ST LM334DT

电流源±3%

Overview

The LM334DT is a 3-terminal adjustable Current Source characterized by an operating current range of 10000: 1 an excellent current regulation wide dynamic voltage range of 1 to 10V. The current is determined by an external resistor without requiring other external components. Reverse voltage of up to 20V will only draw a current of several microamperes. This enables the circuit to operate as a rectifier and as a source of current in AC applications. For the LM334, the voltage on the control pin is 64mV at +25°C and is directly proportional to the absolute temperature (°K). The simplest external resistor connection generates a current with approximately 0.33%/°C temperature dependence. Zero drift can be obtained by adding an additional resistor and a diode to the external circuit.

Features

Tape & Reel (TR) Package
Tape & Reel (TR) package
LM334 family
The maximal supply voltage of 40V
1 output

Surface Mount Mounting Type

Applications

There are a lot of STMicroelectronics
LM334DT Current Regulation/Managements applications.

• Power management
• Programmable current source
• Automotive current measurement
• Industrial applications current measurement
• Battery management
• Over current monitor
• Over-current measurement
• Current sensing
• Motor controls
• Transmission controls