Datasheet > CUR3105

CUR3105

更新时间： 2024-09-27 06:51:11

品牌	Logo	应用领域
MICRONAS		传感器
页数	文件大小	规格书
2页	252K
描述
Hall-Effect Current Transducer

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PRODUCT INFORMATION

May/2010

CUR 3105

Hall-Effect Current Transducer

The CUR 3105 is a current transducer

input signal (current). Individual adjustment

of each transducer during the customer’s

manufacturing process is possible. With this

calibration procedure, the tolerances of the

IC and the mechanical positioning can be

compensated in the final assembly.

Open-circuit (ground and supply line

based on the Hall effect. The IC can be

used for very precise current measure-

ments. The output voltage is proportional to

the measured current and the supply volt-

age (ratiometric analog output). Major char-

acteristics, such as magnetic field range,

sensitivity, output quiescent voltage (output

voltage at B=0 mT), and output voltage

range are programmable and are stored in

the internal EEPROM. It is possible to pro-

gram different transducers which are in par-

allel to the same supply voltage individually.

break detection) with 5 kΩ pull-up and

pull-down resistor, overvoltage and

undervoltage detection

For programming an individual trans-

ducer within several ICs in parallel to the

same supply voltage, a selection can be

done via the output pin

The calculation of the individual IC charac-

teristics and the programming of the

EEPROM memory can easily be done with

a PC and the application kit from Micronas.

Programmable clamping function

Programming through modulation of the

supply voltage

The transducer is designed for industrial,

white goods and automotive applications

and operates with typically 5 V supply volt-

age in the wide junction temperature range

from −40 °C up to 170 °C. The CUR 3105 is

available in the very small leaded package

TO92UT and the SMD package SOIC8.

Operates from −40 °C up to 170 °C

junction temperature

The CUR 3105 features a temperature-

compensated Hall plate with choppered off-

set compensation, an A/D converter, digital

signal processing, a D/A converter with out-

put driver, an EEPROM memory with redun-

dancy and lock function for the calibration

data, an EEPROM for customer serial num-

ber, a serial programming interface, and

protection devices at all pins. The internal

digital signal processing is of great benefit

because analog offsets, temperature shifts,

and mechanical stress do not degrade the

transducers accuracy.

Operates from 4.5 V up to 5.5 V supply

voltage in specification and functions up

to 8.5 V

Operates with static magnetic fields and

dynamic magnetic fields up to 1 kHz

Features

Overvoltage and reverse-voltage protec-

tion at all pins

High-precision current transducer with

ratiometric output and digital signal pro-

cessing

Magnetic characteristics extremely

robust against mechanical stress

Low output voltage drifts over temperature

12-bit analog output

Short-circuit protected push-pull output

EMC and ESD optimized design

The CUR 3105 is programmable by modu-

lating the supply voltage. No additional pro-

gramming pin is needed. The easy pro-

grammability allows a 2-point calibration by

adjusting the output voltage directly to the

Multiple programmable magnetic char-

acteristics in a non-volatile memory

(EEPROM) with redundancy and lock

function

中文翻译

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