- 制造厂商:TI
- 产品类别:电源管理
- 技术类目:LED 驱动器 - 汽车 LED 驱动器
- 功能描述:汽车类可调节 LED 驱动器
- 点击这里打开及下载TL4242-Q1的技术文档资料
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The TL4242-Q1 device 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 (WSON) and KTT (TO-263) 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 45 V.
The integrated PWM input of the TL4242-Q1 device 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.
- 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 WSON package
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range for TO-263 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
- Number of channels (#)
- 1
- Topology
- Current Source
- Rating
- Automotive
- Operating temperature range (C)
- -40 to 105, -40 to 125
- Vin (Min) (V)
- 4.5
- Vin (Max) (V)
- 42
- Vout (Min) (V)
- 0
- Vout (Max) (V)
- 40
- Iout (Max) (A)
- 0.5
- Iq (Typ) (mA)
- 12
- Features
- LED Open Detection, Thermal Shutdown
TL4242-Q1的完整型号有:TL4242QKTTRQ1、TL4242TDRJRQ1,以下是这些产品的关键参数及官网采购报价:
TL4242QKTTRQ1,工作温度:-40 to 125,封装:DDPAK/TO-263 (KTT)-7,包装数量MPQ:500个,MSL 等级/回流焊峰值温度:Level-3-245C-168 HR,引脚镀层/焊球材料:SN,TI官网TL4242QKTTRQ1的批量USD价格:1.319(1000+)
TL4242TDRJRQ1,工作温度:-40 to 105,封装:SON (DRJ)-8,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:NIPDAU,TI官网TL4242TDRJRQ1的批量USD价格:.381(1000+)
TL4242-Q1 TINA-TI Spice Model
PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。借助?PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。
在?PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
PMP20305 — 11W 汽车 LED 照明驱动器参考设计
PMP20305 是采用 LM5022-Q1 升压控制器 IC 和两种恒流方法驱动 4 个 LED 灯串的 LED 驱动器电路参考设计。其中两个 LED 灯串利用 TL431 电压基准作为驱动器来充当恒定电流源,而另外两个灯串使用 TL4242 线性 LED 驱动器 IC,该驱动器 IC 还具有 PWM 控制的亮度调节方案。该电路的输入电压范围为 6V 至 16V(峰值为 24V)。LM5022-Q1 升压转换器的输出设置为 26.9Vout,能够向负载提供总共 0.4A 的电流。