SPX432S/TR datasheet, PDF - EEWORLD Datasheet

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SPX432S/TR: Description1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PDSO8; CategoryPower/power management The power supply circuit; File Size139KB，11 Pages; ManufacturerSIPEX; Websitehttp://www.sipex.com/

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SPX432S/TR Overview

1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PDSO8

SPX432S/TR Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	SIPEX
package instruction	MO-012AA, NSOIC-8
Reach Compliance Code	unknow
Other features	OUTPUT VOLTAGE ADJUSTABLE FROM 1.24V TO 18V
Analog Integrated Circuits - Other Types	TWO TERMINAL VOLTAGE REFERENCE
JESD-30 code	R-PDSO-G8
JESD-609 code	e0
length	4.9 mm
Humidity sensitivity level	1
Number of functions	1
Output times	1
Number of terminals	8
Maximum operating temperature	105 °C
Minimum operating temperature
Maximum output voltage	1.2524 V
Minimum output voltage	1.2276 V
Nominal output voltage	1.24 V
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOP8,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	240
Certification status	Not Qualified
Maximum seat height	1.75 mm
Maximum supply voltage (Vsup)	18 V
Minimum supply voltage (Vsup)	1.24 V
surface mount	YES
technology	BIPOLAR
Maximum voltage temperature coefficient	50 ppm/°C
Temperature level	OTHER
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
Fine-tuning/adjustable output	YES
Maximum voltage tolerance	1%
width	3.9 mm

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SPX432

1.24V Precision Adjustable Shunt Regulator

FEATURES

■

Low Voltage Operation, 1.24V

■

Trimmed Bandgap to 0.5% and 1%

■

Wide Operating Current, 1mA to 80mA

■

Adjustable Output Voltage, V

REF

to 18V

■

Extended Temp.Range: 0°C to 105°C

■

Low Temperature Coefficient, 50 ppm/°C

■

Offered in TO-92, SOIC, SOT-23-3

■

Replacement for TLV431, AS432

APPLICATIONS

■

Switching Power Supplies

■

Adjustable Supplies

■

Error Amplifiers

Anode

SPX432

3 Pin SOT-23

Ref

Cathode

Now Available in Lead Free Packaging

Refer to page 11 for other pinouts.

■

Single Supply Amplifier

Monitors / VCRs / TVs

Personal Computers

Voltage References

DESCRIPTION

The SPX432 is a 3-terminal adjustable shunt voltage regulator providing a highly accurate 1.24V

bandgap reference with 0.5% tolerance. The SPX432’s thermal stability, wide operating current

(80mA) and temperature range (0°C to 105°C) makes it suitable for a variety of applications. SPX432

tolerance of 0.5% is proven to be sufficient to overcome all of the other errors in the system to virtually

eliminate the need for trimming in the power supply manufactures’ assembly lines and contribute a

significant cost savings.

The SPX432 is an ideal voltage reference in an isolated feedback circuit for switch mode power

supplies. SPX432 offers many advantages over the TLV431 such as wider output voltage (18V vs.

6V), higher output current (80mA vs. 15mA) and a wider operating temperature range with a tighter

tolerance down to 0.5%.

BLOCK DIAGRAM

Cathode (K)

Reference

(R)

1.24V

Anode (A)

Date: 12/11/04

SPX432 1.24V Precision Adjustable Shunt Regulator

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