMI, 6-Channel, Max 150mA/Ch Boost WLED Driver with 15000:1 Dimming Ratio and I2C, AEC-Q100 DESCRIPTION FEATURES The MPQ3367A is a step-up converter with 6 channel current sources. The device is designed to drive the white LED arrays as backlighting for small- or medium-sized LCD panels.   The device uses peak current mode as its PWM control architecture to regulate the boost converter. Six channel current sources are applied to the LED cathode to adjust the LED brightness. The MPQ3367A regulates the current in each LED string to the value set by an external current-setting resistor, with 2.5% current matching between strings. A low on resistance MOSFET and headroom voltage are provided to improve efficiency. The MPQ3367A has a standard I2C digital interface for easy use. The switching frequency can be configured via a resistor, I2C interface, or external clock. The MPQ3367A provides analog, PWM, and mix dimming mode with a PWM input. The dimming mode can be selected with the I2C interface or the MIX/AD pin. The device also has a phase shift function to improve or eliminate noise during PWM dimming. Robust protections are included to guarantee safe operation of the device. Protection modes include over-current protection (OCP), overvoltage protection (OVP), over-temperature protection (OTP), LED short and open protection. The MPQ3367A can automatically decrease the LED current at high temperatures. The MPQ3367A is available in a QFN-24 (4mmx4mm) package.                    3.5V to 36V Input Voltage Range 6 Channels with Maximum 150mA per Channel Internal 100mΩ, 50V MOSFET Configurable fSW up to 2.2MHz External Sync Switching Frequency Function Multi-Dimming Operation Mode through PWM Input, Including: o Direct PWM Dimming o Analog Dimming o Mix Dimming with 25% or 12.5% Transfer Point 15000:1 Dimming Ratio in PWM Dimming Mode when fPWM ≤ 200Hz 200:1 Dimming Ratio at Analog Dimming through PWM Dimming Signal Input Excellent EMI Performance, Frequency Spread Spectrum I2C Interface with 3 Selectable IC Addresses Phase Shift Function for PWM Dimming 2.5% Current Matching Cycle-by-Cycle Current Limit Disconnect VOUT from VIN Optional LED Current Auto-Decrease at High Temperatures LED Short/Open, OTP, OCP, and Inductor Short Protection Configurable LED Short Threshold Configurable OVP Threshold Fault Indicator Signal Output Available in a QFN-24 (4mmx4mm) Package Available in AEC-Q100 Grade 1 APPLICATIONS   Tablets and Notebooks Automotive Displays 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. MPQ3367A Rev. 1.0 MonolithicPower.com 9/17/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 1 MPQ3367A – 6-CHANNEL WLED DRIVER WITH HIGH DIM RATIO AND I2C, AEC-Q100 String 6 String 5 String 4 String 3 String 2 String 1 LED5 OVP STH LED6 ADR ISET AGND SD VCC FF COMP VIN TYPICAL APPLICATION MPQ3367A Rev. 1.0 MonolithicPower.com 9/17/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 2 MPQ3367A – 6-CHANNEL WLED DRIVER WITH HIGH DIM RATIO AND I2C, AEC-Q100 ORDERING INFORMATION Part Number MPQ3367AGR-AEC1* MPQ3367AGRE-AEC1** Package QFN-24 (4mmx4mm) QFN-24 (4mmx4mm) WF Top Marking See Below See Below MSL Rating 1 1 * For Tape & Reel, add suffix -Z (e.g. MPQ3367AGR–AEC1-Z). * * For Tape & Reel, add suffix -Z (e.g. MPQ3367AGRE–AEC1-Z). TOP MARKING (MPQ3367AGR-AEC1) MPS: MPS prefix Y: Year code WW: Week code M3367A: Part number LLLLLL: Lot number TOP MARKING (MPQ3367AGRE-AEC1) MPS: MPS prefix Y: Year code WW: Week code M3367A: Part number LLLLLL: Lot number E: Wettable lead flank MPQ3367A Rev. 1.0 MonolithicPower.com 9/17/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 3 MPQ3367A – 6-CHANNEL WLED DRIVER WITH HIGH DIM RATIO AND I2C, AEC-Q100 PACKAGE REFERENCE TOP VIEW QFN-24 (4mmx4mm) MPQ3367A Rev. 1.0 MonolithicPower.com 9/17/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 4 MPQ3367A – 6-CHANNEL WLED DRIVER WITH HIGH DIM RATIO AND I2C, AEC-Q100 PIN FUNCTIONS Pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Name Description PWM signal input pin. Apply a PWM signal on the DIM pin for brightness control. DIM is pulled low internally, and a 100Hz to 20kHz PWM signal is recommended. Dimming mode setting pin. MIX/AD is a current-source output (18μA). Connect a resistor to this pin to configure its voltage. When MIX/AD is low (