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TL4242DRJR
+Lista de MateriaisIC LED DRIVER LINEAR 500MA 8SON
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FabricanteTexas Instruments
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Peça do Fabricante #TL4242DRJR
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Pacote WSON-8
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Especificações
| Atributo | Valor |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| Type | Linear |
| InternalSwitch(s) | Yes |
| NumberofOutputs | 1 |
| Voltage-Supply(Min) | 4.5V |
| Voltage-Supply(Max) | 42V |
| Voltage-Output | 16V |
| Current-Output/Channel | 500mA |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-WDFN Exposed Pad |
Visão Geral
Description
Key features include an adjustable output current capability of up to 500 mA, providing flexibility for various LED configurations. The TL4242DRJR also offers thermal shutdown protection, ensuring device safety and longevity by preventing overheating. Additionally, its PWM (Pulse Width Modulation) dimming functionality allows for precise control of LED brightness.
The package design of the TL4242DRJR contributes to its compact size, suitable for space-constrained applications. With its robust feature set, the TL4242DRJR is ideal for automotive applications such as interior lighting, navigation systems, and any setting requiring reliable and efficient LED operation.
Equivalent
1. MAX16823 from Maxim Integrated: A high-voltage linear LED driver.
2. LT3517 from Analog Devices: A boost converter with internal PWM dimming for LED applications.
3. NSI45020 from ON Semiconductor: A linear constant current regulator for LED lighting.
Ensure compatibility in terms of electrical specifications and pin configuration when considering alternatives.
Features
1. Current Regulation: Provides a stable output current, which can be adjusted via an external resistor, ensuring consistent LED brightness.
2. Wide Input Voltage Range: Operates from 4.5 V to 42 V, making it suitable for a variety of applications, including automotive and industrial environments.
3. High-Temperature Operation: Can function in ambient temperatures ranging from -40°C to 150°C, enhancing reliability in harsh conditions.
4. Protection Features: Includes over-temperature protection and short-circuit protection to prevent damage to the IC and connected LEDs.
5. PWM Dimming: Supports pulse-width modulation (PWM) for LED brightness control, allowing for efficient dimming functionality.
6. Low Dropout Voltage: Ensures efficient operation even when the supply voltage is close to the forward voltage of the LED.
Overall, the TL4242DRJR is ideal for applications requiring efficient, reliable control of LED lighting systems.
Pinout
In terms of pin count and functions, the TL4242 typically comes in an 8-pin package. Here are the pin functions:
1. IN: Input voltage supply pin, where the power supply is connected.
2. GND: Ground pin.
3. Q: Output pin for connecting the LED load.
4. FB: Feedback input pin used to set the LED current.
5. ADJ: Adjustment pin for setting the output current.
6. ST: Status pin for fault indication.
7. D: Diagnostic pin, used for connecting a microcontroller for diagnostics.
8. EN: Enable pin to turn the device on or off.
These pin functions help the TL4242DRJR regulate the current through LEDs, providing reliable performance for applications like automotive and general lighting. Always refer to the official datasheet for detailed information and specific configurations.