SC653ULTRT vs MIC3205YML-TR
| Part Number |
|
|
| Category | PMIC - LED Drivers | PMIC - LED Drivers |
| Manufacturer | Semtech Corporation | Microchip Technology |
| Description | IC LED DRIVER RGLTR 25MA 18MLPQ | IC LED DRIVER CTRLR DIM 10MLF |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | SemPulse® | - |
| Type | DC DC Regulator | DC DC Controller |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 18-UFQFN Exposed Pad | 10-VFDFN Exposed Pad, 10-MLF® |
| Supplier Device Package | 18-MLPQ-UT (2.3x2.3) | 10-MLF® (3x3) |
| Topology | Switched Capacitor (Charge Pump) | Step-Down (Buck) |
| Applications | Backlight | Lighting |
| Number of Outputs | 4 | 1 |
| Voltage - Output | 2.5V ~ 5.25V | - |
| Frequency | 250kHz | 1.5MHz |
| Current - Output / Channel | 25mA | - |
| Internal Switch(s) | Yes | No |
| Dimming | - | PWM |
| Voltage - Supply (Max) | 5.5V | 40V |
| Voltage - Supply (Min) | 2.9V | 4.5V |
-
1. Is an LED driver just a power supply?
Not exactly. Although the LED driver does provide power, it is more than just a simple power converter. It also contains complex circuits to accurately control the output voltage and current, and sometimes includes dimming, temperature protection and other functions.
-
2. Can I run an LED without a driver?
Yes, but additional circuits (such as resistors) are required to limit the current. However, this method is less efficient and difficult to maintain a stable current, which may lead to poor LED performance or shortened life.
-
3. Why do I need to program an LED driver?
Programming is usually for advanced drivers with programmable functions, such as achieving finer dimming control, color adjustment or other intelligent functions. This allows users to customize the behavior of the driver according to specific needs.
-
4. Can I use an LED light without a driver?
As mentioned before, in theory yes, but in practice it is strongly recommended to use a proper driver to ensure optimal performance and extend life.
