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Vedi Specifiche Tecniche

LM234Z-6/NOPB +BOM

Current Regulator Diode 400mW 3-Pin TO-92 Bulk

Produttore:

Texas Instruments, Inc
ProduttorePart #:

LM234Z-6/NOPB
Scheda dati:

LM234Z-6/NOPB Scheda dati (PDF)
Iout/Iz (max) (mA):

0.01
Vin (min) (V):

0.8
Vin (max) (V):

40
Operating Temperature Range (°C):

-25 to 100
EDA/CAD Modelli:

Richiedi modelli CAD gratuiti per LM234Z-6/NOPB

E-mail: [email protected]

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tel: +852 95804164

LM234Z-6/NOPB Descrizione generale

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.

Caratteristiche principali

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.

Specifiche

Iout/Iz (max) (mA)	0.01	Vin (min) (V)	0.8
Vin (max) (V)	40	Operating temperature range (°C)	-25 to 100
Initial accuracy (max) (%)	3	Rating	Catalog
feature-packaging	Bulk	feature-rad-hard
feature-pin-count	3	feature-cecc-qualified	No
feature-esd-protection	Yes	feature-escc-qualified
feature-military	No	feature-aec-qualified	No
feature-aec-qualified-number		feature-eccn-code	EAR99
feature-svhc	No	feature-svhc-exceeds-threshold	No

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