LM3431AMHX/NOPB vs LV5232VH-TLM-H
| Part Number |
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| Category | PMIC - LED Drivers | PMIC - LED Drivers |
| Manufacturer | National Semiconductor | ON Semiconductor |
| Description | LM3431 3-CHANNEL CONSTANT CURREN | IC LED DRIVER LIN 100MA 28HSOP |
| Package | Bulk | Tube |
| Series | - | - |
| Type | DC DC Controller | Linear |
| Operating Temperature | -40°C ~ 125°C (TJ) | -25°C ~ 75°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 28-PowerTSSOP (0.173\", 4.40mm Width) | 28-LSOP (0.220\", 5.60mm Width) + 2 Heat Tabs |
| Supplier Device Package | 28-HTSSOP | 28-HSOP |
| Topology | Step-Up (Boost) | Shift Register |
| Applications | Backlight | - |
| Number of Outputs | 3 | 16 |
| Voltage - Output | - | 42V |
| Frequency | 1MHz | - |
| Current - Output / Channel | - | 100mA |
| Internal Switch(s) | No | Yes |
| Dimming | Analog, PWM | - |
| Voltage - Supply (Max) | 36V | 5.5V |
| Voltage - Supply (Min) | 4.5V | 3V |
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1. What is the difference between an LED driver and a ballast?
LED drivers: Designed specifically for LEDs, they are usually used to adjust the output current to meet the requirements of LEDs.
Ballasts: Traditionally used for fluorescent lamps or other gas discharge lamps, they control the high voltage at startup and limit the operating current. Although some modern electronic ballasts can also provide constant current, their original design and application areas are different from LED drivers. -
2. How can I tell if an LED driver is broken?
If the LED does not light up or the brightness drops significantly.
The driver is heating abnormally.
There is a distinct burnt smell.
Measure the input and output voltage/current and it does not meet the specification.
Test the status of its internal components through professional equipment. -
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.
