深圳市锐视安科技有限公司

LM334Z

LM134/LM234/LM334

3-Terminal Adjustable Current Sources

General Description

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

The LM134 is guaranteed 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-46 hermetic, TO-92 and SO-8 plastic packages.

LM334Z产品图片：

LM334Z参数：

型号：LM334Z

品牌：TI/NS

封装规格：TO-92

种类：电流调节器

存储温度：-55-100°

存储环境：常温

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