ISL97687IBZ-T vs MAX20078ATE+T
| Part Number |
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| Category | PMIC - LED Drivers | PMIC - LED Drivers |
| Manufacturer | Renesas Electronics America Inc | Maxim Integrated |
| Description | IC LED DRIVER CTRLR DIM 28SOIC | SYNCHRONOUS BUCK CONTROLLER FOR |
| Package | Cut Tape (CT) | Tape & Reel (TR) |
| Series | - | Automotive, AEC-Q100 |
| Type | DC DC Controller | DC DC Controller |
| Operating Temperature | -40°C ~ 105°C (TA) | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 28-SOIC (0.295\", 7.50mm Width) | 16-WFQFN Exposed Pad |
| Supplier Device Package | 28-SOIC | 16-TQFN (3x3) |
| Topology | Step-Up (Boost) | Step-Down (Buck) |
| Applications | Backlight | Automotive, Lighting |
| Number of Outputs | 4 | 1 |
| Voltage - Output | - | - |
| Frequency | 200kHz ~ 1.2MHz | 1MHz |
| Current - Output / Channel | 160mA | 10mA |
| Internal Switch(s) | No | No |
| Dimming | Analog, PWM | Analog, PWM |
| Voltage - Supply (Max) | 32V | 65V |
| Voltage - Supply (Min) | 9V | 4.5V |
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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 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. 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.
