LM3431QMHX/NOPB vs TPS60250RTET
| Part Number |
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| Category | PMIC - LED Drivers | PMIC - LED Drivers |
| Manufacturer | Texas Instruments | Texas Instruments |
| Description | IC LED DRIVER CTRLR DIM 28HTSSOP | IC LED DRIVER RGLTR DIM 16WQFN |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | Automotive, AEC-Q100 | - |
| Type | DC DC Controller | DC DC Regulator |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 28-PowerTSSOP (0.173\", 4.40mm Width) | 16-WFQFN Exposed Pad |
| Supplier Device Package | 28-HTSSOP | 16-WQFN (3x3) |
| Topology | Step-Up (Boost) | Switched Capacitor (Charge Pump) |
| Applications | Backlight | Backlight |
| Number of Outputs | 3 | 7 |
| Voltage - Output | - | 6.5V |
| Frequency | 1MHz | 750kHz |
| Current - Output / Channel | - | 230mA |
| Internal Switch(s) | No | Yes |
| Dimming | Analog, PWM | I²C |
| Voltage - Supply (Max) | 36V | 6V |
| Voltage - Supply (Min) | 4.5V | 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. 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.
