L99LD21Q6
HIGH POWER LED DRIVER FOR AUTOMOManufacturer: STMicroelectronics
Categories: LED Drivers
Quality Control: Learn More
STMicroelectronics L99LD21Q6 is a high-power LED driver IC designed for demanding automotive applications. This component features a dual-output DC-DC regulator with both step-down (Buck) and step-up (Boost) capabilities, enabling flexible power management for LED lighting systems. It supports PWM and SPI dimming for precise control over light intensity. The L99LD21Q6 integrates internal switches and is qualified to AEC-Q100 standards, ensuring reliability in harsh automotive environments. With an output current of up to 1.5A per channel and a wide operating voltage range from 5.5V to 60V, it is suitable for various automotive lighting solutions. The device operates within a junction temperature range of -40°C to 150°C and is supplied in a 40-QFN (6x6) package, surface mountable for efficient board integration. The switching frequency can be adjusted between 100kHz and 450kHz.
Additional Information
Series: -RoHS Status: unknownManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TrayDatasheet:Download Free CAD Model:
Technical Details:
| Packaging | Tray |
| Package / Case | 40-TFQFN Exposed Pad |
| Voltage - Output | 50V |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Frequency | 100kHz ~ 450kHz |
| Type | DC DC Regulator |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Applications | Lighting |
| Current - Output / Channel | 1.5A |
| Internal Switch(s) | Yes |
| Topology | Step-Down (Buck), Step-Up (Boost) |
| Supplier Device Package | 40-QFN (6x6) |
| Dimming | PWM, SPI |
| Voltage - Supply (Min) | 5.5V |
| Voltage - Supply (Max) | 60V |
| Grade | Automotive |
| Qualification | AEC-Q100 |
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