UNISONIC TECHNOLOGIES CO., LTD
TL432C
1.24V PRECISION
ADJUSTABLE SHUNT
REFERENCE REGULATORS
DESCRIPTION
LINEAR INTEGRATED CIRCUIT
The UTC
TL432C
is a three-terminal adjustable shunt regulator
highly accurate 1.24V band gap reference with 1%, 2% tolerance.
The device offers thermal stability, wide operating current (50mA)
and an extended temperature range of 0C to 85°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
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.
FEATURES
*Temperature-Compensated: 50ppm/°C
*Internal Amplifier with 50mA Capability
*Nominal Temperature Range Extended to 85°C
*Low Frequency Dynamic Output Impedance:<150mΩ
*Low Output Noise
ORDERING INFORMATION
7
-
-
-
-
-
A
8
-
-
-
-
-
R
Packing
Tape Reel
Tape Reel
Tape Reel
Tape Box
Bulk
Tape Reel
Ordering Number
Pin Assignment
Package
Lead Free
Halogen Free
1 2 3 4 5 6
-
TL432CG-AB3-R
SOT-89
R A K - - -
-
TL432CG-AE3-R
SOT-23
K R A - - -
-
TL432CG-AF5-R
SOT-25
X X K R A -
TL432CL-T92-B
TL432CG-T92-B
TO-92
R A K - - -
TL432CL-T92-K
TL432CG-T92-K
TO-92
R A K - - -
-
TL432CG-S08-R
SOP-8
K A A X X A
Note: Pin Code: K: Cathode
A: Anode
R: Reference
X: No Connection
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QW-R103-022.K
TL432C
MARKING
PACKAGE
LINEAR INTEGRATED CIRCUIT
MARKING
SOT-89
3
SOT-23
432CG
2
1
SOT-25
SOP-8
TO-92
BLOCK DIAGRAM
CATHODE(K)
REFERENCE(R)
+
-
+
-
1.24V
ANODE(A)
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QW-R103-022.K
TL432C
ABSOLUTE MAXIMUM RATINGS
LINEAR INTEGRATED CIRCUIT
PARAMETER
SYMBOL
RATINGS
UNIT
Cathode-Anode Reverse Breakdown
V
KA
15
V
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
SYMBOL
V
KA
I
K
RATINGS
V
REF
~
15
5
~
10
UNIT
V
mA
Cathode Voltage
Cathode Current
THERMAL DATA
SYMBOL
θ
JA
RATING
350
100
150
220
UNIT
°C/W
°C/W
°C/W
°C/W
PARAMETER
SOT-23/SOT-25
TO-92
Junction to Ambient
SOP-8
SOT-89
ELECTRICAL CHARACTERISTICS
(T
J
=25°C , V
KA
=V
REF,
I
K
=10mA, unless otherwise specified.)
PARAMETER
SYMBOL
TL432C-A
TL432C-1
TL432C-2
TL432C-3
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
-40<T
J
<85°C
-40<T
J
<85°C
MIN
1.234
1.228
1.252
1.215
TYP
1.24
1.24
MAX UNIT
1.246
1.252
V
1.265
1.228
26
mV
15
mV
6
mV
6
μA
0.6
1
500
μA
mA
nA
Reference Input Voltage
Line Regulation
Load Regulation
Temperature Deviation
Reference Input Current
Reference Input Current Temperature
Coefficient
Minimum Cathode Current for Regulation
Off State Leakage
10
6
2
3
0.3
0.6
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R103-022.K
TL432C
LINEAR INTEGRATED CIRCUIT
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.K
嵌入式系统
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