UNISONIC TECHNOLOGIES CO., LTD
TL432C
1.24V PRECISION
ADJUSTABLE SHUNT
REFERENCE REGULATORS
DESCRIPTION
The UTC
TL432C
is a three-terminal adjustable shunt regulator
highly accurate 1.24V bandgap reference with 1%, 2% 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
TL432C
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
quarantees 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.
LINEAR INTEGRATED CIRCUIT
1
1
SOT-89
TO-92
3
1
SOP-8
3
2
2
1
SOT-23
5
4
SOT-25
*Pb-free plating product number: TL432CL
FEATURES
*Temperature-Compensated: 50ppm/°C
*Internal amplifier with 50mA capability
*Nominal temperature range extended to 105°C
*Low frequency dynamic output impedance:<150mΩ
*Low Output Noise
ORDERING INFORMATION
Order Number
PIN CODE
Package
Normal
Lead Free Plating
1 2 3 4 5 6 7 8
TL432C-AB3-R
TL432CL-AB3-R
R A K - - - - -
SOT-89
TL432C-AE3-R
TL432CL-AE3-R
K R A - - - - -
SOT-23
TL432C-AF5-R
TL432CL-AF5-R
X X K R A - - -
SOT-25
TL432C-T92-B
TL432CL-T92-B
R A K - - - - -
TO-92
TL432C-T92-K
TL432CL-T92-K
R A K - - - - -
TO-92
TL432C-S08-R
TL432CL-S08-R
K A A X X A A R
SOP-8
TL432C-S08-T
TL432CL-S08-T
K A A X X A A R
SOP-8
Note: Pin Code: C: Cathode A: Anode R: Reference X: No Connection
TL432CL-AB3-R
(1)Packing Type
(2)Package Type
(3)Lead Plating
Packing
Tape Reel
Tape Reel
Tape Reel
Tape Box
Bulk
Tape Reel
Tube
(1) B: Tape Box, K: Bulk, R: Tape Reel, T: Tube
(2) AB3: SOT-89, AE3: SOT-23, AF3: SOT-25,
S 08: SOP-8, T92: TO-92
(3) L: Lead Free Plating Blank: Pb/Sn
,
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Copyright © 2005 Unisonic Technologies Co., Ltd
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QW-R103-022.D
TL432C
MARKING INFORMATION
PACKAGE
MARKING
LINEAR INTEGRATED CIRCUIT
3
432C
2
1
SOT-23
3
2
1
SOT-25
432 C
4
5
BLOCK DIAGRAM
CATHODE(K)
REFERENCE(R)
+
-
+
-
1.24V
ANODE(A)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R103-022.D
TL432C
ABSOLUTE MAXIMUM RATINGS
LINEAR INTEGRATED CIRCUIT
PARAMETER
SYMBOL
RATINGS
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
0 ~ +70
°C
Storage Temperature
T
STG
-40 ~ +150
°C
Note 1. 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.
2. The device is guaranteed to meet performance specification within 0℃ ~ 70
℃
operating temperature range
and assured by design from -20℃ ~ 85℃.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Cathode Voltage
Cathode Current
SYMBOL
V
KA
I
K
MIN
V
REF
5
TYP
10
MAX
15
UNIT
V
mA
TYPICAL THERMAL DATA
PARAMETER
SYMBOL
PACKAGE
TO-92
SOP-8
SOT-89
SOT-23
SOT-25
RATING
100
150
220
350
350
UNIT
Thermal Resistance Junction to Ambient
θ
JA
°C/W
ELECTRICAL CHARACTERISTICS
(T
J
=25°C , V
KA
=V
REF,
I
K
=10mA, unless otherwise specified.)
PARAMETER
Reference Input Voltage
1%
2%
SYMBOL
V
REF
∆V
REF
∆V
REF
∆V
REF
I
REF
∆I
REF
I
K(MIN)
I
KA(OFF)
V
REF
=0V, V
KA
=15V
TEST CONDITIONS
I
K
=10mA, V
K
=V
REF
V
K
=1.24 ~ 15V
I
K
=5 ~ 50mA
0<T
J
<105°C
0<T
J
<105°C
MIN TYP MAX UNIT
1.228 1.240 1.252
V
1.215 1.240 1.265
V
10
15
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-R103-022.D
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