SC653ULTRT vs TLC59291RGER
| Part Number |
|
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| Category | PMIC - LED Drivers | PMIC - LED Drivers |
| Manufacturer | Semtech Corporation | Texas Instruments |
| Description | IC LED DRIVER RGLTR 25MA 18MLPQ | IC LED DRIVER 16CH VQFN |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | SemPulse® | - |
| Type | DC DC Regulator | Linear |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 18-UFQFN Exposed Pad | 24-VFQFN Exposed Pad |
| Supplier Device Package | 18-MLPQ-UT (2.3x2.3) | 24-VQFN (4x4) |
| Topology | Switched Capacitor (Charge Pump) | Shift Register |
| Applications | Backlight | - |
| Number of Outputs | 4 | 16 |
| Voltage - Output | 2.5V ~ 5.25V | 10V |
| Frequency | 250kHz | 33MHz |
| Current - Output / Channel | 25mA | 50mA |
| Internal Switch(s) | Yes | Yes |
| Dimming | - | - |
| Voltage - Supply (Max) | 5.5V | 5.5V |
| Voltage - Supply (Min) | 2.9V | 3V |
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1. What is an LED driver for?
The main role of LED drivers is to provide a stable operating current for LEDs. Since LEDs are very sensitive to current, too high a current can cause them to be damaged or their lifespan to be shortened, while too low a current cannot guarantee brightness. Therefore, a suitable driver can ensure that the LED works under safe and efficient conditions.
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2. 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.
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3. 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.
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4. Are there LED drivers with audio output?
Some high-end LED drivers do have the ability to synchronize with audio signals and change the lighting effects to the rhythm of music. This type of driver is usually used in occasions such as entertainment lighting or stage lighting.
