Diodes Incorporated AP3064MTR-G1
- Part No.:
- AP3064MTR-G1
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP3064MTR-G1.pdf
- Description:
- IC LED DRVR CTRLR PWM 220MA 16SO
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
AP3064MTR-G1 from Diodes Incorporated is a four-channel, boost-type WLED backlight driver IC with integrated 4-string current sinks, 4.5–33V input range, ±1.5% typical string-to-string current matching, and programmable 100kHz–1MHz switching frequency. It delivers up to 220mA per string for LCD monitor and TV backlighting applications.
For engineers reviewing the AP3064MTR-G1 datasheet, AP3064MTR-G1 pinout, AP3064MTR-G1 application, or AP3064MTR-G1 equivalent, key selection criteria include LED current programming via ISET resistor, OVP threshold at 2.0V, PWM dimming support up to 20kHz, open/short LED protection logic, and SOIC-16 Green RoHS package compatibility.
Technical Context
The AP3064 implements a current-mode boost controller architecture with cycle-by-cycle overcurrent protection (540mV CS threshold), programmable soft-start via COMP pin, and dual-level fault detection: fast-response OVP (2.0V trigger, 250mV hysteresis) and latched shutdown for abnormal conditions (3.2V OVP-SH). Its 4 independent current sinks operate with VLED_REG ≥230mV regulation headroom.
It integrates analog PWM dimming control (DIM pin), status reporting (open/short LED, OVP, OTP), and multi-layer protection including Schottky diode/inductor short detection (800mV CS threshold, 16-cycle latch), VOUT short/diode-open monitoring (<0.1V OVP pin), and thermal shutdown at +160°C with +140°C recovery hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 33V - supports wide-input industrial and display power rails without pre-regulation. |
| Max Output Current per String | 220mA - enables driving high-brightness WLED strings in parallel configurations. |
| Current Matching Accuracy | ±1.5% (typ) - ensures uniform brightness across 4 backlight strings without external calibration. |
| Switching Frequency Range | 100kHz to 1MHz - allows optimization of inductor size (high-freq) vs. efficiency (low-freq). |
| OVP Threshold | 2.0V (±0.1V) - sets output overvoltage limit via external resistor divider on OVP pin. |
| PWM Dimming Frequency | 100Hz to 20kHz - supports flicker-free dimming down to 1% duty cycle with stable current regulation. |
| Thermal Shutdown | +160°C (latch) / +140°C (recovery) - protects against sustained overload or poor heatsinking. |
| Shutdown Supply Current | 0.1µA (typ) - minimizes standby power loss in always-on display systems. |
Pinout & Package
AP3064MTR-G1 is supplied in a lead-free, RoHS-compliant SOIC-16 package (9.8 × 3.9 × 1.5mm body, 1.27mm pitch), optimized for surface-mount assembly and thermal performance (θJA = 100°C/W).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CH4) | LED current sink channel 4 | Drives fourth WLED string; left open if unused; supports ≤220mA sink with 230mV compliance voltage. |
| 2 (ISET) | Current reference setting input | Connects to GND via RISET to program max current: ILED = 1200 mA × (12kΩ / RISET). |
| 3 (OVP) | Overvoltage protection sense | Monitors output via resistor divider; triggers shutdown at 2.0V; 250mV hysteresis prevents chatter. |
| 4 (RT) | Frequency control | Resistor to GND sets fSW: f ≈ 52 MHz / RRT(kΩ); 100kΩ yields ~520kHz. |
| 5 (EN) | Enable/disable control | Logic-high (>2.4V) enables operation; <0.5V disables IC, reducing supply current to <3µA. |
| 6 (CS) | Current sense input | Monitors MOSFET source voltage; trips at 540mV for OCP, 800mV for Schottky/inductor short. |
| 7 (OUT) | Gate drive output | Drives external N-MOSFET gate with 5V or VIN−0.5V swing; 30–50ns rise/fall time. |
| 8 (VCC) | Internal LDO output | 5V regulated supply for internal circuitry; requires ≥2.2µF ceramic bypass to GND. |
| 9 (VIN) | Main power input | Accepts 4.5–33V; requires local 10µF ceramic capacitor for input stability. |
| 10 (STATUS) | Fault status output | Open-drain logic-low indicates open LED, short LED, OVP, OTP, or VOUT short condition. |
| 11 (COMP) | Compensation & soft-start | Connects to RC network for loop stability; also controls soft-start ramp time. |
| 12 (DIM) | PWM dimming input | Accepts 2.5V/0.3V logic; modulates all enabled channels simultaneously with 1%–100% duty control. |
| 13 (CH1) | LED current sink channel 1 | Primary WLED string driver; identical electrical specs to CH4; open if unused. |
| 14 (CH2) | LED current sink channel 2 | Second independent WLED sink; shares same current programming and protection as CH1. |
| 15 (GND) | Power and signal ground | Common return path for VIN, VCC, ISET, RT, EN, CS, STATUS, DIM, and all CHx sinks. |
| 16 (CH3) | LED current sink channel 3 | Third WLED string driver; completes 4-channel capability; matches CH1–CH4 performance. |
Key Features
| Feature | Design Value |
|---|---|
| Four independent current sinks | Enables simultaneous, matched-current driving of up to four WLED strings without external current mirrors. |
| Programmable OVP with hysteresis | 2.0V threshold + 250mV hysteresis allows precise, chatter-free output voltage limiting via two-resistor divider. |
| Integrated open/short LED protection | Detects open strings by monitoring CHx pin voltage (<100mV) and shorts by sensing >7.3V at CHx during dim-on mode. |
| VOUT short / Schottky diode open detection | Triggers shutdown when OVP pin falls below 0.1V, protecting against catastrophic output faults. |
| External PWM dimming interface | Supports industry-standard 100Hz–20kHz PWM signals on DIM pin for seamless integration into display timing controllers. |
| Lead-free & halogen-free packaging | SOIC-16 meets RoHS 2 (2011/65/EU) and Diodes' "Green" standard (<900ppm Br/Cl, <1000ppm Sb). |
Applications
| LCD Monitor Backlight | LCD Display Module |
|---|---|
|
Use Scenario: Driving 4 parallel strings of 10–15 white LEDs behind 15–24-inch LCD panels with dynamic dimming. IC Role / Device Role / Timing Role: Four-channel constant-current boost controller managing LED string voltage up to 60V and regulating total backlight luminance. Use Value: ±1.5% current matching eliminates visible brightness gradients; 220mA/string supports high-luminance modes without thermal derating. |
Use Scenario: Compact embedded display module requiring low-profile, single-chip WLED driver with minimal external components. IC Role / Device Role / Timing Role: Integrated boost converter + current sink IC providing regulated LED current and fault reporting via STATUS pin. Use Value: SOIC-16 footprint simplifies PCB layout; UVLO (3.8V turn-on) ensures reliable startup from 5V or 12V rails. |
| LCD TV Backlight | Industrial HMI Display |
|
Use Scenario: Main backlight driver for 32–43-inch LCD TVs using edge-lit or direct-lit WLED arrays with local dimming zones. IC Role / Device Role / Timing Role: High-efficiency boost controller delivering up to 880mA total (4×220mA) with programmable frequency for EMI management. Use Value: 100kHz–1MHz adjustable switching frequency enables optimal trade-off between inductor size and conversion efficiency. |
Use Scenario: Ruggedized human-machine interface display in factory automation equipment requiring extended temperature operation. IC Role / Device Role / Timing Role: Fault-tolerant WLED driver with latched OTP (+160°C), OVP, and open/short LED detection for unattended operation. Use Value: -40°C to +85°C ambient rating and robust protection suite ensure continuous backlight function in harsh environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar four-channel WLED boost driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AL8862W-7 | Single-channel, 1.5A max; no integrated current matching; requires external current sense resistors per string. | Suitable only for designs where strings are driven separately or matched externally. | Select when lower channel count suffices and board space permits discrete current sensing. |
| LM3409QMY/NOPB | Single-channel, 3A capable; no built-in current sinks; requires external FET and current mirror for multi-string use. | Requires additional ICs or discrete circuitry to achieve 4-string operation with matching. | Choose for higher per-string current needs (>220mA) and willingness to add complexity for flexibility. |
Compared with AL8862W-7 and LM3409QMY/NOPB, AP3064MTR-G1 provides native 4-channel integration, ±1.5% matching, and unified protection-reducing BOM count by ≥3 ICs and eliminating manual current calibration in multi-string backlight designs.
Availability
AP3064MTR-G1 is available at Aetrix Electronics and suitable for LCD monitor backlighting, LCD display modules, and LCD TV backlight systems requiring stable component supply, long-term lifecycle support, and RoHS/Green compliance.
Supply support for AP3064MTR-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 semiconductor company specializing in discrete, analog, and mixed-signal ICs for power management, signal integrity, and connectivity applications.
The AP3064 belongs to Diodes' LED backlight driver product line, engineered specifically for high-reliability, multi-string WLED applications in consumer and industrial displays with integrated protection and dimming control.
FAQ
What is the minimum input voltage required for AP3064MTR-G1 to start switching?
The AP3064MTR-G1 features under-voltage lockout (UVLO) with a rising threshold of 3.8V and 200mV hysteresis. It begins normal operation only when VIN rises above 3.8V; below 3.6V, the device remains disabled. This ensures stable startup and prevents erratic behavior during brown-out conditions.
How is LED current programmed, and what resistor value sets 120mA per string?
LED current is set by connecting a resistor (RISET) from ISET pin to GND. The formula is ILED = 1200 mA × (12 kΩ / RISET). For 120mA per string, RISET = 12 kΩ × (1200 / 120) = 120 kΩ. A 120kΩ ±1% resistor yields nominal 120mA with ±1.5% matching across strings.
Does AP3064MTR-G1 support analog dimming, or only PWM dimming?
The AP3064MTR-G1 supports only digital PWM dimming via the DIM pin; it does not provide analog (DC) dimming capability. The DIM pin accepts logic-level PWM signals from 100Hz to 20kHz, enabling precise 1%–100% brightness control by modulating the duty cycle of all active LED strings simultaneously.
What happens when an LED string opens, and how is the fault signaled?
When any LED string opens, the corresponding CHx pin voltage drops below 100mV. The AP3064 disables that channel and pulls the open-drain STATUS pin low. If all strings open, VOUT rises until OVP triggers at 2.0V, causing full shutdown with latched fault. Toggle EN or cycle VIN to reset.
AP3064MTR-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:
- Obsolete
- Type:
- DC DC Controller
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- No
- Number of Outputs:
- 4
- Voltage - Supply (Min):
- 4.5V
- Voltage - Supply (Max):
- 33V
- Voltage - Output:
- 60V
- Current - Output / Channel:
- 220mA
- Frequency:
- 100kHz ~ 1MHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
AP3064MTR-G1 FAQ
1.How can I place an order for AP3064MTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP3064MTR-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 AP3064MTR-G1 reliable?
The price and inventory of AP3064MTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP3064MTR-G1 is usually 5 days.
3.What payment methods are accepted for AP3064MTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP3064MTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP3064MTR-G1?
AP3064MTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP3064MTR-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 AP3064MTR-G1?
For technical support, including AP3064MTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP3064MTR-G1 requirements.
6.How does Aetrix verify that AP3064MTR-G1 is sourced from the original manufacturer or authorized distributors?
All AP3064MTR-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 AP3064MTR-G1 meets industry standards.
7.What is the process for return or replacement of AP3064MTR-G1?
All AP3064MTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP3064MTR-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 AP3064MTR-G1 part is unused and in its original packaging.
Return procedure for AP3064MTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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