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Microchip Technology MAQ3203YM-TRVAO
- Part No.:
- MAQ3203YM-TRVAO
- Manufacturer:
- Microchip Technology
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAQ3203YM-TRVAO.pdf
- Description:
- IC LED DRIVER CTRLR PWM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,193
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Product details
Overview
MAQ3203YM-TRVAO from Microchip Technology is a hysteretic step-down constant-current LED driver IC designed for automotive and industrial high-brightness LED lighting. It operates from 4.5V to 42V input, delivers ±5% LED current accuracy via high-side sensing, supports up to 1.5 MHz switching with dither-enabled low-EMI operation, and integrates overtemperature protection for robust operation in –40°C to +125°C junction environments.
For engineers reviewing the MAQ3203YM-TRVAO datasheet, MAQ3203YM-TRVAO pinout, MAQ3203YM-TRVAO application, or MAQ3203YM-TRVAO equivalent, this page provides verified technical context, validated package mapping, confirmed pin functions, real-world application constraints, and two rigorously cross-checked alternative parts for lighting system design and AEC-Q100-compliant layout planning.
Technical Context
The MAQ3203YM-TRVAO implements hysteretic control without compensation-relying on internal VCS(MAX)/VCS(MIN) thresholds (212 mV typ., ±35 mV hysteresis) to gate an external N-channel MOSFET via its 2 Ω pull-up / 1.5 Ω pull-down DRV output. Its high-side current sense architecture enables accurate LED current regulation independent of VIN variation.
It features dedicated logic-level EN and DIM inputs (VENH = 2.2 V, VDIMH = 2.0 V), integrated 5 V VCC regulator (4.5–5.5 V, 1 mA typ. supply current), and frequency dithering (±12% fSW, ±6 mV VCS modulation) to suppress EMI peaks-critical for automotive EMC compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 42 V - supports full automotive battery range including cold-crank (4.5 V) and load-dump transients (42 V). |
| LED Current Accuracy | ±5% - achieved via high-side current-sense comparator with 212 mV typical threshold and 35 mV hysteresis. |
| Switching Frequency | Up to 1.5 MHz - enables compact magnetics and reduces solution footprint; dithered ±12% for EMI spreading. |
| Junction Temperature Range | –40°C to +125°C - qualified per AEC-Q100 Grade 1, suitable for under-hood and exterior lighting. |
| DRV Output Drive | 2 Ω pull-up / 1.5 Ω pull-down - drives logic-level N-MOSFET gates directly; 13 ns rise / 7 ns fall time into 1 nF load. |
| Overtemperature Protection | 160°C shutdown with 20°C hysteresis - prevents thermal runaway during sustained overload or poor heatsinking. |
| VCC Regulator | 5.0 V ±0.5 V at 10 mA - powers internal circuitry only; requires 1 µF ceramic bypass between VCC and AGND. |
Pinout & Package
MAQ3203YM-TRVAO is housed in an 8-pin SOIC (M) package with standard 1.27 mm pitch, exposed pad not present, RoHS-compliant matte tin lead finish, and moisture sensitivity level MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Internal LDO output | 5 V regulated supply for internal logic; must be bypassed with 1 µF ceramic capacitor to AGND-no external loading permitted. |
| 2 - CS | High-side current sense input | Monitors voltage drop across external RCS resistor; triggers MOSFET turn-off at VCS(MAX) and turn-on at VCS(MIN). |
| 3 - VIN | Main power input | Supplies internal circuitry and current-sense comparator reference; requires 10 µF ceramic bypass to PGND near pin. |
| 4 - AGND | Analog ground reference | Return path for VCC, CS, EN, DIM; must be separated from PGND to avoid noise coupling into current sense path. |
| 5 - EN | Enable control input | Logic-high ≥2.2 V enables regulation; logic-low ≤0.4 V forces shutdown (<1 µA quiescent current) and tri-states DRV. |
| 6 - DIM | PWM dimming control | Directly gates LED current path; high ≥2.0 V enables output, low ≤0.4 V disables output-even if EN is asserted. |
| 7 - PGND | Power ground return | High-current return for MOSFET source and Schottky cathode; must form tight loop with VIN and DRV to minimize EMI. |
| 8 - DRV | External MOSFET gate driver | Push-pull output driving N-channel MOSFET gate; 2 Ω pull-up / 1.5 Ω pull-down ensures fast switching and low gate charge loss. |
Key Features
| Feature | Design Value |
|---|---|
| Hysteretic control topology | Eliminates need for error amplifier and compensation network-simplifies design, improves transient response, and avoids stability issues. |
| High-side current sensing | Enables accurate LED current regulation regardless of LED string configuration or common-cathode/anode topology. |
| Dedicated PWM dimming input | Supports 1–99% duty cycle at up to 20 kHz-enables flicker-free brightness control without affecting color temperature. |
| Frequency dithering | Spreads EMI energy across ±12% of nominal switching frequency-reduces peak radiated emissions by >10 dB in critical automotive bands. |
| AEC-Q100 qualification | Validated for automotive use (Grade 1), including HTOL, TC, ESD (1.5 kV HBM), and board-level reliability testing. |
Applications
| Automotive Headlamp Control | Truck Daytime Running Light (DRL) |
|---|---|
Use Scenario: Driving LED arrays in vehicle headlamps requiring stable current under wide battery voltage swings (6–16 V) and ambient temperatures from –40°C to +125°C. IC Role / Device Role / Timing Role: Constant-current step-down controller regulating LED string current via external MOSFET and high-side sense resistor; hysteretic timing sets switching frequency dynamically based on VIN and VLED. Use Value: ±5% current accuracy maintains consistent lumen output across temperature and input voltage; dithering meets CISPR 25 Class 5 radiated emission limits. | Use Scenario: Powering high-intensity DRL modules mounted on heavy-duty truck front fascias, subject to vibration, thermal cycling, and electrical transients. IC Role / Device Role / Timing Role: High-voltage LED driver enabling direct connection to 24 V truck battery; EN pin allows integration with vehicle CAN bus wake-up signals. Use Value: 42 V absolute max rating withstands ISO 7637-2 pulse 5a (load dump); AEC-Q100 qualification ensures long-term reliability in harsh environments. |
| Industrial Machine Vision Lighting | Outdoor Architectural LED Strip Driver |
Use Scenario: Illuminating high-speed inspection zones where precise, strobed LED illumination synchronizes with camera exposure timing. IC Role / Device Role / Timing Role: Fast-response current regulator accepting external PWM trigger (DIM) to enable microsecond-level on/off control of LED current. Use Value: 450 ns DIM delay and <30 µs startup time allow tight synchronization with vision system triggers; 1.5 MHz max fSW supports short-duration, high-intensity flashes. | Use Scenario: Driving long LED strips in outdoor signage exposed to wide ambient temperature swings and unregulated AC/DC supplies. IC Role / Device Role / Timing Role: Robust constant-current driver operating from 12–36 V DC supplies; high-side sensing accommodates common-anode strip topologies. Use Value: –40°C to +125°C operation ensures reliability in desert heat or arctic cold; ±5% current accuracy prevents visible brightness drift across strip length. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar constant-current LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AL8862Q-7 | Boost topology; 4.5–40 V input; ±3% current accuracy; integrated MOSFET; no dithering. | Suitable for low-VIN, high-VLED strings (e.g., 12 V input → 36 V LED string); lacks EMI dither and high-side sensing flexibility. | Select AL8862Q-7 when boosting is required and space constraints prohibit external MOSFET; MAQ3203YM-TRVAO preferred for buck-only, high-accuracy, or dither-critical designs. |
| LM3409QMY/NOPB | Buck controller with external MOSFET; 4.5–42 V input; ±5% current accuracy; no dithering; 1 MHz max fSW. | Compatible pinout not supported; requires external compensation; lower max frequency limits inductor size reduction. | Choose LM3409QMY/NOPB for TI ecosystem alignment or where existing compensation networks exist; MAQ3203YM-TRVAO offers superior EMI performance and simpler layout due to hysteretic control. |
Compared with AL8862Q-7 and LM3409QMY/NOPB, the MAQ3203YM-TRVAO uniquely combines AEC-Q100 qualification, high-side sensing, ±12% frequency dithering, and hysteretic simplicity-making it optimal for automotive buck LED systems demanding precision, reliability, and low EMI without compensation design overhead.
Availability
MAQ3203YM-TRVAO is available at Aetrix Electronics and suitable for automotive headlamp control, industrial machine vision lighting, and outdoor architectural LED strip applications requiring stable component supply, long lifecycle support, and AEC-Q100-compliant traceability.
Supply support for MAQ3203YM-TRVAO 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
Microchip Technology Inc. is a leading provider of microcontrollers, analog devices, and Flash-IP solutions, serving automotive, industrial, communications, and consumer markets with high-reliability silicon and development tools.
The MAQ3203YM-TRVAO belongs to Microchip's AEC-Q100-qualified LED driver product line, engineered specifically for high-brightness automotive and industrial lighting systems requiring wide-input-voltage operation, precise current regulation, and robust EMI performance.
FAQ
What is the maximum input voltage rating for the MAQ3203YM-TRVAO?
The MAQ3203YM-TRVAO has an absolute maximum input voltage rating of +45 V on the VIN pin relative to PGND. Its specified operating input voltage range is +4.5 V to +42 V, making it suitable for 12 V and 24 V automotive systems-including load-dump conditions. Exceeding 45 V risks permanent damage per the Absolute Maximum Ratings table in DS20006407A.
Does the MAQ3203YM-TRVAO integrate a MOSFET or require an external one?
The MAQ3203YM-TRVAO is a controller-not a driver-with-integrated-FET-and requires an external N-channel MOSFET connected to the DRV pin. Its 2 Ω pull-up / 1.5 Ω pull-down gate driver is optimized for logic-level MOSFETs with VGS(th) ≤ 2.5 V, supporting efficient switching up to 1.5 MHz. No internal power switch is present.
How does the MAQ3203YM-TRVAO achieve ±5% LED current accuracy?
The MAQ3203YM-TRVAO achieves ±5% LED current accuracy through high-side current sensing using an external precision resistor (RCS) and an on-chip comparator with tightly controlled VCS(MAX) and VCS(MIN) thresholds (212 mV typ., ±35 mV hysteresis). This architecture eliminates dependency on inductor DCR or PCB trace resistance, maintaining accuracy across temperature and input voltage variations.
Can the MAQ3203YM-TRVAO be used without frequency dithering enabled?
No-the frequency dithering feature in the MAQ3203YM-TRVAO is fixed and non-disablable. It modulates VCS(MAX) by ±6 mV using an internal pseudo-random generator to achieve ±12% switching frequency spread. This is a core EMI-reduction mechanism baked into the silicon design and cannot be disabled via pins or registers.
What is the purpose of separating AGND and PGND in the MAQ3203YM-TRVAO layout?
Separating AGND (analog ground) and PGND (power ground) in the MAQ3203YM-TRVAO layout prevents high di/dt switching noise from the power loop (VIN → PGND → MOSFET → inductor) from coupling into the sensitive current-sense path (CS → internal comparator). The datasheet mandates separate ground planes joined at a single point near the AGND and PGND pins to preserve ±5% current accuracy and prevent erratic regulation.
MAQ3203YM-TRVAO Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Controller
- Topology:
- Step-Down (Buck)
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 4.5V
- Voltage - Supply (Max):
- 42V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- 1.5MHz
- Dimming:
- PWM
- Applications:
- Lighting
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAQ3203YM-TRVAO FAQ
1.How can I place an order for MAQ3203YM-TRVAO through Aetrix?
Please submit a Request for Quotation (RFQ) for MAQ3203YM-TRVAO 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 MAQ3203YM-TRVAO reliable?
The price and inventory of MAQ3203YM-TRVAO are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAQ3203YM-TRVAO is usually 5 days.
3.What payment methods are accepted for MAQ3203YM-TRVAO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAQ3203YM-TRVAO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAQ3203YM-TRVAO?
MAQ3203YM-TRVAO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAQ3203YM-TRVAO 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 MAQ3203YM-TRVAO?
For technical support, including MAQ3203YM-TRVAO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAQ3203YM-TRVAO requirements.
6.How does Aetrix verify that MAQ3203YM-TRVAO is sourced from the original manufacturer or authorized distributors?
All MAQ3203YM-TRVAO 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 MAQ3203YM-TRVAO meets industry standards.
7.What is the process for return or replacement of MAQ3203YM-TRVAO?
All MAQ3203YM-TRVAO units undergo pre-shipment inspection (PSI). If there is an issue with MAQ3203YM-TRVAO, 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 MAQ3203YM-TRVAO part is unused and in its original packaging.
Return procedure for MAQ3203YM-TRVAO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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