TL4242-Q1 - TL4242-Q1

TL4242-Q1是TI德州仪器公司的一款汽车类LED驱动器产品，TL4242-Q1是TL4242-Q1，本站介绍了TL4242-Q1的封装应用图解、特点和优点、功能等，并给出了与TL4242-Q1相关的TI元器件型号供参考。

TL4242-Q1 - TL4242-Q1 - 汽车类LED驱动器 - LED驱动器 - 德州仪器

产品描述

The TL4242-Q1 is an integrated adjustable constant-current source, driving loads up to 500 mA. One can adjust the output current level through an external resistor. The device design is for supplying high-power LEDs (for example, OSRAM Dragon LA W57B) under the severe conditions of automotive applications, resulting in constant brightness and extended LED lifetime. The device comes in the DRJ (QFN) package. Protection circuits prevent damage to the device in case of overload, short-circuit, reverse polarity, and overheat. The device provides the connected LEDs protection against reverse polarity as well as excess voltages up to 45V.

The integrated PWM input of the TL4242-Q1 permits LED brightness regulation by pulse-width modulation (PWM). The high-input impedance of the PWM input allows operating the LED driver as a protected high-side switch.

产品特性

Qualified for Automotive Applications
AEC-Q100 Test Guidance With the Following Results:
- Device Temperature Grade 2: –40°C to 105°C Ambient Operating Temperature Range for QFN package
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range for SFM package
- Device HBM ESD Classification Level H1C
- Device CDM ESD Classification Level C3B
Adjustable Constant Current upto500mA(±5%)
Wide Input-Voltage Range up to 42V
Low Dropout Voltage
Open-Load Detection
Overtemperature Protection
Short-Circuit Proof
Reverse-Polarity Proof
APPLICATIONS
- Automotive LED Lighting Applications Including:
  - Rear Light
  - Daytime Running Light
  - Fog Light
  - Position Light
  - Interior Light
  - Stop or Tail Light

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