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TL432A

Low Voltage Adjustable Precision Shunt Regulator

Wing Shing International Group 

TL432A

Low Voltage Adjustable Precision Shunt Regulator

Features:

• Precise Reference Voltage to 1.24V

• Guaranteed 1% Reference Voltage

Tolerance

• Sink Current Capability, 80µA to100mA

• Quick Turn-on

• Adjustable Output Voltage, Vo=VREF to 18V

• 0.2 Ω Typical Output Impedance

Order Information

Order Number

TL432ACPL

TL432ACPK

TL432ALT1

Package

TO-92

SOT-89T&R

SOT-23T&R

Package and Pin Connections

R

A

K

TO-92

K

A

R

RA K

SOT-89

A

R

K

SOT-23

Absolute Maximum Ratings

Symbol

Parameter

VKA

Cathode voltage

IK

Continuous cathode current range

I REF

Reference current range

Tj

Operating Junction Temperature Range

Rating

Unit

18

V

100

mA

3

mA

- 40 to 150

°C

Electrical Characteristics TA= 25°C ( unless otherwise noted)

Symbol

Parameter

Test Conditions

VRFF

VDEV

∆VREF/∆VKA

IREF

IREF(DEV)

Ik(off)

Zka

IK(MIN)

Reference voltage

VREF Temp Deviation

Ratio of Change in VREF to

Change in Cathode Voltage

Reference Input Current

IREF Temp Deviation

Off-state cathode current

Dynamic Output

Impedance

VKA=VREF, lK=10mA (Fig. 1)

TA =25°C

TA=full range(see Note1)

VKA=VREF, lK=10mA(Fig. 1)

!K=10mA, VKA=18V to VREF

(Fig. 2)

IK=10mA, R1 =10kΩ R2=∞

(Fig.2)

TK=full range (see Note 1),

R1 =10kΩ, R2=∞, IK=10mA

(Fig. 2)

VREF=0 V,(Fig.3)

Vk=18V

Vka=Vref, Ik=1mA to 100mA

F ≤1kHz (Fig. 1)

Minimum Operating Current VKA=VREF(Fig. 1)

Notes: 1. Full temperature range is -40°C to 105°C for TL432

TL432A

Min Typ Max

1.228 1.240 1.252

10

25

-1 -2.7

0.25 0.5

0.05 0.3

0.04 0.5

0.2 0.4

60

80

Unit

V

mV

mV / V

µA

µA

µA

Ω

µA

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