MIC2287-24YML-TR More Semiconductors - ICs by Microchip Technology
White LED Driver w/ 34V OVP
| Status: | Active |
|---|---|
| Series: | MIC2287 |
| RoHS: | Compliant |
The MIC2287 is a 1.2MHz pulse width modulated (PWM), boost-switching regulator that is optimized for constant-current, white LED driver applications. With a maximum output voltage of 34V and a switch current of over 500mA, the MIC2287 easily drives a string of up to eight white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors.
The MIC2287 implements a constant frequency, 1.2MHz PWM control scheme. The high frequency PWM operation saves board space by reducing external component sizes. The added benefit of the constant frequency PWM scheme as opposed to variable frequency topologies is much lower noise and input ripple injected back to the battery source.
To optimize efficiency, the feedback voltage is set to only 95mV. This reduces the power dissipation in the current set resistor and allows the lowest total output voltage, hence minimal current draw from the battery.
The MIC2287 is available with three levels of overvoltage protection, 15V, 24V, and 34V. This allows designers to choose the smallest possible external components with the appropriate voltage ratings for their applications.
The MIC2287 has a junction temperature range of -40°C to +125°C.
Features
| 2.5V to 10V input voltage |
| Output voltage up to 34V |
| Over 500mA switch current |
| 1.2 MHz PWM operation |
| 95mV feedback voltage |
| Output over voltage protection (OVP) |
| Options for 15V, 24V, and 34V OVP |
| <1% line and load regulation |
| <1µA shutdown current |
| Over-temperature protection |
| UVLO |
| Low profile Thin SOT-23-5 package option |
| -40°C to +125°C junction temperature range |
Specifications
| Topology | Boost |
|---|---|
| +Vin min (V) | 2.5 |
| +Vin max (V) | 10 |
| Output Current | 2A BJT |
| Dimming | PWM / Analog |
| Package | TSOT, VDFN |
| Product Type | LED Backlight |
| VOUT | 34 |
| llim Typ (A) | 0.75 |
| llim Max (A) | 0 |
| lq Typ | 2.5mA |
| Vfb (V) | 0.095 |
| Tol Typ % | ±5 |
| Duty Cycle Max | 0.9 |
| Freq (Hz) | 1.2M |
| OVP | Yes |
| VEN (V) | 1.5 |
| EN | Yes |
| Soft Start | Yes |
| UVLO Typ (V) | 2.1 |
| Ceramic Cap | Yes |
| Oja (C/W) | 252, 90 |
| Pins | Packaging | 8 | VDFN |
| Temp Range | -40C to +125C |
| Packing Media | Tape and reel (5000) |
Environmental Information
| JEDEC Indicator | e4 |
|---|---|
| ROHS | Compliant |
| China EFUP | Compliant |
| Device Weight (g) | 0.0109 |
| Shipping Weight (kg) | 0.339227 |
| Lead Count | 8 |
| Package Type | VDFN |
| Package Width or Size | 2x2x0.9mm |
| Soldering Composition | NiPdAu |
Alternative Descriptions
| White LED Driver w/ 24V OVP | Microchip Technology |
| White Led Driver W/ 24V Ovp 8 Vdfn 2X2X0.9Mm T/R Rohs Compliant: Yes |Microchip MIC2287-24YML-TR | Newark Electronics |
| MIC2287 Series Overvoltage Protection PWM White LED Driver - MLF-2 x 2 mm | Future Electronics |
| LED DRVR Boost 1-CH Analog/PWM 24V 2A 8-Pin VDFN T/R | Avnet America |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a MIC2287-24YML-TR?
Additional datasheets, footprints and schematics for MIC2287-24YML-TR are listed on our Part Details page. You can also find images and similar parts to MIC2287-24YML-TR on this page.
What pricing and inventory information can I view?
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What category does MIC2287-24YML-TR fall under?
The MIC2287-24YML-TR is listed under Semiconductors - ICs > More Semiconductors - ICs.
Can I view similar or alternative parts?
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Is the MIC2287-24YML-TR RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for MIC2287-24YML-TR have stock available?
Authorised distributors including Microchip Technology, Newark Electronics, Future Electronics, Avnet America and Avnet Silica have stock available or on a lead time for MIC2287-24YML-TR.
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