- MPQ3621-AEC1
MPQ3621-AEC1
48-Channel, Max 50mA/Channel Current-Source LED Driver with Independent Analog and PWM Dimming, AEC-Q100 Qualified
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Description
The MPQ3621-AEC1 is a 48-channel LED driver with a 12V voltage rating and maximum 50mA current sources. It is designed to drive LED arrays for local dimming backlighting in automotive LCD panels.
The device employs low headroom to regulate the LED current (ILEDx, where x = 1–48). The adaptive voltage feedback function optimizes the LED voltage (VLEDx, where x = 1–48), which achieves higher system efficiency.
The MPQ3621-AEC1 supports independent 16-bit pulse-width modulation (PWM) and 7-bit analog dimming for each channel via the serial interface. The configurable internal registers enable reliability and flexibility in application. The 25MHz serial interface clock guarantees a high data transfer rate for multiple devices operating in a daisy-chain application.
Robust protections are included to guarantee safe device operation. Protection modes include LED open protection, LED short protection, and over-temperature protection (OTP). All fault statuses can be read via the serial interface.
The MPQ3621-AEC1 is available in a QFN-68 (8mmx8mm) package, and is available in AEC-Q100 Grade 0.
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Features & Benefits
- Internal 48 Channels with Max 50mA per Channel
- 12V Voltage Rating
- Low Dropout Voltage (250mV at 30mA)
- Independent 16-Bit Pulse-Width Modulation (PWM) Dimming
- Independent 7-Bit Analog Dimming
- Adaptive Voltage Feedback Function
- 25MHz Serial Interface
- Supports Daisy-Chaining for Multiple ICs
- Improve EMI with LED Current (ILEDx, where x = 1–48) Slew Rate and Phase Shift
- LED Short Protection
- LED Open Protection
- Fault Status Indicator Register
- Available in a QFN-68 (8mmx8mm) Package
- Available in AEC-Q100 Grade 0
Active Part Numbers:
MPQ3621GQQE-AEC1-Z MPQ3621GQQE-AEC1-P
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z
MPQ3621-AEC1 Resources
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RGB LED DRIVERSPRODUCT CATEGORY -
APPLICATION
LOW-POWER EXTERIOR AND INTERIOR LIGHTINGAPPLICATIONAs automotive LED drivers replace traditional bulbs, the operation of low-power exterior and interior lighting systems have become increasingly advanced. Exterior lighting includes turn signals, side markers, rear combination lamps (RCLs), and fog lamps. Interior lighting includes button backlighting, instrument clusters, and dome and ambient lights. While improved low-power operation of exterior ...
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ALL LED LIGHTINGAPPLICATIONAutomotive LED lighting systems are comprised of the headlights, interior lights, rear lights, small lights, LED pixel light controllers, and DC/DC LED drivers. With increasingly dynamic and accurate LED lighting features that integrate flexible control, animation, and energy efficiency, key functions including supply, control, sense, actuation, and communication are also becoming more complex. Th...
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DISPLAY (NAVIGATION, HEADS-UP, CLUSTER)APPLICATIONAutomotive displays — which include the center display, heads-up display (HUD), and gauge instrument cluster — show key information and interactive content to the driver. The center information display is connected to the head unit, and provides navigation and other in-cabin infotainment controls. The automotive HUD and gauge instrument cluster provide easy-to-access information for the driver. Th...
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APPLICATION
INFOTAINMENT SYSTEMSAPPLICATIONAutomotive in-vehicle infotainment systems are becoming increasingly software-driven to enhance safety and security, as well as the overall driving experience. Modern cars integrate driving and environmental information, passenger entertainment, wireless connections, and navigation into a centralized infotainment system architecture. However, with the rise of sophisticated in-vehicle infotainment ...
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