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TS4431

Features: Internal 1.224V ±0.5% precision Low output saturation voltage 75 mV max between SINK and GND Low current consumption: 250A Industrial temperature range: -40 to +85 100ppm/ temperature coefficientApplication Low voltage switch mode power supplies Isolated DC/DC converter Computers Low vo...

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TS4431: Features: Internal 1.224V ±0.5% precision Low output saturation voltage 75 mV max between SINK and GND Low current consumption: 250A Industrial temperature range: -40 to +85 100ppm/ temperature coe...

TS4431 Data Sheet

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Part Number:
TS4431
Supply Ability:
5000

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  • 1~5000
  • Unit Price
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  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/5/21

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Product Details

Description



Features:

Internal 1.224V ±0.5% precision
Low output saturation voltage 75 mV max between SINK and GND
Low current consumption: 250A
Industrial temperature range: -40 to +85
 100ppm/ temperature coefficient


Application

Low voltage switch mode power supplies
Isolated DC/DC converter
Computers
Low voltage discrete regulator


Pinout

Connection Diagram


Specifications

Symbol
Parameter
Value
Unit
ISINK
 Output sink current
30
mA
VCC
 Supply voltage
12
V
VSINK
 Output voltage
12
V
PD
 Power Dissipation (1)SOT23-5
500
mW
TSTD
 Storage Temperature
-65 to +150
ESD
 Human Body Model (HBM)
2
kV
Machine Model (MM)
200
V
TLEAD
 Lead Temperature (soldering, 10 seconds)
250
1. PD has been calculated with TAMB = 25, TJunction=150 and
RthJA = 250/W for the SOT23-5 package
RthJC = 81/W for the SOT23-5 package


Description

The TS4431 is a four-terminal device dedicated to low voltage Switch Mode Power Supplies (SMPS).

It integrates a 1.224V voltage reference, an amplifier, and an open collector output transistor in a single package. The TS4431's operating mode is similar to the well-known standard voltage reference, the TL431.

 It maintains the desired feedback voltage at the REF pin in a closed loop configuration by sinking a current proportional to the error voltage at the REF pin. TS4431 features an open collector transistor with an ultra-low saturation voltage, allowing it to be used in series with the optocoupler in an SMPS architecture to regulate low voltage SMPS.




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