Document
Low Voltage(1.24V) Adjustable Precision Shunt Regulator
PROGRAMMABLE PRECISION REFERENCES
TL432Z/AZ/CZ
FEATURES
● ● ● ● ● Low Voltage Operation : 1.24 V Programmable Out Voltage to 16V Sink Current Capability of 1 mA to 100 mA Equivalent Full-Range Temperature Coefficient of 50 ppm/℃ Temperature Compensated for Operation over Full Rated
TO-92 PKG
3.Cathode 2.Anode 1.Reference
Operating Temperature Range
● Trimmed Bandgap to 5%
SOT-23 PKG
2.Anode
1.Reference
3.Cathode
APPLICATION
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● Shunt Regulator ● Voltage Monitoring ● Current Source and Sink Circuits ORDERING INFORMATION Device Marking ● Anolog and Digital Circuits Requiring Precision References TL432-AZ TL432-AZ ● Low Out Voltage (3.0V to 3.3V) Switching Power Supply TL432-CZ TL432-CZ Error Amplifier
TL432-AZSF TL432-CZSF 432
Package TO-92 SOT-23
DESCRIPTION
The TL432Z/AZ/CZ is a three-terminal Shunt Voltage Reference providing a highly accuracy 1.24 V, 1.25V bandgap reference with 1.0 % tolerance. The TL432Z/AZ/CZ thermal stability and wide operating current (100mA), makes is suitable for all variety of applications that are looking for a low cost solution with high performance. The TL432Z/AZ/CZ is an ideal voltage reference in an isolated feed circuit for 3.0V to 3.3V switching mode power supplies.
Jan. 2007 - Rev 1.0
HTC
1
Low Voltage(1.24V) Adjustable Precision Shunt Regulator
FUNCTION BLOCK DIAGRAM
TL432Z/AZ/CZ
CATHODE REFERENCE + REFERENCE(R) 1.24VREF
CATHODE(K)
ANODE(A)
ANODE
EQUIVALENT SCHEMATIC
All component values are nominal
Jan. 2007 - Rev 1.0
HTC
2
Low Voltage(1.24V) Adjustable Precision Shunt Regulator
RECOMMENDED OPERATING CONDITIONS
CHARACTERISTIC Cathode Voltage Cathode Current SYMBOL VKA IK MIN. VREF 8
TL432Z/AZ/CZ
MAX. 16 100
UNIT V ㎃
DISSIPATION RATING TABLE1-FREE-AIR TEMPERATURE
TA=25℃ Power Rating 770㎽ 230㎽ Derating Factor Above TA=25℃ 6.2㎽/℃ 1.8㎽/℃ TA=70℃ TA=85℃ TA=125℃
Package TO-92 SOT-23
Power Rating Power Rating Power Rating 491㎽ 149㎽ 398㎽ 122㎽ -
ABSOLUTE MAXIMUM RATINGS
(Full Operating Ambient Temperature Range Applies Unless Otherwise Noted)
CHARACTERISTIC Cathode Voltage Continuous Cathode Current Range Reference Input Current Range Junction Temperature Operating Temperature Storage Temperature Total Power Dissipation
SYMBOL VKA IKA IREF TJ TOPR TSTG PD
RATING 20 100 3 -40 ~ 150 0 ~ 70 -65~+150 770
UNIT V ㎃ ㎃ ℃ ℃ ℃ ㎽
Jan. 2007 - Rev 1.0
HTC
3
Low Voltage(1.24V) Adjustable Precision Shunt Regulator
TL432Z/AZ/CZ
TL432AZ/CZ ELECTRICAL CHARACTERISTICS
CHARACTERISTIC SYMBOL
(TA=25℃, unless otherwise specified)
TEST CONDITION TL432AZ MIN. 1.228 1.24 TL432CZ 1.233 1.247 TYP. MAX. 1.252 V UNIT
Reference Input Voltage
VREF
VKA=VREF, IK=10㎃
Deviation of Reference Input Voltage Over Full Temperature Range Ratio of Change in Reference Input Voltage
ΔVREF/ΔVKA
VKA=VREF, IK=10㎃ ΔVREF/ΔT TA=Full Range 1 25 ㎷
VKA=1.25V to 14.5V
1.0
2.7
㎷/V
to the Change in Cathod Voltage Reference Input Current Deviation of Ref.