TL431I Philips Semiconductors, TL431I Datasheet

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TL431I

Manufacturer Part Number
TL431I
Description
TL431IAdjustable precision shunt regulators
Manufacturer
Philips Semiconductors
Datasheet

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March 2002
DESCRIPTION
The TL431 is a programmable shunt voltage
reference with guaranteed temperature stability
over the entire temperature range of operation.
The output voltage may be set to any value
between 2.5V and 36V with two external resistors.
The TL431 operates with a wide current range
from 1 to 100mA with a typical dynamic
impedance of 0.22 .
ORDER CODE
Z = TO92 Plastic package - also available in Bulk (Z), Tape & Reel (ZT)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
PIN CONNECTIONS (top view)
TL431C/AC
TL431I/AI
Number
and Ammo Pack (AP)
ADJUSTABLE OUTPUT VOLTAGE :
2.5 to 36V
SINK CURRENT CAPABILITY : 1 to 100mA
TYPICAL OUTPUT IMPEDANCE : 0.22
1% AND 2% VOLTAGE PRECISION
Part
-40°C, +105°C
Temperature
0°C, +70°C
Range
(Top view)
TO92
PROGRAMMABLE VOLTAGE REFERENCE
Package
Z
D
(Batwing Plastic Micropackage)
(Top view)
(Plastic Package)
SO8
TO92
Z
SO8
D
1- Cathode
2- Anode
2-
3- Anode.
4- N.C.
5- N.C.
6- Anode
7- Anode.
8- Reference
TL431
1/10

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TL431I Summary of contents

Page 1

... Package Part Temperature Number Range Z TL431C/AC 0°C, +70°C TL431I/AI -40°C, +105° TO92 Plastic package - also available in Bulk (Z), Tape & Reel (ZT) and Ammo Pack (AP Small Outline Package (SO) - also available in Tape & Reel (DT) PIN CONNECTIONS (top view) TO92 (Top view) March 2002 ...

Page 2

... ref ref max. ref min. 2) The dynamic Impedance is definied as ZKA 2/10 Parameter TO92 SO8 batwing = 200°C/W for TO92 package thja = 130°C/W for SO8 batwing package Parameter TL431I/AI TL431C Min. Typ 25°C 2.44 2.495 amb T T 2.423 amb max T T ...

Page 3

... KA ref V is defined as the difference between the maximum and minimum values obtained over the full temperature range. ref ref ref max. ref min. 2) The dynamic Impedance is definied as ZKA TL431I Min. Typ. = 25°C 2.44 2.495 amb T T 2.41 amb max T T ...

Page 4

TL431 Figure 1 : Test Circuit for Input R I =10mA K V REF Figure 3 : Test Circuit for I OFF V =36V KA I OFF Figure 5 : Block diagram of TL1431 Cathode Cathode ...

Page 5

Reference voltage vs Temperature 2.54 2.52 2.50 2.48 2.46 2.44 -40 - Temperature ( C) Reference voltage vs cathode current + AMB Cathode voltage V KA ...

Page 6

TL431 Static impedance R vs Temperature KA 0.30 0.28 0.26 0.24 0.22 0.20 -40 - Temperature ( C) Gain & Phase vs Frequency 60 Gain 40 Phase 20 0 -20 - 100 Frequency (kHz) Maximum ...

Page 7

PACKAGE MECHANICAL DATA 8 PINS - BATWING PLASTIC MICROPACKAGE (SO Dim. Min 0 0.65 b 0.35 b1 0. 4 3 ...

Page 8

TL431 PACKAGE MECHANICAL DATA 3 PINS - PLASTIC PACKAGE TO92 (TAPE & REEL) Dim. Min 2.5 P 11.7 PO 12.4 P2 5.95 F1/F2 2 17.5 W0 5.7 W1 8.5 W2 ...

Page 9

TL431 PACKAGE MECHANICAL DATA 3 PINS - PLASTIC PACKAGE TO92 (TAPE AMMO PACK) Dim. Min 2.5 P 11.7 PO 12.4 P2 5.95 F1/F2 2 17.5 W0 5.7 W1 8.5 W2 ...

Page 10

PACKAGE MECHANICAL DATA 3 PINS - PLASTIC PACKAGE TO92 (BULK) Dim. Min L B 3.2 O1 4.45 C 4.58 K 12.7 O2 0.407 a 0.35 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for ...

Page 11

Copyright © Each Manufacturing Company. All Datasheets cannot be modified without permission. This datasheet has been download from : www.AllDataSheet.com 100% Free DataSheet Search Site. Fast Search System. www.AllDataSheet.com Free Download. No Register. ...

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