Allicdata Part #: | 296-27713-2-ND |
Manufacturer Part#: |
TL4242TDRJRQ1 |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC LED DRIVER LINEAR 500MA 8SON |
More Detail: | LED Driver IC 1 Output Linear 500mA 8-SON (4x4) |
DataSheet: | TL4242TDRJRQ1 Datasheet/PDF |
Quantity: | 9000 |
Moisture Sensitivity Level (MSL): | 3 (168 Hours) |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Voltage - Supply (Max): | 42V |
Base Part Number: | TL4242 |
Supplier Device Package: | 8-SON (4x4) |
Package / Case: | 8-WDFN Exposed Pad |
Mounting Type: | Surface Mount |
Operating Temperature: | -40°C ~ 105°C (TA) |
Applications: | -- |
Dimming: | -- |
Frequency: | -- |
Current - Output / Channel: | 500mA |
Voltage - Output: | 16V |
Series: | -- |
Voltage - Supply (Min): | 4.5V |
Number of Outputs: | 1 |
Internal Switch(s): | Yes |
Topology: | -- |
Type: | Linear |
Moisture Sensitivity Level (MSL): | -- |
Part Status: | Active |
Lead Free Status / RoHS Status: | -- |
Packaging: | Tape & Reel (TR) |
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TL4242TDRJRQ1 Application Field and Working Principle
The TL4242TDRJRQ1 is a low-side PWM (pulse-width modulation) controlling LED driver IC (integrated circuit). It\'s designed for automotive applications such as day-time running lights (DRL), automotive lighting, and other external LED applications. It is developed by Texas Instruments (TI). It offers excellent protection against instant current ramps, excessive temperature, and other automotive design challenges.
Applications of TL4242TDRJRQ1
TL4242TDRJRQ1 is designed for automotive LED lighting systems. It is used in day-time running lights (DRL), automotive lighting, and other external LED applications. With its low side current sensing, fast switching frequency, and the ability to set the output current, it can provide a wide range of lighting effects.
Features of TL4242TDRJRQ1
The TL4242TDRJRQ1 has the following features:
- Low-side current sensing
- Accurate output current setting
- Temperature and short circuit protection
- Programmable PWM frequency
- Under-Voltage Lockout (UVLO) protection
- Thermal shutdown
- Reliable operation under load transients or load short circuits
Working Principle of TL4242TDRJRQ1
The basic working principle of the TL4242TDRJRQ1 is that a PWM signal is applied to the input of the IC and then through the low-side ladder current sensing, the output current of the IC is determined. The PWM signal is used to drive an external MOSFET which in turn is used to control the on-time of the LED. When the MOSFET is on, the LED will be on and when the MOSFET is off, the LED will be off. The IC then creates a current limiting loop by measuring the current flowing through the LED and adjusting the LED current so that it remains constant even when the LED load changes.
Conclusion
In conclusion, the TL4242TDRJRQ1 is a low-side PWM controlling LED driver IC designed for automotive applications such as day-time running lights, automotive lighting, and other external LED applications. Its low-side current sensing, fast switching frequency, and current setting allow for a wide range of lighting effects. Its built-in protections against current ramps, temperature, and short circuits make it reliable and safe in automotive designs.
The specific data is subject to PDF, and the above content is for reference
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