- MPQ7221-AEC1
MPQ7221-AEC1
16-Channel, 80mA/Ch, LED Driver with Separated PWM Analog Dimming and Serial Interface, AEC-Q100 Qualified
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Description
The MPQ7221 is a 16-channel LED driver that operates across a wide 4.5V to 16V input voltage (VIN) range. The MPQ7221 applies 16 internal current sources in each LED string terminal. The LED current (ILED) of each channel is set by an external current-setting resistor, with a maximum current up to 80mA.
The MPQ7221 integrates a serial interface, where 10 different serial addresses are configurable via an external resistor. This allows the MPQ7221 to support up to 10 cascaded devices to drive the LED array. Each channel can be enabled or disabled via the serial interface.
The MPQ7221 employs separated pulse-width modulation (PWM) dimming and analog dimming for each LED channel. Each channel uses 12-bit resolution PWM dimming and 6-bit analog dimming. The ILED ramp rate and phase shift can be configured to optimize the EMI and EMC performance.
The MPQ7221 can output a refresh signal from the RFSH/FLT pin, with the refresh signal frequency set via a register. Full protections include open-load protection, short-load protection, and over-temperature protection (OTP). If any of the protections is triggered, then the fault indicator is pulled low and the corresponding fault register is set.
The MPQ7221 is available in a QFN-24 (4mmx4mm) package, and is AECQ-100 qualified.
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Features & Benefits
- Easy Scalability:
- 16 Channels, 80mA/Channel Max
- 10 Addresses Configurable via an External Resistor
- Serial Interface Control:
- Serial Interface
- 6-Bit Analog Dimming for Each Channel
- 12-Bit Pulse-Width Modulation (PWM) Dimming for Each Channel
- Optimized for EMI and EMC:
- Selectable PWM Dimming Frequency (fPWM): 220Hz, 250Hz, 280Hz, and 330Hz
- Configurable LED Current (ILED) Slew Rate
- 40μs Phase Shift
- Full Protection Features:
- Fault Indicator
- LED Open Protection
- LED Short Protection with Configurable Threshold
- Under-Voltage Lockout (UVLO)
- Over-Temperature Protection (OTP)
- Additional Features:
- 4.5V to 16V Wide Input Voltage (VIN) Range
- Refresh Signal Output
- ILED Configured by an External Resistor
- Available in a QFN-24 (4mmx4mm) Package with Wettable Flanks
- Available in AEC-Q100 Grade 1

Active Part Numbers:
MPQ7221GRE-AEC1-Z MPQ7221GRE-AEC1-P
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z
MPQ7221-AEC1 Resources
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PRODUCT CATEGORY
AUTOMOTIVE EXTERIORPRODUCT CATEGORY -
PRODUCT CATEGORY
AUTOMOTIVE LIGHTINGPRODUCT CATEGORY -
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LED DRIVERSPRODUCT CATEGORY -
REFERENCE DESIGN
MPQ7221 TAIL LAMP REFERENCE DESIGNREFERENCE DESIGNThe tail lamp dynamic requirement in automotive lighting applications is becoming increasingly demanding. This reference design showcases a holistic tail lamp proposal, including a stop lamp (SL), turn lamp (TL), and side mark lamp (SML), which uses three MPQ7221 devices to drive the LED strings. The MPQ7221 is a 16-channel current sink LED driver that operates across a wide 4.5V to 16V input vol...
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