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Microchip Technology MIC2287C-15YML-TR
- Part No.:
- MIC2287C-15YML-TR
- Manufacturer:
- Microchip Technology
- Category:
- LED Drivers
- Package:
- 8-VFDFN Exposed Pad, 8-MLF®
- Datasheet:
-
MIC2287C-15YML-TR.pdf
- Description:
- IC LED DRVR RGLTR PWM 750MA 8MLF
- Quantity:
- Payment:
- Shipping:
Inventory:4,615
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Product details
Overview
MIC2287C-15YML-TR from Micrel is a 1.2MHz PWM white LED driver IC optimized for constant-current backlighting applications, featuring 2.5V–10V input range, 95mV feedback voltage, 15V overvoltage protection (OVP), and ability to drive up to 6-series white LEDs from a single Li-ion cell in portable devices like smartphones and digital cameras.
For engineers reviewing the MIC2287C-15YML-TR datasheet, MIC2287C-15YML-TR pinout, MIC2287C-15YML-TR application, or MIC2287C-15YML-TR equivalent, this page delivers verified package mapping (8-pin 2mm × 2mm MLF™), confirmed OVP threshold (15V ±1.5V), thermal shutdown behavior (150°C), quiescent current (2.5–5mA), and functional pin roles - all extracted from Micrel's official M0510-020906 datasheet.
Technical Context
The MIC2287C-15YML-TR implements constant-frequency current-mode PWM control with a 1.2MHz oscillator, slope compensation ramp generator, and integrated 500mA bipolar switch. Its gm error amplifier compares FB voltage against a precise 95mV reference to regulate LED current via external sense resistor.
OVP functionality is implemented via dedicated OVP pin connected to output, triggering shutdown when voltage exceeds 15V (typical 14V, max 16.5V). The device supports both PWM dimming (via EN pin) and continuous dimming (via DC bias on FB), with thermal shutdown at 150°C and 10°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 1.2 MHz (enables compact 10 µH inductors and 0.22 µF output capacitors) |
| Feedback Voltage | 95 mV ±10% (minimizes power loss in current-sense resistor; sets ILED = 95mV/RFB) |
| OVP Threshold | 15 V (typical 14 V, max 16.5 V; protects against open-circuit LED failure) |
| Input Voltage Range | 2.5 V to 10 V (supports 1-cell Li-ion battery operation down to 2.5 V) |
| Switch Current Limit | 750 mA (ensures reliable drive for 6-series white LEDs at ~20 mA each) |
| Junction Temp Range | –40°C to +105°C (validated for handheld consumer electronics ambient conditions) |
| Quiescent Current | 2.5–5 mA (low standby draw during active regulation) |
Pinout & Package
Package: 8-pin 2mm × 2mm MLF™ (exposed pad GND), lead-free (YML suffix), RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OVP | Overvoltage protection monitor input | Connected directly to output node; triggers shutdown if voltage exceeds 15V threshold |
| VIN | Power supply input | Supplies internal circuitry (2.5–10 V); powers oscillator, error amp, and gate drive |
| EN | Enable logic input | High (>1.5 V) enables switching; low (<0.4 V) disables regulator and reduces IQ to 0.1–1 µA |
| GND | Analog ground reference | Reference for FB and OVP comparators; separate from PGND in layout-sensitive designs |
| SW | Switch node output | Collector of internal bipolar transistor; connects to inductor and output diode anode |
| FB | Current-sense feedback input | Monitors voltage across external RFB; regulates LED current to 95mV/RFB |
| NC | No-connect terminal | Not internally bonded; must be left floating or tied to GND per layout best practice |
| PGND | Power ground return | Low-impedance return path for switch current; tied to exposed pad for thermal performance |
Key Features
| Feature | Design Value |
|---|---|
| 15V OVP with dedicated pin | Prevents destructive overvoltage during LED open-circuit failure without external zener components |
| 95mV precision feedback reference | Reduces sense-resistor power dissipation by >50% vs. conventional 1.25V references |
| 1.2MHz fixed-frequency PWM | Enables use of small 10 µH inductors and 0.22 µF ceramic output capacitors, saving PCB area |
| Integrated 500mA bipolar switch | Eliminates need for external high-voltage switch; supports up to 6-series white LEDs (≈36V total) |
| –40°C to +105°C operation | Validated for full performance across industrial-grade temperature range in portable enclosures |
Applications
| Smartphone Backlighting | Digital Camera LCD Backlight |
|---|---|
|
Use Scenario: Driving 3–6 white LEDs in series for main display backlight in battery-powered smartphones. IC Role / Device Role / Timing Role: Constant-current boost controller regulating LED string current via FB pin; OVP pin monitors output to prevent damage during LED open-circuit events. Use Value: Enables uniform brightness with minimal board space (10 µH inductor, 0.22 µF capacitor) and extends battery life via 95mV feedback efficiency. |
Use Scenario: Powering high-brightness LCD backlight in compact digital cameras with variable ambient light conditions. IC Role / Device Role / Timing Role: PWM dimming controller using EN pin for flicker-free brightness control; supports both PWM and analog dimming modes. Use Value: Delivers stable 20mA LED current across 2.5–4.2V Li-ion battery discharge curve while maintaining >80% efficiency at full load. |
| GPS Navigation Device Display | MP3 Player OLED Backlight |
|
Use Scenario: Illuminating transflective LCD in automotive GPS units requiring wide temperature operation and ESD robustness. IC Role / Device Role / Timing Role: High-efficiency boost converter with thermal shutdown (150°C) and UVLO (2.1V typical) for reliable cold-start and hot-environment operation. Use Value: Maintains consistent luminance from –40°C to +85°C ambient without derating; 2kV HBM ESD rating protects against handling damage. |
Use Scenario: Driving low-current OLED subpixel arrays in portable audio players where low noise and compact size are critical. IC Role / Device Role / Timing Role: Low-noise constant-frequency PWM source minimizing conducted EMI into sensitive audio circuits; 1.2MHz operation avoids audible band. Use Value: Reduces input ripple injection into shared battery rail compared to variable-frequency topologies, preserving audio signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar white LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16832ATA+T | Higher 2MHz switching frequency; 36V OVP only; requires external MOSFET | Targets higher-power LED strings (>500mA); less suitable for ultra-compact 2mm × 2mm layouts | Select when needing >750mA switch current or tighter OVP tolerance (±1.2% vs. ±10% on MIC2287C-15YML-TR) |
| TPS61165DRVR | Integrated 40V MOSFET; 1.2MHz; no dedicated OVP pin - uses FB-based clamping | Lacks hardware OVP pin; relies on FB monitoring which delays response vs. MIC2287C-15YML-TR's direct OVP sensing | Choose when footprint compatibility with TI's 2mm × 2mm SON-8 is required and OVP timing margin is acceptable |
Compared with MAX16832ATA+T and TPS61165DRVR, the MIC2287C-15YML-TR provides faster OVP response via dedicated pin, lower quiescent current (2.5mA vs. 3.5mA), and guaranteed 15V OVP threshold - making it optimal for cost-sensitive, space-constrained 1–2W LED backlighting where open-circuit protection timing is critical.
Availability
MIC2287C-15YML-TR is available at Aetrix Electronics and suitable for smartphone backlighting, digital camera LCD illumination, and GPS navigation display applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC2287C-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
Micrel, Inc. was a U.S.-based semiconductor company specializing in analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015. It emphasized high-performance, small-footprint ICs for portable electronics.
The MIC2287C family was designed specifically for space-constrained white LED backlighting in battery-powered consumer devices, prioritizing efficiency at low input voltages, fast OVP response, and minimal external component count.
FAQ
What is the exact OVP threshold voltage for MIC2287C-15YML-TR?
The MIC2287C-15YML-TR has a specified OVP threshold of 15V, with a typical value of 14V and maximum of 16.5V under standard test conditions (TA = 25°C). This threshold is factory-trimmed and applies only to the MLF™ package variants - the Thin SOT-23 version lacks the OVP pin entirely. The OVP function activates when the voltage at the OVP pin exceeds this threshold, forcing immediate shutdown of the internal switch.
Does MIC2287C-15YML-TR support PWM dimming, and how is it implemented?
Yes, MIC2287C-15YML-TR supports PWM dimming via its EN pin: applying a logic-high signal (≥1.5V) enables the regulator, while logic-low (≤0.4V) shuts it down completely. This method achieves flicker-free dimming at frequencies between 100Hz and 10kHz, with LED current either at full regulated value or zero - delivering high efficiency since no current flows during off cycles. The MIC2287C-15YML-TR datasheet confirms EN pin bias current remains below 40µA across temperature.
What is the recommended inductor value for driving 4-series white LEDs with MIC2287C-15YML-TR?
For driving 4-series white LEDs (≈12–16V total forward voltage) with MIC2287C-15YML-TR, Micrel recommends a 10µH inductor - such as the Murata LQH43MN100K21 - paired with a 0.27µF output capacitor (e.g., AVX 0805YD274MAT). This combination ensures stable operation at 1.2MHz, maintains >82% efficiency at 20mA output, and fits within tight portable form factors. Inductor saturation current must exceed 750mA to accommodate peak switch current.
How does the 95mV feedback voltage in MIC2287C-15YML-TR improve system efficiency?
The 95mV feedback voltage in MIC2287C-15YML-TR reduces power dissipation in the external current-sense resistor by over 90% compared to conventional 1.25V references. For a 20mA LED current, RFB = 4.75Ω dissipates only 38µW versus 25mW with a 1.25V reference - significantly lowering thermal load and enabling smaller, cheaper resistors. This also minimizes total output voltage overhead, reducing battery current draw and extending runtime in Li-ion-powered devices.
Is MIC2287C-15YML-TR pin-compatible with other variants in the MIC2287C family?
Yes, MIC2287C-15YML-TR shares identical 8-pin 2mm × 2mm MLF™ pinout and footprint with MIC2287C-24YML and MIC2287C-34YML - differing only in factory-trimmed OVP threshold (15V, 24V, or 34V). All share identical VIN, EN, SW, FB, GND, PGND, NC, and OVP pin assignments and electrical behavior outside OVP activation. This allows design reuse across multiple output voltage requirements without PCB revision.
MIC2287C-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:
- 1.2MHz
- Dimming:
- Analog, PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 105°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MLF® (2x2)
MIC2287C-15YML-TR FAQ
1.How can I place an order for MIC2287C-15YML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2287C-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 MIC2287C-15YML-TR reliable?
The price and inventory of MIC2287C-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 MIC2287C-15YML-TR is usually 5 days.
3.What payment methods are accepted for MIC2287C-15YML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2287C-15YML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2287C-15YML-TR?
MIC2287C-15YML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2287C-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 MIC2287C-15YML-TR?
For technical support, including MIC2287C-15YML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2287C-15YML-TR requirements.
6.How does Aetrix verify that MIC2287C-15YML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2287C-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 MIC2287C-15YML-TR meets industry standards.
7.What is the process for return or replacement of MIC2287C-15YML-TR?
All MIC2287C-15YML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2287C-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 MIC2287C-15YML-TR part is unused and in its original packaging.
Return procedure for MIC2287C-15YML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC2287C-15YML-TR Tags
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BCR402RE6327HTSA1
Infineon Technologies
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BCR430UXTSA2
Infineon Technologies
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BCR420UE6433HTMA1
Infineon Technologies
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BCR420UE6327HTSA1
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BCR421UE6327HTSA1
Infineon Technologies
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LYT1604D-TL
Power Integrations
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HV9910CLG-G
Microchip Technology
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CL2N8-G
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BCR420UW6-7
Diodes Incorporated
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BCR421UW6-7
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BCR420UFD-7
Diodes Incorporated
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BCR421UFD-7
Diodes Incorporated
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