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Электронный компонент: CL432D

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1.25VPrecision Adjustable
Shunt Reference / Amplifier
Preliminary Product Information
CL432
FEATURES

Temperature-Compensated: 50ppm/
o
C

Trimmed 0.5% Bandgap Reference

Internal Amplifier with 150mA Capability

Nominal Temperature Range Extended to 105
o
C

Low Frequency Dynamic Output Impedance: < 150m

Low Output Noise
DESCRIPTION
Calogic's CL432 is a 3-terminal Adjustable Shunt Regulator
highly accurate 1.25V bandgap reference with a 0.5%
tolerance. The device offers thermal stability, wide operating
current (100mA) and an extended temperature range of 0
o
to
105
o
C for operation in power supply applications. The CL432
offers a wide operating voltage range of up to 18V and is an
excellent choice for voltage reference requirements in an
isolated feedback circuit for 3.0V to 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.
The device is housed in several package options to meet the
designers criteria.
ORDERING INFORMATION
Part
Package
Temperature Range
CL432LP
TO-92
0 to 105
o
C
CL432D
8-Pin Plastic SOIC
0 to 105
o
C
CL432VS
SOT-23
0 to 105
o
C
CL432S
SOT-89
0 to 105
o
C
CORPORATION
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
CATHODE
ANODE
REFERENCE
TO-92 (LP)
1G-33
SOIC (D)
8
7
6
5
1
2
3
4
REFERENCE
ANODE
ANODE
N/C
CATHODE
ANODE
ANODE
N/C
1G-34
1G-35
CATHODE
ANODE
REFERENCE
SOT-89 (S)
PIN CONFIGURATION (Top View)
1J-22
CATHODE
REFERENCE
SOT-23 (VS)
ANODE
CL432
CORPORATION
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
RATING
UNITS
V
KA
Cathode-Anode Reverse Breakdown
18
V
I
AK
Anode-Cathode Forward Current
1
A
I
KA
Operating Cathode Current
100
mA
I
REF
Reference Input Current
1
mA
P
D
Continuous Power at 25
o
C
TO-92
8L
SOIC
SOT-23
SOT-89
775
750
1000
200
mW
mW
mW
mW
T
J
Junction Temperature
150
o
C
T
STG
Storage Temperature
65 to 150
o
C
T
L
Lead Temperature, Soldering 10 Seconds
300
o
C
Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating
only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification
is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
RECOMMENDED CONDITIONS
SYMBOL
PARAMETER
RATING
UNIT
V
KA
Cathode Voltage
V
REF
to 18
V
I
K
Cathode Current
10
mA
TYPICAL THERMAL RESISTANCES
PACKAGE
JA
JC
TYPICAL DERATING
TO-92
160
o
C/W
80
o
C/W
6.3mW/
o
C
SOIC
175
o
C/W
45
o
C/W
5.7mW/
o
C
SOT-23
575
o
C/W
150
o
C/W
1.7mW/
o
C
SOT-89
110
o
C/W
8
o
C/W
9.1mW/
o
C
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
1J-23
ANODE (A)
CATHODE (K)
1.25V
REFERENCE (R)
+
+
FUNCTIONAL BLOCK DIAGRAM
CL432
CORPORATION
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
ELECTRICAL CHARACTERISTICS
Electrical characteristics are guaranteed over full junction temperature range (0 to 105
o
C). Ambient temperature must be derated based on
power dissipation and package thermal characteristics. The conditions are: V
KA
= V
REF
and I
K
= 10mA unless otherwise stated.
SYMBOL
PARAMETER
MIN
TYP
MAX
UNIT
TEST CONDITION
V
REF
Output Voltage
1.244
1.250
1.256
V
I
K
= 10mA, T
J
= 25
o
C, V
K
= V
REF
V
REF
Line Regulation
10
15
mV
V
K
= 1.25 to 15V
V
REF
Load Regulation
3
6
mV
I
K
= 1 to 100mA
V
REF
Temperature Deviation
2
6
mV
0 < T
J
< 105
o
C
I
REF
Reference Input Current
3
6
A
I
REF
Reference Input Current Temperature
Coefficient
0.3
0.6
A
0 < T
J
< 105
o
C
I
K(MIN)
Min. Cathode Current for Regulation
0.6
1
mA
I
K(MIN)
Off State Leakage
0.04
500
nA
V
REF
= 0V, V
KA
= 18V
*Temperature deviation is defined as the maximum deviation of the reference over the given temperature range and does not imply an
incremental deviation at any given temperature.
TYPICAL PERFORMANCE CURVES (Not available at time of publishing)
Calogic reserves the right to make changes without further notice to any products described herein to improve reliability, function,
or design. Calogic does not assume any liability arising out of the application or use of any product or circuit described herein;
neither does it convey any license under its patent rights or the right of others. Calogic products are not authorized for use as
components in life support devices or systems intended for surgical implant into the body or intended to support or sustain life.
Buyer agrees to notify Calogic of any such intended end use whereupon Calogic will determine availability and suitability of its
products for the intended use. Calogic and the Calogic logo are trademarks of Calogic.
CL432
CORPORATION
Information furnished by Calogic is believed to be accurate and reliable. However, no responsibility is assumed for its use: nor for any infringement of patents or other
rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent rights of Calogic.
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
CL432
CORPORATION
TYPICAL PERFORMANCE CURVES
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
100
0.01
60
1G-43
OFF STATE LEAKAGE
30
0
30
60
90
120
10
1
0.1
CURRENT (nA)
V
KA
= 36V
V
REF
= 0V
AMBIENT TEMPERATURE (C)
T
A
OFF STATE CATHODE
I
Z
off
150
100
2
3
1G-42
HIGH CURRENT OPERATING
CHARACTERISTICS
75
50
25
0
25
50
75
125
100
2
1
0
1
CATHODE VOLTAGE (V)
V
KA
TEMPERATURE RANGE: 55 to 125C
V
KA
= V
REF
CATHODE CURRENT (m
A)
I
K
2.54
2.46
60
1G-44
TEMPERATURE COEFFICIENT AS
A FUNCTION OF TRIM VALUE
30
2.47
2.48
2.49
2.50
2.51
2.52
2.53
0
30
60
90
120
V
RE
F

RE
F
E
RE
NCE VOLTAGE (
V
)
AMBIENT TEMPERATURE
T
A
V
KA
= V
REF
I
K = 10mA
V
REF
= 2.503V AT 25C
V
KA
CATHODE VOLTAGE (V)
CATHODE CURRENT (
A)
I
K
900
200
1.0
3.0
1G-41
LOW CURRENT OPERATING
CHARACTERISTICS
1.0
0
2.0
100
800
700
600
500
400
300
200
100
0
125C
55C
25C
V
= V
REF
KA
TEMPERATURE RANGE: 55 to 125C
0
50
0
30
1G-46
REFERENCE VOLTAGE
LINE REGULATION
3
6
9
12 15 18 21 24 27
10
20
30
40
VOLTAGE (mV)
CHANGE IN REFERENCE
V
REF
CATHODE VOLTAGE (V)
V
KA
I
K
= 10mA
TEMPERATURE RANGE: 55 to 125C
55C
0C
25C
75C
125C
3.0
0
60
1G-45
REFERENCE
INPUT CURRENT
30
0
30
60
90
120
2.5
2.0
1.5
1.0
0.5
CURRENT (
A)
REFERENCE INPUT
I
REF
T
A
AMBIENT TEMPERATURE (C)
R1 = 10k
R2 =
I
K
= 10mA