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Monolithic Power Systems Inc. MPQ7220GR-AEC1-P
- Part No.:
- MPQ7220GR-AEC1-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- LED Drivers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MPQ7220GR-AEC1-P.pdf
- Description:
- IC LED DRV RGLTR PWM 100MA 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,591
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Product details
Overview
MPQ7220GR-AEC1-P from Monolithic Power Systems is a 6-channel automotive-grade boost LED driver with integrated 100mΩ/50V MOSFETs, AEC-Q100 Grade 1 qualified for tail light systems. It delivers up to 100mA per channel with ±2.5% current matching, programmable 470kHz–2.2MHz switching frequency, and PWM dimming support from 100Hz to 20kHz.
For engineers reviewing the MPQ7220GR-AEC1-P datasheet, MPQ7220GR-AEC1-P pinout, MPQ7220GR-AEC1-P application in automotive lighting, or MPQ7220GR-AEC1-P equivalent for LED string control, this page provides verified technical context, validated pin functions, real-world protection behavior, and AEC-Q100-compliant thermal and fault response data.
Technical Context
The MPQ7220GR-AEC1-P implements peak current mode control with cycle-by-cycle current limiting (2.3–4A typical) and internal 100mΩ low-side MOSFETs. Its six independent current sources regulate LED strings using an external ISET resistor, achieving 2.5% inter-string matching at 20–100mA.
It integrates programmable protections: OVP threshold set via voltage divider on OVP pin (1.9–2.1V), LED short detection via STH pin (4.3–5.1V threshold), spread-spectrum control via FSP pin, and thermal shutdown at 170°C with 20°C hysteresis. Fault status is reported via open-drain FF pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 36V - supports full automotive battery range including cold-crank (6V) and load-dump (36V) transients. |
| LED Channel Current | Up to 100mA per channel - set by external ISET resistor; ±2.5% matching ensures uniform brightness across 6 strings. |
| Switching Frequency | Programmable 470kHz to 2.2MHz - adjustable via resistor on FREQ/SYNC pin; higher frequencies reduce inductor size. |
| Current Regulation Accuracy | ±2.5% between channels - enables consistent luminance in multi-string tail light designs without external calibration. |
| Protection Features | OCP, OVP (1.9–2.1V), OTP (170°C), LED short/open, inductor short - fault flag (FF) signals all conditions via open-drain output. |
| Dimming Interface | PWM dimming 100Hz–20kHz on DIM pin - compatible with standard microcontroller PWM outputs; no analog control required. |
| Package | QFN-24 (4mm × 4mm) - exposed pad for thermal dissipation; MSL Level 1, suitable for reflow assembly. |
Pinout & Package
MPQ7220GR-AEC1-P uses a QFN-24 (4mm × 4mm) package with exposed thermal pad. The exposed pad must be connected to PCB ground plane for optimal thermal performance (θJA = 42°C/W, θJC = 9°C/W).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| DIM (Pin 1) | PWM brightness control input | Accepts 100Hz–20kHz PWM signal; internally pulled low; pull high to disable dimming. |
| FREQ/SYNC (Pin 3) | Frequency programming / clock sync | Resistor-to-GND sets fSW; external clock input synchronizes switching to system timing. |
| EN (Pin 4) | Enable control | High ≥1.2V enables operation; low ≤0.4V forces shutdown with 1μA quiescent current. |
| ISET (Pin 9) | LED current reference | 1.2V reference node; tie external resistor to GND to set per-channel current (e.g., 24.9kΩ → 50mA). |
| LED1–LED6 (Pins 11–16) | LED string cathode connections | Each drives one LED string; internal current source sinks up to 100mA with 300–1000mV headroom. |
| SW (Pin 18) | Internal low-side MOSFET drain | Connects to boost inductor; integrates 100mΩ/50V MOSFET; max duty cycle 90%. |
| OVP (Pin 19) | Over-voltage protection sense | Voltage divider sets OVP threshold (1.9–2.1V); prevents damage during output overvoltage events. |
| STH (Pin 20) | LED short threshold | 18µA current source; resistor-to-GND sets short detection threshold (4.3–5.1V); float = 5V default. |
| FSP (Pin 21) | Spread-spectrum control | 18µA current source; resistor sets jitter depth (1/20 or 1/32 of center frequency); float disables spread spectrum. |
| VCC (Pin 22) | Internal 5V LDO output | Powers internal logic and gate driver; requires local 1µF ceramic capacitor; drops to 0V in shutdown. |
| SD (Pin 23) | External PMOS disconnect drive | Pulls VIN–6V to turn off external high-side PMOS during fault; float if unused. |
| VIN (Pin 24) | Main power input | Supplies IC and boost converter; absolute max 42V; includes 3.1V UVLO with 100mV hysteresis. |
Key Features
| Feature | Design Value |
|---|---|
| 6-channel independent current regulation | Each channel delivers up to 100mA with ±2.5% matching - eliminates need for per-string current-setting resistors. |
| Programmable switching frequency | 470kHz–2.2MHz via single resistor - enables EMI optimization and inductor size reduction without changing layout. |
| Integrated spread-spectrum modulation | FSP pin controls jitter depth (1/20 or 1/32 of fSW) - reduces peak EMI by >10dB, meeting CISPR25 Class 5 limits. |
| AEC-Q100 Grade 1 qualification | -40°C to +125°C operating junction temperature - validated for under-hood automotive tail light applications. |
| Comprehensive fault protection | OVP, LED short/open, OTP, inductor short, and cycle-by-cycle current limit - FF pin latches faults for system-level diagnostics. |
| Thermal derating of LED current | Auto-decrements current above 125°C - maintains safe operation without external thermal management circuitry. |
Applications
| Automotive Rear Combination Lamp | Automotive Dynamic Turn Signal |
|---|---|
|
Use Scenario: Driving multiple LED strings in brake, tail, and reverse lamp functions within a single rear lamp housing. IC Role / Device Role / Timing Role: Boost controller and 6-channel current sink regulating individual LED strings with matched brightness and synchronized dimming. Use Value: Eliminates discrete current regulators and reduces BOM count by integrating six 100mA drivers with ±2.5% matching in one QFN-24 package. |
Use Scenario: Implementing sequential amber turn signal animation using six independently controllable LED strings. IC Role / Device Role / Timing Role: High-speed PWM dimming interface (100Hz–20kHz) enables precise timing control of dynamic lighting sequences. Use Value: Enables smooth, flicker-free animation without external dimming controllers-dimming frequency directly controlled via MCU GPIO. |
| Automotive CHMSL (Center High-Mount Stop Lamp) | Automotive License Plate Illumination |
|
Use Scenario: Powering high-brightness CHMSL arrays requiring stable current under wide input voltage swings (6–16V). IC Role / Device Role / Timing Role: Wide 3.5–36V input range and 170°C thermal shutdown ensure reliable operation during engine cranking and hot ambient conditions. Use Value: Maintains constant luminance across battery voltage variations without brightness droop or thermal shutdown in confined spaces. |
Use Scenario: Illuminating license plate LEDs in compact, thermally constrained enclosures with minimal PCB area. IC Role / Device Role / Timing Role: QFN-24 (4mm×4mm) package with exposed thermal pad enables efficient heat transfer to chassis ground. Use Value: Achieves 94% efficiency at 12V input/34V LED string, minimizing self-heating and enabling passive thermal design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 6-channel automotive LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ7220GF-AEC1 | TSSOP28-EP package (32°C/W θJA), same electrical specs and pinout mapping - differs only in footprint and thermal resistance. | Better suited for manual assembly or legacy TSSOP-compatible layouts; larger footprint but higher power dissipation capability (3.9W vs. 2.97W). | Select when board space allows larger package or when thermal margin exceeds QFN-24 limits in high-ambient environments. |
| MPQ7296GQ-AEC1-Z | 4-channel, 150mA/channel, integrated high-side switch, no external ISET resistor - different architecture and lower channel count. | Designed for simpler rear lamp configurations; lacks 6-string flexibility and independent current matching of MPQ7220. | Choose only if application requires fewer strings and benefits from integrated high-side drive and simplified biasing. |
Compared with MPQ7220GF-AEC1, the GR variant offers superior thermal performance in compact layouts; versus MPQ7296GQ-AEC1-Z, it provides higher channel count and tighter current matching essential for uniform multi-string illumination.
Availability
MPQ7220GR-AEC1-P is available at Aetrix Electronics and suitable for automotive rear lighting, CHMSL, dynamic turn signal modules, and license plate illumination requiring stable component supply with AEC-Q100 compliance and long-term production support.
Supply support for MPQ7220GR-AEC1-P includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs, with core expertise in DC/DC conversion, LED drivers, and motor control solutions.
The MPQ7220 product line is designed specifically for AEC-Q100-compliant automotive LED lighting systems, emphasizing current accuracy, fault resilience, EMI robustness, and thermal stability in harsh vehicle environments.
FAQ
What is the maximum total output power supported by MPQ7220GR-AEC1-P?
The device supports up to 6 × 100mA at typical VLED = 34V (6P12S configuration), delivering ~20.4W total LED power. Thermal limits constrain continuous operation to 2.97W dissipation in QFN-24 at 25°C ambient; derating applies above 25°C per θJA = 42°C/W.
How does the LED current auto-decrement feature operate?
LED current begins decreasing linearly above 125°C junction temperature, reaching zero at 170°C (thermal shutdown). This behavior is implemented in analog circuitry and requires no external components or firmware intervention - ensuring fail-safe thermal management.
Can MPQ7220GR-AEC1-P drive mixed LED forward voltages across channels?
Yes. Each channel operates as an independent current sink with 300–1000mV headroom voltage. As long as VOUT ≥ VLEDx + 1V (accounting for boost overhead), mismatched VF strings (e.g., red + white LEDs) can be driven simultaneously with matched current.
What is the purpose of the SD pin, and how is it used?
The SD pin drives the gate of an external high-side PMOS to disconnect VIN from the system during fault conditions (OVP, OTP, LED short). It pulls to VIN – 6V during faults; leave floating if external disconnect is not required.
Is spread-spectrum modulation enabled by default?
No. Spread spectrum is disabled when FSP pin is left floating (≥1.4V). To enable, connect a resistor from FSP to GND to set voltage between 0.45V and 1.4V for 1/32 jitter, or <0.4V for 1/20 jitter - verified in CISPR25 Class 5 EMI testing.
Does MPQ7220GR-AEC1-P support analog dimming?
No. The device only supports PWM dimming via the DIM pin (100Hz–20kHz). There is no analog dimming interface or ISET voltage modulation capability - brightness control must be implemented digitally using PWM duty cycle.
What is the minimum recommended ISET resistor value?
The datasheet specifies RISET = 24.9kΩ for 50mA/channel. Lower values increase current but reduce regulation accuracy and increase thermal stress. Values below 10kΩ are not characterized and may exceed safe operating area limits.
MPQ7220GR-AEC1-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 6
- Voltage - Supply (Min):
- 3.5V
- Voltage - Supply (Max):
- 36V
- Voltage - Output:
- -
- Current - Output / Channel:
- 100mA
- Frequency:
- 400kHz ~ 2.2MHz
- Dimming:
- PWM
- Applications:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QFN (4x4)
MPQ7220GR-AEC1-P FAQ
1.How can I place an order for MPQ7220GR-AEC1-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ7220GR-AEC1-P on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MPQ7220GR-AEC1-P reliable?
The price and inventory of MPQ7220GR-AEC1-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPQ7220GR-AEC1-P is usually 5 days.
3.What payment methods are accepted for MPQ7220GR-AEC1-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ7220GR-AEC1-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ7220GR-AEC1-P?
MPQ7220GR-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ7220GR-AEC1-P order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MPQ7220GR-AEC1-P?
For technical support, including MPQ7220GR-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ7220GR-AEC1-P requirements.
6.How does Aetrix verify that MPQ7220GR-AEC1-P is sourced from the original manufacturer or authorized distributors?
All MPQ7220GR-AEC1-P products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MPQ7220GR-AEC1-P meets industry standards.
7.What is the process for return or replacement of MPQ7220GR-AEC1-P?
All MPQ7220GR-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ7220GR-AEC1-P, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MPQ7220GR-AEC1-P part is unused and in its original packaging.
Return procedure for MPQ7220GR-AEC1-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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