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ZTL432 Datasheet

COST EFFECTIVE ADJUSTABLE PRECISION SHUNT REGULATOR

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ZTL431/ZTL432
COST EFFECTIVE ADJUSTABLE PRECISION SHUNT REGULATOR
Description
The ZTL431 and ZTL432 are three terminal adjustable shunt
regulators offering excellent temperature stability and output current
handling capability up to 100mA. The output voltage may be set to
any chosen voltage between 2.5 and 20 volts by selection of two
external divider resistors.
The devices can be used as a replacement for zener diodes in many
applications requiring an improvement in zener performance.
The ZTL432 has the same electrical specifications as the ZTL431 but
has a different pin out in SOT23 (F-suffix) and SOT23F (FF-suffix).
Both variants are available in two grades with initial tolerances of 1%
and 0.5% for the A and B grades, respectively.
These are functionally equivalent to the TL431/TL432 except for
maximum operation voltage, and have an ambient temperature range
of -40°C to +125°C as standard.
Features
Temperature Range ................ -40°C to +125°C
Reference Voltage Tolerance at +25°C
0.5%.......................................B grade
1% .........................................A grade
0.2Ω Typical Output Impedance
Sink Current Capability…….. 1mA to 100mA
Adjustable Output Voltage……VREF to 20V
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
An Automotive-Compliant Part is Available Under Separate
Datasheet (ZTL431AQ, ZTL431BQ, ZTL432AQ, ZTL432BQ)
Applications
Opto-Coupler Linearization
Linear Regulators
Improved Zener
Variable Reference
Pin Assignments
(Top View)
Cathode 3
Ref 2
1 Anode
SOT23, SOT23F
(ZTL431)
(Top View)
Ref 3
Cathode 2
1 Anode
SOT23, SOT23F
(ZTL432)
(Top View)
Cathode 1
6 Anode
N/C
2
5
N/C
Ref 3
4 NC
SOT363
†Connected internally to substrate;
should be left floating or connected to Anode
(Top View)
Cathode 1
Anode 2
Ref 3
5 N/C
4 N/C
SOT25 (SE5 Package)
(Top View)
N/C 1
N/C* 2
5 Anode
Cathode 3
4 Ref
SOT25 (E5 Package)
*must be left floating or
connected to pin 5
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green" products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)
and <1000ppm antimony compounds.
ZTL431/ZTL432
Document number: DS33263 Rev. 18 - 2
1 of 12
www.diodes.com
August 2017
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

ZTL432 Datasheet

COST EFFECTIVE ADJUSTABLE PRECISION SHUNT REGULATOR

No Preview Available !

ZTL431/ZTL432
Absolute Maximum Ratings (Voltages specified are relative to the Anode pin unless otherwise stated.)
Parameter
Cathode Voltage (VKA)
Continuous Cathode Current (IKA)
Reference Input Current Range (IREF)
Operating Junction Temperature
Storage Temperature
Rating
20
150
-50µA to +10mA
-40 to +150
-55 to +150
Operation above the absolute maximum rating may cause device failure.
Operation at the absolute maximum ratings, for extended periods, may reduce device reliability.
Unit
V
mA
°C
°C
Package Thermal Data
Package
SOT23
SOT23F
SOT25
SOT363
JA
380°C/W
138°C/W
250°C/W
380°C/W
PDIS
TA = +25°C, TJ = +150°C
330mW
900mW
500mW
330mW
Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.)
Symbol
VKA
IKA
TA
Parameter
Cathode Voltage
Cathode Current
Operating Ambient Temperature Range
Min
VREF
1
-40
Max
20
100
+125
Unit
V
mA
°C
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
Symbol
Parameter
Conditions
Min Typ Max Unit
VREF Reference Voltage
VDEV
Deviation of Reference Voltage Over Full
Temperature Range
VREF Ratio of Change In Reference Voltage
VKA To the Change In Cathode Voltage
VKA = VREF
IKA = 10mA
VKA = VREF
IKA = 10mA
IKA = 10mA
ZTL43_A
ZTL43_B
2.475 2.5 2.525
2.487 2.5 2.513
V
TA = 0 to +70°C
6
16
TA = -40 to +85°C
14
34 mV
TA = -40 to +125°C 14 34
VKA = VREF to 10V
VKA = 10V to 20V
-1.4 -2.7
mV/V
-1.0 -2.0
IREF
IREF
Reference Input Current
IREF Deviation Over Full Temperature Range
IKA = 10mA, R1 = 10kΩ,
R2 = O/C (Open Circuit)
IKA = 10mA
R1 = 10kΩ
R2 = O/C (Open
Circuit)
TA = 0 to +70°C
TA = -40 to +85°C
TA = -40 to +125°C
24
0.8 1.2
0.8 2.5
0.8 2.5
µA
µA
IKA(MIN) Minimum Cathode Current for Regulation
VKA = VREF
0.4 0.6 mA
IKA(OFF) Off State Current
VKA = 20V, VREF =
0V
0.1 0.5 µA
RZ Dynamic Output Impedance
VKA = VREF, f = 0Hz
0.2 0.5
ZTL431/ZTL432
Document number: DS33263 Rev. 18 - 2
2 of 12
www.diodes.com
August 2017
© Diodes Incorporated


Part Number ZTL432
Description COST EFFECTIVE ADJUSTABLE PRECISION SHUNT REGULATOR
Maker Diodes
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