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LM134的基本参数
  • 制造厂商:TI
  • 产品类别:电源管理
  • 技术类目:电压基准 - 电流基准
  • 功能描述:3 端子可调节电流源
  • 点击这里打开及下载LM134的技术文档资料
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LM134的产品详情:

The LM134/LM234/LM334 are 3-terminal adjustable current sources featuring 10,000:1 range in operating current, excellent current regulation and a wide dynamic voltage range of 1V to 40V. Current is established with one external resistor and no other parts are required. Initial current accuracy is ±3%. The LM134/LM234/LM334 are true floating current sources with no separate power supply connections. In addition, reverse applied voltages of up to 20V will draw only a few dozen microamperes of current, allowing the devices to act as both a rectifier and current source in AC applications.

The sense voltage used to establish operating current in the LM134 is 64mV at 25°C and is directly proportional to absolute temperature (°K). The simplest one external resistor connection, then, generates a current with ≈+0.33%/°C temperature dependence. Zero drift operation can be obtained by adding one extra resistor and a diode.

Applications for the current sources include bias networks, surge protection, low power reference, ramp generation, LED driver, and temperature sensing. The LM234-3 and LM234-6 are specified as true temperature sensors with ensured initial accuracy of ±3°C and ±6°C, respectively. These devices are ideal in remote sense applications because series resistance in long wire runs does not affect accuracy. In addition, only 2 wires are required.

The LM134 is specified over a temperature range of −55°C to +125°C, the LM234 from −25°C to +100°C and the LM334 from 0°C to +70°C. These devices are available in TO hermetic, TO-92 and SOIC-8 plastic packages.

LM134的优势和特性:
  • Operates From 1V to 40V
  • 0.02%/V Current Regulation
  • Programmable From 1μA to 10mA
  • True 2-Terminal Operation
  • Available as Fully Specified Temperature Sensor
  • ±3% Initial Accuracy

All trademarks are the property of their respective owners.

LM134的参数(英文):
  • Iout/Iz (Max) (mA)
  • 0.01
  • Vin (Min) (V)
  • 0.8
  • Vin (Max) (V)
  • 40
  • Initial accuracy (Max) (%)
  • 3
LM134具体的完整产品型号参数及价格(美元):

LM134的完整型号有:LM134 MDC、LM134H、LM134H/NOPB,以下是这些产品的关键参数及官网采购报价:

LM134 MDC,工作温度:-40 to 85,封装: (Y)-0,包装数量MPQ:400个,MSL 等级/回流焊峰值温度:Level-1-NA-UNLIM,引脚镀层/焊球材料:Call TI,TI官网LM134 MDC的批量USD价格:3.964(1000+)

LM134H,工作温度:-55 to 125,封装:TO (NDV)-3,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Call TI,引脚镀层/焊球材料:Call TI,TI官网LM134H的批量USD价格:13.091(1000+)

LM134H/NOPB,工作温度:-55 to 125,封装:TO (NDV)-3,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-NA-UNLIM,引脚镀层/焊球材料:Call TI,TI官网LM134H/NOPB的批量USD价格:11.166(1000+)

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LM134的评估套件:

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