AS1110-BQFT vs LM3431QMHX/NOPB
| Part Number |
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| Category | PMIC - LED Drivers | PMIC - LED Drivers |
| Manufacturer | ams | Texas Instruments |
| Description | IC LED DRIVER LINEAR 100MA 28QFN | IC LED DRIVER CTRLR DIM 28HTSSOP |
| Package | Tube | Tape & Reel (TR) |
| Series | - | Automotive, AEC-Q100 |
| Type | Linear | DC DC Controller |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 28-WFQFN Exposed Pad | 28-PowerTSSOP (0.173\", 4.40mm Width) |
| Supplier Device Package | 28-QFN (5x5) | 28-HTSSOP |
| Topology | Shift Register | Step-Up (Boost) |
| Applications | Signage | Backlight |
| Number of Outputs | 16 | 3 |
| Voltage - Output | 15V | - |
| Frequency | 50MHz | 1MHz |
| Current - Output / Channel | 100mA | - |
| Internal Switch(s) | Yes | No |
| Dimming | - | Analog, PWM |
| Voltage - Supply (Max) | 5.5V | 36V |
| Voltage - Supply (Min) | 3V | 4.5V |
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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. Do all LED lights need a driver?
Not all LED lights require independent drivers. Some small or integrated LED lamps may already have built-in driver circuits. However, for most high-power LEDs or applications that require specific current control, using a dedicated driver is very necessary.
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4. Does an LED strip require an LED driver?
Yes, LED strips usually require a suitable driver to provide the correct voltage and current. Especially for long strips, because they are often composed of multiple small LEDs in series or parallel.
