MIC2297-38YML-TR More Semiconductors - ICs by Microchip Technology
40V PWM Boost Regulator White LED Driver
| Status: | Active |
|---|---|
| Series: | MIC2297 |
| RoHS: | Compliant |
The MIC2297 is a 600kHz PWM boost-switching regulator that is optimized for driving 6-10 series white LEDs. With its internal 40V switch and a guaranteed switch current of 1.2A, the MIC2297 easily drives a string of 10 white LEDs in series at 20mA, ensuring a high level of brightness and eliminating several ballast resistors.
The MIC2297 implements constant frequency 600kHz PWM control. The high frequency PWM operation saves board space by reducing external component sizes. The added benefit of the constant frequency PWM operation is much lower noise and input ripple injected back to the battery source than with variable frequency topologies.
To optimize efficiency, the feedback voltage is set to 200mV. This reduced voltage reduces the power dissipation in the current set resistor, and allows the lowest total output voltage, hence minimal current draw from the battery.
The MIC2297 is available with output over voltage protection that protects the IC and external components in case of open LED conditions.
The MIC2297 has a junction temperature range of -40°C to +125°C.
Features
| 2.5V to 10V input voltage range |
| Output voltage up to 40V |
| 1.2A switch current |
| 600kHz PWM operation |
| Trimmed 200mV feedback voltage |
| Output over voltage protection (fixed or adjustable) |
| PWM brightness control |
| DAC brightness control |
| <1% line regulation |
| 1µA shutdown current |
| Over temperature protection |
| UVLO |
| -40 °C to +125 °C junction temperature range |
Specifications
| Topology | Boost |
|---|---|
| +Vin min (V) | 2.5 |
| +Vin max (V) | 10 |
| Output Current | 3A BJT |
| Dimming | PWM / Analog |
| Package | VDFN |
| Product Type | LED Backlight |
| VOUT | 40 |
| llim Typ (A) | 1.7 |
| llim Max (A) | 2.5 |
| lq Typ | 4.0mA |
| Vfb (V) | 0.2 |
| Tol Typ % | ±5 |
| Duty Cycle Max | 0.93 |
| Freq (Hz) | 600K |
| OVP | Yes |
| VEN (V) | 1.5 |
| EN | Yes |
| Soft Start | Yes |
| UVLO Typ (V) | 2.1 |
| Ceramic Cap | Yes |
| Oja (C/W) | 65 |
| Pins | Packaging | 10 | 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) | 0.0159 |
| Shipping Weight (kg) | 0.07791 |
| Lead Count | 10 |
| Package Type | VDFN |
| Package Width or Size | 2.5x2.5x0.9mm |
| Soldering Composition | NiPdAu |
Alternative Descriptions
| 1.2Mhz 1.2A Pwm Boost Converter 10 Vdfn 2.5X2.5X0.9Mm T/R Rohs Compliant: Yes |Microchip MIC2297-38YML-TR | Newark Electronics |
| 1.2MHz 1.2A PWM Boost Converter | Microchip Technology |
| LED DRVR Boost 1-CH Analog/PWM 2.5A 10-Pin VDFN T/R | Avnet America |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a MIC2297-38YML-TR?
Additional datasheets, footprints and schematics for MIC2297-38YML-TR are listed on our Part Details page. You can also find images and similar parts to MIC2297-38YML-TR on this page.
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What category does MIC2297-38YML-TR fall under?
The MIC2297-38YML-TR is listed under Semiconductors - ICs > More Semiconductors - ICs.
Can I view similar or alternative parts?
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Is the MIC2297-38YML-TR RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for MIC2297-38YML-TR have stock available?
Authorised distributors including Newark Electronics, Microchip Technology and Avnet America have stock available or on a lead time for MIC2297-38YML-TR.
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