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Diodes Incorporated AP3041MTR-G1
- Part No.:
- AP3041MTR-G1
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP3041MTR-G1.pdf
- Description:
- IC LED DRIVER CTRLR PWM 1A 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,975
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Product details
Overview
AP3041MTR-G1 from Diodes Incorporated is a current-mode, high-voltage, low-side MOSFET controller optimized for boost-based WLED drivers in medium-sized LCD panels. It operates from 5V to 27V input, supports 100kHz–1MHz adjustable switching frequency, delivers 1A peak gate drive, and integrates UVLO, OVP, LED short/open detection, overcurrent, overtemperature, and soft-start with programmable delay. Used in backlight power stages of LED TVs and display modules.
For engineers reviewing the AP3041MTR-G1 datasheet, AP3041MTR-G1 pinout, AP3041MTR-G1 application, or AP3041MTR-G1 equivalent, key selection criteria include its 500mV current-sense threshold, 500mV FB reference, 90% max duty cycle, SOIC-16 thermal performance (θJA = 82°C/W), and fault-flag signaling for system-level protection coordination.
Technical Context
The AP3041 implements current-mode control using an internal error amplifier (680 V/V gain, 500 μA/V transconductance) and slope-compensated PWM logic with leading-edge blanking. Its oscillator uses an external RT resistor to set frequency between 100kHz and 1MHz, while CT sets shutdown delay via a 5μA current source charging an external capacitor.
Protection architecture includes dual-threshold OVP (2.25V nominal, 10μA hysteresis current), UVLO (1.25V threshold with 10μA hysteresis), LED short-to-ground detection (FB low threshold = 0.3V), and diode short detection (CS high threshold = 1.75V), all latching on fault and asserting FAULT/FLAG pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 27V - Supports wide-input industrial and display supply rails without pre-regulation. |
| Switching Frequency | 100kHz to 1MHz - Adjustable via RT resistor; enables EMI optimization and inductor size trade-offs. |
| Current Sense Threshold | 500mV ±20mV - Sets precise peak switch current limit; compatible with standard shunt resistors. |
| Feedback Reference Voltage | 500mV ±10mV - Enables accurate LED current regulation via external FB divider. |
| Gate Drive Capability | 1A peak, 20ns rise/fall - Drives medium-power N-channel MOSFETs directly with minimal external components. |
| Max Duty Cycle | 90% - Supports high step-up ratios required for multi-string WLED boost topologies. |
| Thermal Shutdown | +160°C with +20°C hysteresis - Prevents latch-up during sustained overload or poor heatsinking. |
Pinout & Package
AP3041MTR-G1 is housed in a 16-pin SOIC package (body width 3.9mm, pitch 1.27mm), rated for −40°C to +85°C operating temperature and featuring RoHS-compliant, halogen-free "Green" construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 CT | Shutdown Delay Timing | Charged by 5μA internal current source; sets fault recovery delay before restart. |
| 2 OV | Overvoltage Protection Input | Monitors output voltage via resistor divider; triggers latch-off at 2.25V threshold. |
| 3 UVLO | Undervoltage Lockout Input | Configurable startup/shutdown level using two external resistors; 1.25V threshold. |
| 4 EN | Enable Control | Active-high logic input; 2.5V threshold enables full operation or disables regulator. |
| 5 VIN | Main Power Input | Accepts 5–27V DC; requires local ceramic bypass capacitor for stability. |
| 6 VCC | Bias Supply Output | Internally regulated ~10V rail; powers internal circuitry and must be bypassed to GND. |
| 7 OUT | MOSFET Gate Driver Output | 1A peak sink/source; drives low-side N-MOSFET gate with 20ns edge rates. |
| 8 GND | Analog/Digital Ground | Common return for CS, FB, SC, SS/COMP, and power paths; critical for noise immunity. |
| 9 FAULT | Fault Signal Output | Open-drain active-low output indicating OVP, UVLO, OTP, or short-circuit faults. |
| 10 RT | Frequency Setting | Resistor-to-GND sets oscillator frequency; 82kΩ yields ~300kHz typical. |
| 11 CS | Current Sense Input | Connects to MOSFET source shunt; 500mV threshold triggers cycle-by-cycle current limiting. |
| 12 SC | Slope Compensation | Resistor-to-GND programs compensation ramp to prevent subharmonic oscillation. |
| 13 SS/COMP | Soft-Start & Error Amp Output | Internal 20μA current charges soft-start cap; also serves as EA output for loop compensation. |
| 14 FB | Voltage Feedback Input | 500mV reference; connects to LED string cathode via resistor divider for current regulation. |
| 15 PWM | PWM Dimming Interface | Accepts external PWM signal (2.5V threshold); synchronizes dimming with boost switching. |
| 16 FLAG | Fault Status Indicator | Active-low open-drain output mirroring FAULT; used to disable upstream power path on failure. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Overvoltage Protection | OVP threshold set externally via resistor divider; latches off driver above 2.25V to protect LEDs and MOSFET. |
| LED Short-Circuit Detection | Dual FB thresholds (0.3V low, 1.25V high) detect LED+ or LED− short-to-ground, enabling fast fault response. |
| Adjustable Soft-Start | 20μA internal current source charges external capacitor; prevents inrush current and output overshoot. |
| Integrated Slope Compensation | SC pin accepts resistor to GND to inject programmable ramp, stabilizing current-mode control at >50% duty cycle. |
| Fault Status Signaling | Separate FAULT and FLAG outputs provide redundant, system-level fault indication with configurable pull-up options. |
Applications
| LED TV Backlight | LCD Monitor Module |
|---|---|
|
Use Scenario: Driving 4–8 parallel WLED strings in 32–55 inch LCD TVs with PWM dimming. IC Role / Device Role / Timing Role: Primary boost controller managing LED current regulation, fault monitoring, and dimming synchronization. Use Value: Enables high-efficiency (>90%) constant-current drive with real-time OVP, short-circuit, and thermal protection to ensure panel reliability. |
Use Scenario: Powering dual-zone WLED backlights in commercial-grade 24–32 inch monitors. IC Role / Device Role / Timing Role: Low-side gate driver and protection supervisor for discrete boost converter stage. Use Value: Delivers stable current regulation across temperature (±1% FB drift) and supports dynamic dimming up to 2kHz without flicker. |
| Industrial Display Panel | Medical Imaging Display |
|
Use Scenario: Backlight control in ruggedized HMI displays operating in extended temperature environments. IC Role / Device Role / Timing Role: Fault-tolerant boost controller with latch-off protection and diagnostic flag outputs. Use Value: Ensures fail-safe shutdown under LED open/short, diode failure, or overtemperature-critical for unattended operation. |
Use Scenario: High-reliability backlight for DICOM-compliant medical LCDs requiring consistent luminance. IC Role / Device Role / Timing Role: Precision current regulator with <±2% total LED current accuracy over line/load/temperature. Use Value: Maintains calibrated brightness via tight 500mV FB reference and low-drift current sense (±20mV tolerance). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AL8853 | Successor device with enhanced EMI performance, lower quiescent current (1.2mA vs. 5mA), and integrated bootstrap diode. | Designed for newer LED TV platforms requiring tighter EMC compliance and higher efficiency at light load. | Preferred for new designs; pin-compatible but requires updated layout for bootstrap integration. |
| LM3410X | Single-stage boost controller with fixed 1.6MHz frequency, no OVP latch, and no LED-specific fault detection. | Limited to simpler lighting applications without comprehensive WLED protection requirements. | Only suitable where full AP3041 fault coverage is not required; lacks FLAG, UVLO programming, and LED short diagnostics. |
Compared with AP3041MTR-G1, AL8853 offers improved efficiency and integrated features for next-gen designs, while LM3410X provides basic boost control without WLED-specific protections-making AP3041 the optimal choice for legacy display systems requiring robust, field-proven fault management.
Availability
AP3041MTR-G1 is available at Aetrix Electronics and suitable for LED TV backlighting, LCD monitor modules, and industrial display panels requiring stable component supply and long-term lifecycle support.
Supply support for AP3041MTR-G1 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-performance power management, signal integrity, and protection solutions.
The AP3041 belongs to Diodes' WLED backlight controller product line, engineered specifically for medium-format LCD panels requiring high-voltage boost, precise current regulation, and comprehensive fault coverage in cost-sensitive consumer and industrial displays.
FAQ
What is the recommended minimum output capacitance for stable AP3041MTR-G1 operation?
Diodes specifies a minimum 10μF ceramic output capacitor for stable regulation and transient response. Larger values (e.g., 22–47μF) improve ripple suppression and fault ride-through but require verification of ESR and voltage rating against maximum output voltage (≤30V). Layout must minimize loop inductance between COUT, diode, and GND.
How does the AP3041MTR-G1 handle PWM dimming at frequencies above 1kHz?
The AP3041 supports PWM dimming up to 2kHz with minimal current droop, thanks to its fast 20ns gate drive and synchronized PWM input (Pin 15). At ≥1kHz, the internal LEB (leading-edge blanking) ensures accurate current sensing during dimming transitions, maintaining ≤3% LED current variation across duty cycles per Diodes' characterization data.
Can the UVLO threshold be adjusted independently for turn-on and turn-off?
Yes-UVLO hysteresis is implemented using two external resistors: one from UVLO (Pin 3) to VIN and another from UVLO to GND. The rising threshold is 1.25V; hysteresis current is 10μA, allowing independent setting of startup (VIN_RISE = 1.25V × (R1+R2)/R2) and shutdown (VIN_FALL = 1.25V × (R1+R2)/R2 − 10μA×R1) voltages.
Is the AP3041MTR-G1 qualified for automotive applications?
No-the AP3041MTR-G1 is specified for industrial and consumer temperature range (−40°C to +85°C) and is not AEC-Q100 qualified. Diodes explicitly states that automotive-grade variants require separate qualification (PPAP, IATF 16949 manufacturing) and recommends contacting their automotive team for approved alternatives like the AL8860Q.
AP3041MTR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Controller
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 5V
- Voltage - Supply (Max):
- 27V
- Voltage - Output:
- -
- Current - Output / Channel:
- 1A
- Frequency:
- 100kHz ~ 1MHz
- Dimming:
- PWM
- Applications:
- Lighting
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
AP3041MTR-G1 FAQ
1.How can I place an order for AP3041MTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP3041MTR-G1 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 AP3041MTR-G1 reliable?
The price and inventory of AP3041MTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP3041MTR-G1 is usually 5 days.
3.What payment methods are accepted for AP3041MTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP3041MTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP3041MTR-G1?
AP3041MTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP3041MTR-G1 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 AP3041MTR-G1?
For technical support, including AP3041MTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP3041MTR-G1 requirements.
6.How does Aetrix verify that AP3041MTR-G1 is sourced from the original manufacturer or authorized distributors?
All AP3041MTR-G1 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 AP3041MTR-G1 meets industry standards.
7.What is the process for return or replacement of AP3041MTR-G1?
All AP3041MTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP3041MTR-G1, 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 AP3041MTR-G1 part is unused and in its original packaging.
Return procedure for AP3041MTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP3041MTR-G1 Tags
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