UNISONIC TECHNOLOGIES CO., LTD
TL432
Preliminary
LINEAR INTEGRATED CIRCUIT
3
4
5
2
1
1
2
3
1.25V PRECISION
ADJUSTABLE SHUNT
REFERENCE REGULATORS
DESCRIPTION
The UTC
TL432
is a three-terminal adjustable shunt regulator
highly accurate 1.25V band gap reference with 0.5%, 1% tolerance.
The device offers thermal stability, wide operating current (50mA)
and an extended temperature range of 0° to 105°C for operation in
power supply applications. The UTC
TL432
offers a wide operating
voltage range of up to 12V and is an excellent choice for voltage
reference requirements in an isolated feedback circuit for 3.0V ~
3.3V switching mode power supplies. The tight tolerance guarantees
a lower design cost for the power supply manufacturer by virtually
eliminating the need for an extra power supply manufacturing
process of the power supply.
SOT-23
SOT-25
1
SOT-89
SOP-8
1
TO-92
FEATURES
*Temperature-Compensated:50ppm/°C
*Internal amplifier with 50mA capability
*Nominal temperature range extended to 105°C
*Low frequency dynamic output impedance:<150Ω
*Low output noise
ORDERING INFORMATION
Ordering Number
Pin Assignment
Package
Lead Free
Halogen Free
1 2 3 4 5 6
TL432L-AE3-R
TL432G-AE3-R
SOT-23
K R A - - -
TL432L-AB3-R
TL432G-AB3-R
SOT-89
R A K - - -
TL432L-AF5-R
TL432G-AF5-R
SOT-25
X X K R A -
TL432L-T92-B
TL432G-T92-B
TO-92
R A K - - -
TL432L-T92-K
TL432G-T92-K
TO-92
R A K - - -
TL432L-S08-R
TL432G-S08-R
SOP-8
K A A X X A
Note: Pin Code: C: Cathode
A: Anode
R: Reference
X: No Connection
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A
8
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QW-R103-009.Oa
TL432
Preliminary
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATING
UNIT
Cathode-Anode Reverse Breakdown
V
KA
15
V
Anode-Cathode Forward Current
I
AK
1
A
Operating Cathode Current
I
KA
50
mA
Reference Input Current
I
REF
1
mA
Junction Temperature
T
J
+125
°C
Operating Temperature
T
OPR
-40 ~ +85
°C
Storage Temperature
T
STG
-40 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Cathode Voltage
Cathode Current
SYMBOL
V
KA
I
K
MIN
V
REF
5
TYP
10
MAX
15
UNIT
V
mA
THERMAL DATA
PARAMETER
SC-59/SOT-25
TO-92
Junction to Ambient
SOP-8
SOT-89
SYMBOL
θ
JA
RATING
350
100
150
220
UNIT
°C/W
°C/W
°C/W
°C/W
ELECTRICAL CHARACTERISTICS
(T
J
=25°C, V
KA
=V
REF,
I
K
=10mA, unless otherwise specified.)
PARAMETER
Refer Input Voltage
0.5%
1%
2%
SYMBOL
V
REF
ΔV
REF
ΔV
REF
ΔV
REF
I
REF
ΔI
REF
I
K(MIN)
I
KA(OFF)
V
REF
=0V,V
KA
=15V
TEST CONDITIONS
I
K
=10mA, V
K
=V
REF
V
K
=1.25 ~ 15V
I
K
=5 ~ 50mA
0<T
J
<105°C
0<T
J
<105°C
MIN
1.243
1.237
1.225
TYP MAX UNIT
1.250 1.256
V
1.250 1.263
V
1.250 1.275
V
10
26
mV
6
15
mV
2
6
mV
3
6
μA
0.3
0.6
0.6
1
500
μA
mA
nA
Line Regulation
Load Regulation
Temperature Deviation
Reference Input Current
Reference Input Current Temperature
Coefficient
Minimum Cathode Current for Regulation
Off State Leakage
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R103-009.Oa