AS1110-BQFT vs AS1112B-BQFT
| Part Number |
|
|
| Category | PMIC - LED Drivers | PMIC - LED Drivers |
| Manufacturer | ams | ams |
| Description | IC LED DRIVER LINEAR 100MA 28QFN | IC LED DRIVER LIN 100MA 32TQFN |
| Package | Tube | -Reel® |
| Series | - | - |
| Type | Linear | Linear |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 28-WFQFN Exposed Pad | 32-VFQFN Exposed Pad |
| Supplier Device Package | 28-QFN (5x5) | 32-TQFN (5x5) |
| Topology | Shift Register | Shift Register |
| Applications | Signage | Backlight, Signage |
| Number of Outputs | 16 | 16 |
| Voltage - Output | 15V | 15V |
| Frequency | 50MHz | 30MHz |
| Current - Output / Channel | 100mA | 100mA |
| Internal Switch(s) | Yes | Yes |
| Dimming | - | - |
| Voltage - Supply (Max) | 5.5V | 5.5V |
| Voltage - Supply (Min) | 3V | 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 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.
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4. 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.
