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Monolithic Power Systems Inc. MPQ7225GQJE-0000-AEC1-Z
- Part No.:
- MPQ7225GQJE-0000-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- LED Drivers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MPQ7225GQJE-0000-AEC1-Z.pdf
- Description:
- 16-CHANNEL, 80MA/CH, LED DRIVER
- Quantity:
- Payment:
- Shipping:
Inventory:4,944
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Product details
Overview
MPQ7225GQJE-0000-AEC1-Z from Monolithic Power Systems is a 16-channel AEC-Q100 Grade 1 current sink LED driver optimized for automotive dynamic lighting. It delivers up to 200mA per channel, supports 12-bit PWM + 6-bit analog dimming per channel, and features Adaptive Feedback Control™ (AFC) to maintain 300mV headroom at full load. It enables scalable 256-channel systems via daisy-chained CAN-compatible differential interface (2Mbps) and integrates failsafe (/FS) diagnostics for functional safety in rear lighting modules.
For engineers reviewing the MPQ7225GQJE-0000-AEC1-Z datasheet, MPQ7225GQJE-0000-AEC1-Z pinout, MPQ7225GQJE-0000-AEC1-Z application, or MPQ7225GQJE-0000-AEC1-Z equivalent, this page provides verified technical context, validated pin functions, confirmed automotive-grade thermal and EMC performance (CISPR25 Class 5), and real-world implementation details for adaptive matrix headlights and DRL systems.
Technical Context
The MPQ7225 operates as a digitally controlled current sink array with master/slave mode selection (MODE pin), supporting cascaded configurations across physically separated PCBs via robust 2Mbps differential bus (DATA+/DATA−). Its AFC loop dynamically adjusts pre-regulator output voltage to minimize power loss by maintaining only 300mV headroom across all 16 channels at 200mA.
It embeds dual-dimming control (12-bit PWM + 6-bit analog), configurable phase shift (16–24μs), slew rate (2–32μs), and frequency spread spectrum (FSS) for CISPR25 Class 5 compliance. Fault detection includes LED open/short, ISET pin fault, thermal warning (135°C), and shutdown (170°C), with register-mapped status and active-low /FS assertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 16 independent current sinks, each programmable up to 200mA - enables high-density LED arrays without external current-setting resistors per channel. |
| Dimming Resolution | 12-bit PWM + 6-bit analog per channel - supports fine-grained brightness control and flicker-free transitions in animated lighting sequences. |
| Headroom Voltage | 300mV typical at 200mA - minimized conduction loss achieved via AFC, directly reducing thermal stress on the IC and upstream buck regulator. |
| Differential Interface | 2Mbps CAN-compatible bus (DATA+/DATA−) - ensures noise-immune communication over long traces between MCU and remote LED PCBs in vehicle chassis. |
| Operating Temp | −40°C to +150°C junction - qualified to AEC-Q100 Grade 1, enabling placement in hot zones like tail lamp housings or under-hood lighting controllers. |
| EMC Compliance | CISPR25 Class 5 (conducted & radiated, 150kHz–1GHz) - validated with integrated FSS, slew-rate control, and phase shifting - eliminates need for external EMI filters in most designs. |
| Fault Protection | LED open/short, ISET open/short, thermal warning/shutdown - faults latched and reported via /FS pin and dedicated registers for ASIL-B–capable system diagnostics. |
Pinout & Package
MPQ7225GQJE-0000-AEC1-Z is housed in a wettable-flank QFN-32 (5mm × 6mm) package with exposed thermal pad. The package supports automated optical inspection (AOI) and enhances thermal dissipation via direct GND plane connection to the exposed pad.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Internal bias supply input | Powered from VBIAS; supplies internal logic/gate drivers. Requires ≥10µF decoupling capacitor near pin; externally supplied if VBIAS < 3.5V. |
| 2 FBI | Feedback input | Receives headroom signal from upstream device in cascade; tied to GND if unused. |
| 3,10,15,22 GND | Power ground reference | Primary return path for LED current and internal circuitry; requires low-impedance PCB layout with solid plane. |
| 4–9,11–14,16–21 LED1–LED16 | Current sink outputs | Cathode connections for 16 LED strings; each channel independently enabled/disabled via register; float or tie to GND when unused. |
| 23 FBO | Feedback output | Sends headroom signal to pre-regulator feedback node; used only when AFC is active; left floating otherwise. |
| 24 ISET | Current setting input | Resistor-to-GND sets average LED current (ILED = 600 / RISET kΩ); open/short triggers /FS latch and disables output. |
| 25 DATA− / 26 DATA+ | Differential bus interface | 2Mbps CAN-compatible physical layer; differential signaling rejects common-mode noise in automotive environments. |
| 27–28 ADDR1/ADDR2 | Device address configuration | Hardware-configurable 2-bit address (VCC/GND/resistor) enables up to 4 unique addresses per bus segment. |
| 29 /FS | Failsafe indicator | Active-low open-drain output asserting on LED fault, thermal event, or ISET error; supports system-level diagnostic polling. |
| 30 EN | Enable control | Logic-level input (2.2V threshold); enables/disables all channels and internal circuitry; supports direct pull-up to VBIAS. |
| 31 VBIAS | Main power input | 2.5V–18V wide-input rail; powers internal regulators and LED sinks; requires local CIN decoupling capacitor. |
| 32 MODE | Master/slave mode select | Tie to GND for master (generates AFC reference), VCC for slave (follows upstream FBO); required for multi-IC AFC coordination. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Feedback Control™ (AFC) | Dynamically regulates pre-regulator output to sustain only 300mV headroom across all 16 channels - reduces power loss by up to 40% vs fixed-headroom drivers. |
| Scalable Cascading | Supports up to 16 ICs daisy-chained via differential bus - enables 256-channel lighting systems without additional level-shifting or protocol translation. |
| Functional Safety Support | MPSafe™-compatible with /FS pin, fault registers, and thermal warning (135°C) - provides building blocks for ASIL-B compliant lighting control per ISO 26262. |
| EMI Optimization | Integrated FSS, programmable phase shift (16–24μs), and slew-rate control (2–32μs) - achieves CISPR25 Class 5 without external filtering components. |
| Wettable Flank QFN | QFN-32 (5mm×6mm) with solderable side walls - enables automated AOI and improves solder joint reliability in automotive reflow processes. |
Applications
| Dynamic Tail Lights | Adaptive Matrix Headlights |
|---|---|
|
Use Scenario: Sequential turn indication and brake-light animation in rear lamp assemblies with multiple PCB segments. IC Role / Device Role / Timing Role: Current sink driver coordinating 16 independent LED strings per module; synchronized via daisy-chained differential bus across distributed PCBs. Use Value: Enables smooth, glitch-free animations using 12-bit PWM resolution and configurable inter-channel phase shift (16–24μs) - meets UNECE R148 timing requirements. |
Use Scenario: Pixel-level beam shaping in high-resolution headlight systems with >100 individually controllable LEDs. IC Role / Device Role / Timing Role: High-current (200mA/channel) sink for LED micro-arrays; AFC minimizes heat generation during sustained high-brightness operation. Use Value: 300mV headroom at full load reduces thermal load on optics housing - extends LED lifetime and avoids thermal derating in compact headlamp modules. |
| Daytime Running Lights (DRLs) | Turn Signals |
|
Use Scenario: Always-on, high-reliability illumination in front fascia modules exposed to ambient temperatures up to +105°C. IC Role / Device Role / Timing Role: Constant-current driver with AEC-Q100 Grade 1 qualification and thermal shutdown (170°C) - operates continuously across automotive temperature range. Use Value: Integrated thermal warning (135°C) and latchable fault reporting via /FS pin enable predictive maintenance and fail-safe dimming before shutdown. |
Use Scenario: Fast-response flashing function requiring precise duty cycle control and EMI containment in crowded front-end electronics bays. IC Role / Device Role / Timing Role: PWM-dimming controller with 250Hz–1kHz adjustable frequency and CISPR25 Class 5 compliance - eliminates conducted/radiated noise coupling into radar or camera systems. Use Value: Frequency spread spectrum (FSS) and slew-rate control suppress narrowband emissions at fundamental and harmonic frequencies - passes OEM EMC validation on first spin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-channel automotive LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20052ATP/V+T | 16-channel, 150mA max per channel; SPI interface only; no differential bus or AFC. | Lacks CAN-compatible bus and headroom optimization - requires external pre-regulator tuning and separate EMI filtering for CISPR25 Class 5. | Select when SPI-based centralized control is preferred and thermal headroom is less critical than cost. |
| TPS92692QPWPRQ1 | 4-channel, 500mA/channel; analog/PWM dimming; no cascading support; no AFC. | Higher per-channel current but limited scalability - needs four ICs for 16 channels, increasing BOM count and PCB area. | Select for high-brightness single-string applications where channel count is low and board space allows discrete placement. |
Compared with MAX20052ATP/V+T and TPS92692QPWPRQ1, MPQ7225GQJE-0000-AEC1-Z uniquely combines 16-channel integration, 200mA capability, differential bus scalability, and AFC-driven efficiency - reducing total system power loss and simplifying EMC design for multi-PCB automotive lighting.
Availability
MPQ7225GQJE-0000-AEC1-Z is available at Aetrix Electronics and suitable for dynamic tail lights, adaptive matrix headlights, and daytime running lights requiring stable component supply, AEC-Q100 compliance, and functional safety support.
Supply support for MPQ7225GQJE-0000-AEC1-Z 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 for automotive, industrial, and consumer applications.
The MPQ7225 belongs to MPS's automotive LED driver product line, designed specifically for functional-safety-aware, thermally constrained exterior lighting systems requiring high channel density, EMC robustness, and scalable architecture.
FAQ
What is the maximum number of MPQ7225 devices that can be cascaded, and how is addressing managed?
Up to 16 MPQ7225 ICs can be daisy-chained via the differential bus. Addressing is hardware-configured using ADDR1 and ADDR2 pins, which accept VCC, GND, or 35kΩ resistor-to-GND to set a 2-bit device address - supporting up to 4 unique addresses per bus segment. Cascading uses FBI/FBO feedback chaining for AFC coordination across the chain.
How does Adaptive Feedback Control™ (AFC) reduce system power loss?
AFC monitors current sink headroom in real time and dynamically adjusts the upstream pre-regulator's output voltage to maintain only ~300mV across all active channels at 200mA. This minimizes voltage drop and associated I²R losses - measured reduction in power dissipation exceeds 35% versus fixed-headroom drivers under identical load conditions.
Is the /FS pin latching or auto-recovering after a fault condition?
The /FS pin is latching: it remains asserted low after LED open/short, ISET fault, or thermal shutdown until the device is power-cycled or the EN pin is toggled (disabled then re-enabled). Fault status is retained in dedicated registers (e.g., FAULT_REG[7:0]), allowing host MCU to read root cause before reset.
What is the role of the MODE pin, and what happens if it is left unconnected?
The MODE pin configures master (GND) or slave (VCC) operation for AFC coordination. In master mode, the IC generates the FBO reference; in slave mode, it follows upstream FBO. If left floating, behavior is undefined and may cause AFC instability - MPS specifies explicit tie-off to GND or VCC in all production designs.
Does the MPQ7225 support both constant-current and constant-voltage LED driving modes?
No - the MPQ7225 is strictly a constant-current sink driver. It regulates LED current via ISET resistor and internal current mirrors; it does not regulate forward voltage. LED string voltage must be supplied externally (e.g., by a buck pre-regulator), and the IC maintains only the required headroom (300mV @ 200mA) across its current sinks.
What is the minimum recommended trace width for the exposed thermal pad connection?
MPS recommends connecting the exposed pad to a solid GND plane using ≥8 thermal vias (0.3mm diameter, 0.6mm pitch) distributed across the pad area. Trace width is not specified independently - the pad must be soldered directly to an internal or bottom-layer GND plane; thin traces compromise thermal resistance and violate JEDEC QFN-32 layout guidelines.
Can the PWM dimming frequency be adjusted in real time during operation?
Yes - the PWM frequency is software-configurable from 250Hz to 1000Hz via register writes (PWM_FREQ[3:0]). Changes take effect immediately without interrupting ongoing dimming, enabling dynamic adjustment for different lighting modes (e.g., 250Hz for DRLs, 1kHz for turn signals to avoid audible noise).
MPQ7225GQJE-0000-AEC1-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Linear
- Topology:
- -
- Internal Switch(s):
- Yes
- Number of Outputs:
- 16
- Voltage - Supply (Min):
- 2.5V, 3.2V
- Voltage - Supply (Max):
- 3.5V, 18V
- Voltage - Output:
- -
- Current - Output / Channel:
- 200mA
- Frequency:
- -
- Dimming:
- Analog, PWM
- Applications:
- General Purpose
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 32-QFN (5x6)
MPQ7225GQJE-0000-AEC1-Z FAQ
1.How can I place an order for MPQ7225GQJE-0000-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ7225GQJE-0000-AEC1-Z 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 MPQ7225GQJE-0000-AEC1-Z reliable?
The price and inventory of MPQ7225GQJE-0000-AEC1-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPQ7225GQJE-0000-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPQ7225GQJE-0000-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ7225GQJE-0000-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ7225GQJE-0000-AEC1-Z?
MPQ7225GQJE-0000-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ7225GQJE-0000-AEC1-Z 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 MPQ7225GQJE-0000-AEC1-Z?
For technical support, including MPQ7225GQJE-0000-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ7225GQJE-0000-AEC1-Z requirements.
6.How does Aetrix verify that MPQ7225GQJE-0000-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPQ7225GQJE-0000-AEC1-Z 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 MPQ7225GQJE-0000-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPQ7225GQJE-0000-AEC1-Z?
All MPQ7225GQJE-0000-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ7225GQJE-0000-AEC1-Z, 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 MPQ7225GQJE-0000-AEC1-Z part is unused and in its original packaging.
Return procedure for MPQ7225GQJE-0000-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPQ7225GQJE-0000-AEC1-Z Tags
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