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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > LED Drivers

Monolithic Power Systems Inc. MPQ7220GF-AEC1-P

Name: MPQ7220GF-AEC1-P
Brand: Monolithic Power Systems Inc.
SKU: MPQ7220GF-AEC1-P
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPQ7220GF-AEC1-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: LED Drivers

Package:: 28-TSSOP (0.173", 4.40mm Width) Exposed Pad

Datasheet:: MPQ7220GF-AEC1-P.pdf

Description:: IC LED DRVR RGLTR PWM 28TSSOP

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Product details

Overview

MPQ7220GF-AEC1-P from Monolithic Power Systems is a 6-channel automotive-grade boost LED driver with AEC-Q100 Grade 1 qualification, designed specifically for tail light illumination. It delivers up to 100mA per channel with ±2.5% current matching, operates from 3.5V–36V input, integrates a 100mΩ/50V internal MOSFET, and supports programmable switching frequency up to 2.2MHz.

For engineers reviewing the MPQ7220GF-AEC1-P datasheet, MPQ7220GF-AEC1-P pinout, MPQ7220GF-AEC1-P application in automotive lighting, or MPQ7220GF-AEC1-P equivalent for LED string control, this page provides verified technical context, package-specific pin mapping, real-world protection behavior, and validated alternatives for tail light system design.

Technical Context

The MPQ7220GF-AEC1-P implements peak current mode PWM control with independent per-channel current regulation via six internal current sources. Its 5V LDO (VCC) powers gate drivers and logic, and it uses external resistors to set switching frequency (via FREQ/SYNC), OVP threshold (via OVP divider), short-circuit protection (via STH), and spread-spectrum jitter (via FSP).

It features cycle-by-cycle current limiting (2.3A–4A typical), thermal foldback (LED current auto-decrements above 125°C), and fault signaling via open-drain FF pin. Protection includes LED open/short detection, inductor short, OCP, OVP, OTP, and VIN UVLO with 100mV hysteresis.

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) conditions.
Max Output Current per Channel	100mA - enables driving high-brightness LED strings with tight regulation across all six channels.
Current Matching Accuracy	±2.5% - ensures uniform luminance across tail light segments without visible brightness variation.
Switching Frequency Range	400kHz to 2.2MHz - allows EMI optimization and compact magnetics; programmable via resistor or external sync clock.
Integrated MOSFET R_DS(on)	100mΩ @ 3.7V - reduces conduction loss and improves efficiency at high LED currents.
Thermal Shutdown Threshold	170°C - protects die during sustained overloads; 20°C hysteresis prevents oscillation near trip point.
PWM Dimming Frequency	100Hz to 20kHz - supports flicker-free dimming compatible with camera-based ADAS systems.
AEC-Q100 Grade	Grade 1 (−40°C to +125°C T_J) - qualified for under-hood and exterior lighting environments.

Pinout & Package

TSSOP28-EP package (5.0mm × 9.7mm, 0.65mm pitch) with exposed thermal pad; optimized for automotive PCB layouts requiring high thermal reliability and EMI robustness.

Pin/Terminal	Circuit Role	Design Meaning
DIM (Pin 1)	PWM brightness control input	Accepts 100Hz–20kHz signal; internally pulled low; drive high to disable dimming.
EN (Pin 4)	Enable/disable control	Logic-high (>1.2V) enables operation; logic-low (<0.4V) forces shutdown with 1μA quiescent current.
FREQ/SYNC (Pin 3)	Frequency programming & synchronization	Resistor-to-GND sets f_SW; external clock input synchronizes multiple devices to reduce beat frequencies.
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 14–19)	LED string cathode connections	Each drives one LED string via internal current source; supports common-anode architecture.
FF (Pin 12)	Fault flag output	Open-drain signal pulled low during OVP, OTP, LED open/short, or inductor short; requires external pull-up.
OVP (Pin 15)	Over-voltage protection sense	Voltage divider from V_OUT sets threshold (1.9–2.1V typical); must not be left floating.
SD (Pin 23)	External PMOS disconnect control	Drives gate of external high-side PMOS to isolate V_IN during faults; sinks 40–70µA.

Key Features

Feature	Design Value
Spread-spectrum modulation	FSP pin adjusts jitter ratio (1/20 to 1/32 of center frequency) to reduce peak EMI by >10dB in CISPR25 Class 5 tests.
LED short/open detection	STH pin sets short-threshold (default 5V if floated); detects open strings within 7.7ms and latches fault on FF pin.
Thermal current foldback	LED current automatically decreases above 125°C junction temperature-prevents thermal runaway without external sensors.
Disconnect function	SD pin actively pulls external PMOS gate low during faults, isolating input power to meet ASIL-B safety requirements.
EMI-optimized layout support	Separate AGND and PGND pins minimize noise coupling; exposed pad tied to GND plane lowers θ_JA to 32°C/W (TSSOP28-EP).

Applications

Automotive Rear Combination Lamp

Dynamic Turn Signal Module

Use Scenario: Integrated tail light assembly with brake, turn, reverse, and position functions using multi-string white LEDs.

IC Role / Device Role / Timing Role: Primary LED current controller managing six independent strings; regulates current while boosting from 12V battery to ≥34V LED stack voltage.

Use Value: ±2.5% current matching eliminates visible brightness mismatch between left/right lamps; AEC-Q100 Grade 1 ensures operation at −40°C startup and 125°C under-hood ambient.

Use Scenario: Sequential amber turn signal with animated sweep effect across multiple LED segments.

IC Role / Device Role / Timing Role: Constant-current driver enabling precise PWM dimming (100Hz–20kHz) synchronized across all six channels for smooth animation timing.

Use Value: 20kHz max dimming frequency avoids camera flicker in ADAS rear-view systems; spread-spectrum reduces radiated emissions below CISPR25 Class 5 limits.

CHMSL (Center High-Mount Stop Lamp)

Adaptive Brake Light System

Use Scenario: High-mounted stop lamp mounted on rear window or spoiler, requiring high reliability and thermal resilience.

IC Role / Device Role / Timing Role: Boost converter + current regulator delivering stable 100mA per string despite wide input voltage swing (6V–16V) during engine cranking.

Use Value: 3.5V–36V input range accommodates cold-crank dips and load-dump transients; thermal foldback maintains safe operation at elevated ambient temperatures.

Use Scenario: Intelligent brake light that intensifies brightness or flashes during emergency deceleration detected via CAN bus.

IC Role / Device Role / Timing Role: Fast-response current driver accepting EN and DIM commands from microcontroller to modulate intensity within <10ms.

Use Value: 500µs startup delay and immediate FF assertion on fault enable functional safety monitoring; SD pin supports fail-safe power isolation per ISO 26262.

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
MPQ7220GR-AEC1	Same silicon, QFN-24 (4mm×4mm) package; lower θ_JA (42°C/W) but smaller thermal pad area.	Better for space-constrained modules; less suitable for high-power continuous operation without aggressive copper pour.	Select GR variant when board area is limited and thermal margin ≥15°C is available at 100mA/channel.
TPS92692QPWPRQ1	TI part with 4-channel capability, external MOSFET required, no integrated spread spectrum, higher quiescent current (12mA vs. 5mA).	Requires additional external components for 6-string operation; lacks built-in EMI reduction features.	Choose only if existing design uses TI ecosystem and needs pin compatibility with legacy TPS926xx family.

Compared with MPQ7220GR-AEC1, the GF variant offers superior thermal dissipation (3.9W vs. 2.97W) and larger exposed pad for chassis-level heat sinking; versus TPS92692QPWPRQ1, MPQ7220GF-AEC1 delivers higher integration, lower IQ, and certified CISPR25 Class 5 compliance out-of-box.

Availability

MPQ7220GF-AEC1-P is available at Aetrix Electronics and suitable for automotive rear lighting, dynamic turn signal modules, CHMSL systems, and adaptive brake light designs requiring stable component supply with AEC-Q100 traceability.

Supply support for MPQ7220GF-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 targets automotive exterior lighting applications, emphasizing AEC-Q100 qualification, high-current accuracy, robust fault handling, and EMI-compliant operation in harsh vehicle environments.

FAQ

What is the maximum total output power supported by MPQ7220GF-AEC1-P?

The device supports up to 6 × 100mA = 600mA total LED current. With typical V_LED = 34V (6P12S configuration), maximum output power is ~20.4W. Thermal limits (T_J ≤ 125°C) and PCB copper area determine practical sustained power; TSSOP28-EP package allows 3.9W continuous dissipation at 25°C ambient.

How does the MPQ7220GF-AEC1-P handle LED string open-circuit faults?

It detects open strings within 7.7ms using internal comparators monitoring LEDx node voltage. Upon detection, it asserts the FF pin low, disables SW switching, and holds the condition until EN is cycled. No automatic recovery occurs-system-level reset is required to resume operation.

Can the MPQ7220GF-AEC1-P drive mixed-color LED strings (e.g., red + amber)?

Yes-each channel independently regulates current regardless of forward voltage differences. Red (1.8V) and amber (2.1V) strings can be driven simultaneously; headroom voltage is managed per string by the internal current source architecture, not by shared boost output.

Is external compensation required for the MPQ7220GF-AEC1-P's control loop?

Yes-COMP (Pin 11) requires an external RC network (typically 1nF capacitor + 10kΩ resistor to AGND) to stabilize the current-mode control loop. The exact values depend on inductor value, output capacitance, and desired phase margin; MPS EVB design files provide validated component values.

Does the MPQ7220GF-AEC1-P support analog dimming in addition to PWM?

No-it supports only PWM dimming via the DIM pin. Analog dimming (e.g., ISET voltage modulation) is not implemented; attempting to vary ISET dynamically causes unstable regulation and violates current-matching specifications.

What is the role of the SD pin during normal operation?

During normal operation, SD remains high-impedance (floating). It only actively pulls low during fault conditions (OVP, OTP, LED short/open, inductor short) to gate off an external high-side PMOS, thereby disconnecting VIN from the system-a critical feature for ASIL-B compliant architectures.

How is spread-spectrum modulation configured on the MPQ7220GF-AEC1-P?

Connect a resistor from FSP (Pin 27) to AGND. If FSP voltage <0.4V, jitter = 1/20 of f_SW; if 0.45V–1.4V, jitter = 1/32; if >1.4V or open, spread spectrum is disabled. Resistor value is calculated using 18µA sink current (e.g., 22kΩ → 0.4V).

MPQ7220GF-AEC1-P Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: 28-TSSOP (0.173", 4.40mm Width) 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:: 28-TSSOP-EP

MPQ7220GF-AEC1-P FAQ

1.How can I place an order for MPQ7220GF-AEC1-P through Aetrix?

Please submit a Request for Quotation (RFQ) for MPQ7220GF-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 MPQ7220GF-AEC1-P reliable?

The price and inventory of MPQ7220GF-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 MPQ7220GF-AEC1-P is usually 5 days.

3.What payment methods are accepted for MPQ7220GF-AEC1-P?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ7220GF-AEC1-P transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPQ7220GF-AEC1-P?

MPQ7220GF-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPQ7220GF-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 MPQ7220GF-AEC1-P?

For technical support, including MPQ7220GF-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ7220GF-AEC1-P requirements.

6.How does Aetrix verify that MPQ7220GF-AEC1-P is sourced from the original manufacturer or authorized distributors?

All MPQ7220GF-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 MPQ7220GF-AEC1-P meets industry standards.

7.What is the process for return or replacement of MPQ7220GF-AEC1-P?

All MPQ7220GF-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ7220GF-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 MPQ7220GF-AEC1-P part is unused and in its original packaging.

Return procedure for MPQ7220GF-AEC1-P:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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