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Microchip Technology MIC2292-15YML-TR
- Part No.:
- MIC2292-15YML-TR
- Manufacturer:
- Microchip Technology
- Category:
- LED Drivers
- Package:
- 8-VFDFN Exposed Pad, 8-MLF®
- Datasheet:
-
MIC2292-15YML-TR.pdf
- Description:
- IC LED DRVR RGLTR PWM 750MA 8MLF
- Quantity:
- Payment:
- Shipping:
Inventory:298
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Product details
Overview
MIC2292-15YML-TR from Microchip Technology is a high-frequency PWM white LED driver IC with internal Schottky diode and 15V overvoltage protection, operating at 1.6 MHz switching frequency, supporting 2.5–10V input and up to 34V output, and delivering 500 mA switch current in a 2 mm × 2 mm DFN-8 package for compact backlighting designs.
For engineers reviewing the MIC2292-15YML-TR datasheet, MIC2292-15YML-TR pinout, MIC2292-15YML-TR application, or MIC2292-15YML-TR equivalent, this page delivers verified technical context, exact pin functions, real-world LED driver use cases, and validated alternative options - all grounded in Microchip's DS20006598A specification.
Technical Context
The MIC2292-15YML-TR implements constant-frequency current-mode PWM control with a dedicated 1.6 MHz oscillator, slope compensation ramp generator, and gm error amplifier referenced to a precise 95 mV feedback voltage. Its bipolar output transistor and integrated Schottky diode enable efficient boost conversion with minimal external components.
It features dual-level protection: undervoltage lockout (2.1 V typical) and thermal shutdown (150°C threshold), while its 15V OVP circuit actively clamps output voltage during open-LED fault conditions - critical for safeguarding LEDs and external capacitors in portable backlight systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 1.6 MHz - enables ultra-small inductors and ceramic output capacitors, avoiding RF interference bands in handheld devices. |
| Feedback Voltage | 95 mV ±5% - sets LED current via external sense resistor (ILED = 95 mV / RFB), enabling accurate constant-current regulation. |
| OVP Threshold | 15 V - protects against overvoltage during LED open-circuit faults, allowing selection of lower-voltage-rated, smaller, lower-cost output capacitors. |
| Input Voltage Range | 2.5 V to 10 V - supports direct operation from single- or dual-cell Li-ion batteries and 3–4-cell alkaline/NiMH sources. |
| Switch Current Limit | 750 mA typical - ensures robust drive capability for multi-series white LED strings (e.g., 4–6 LEDs) without external current limiting. |
| Junction Temp Range | –40°C to +125°C - guarantees reliable operation in thermally demanding portable and automotive interior lighting environments. |
| Shutdown Current | <1 µA - minimizes battery drain during system sleep modes in always-on or low-power display applications. |
Pinout & Package
Package: 2 mm × 2 mm, 0.9 mm height, 8-pin DFN (ML) with exposed thermal pad (EP). RoHS-compliant, Pb-free matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT | Output node / OVP sense | Connects to output capacitor and LED anodes; monitors output voltage for 15V overvoltage protection activation. |
| 2: VIN | Main power input | Accepts 2.5–10V DC supply; powers internal circuitry and switch; requires local bypass capacitor near pin. |
| 3: EN | Enable control input | Logic HIGH (≥1.5 V) enables regulation; logic LOW disables switching and reduces quiescent current to <1 µA. |
| 4, 8: AGND/PGND | Analog & power ground returns | Separate AGND (pin 4) and PGND (pin 8) minimize noise coupling; both connect to system ground and EP. |
| 5: NC | No-connect terminal | Internally unconnected; must be left floating or tied to GND per layout best practices - no electrical function. |
| 6: FB | Current-sense feedback input | Connects to cathode of sense resistor; 95 mV reference sets LED current; supports PWM and analog dimming. |
| 7: SW | Switch node | Drives external inductor; carries high di/dt switching current; requires tight layout and low-inductance path to PGND. |
| EP | Exposed thermal pad | Must be soldered to PCB thermal plane for effective heat dissipation; electrically connected to PGND internally. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Schottky diode | Eliminates need for external rectifier, reducing BOM count, board area, and forward voltage drop losses. |
| Stable with ceramic capacitors | Enables use of small, low-ESR X5R/X7R MLCCs instead of bulkier electrolytics - critical for thin mobile form factors. |
| 15V output overvoltage protection | Dedicated OVP circuit triggers within DFN-8 package to clamp output at 15V during open-LED faults, preventing component overstress. |
| PWM and analog dimming support | EN pin accepts 100 Hz–10 kHz PWM for efficient on/off dimming; FB pin accepts DC control voltage for smooth, high-frequency intensity adjustment. |
| Internal current-mode control | Provides inherent cycle-by-cycle current limiting, fast transient response, and stable operation across wide input/output ranges without external compensation. |
Applications
| Cell Phone Backlighting | GPS System Display |
|---|---|
Use Scenario: Driving 3–4 series white LEDs in a slim smartphone LCD backlight module powered by a single-cell Li-ion battery (3.0–4.2 V). IC Role / Device Role / Timing Role: Constant-current boost regulator providing regulated 12–15V output at ~20 mA per string, synchronized to 1.6 MHz clock for EMI management. Use Value: Enables compact design using 22 µH inductor and 1 µF ceramic capacitor; 15V OVP allows 16V-rated output caps, reducing size and cost vs. higher-voltage alternatives. | Use Scenario: Powering high-brightness white LED backlight in ruggedized automotive-grade GPS navigation displays operating across –40°C to +85°C ambient. IC Role / Device Role / Timing Role: High-efficiency LED driver maintaining stable current despite wide input variation (3.3–9.5 V) from vehicle power rail and cold-cranking transients. Use Value: –40°C to +125°C junction rating and <1 µA shutdown current ensure reliability during extended parking mode; internal Schottky improves efficiency over discrete solutions. |
| Digital Camera Flash | IP Phone Status Indicators |
Use Scenario: Delivering short-duration, high-current pulses to white LED flash arrays in compact digital cameras requiring rapid turn-on (<50 µs) and precise intensity control. IC Role / Device Role / Timing Role: Fast-enabling boost converter with 50 µs turn-on time, supporting PWM dimming via EN pin at >1 kHz for flicker-free strobe control. Use Value: 1.6 MHz switching enables sub-10 µs current rise times; 750 mA switch limit supports burst-mode flash currents beyond steady-state ratings. | Use Scenario: Driving multiple low-current status LEDs (e.g., line active, mute, network link) on VoIP desk phones powered from PoE-derived 5V rails. IC Role / Device Role / Timing Role: Multi-string LED driver supplying independent constant current to 2–3 parallel LED branches from a shared 5V input. Use Value: Single-chip solution replaces discrete transistor+resistor drivers; 95 mV FB reference enables accurate current matching across strings without trimming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar white LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3409MYX/NOPB | External MOSFET driver; requires external Schottky diode and compensation network; 1.25V feedback voltage. | Higher BOM count and layout complexity; better suited for higher-power (>1A), adjustable-output LED systems. | Select when needing >500 mA output or programmable OVP; avoid if minimizing footprint and component count is critical. |
| TPS61061DRVR | 1.2 MHz switching; 28V OVP option; 400 mA switch current; 1.23V feedback voltage; no integrated Schottky. | Limited to lower-current LED strings; requires external diode; less optimal for space-constrained 15V OVP designs. | Choose for TI ecosystem compatibility or where 28V OVP suffices; not recommended for 15V-optimized, ultra-compact layouts requiring integrated diode. |
Compared with LM3409MYX/NOPB and TPS61061DRVR, the MIC2292-15YML-TR delivers superior integration (internal Schottky, 15V OVP, 95 mV FB), smaller 2×2 mm footprint, and faster 1.6 MHz switching - making it optimal for space- and efficiency-critical portable LED backlighting where 500 mA and 15V OVP are sufficient.
Availability
MIC2292-15YML-TR is available at Aetrix Electronics and suitable for cell phone backlighting, GPS display illumination, and digital camera flash applications requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for MIC2292-15YML-TR 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 is a global provider of microcontrollers, analog, FPGA, and timing solutions, with leadership in embedded control and power management semiconductors.
The MIC2292 product line delivers high-frequency, constant-current LED drivers optimized for portable backlighting - emphasizing minimal external components, thermal resilience, and robust fault protection in space-constrained consumer electronics.
FAQ
What is the switching frequency of the MIC2292-15YML-TR?
The MIC2292-15YML-TR operates at a fixed 1.6 MHz PWM switching frequency, as specified in Microchip's DS20006598A datasheet. This high frequency allows use of miniature inductors (e.g., 22 µH) and ceramic output capacitors, minimizing solution size and avoiding sensitive IF bands in RF-sensitive applications like smartphones and GPS units. The MIC2292-15YML-TR does not support frequency adjustment.
Does the MIC2292-15YML-TR include an integrated Schottky diode?
Yes, the MIC2292-15YML-TR integrates a Schottky diode rated for 34V reverse voltage and 150 mA forward current (0.8 V typical drop at 150 mA), eliminating the need for an external rectifier. This integration reduces bill-of-materials count, PCB area, and conduction losses - a key differentiator versus controllers like TPS61061DRVR that require external diodes. The MIC2292-15YML-TR leverages this feature for compact, efficient LED boost designs.
What is the purpose of the 15V OVP in the MIC2292-15YML-TR?
The 15V overvoltage protection (OVP) in the MIC2292-15YML-TR actively clamps the output voltage during LED open-circuit faults - such as disconnected or failed LEDs - preventing damage to the IC's SW pin and external components. It enables use of lower-voltage-rated, smaller, and lower-cost output capacitors (e.g., 16V-rated) in 4-LED applications (~12V nominal), a design advantage confirmed in Microchip's application guidance. The MIC2292-15YML-TR's OVP is hardware-based and internal to the DFN-8 package.
How is LED current set on the MIC2292-15YML-TR?
LED current is set by an external sense resistor connected between the FB pin and ground, using the formula ILED = 95 mV / RFB. The MIC2292-15YML-TR's precision 95 mV ±5% internal reference ensures accurate constant-current regulation across temperature and line/load variations. For example, a 4.75 Ω resistor sets 20 mA LED current. This method supports both PWM dimming (via EN pin) and analog dimming (via DC voltage injection at FB), as documented in DS20006598A Section 4.1.
What package type and thermal characteristics does the MIC2292-15YML-TR use?
The MIC2292-15YML-TR uses a 2 mm × 2 mm, 0.9 mm height, 8-pin DFN (ML) package with exposed thermal pad (EP), specified in Microchip's DS20006598A. Its junction-to-air thermal resistance (θJA) is 93°C/W, and it operates across –40°C to +125°C junction temperature. The EP must be soldered to a PCB thermal plane for effective heat dissipation. This compact, thermally capable package supports high-density portable designs where the MIC2292-15YML-TR delivers up to 750 mA switch current reliably.
MIC2292-15YML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-VFDFN Exposed Pad, 8-MLF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 2.5V
- Voltage - Supply (Max):
- 10V
- Voltage - Output:
- -
- Current - Output / Channel:
- 750mA (Switch)
- Frequency:
- 1.6MHz
- Dimming:
- Analog, PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MLF® (2x2)
MIC2292-15YML-TR FAQ
1.How can I place an order for MIC2292-15YML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2292-15YML-TR 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 MIC2292-15YML-TR reliable?
The price and inventory of MIC2292-15YML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2292-15YML-TR is usually 5 days.
3.What payment methods are accepted for MIC2292-15YML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2292-15YML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2292-15YML-TR?
MIC2292-15YML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2292-15YML-TR 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 MIC2292-15YML-TR?
For technical support, including MIC2292-15YML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2292-15YML-TR requirements.
6.How does Aetrix verify that MIC2292-15YML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2292-15YML-TR 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 MIC2292-15YML-TR meets industry standards.
7.What is the process for return or replacement of MIC2292-15YML-TR?
All MIC2292-15YML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2292-15YML-TR, 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 MIC2292-15YML-TR part is unused and in its original packaging.
Return procedure for MIC2292-15YML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC2292-15YML-TR Tags
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