CL2431IVST1 [CALOGIC]
Two Terminal Voltage Reference, 1 Output, 2.5V, Trim/Adjustable, PDSO3, SOT-23, 3 PIN;
| 型号： | CL2431IVST1 |
| 厂家： | 
CALOGIC, LLC |
| 描述： | Two Terminal Voltage Reference, 1 Output, 2.5V, Trim/Adjustable, PDSO3, SOT-23, 3 PIN 光电二极管 |
| 文件： | 总6页 (文件大小：64K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Precision Adjustable
Shunt Reference
CORPORATION
CL2431
FEATURES
DESCRIPTION
• Temperature-Compensated: 30ppm/oC
• Trimmed 0.5% Bandgap Reference
• Internal Amplifier with 100mA Capability
• Temperature Range: Extended to 0 to 105oC
• Low Frequency Dynamic Output Impedance: < 150mΩ
• Low Output Noise
The CL2431 is a three terminal adjustable voltage reference
designed to act as an open-loop error amplifier with a 2.5V
temperature compensated reference. Operating as a low
temperature coefficient zener which is programmable from
VREF to 18V with two external resistors while providing a wide
operating current range of 1.0mA to 100mA with a typical
dynamic impedance of 0.15Ω. As a shunt regulator the
device can be used as either a positive or negative voltage
reference. Active output circuitry provides a very sharp
turn-on characteristic, making the CL2431 an excellent
replacement for low-voltage zener diodes in many
applications, including on-board regulation and adjustable
power supplies.
• SOT-23 Replacement for TL431
ORDERING INFORMATION
Part
Package Tolerance Temperature Range
CL2431VS
SOT-23
1.0%
0.5%
1.0%
0.5%
0 to +105oC
0 to +105oC
-40 to +85oC
-40 to +85oC
CL2431AVS SOT-23
CL2431IVS SOT-23
CL2431IAVS SOT-23
PIN CONFIGURATION (Top View)
SOT-23 (VS)
CATHODE
ANODE
REFERENCE
1J-22
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
CL2431
CORPORATION
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
RATING
UNITS
VKA
IAK
Cathode-Anode Reverse Breakdown
Anode-Cathode Forward Current
Operating Cathode Current
18
1
V
A
IKA
100
1
mA
mA
IREF
PD
Reference Input Current
Continuous Power Dissipation at 25oC
SOT-23
200
150
mW
oC
TJ
Junction Temperature
TSTG
TL
Storage Temperature
–65 to 150
300
oC
Lead Temperature, Soldering 10 Seconds
oC
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
TYPICAL THERMAL RESISTANCES
SYMBOL
PARAMETER
Cathode Voltage
Cathode Current
RATING
VREF to 18
10
UNIT
V
PACKAGE
θJA
θJC
TYPICAL DERATING
VKA
IK
SOT-23
575oC/W
150oC/W
1.7mW/oC
mA
FUNCTIONAL BLOCK DIAGRAM
CATHODE (K)
+
–
REFERENCE (R)
2.5V
ANODE (A)
1G-36
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
CL2431
CORPORATION
ELECTRICAL CHARACTERISTICS
Electrical characteristics are guaranteed over full junction temperature range (0 to 105oC). Ambient temperature must be derated based on
power dissipation and package thermal characteristics. The conditions are: VKA = VREF and IK = 10mA unless otherwise stated.
SYMBOL
VREF
PARAMETER
Reference Voltage
MIN
TYP
2.500
2.500
0.6
MAX
2.515
2.520
0.2
UNIT CIRCUIT
TEST CONDITION
A = 25oC, 0.5% CL2431A
TA = 25oC, 1.0% CL2431
2.490
2.470
V
1
1
1
T
V
TC
∆VREF with Temp.*
mV/ oC
–2.7
–2
–1.01
–0.4
0.7
VREF to 10V
10V to 18V
∆VREF
∆VK
Ratio of Change in VREF to
Cathode Voltage
mV/V
2
0.3
4
IREF
Reference Input Current
IREF Temp Deviation
µA
µA
mA
nA
Ω
2
2
1
3
1
∆IREF
IK(MIN)
IK(OFF)
ZKA
0.4
1.2
1
Over Temp.
Min IK for Regulation
Off State Leakage
0.4
0.04
0.15
250
0.5
VREF = 0V, VKA = 18V
Dynamic Output Impedance
f ≤ 1kHz, IK = 1 to 100mA
*CALCULATING AVERAGE TEMPERATURE COEFFICIENT (TC)
%
∆VREF (mV)
• TC in mV/oC =
• TC in %/oC =
• TC in ppm/oC =
0
0
0
∆VREF
∆TA
∆T
∆VREF
VREF at 25oC
2000
0.2
–5
x 100
∆TA
–10
0
15 30 45 60 75 90 105
TEMPERATURE (˚C)
∆VREF
VREF at 25oC
x 106
0.019 mV/˚C
0.001 %/˚C
∆TA
7.6 ppm/˚C
1J-28
TEST CIRCUITS
VIN
VKA
VIN
VKA
VIN
VKA= VREF
IK
IK(OFF)
IK
IREF
R1
(VREF
R2
IREF
)
1G-38
1G-39
1G-40
TEST CIRCUIT 1
TEST CIRCUIT 2
TEST CIRCUIT 3
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
CL2431
CORPORATION
TYPICAL PERFORMANCE CURVES
LOW CURRENT OPERATING
CHARACTERISTICS
HIGH CURRENT OPERATING
CHARACTERISTICS
900
800
700
600
500
400
300
200
100
0
150
125
100
75
V
= V
V
= V
REF
KA
REF
KA
TEMPERATURE RANGE: –55 to 125˚C
TEMPERATURE RANGE: –55 to 125˚C
50
125˚C
25˚C
25
0
–55˚C
–25
–50
–75
–100
–100
–200
–1.0
0
1.0
2.0
3.0
–2
–1
V – CATHODE VOLTAGE (V)
KA
0
1
2
3
V
– CATHODE VOLTAGE (V)
1G-41
1G-42
KA
TEMPERATURE COEFFICIENT AS
A FUNCTION OF TRIM VALUE
OFF STATE LEAKAGE
= 18V
2.53
2.52
2.51
2.50
2.49
2.48
2.47
2.46
2.45
100
10
V
= V
REF
V
V
KA
= 10mA
KA
I
= 0V
K
REF
V
= 2.500V AT 25˚C
REF
1
0.1
0.01
–60 –30
0
30
60
90 120
–60 –30
0
30
60
90 120
T
– AMBIENT TEMPERATURE (˚C)
T
– AMBIENT TEMPERATURE (˚C)
1P-43
1J-29
A
A
REFERENCE
INPUT CURRENT
REFERENCE VOLTAGE
LINE REGULATION
3.0
2.5
2.0
1.5
1.0
0.5
0
0
–10
–20
–30
–40
–50
R1 = 10kΩ
R2 = ∞
I
= 10mA
K
–55˚C
0˚C
25˚C
75˚C
125˚C
I
= 10mA
K
TEMPERATURE RANGE: –55 to 125˚C
–60 –30
0
30
60
90 120
0
3
6
9
12
15
18
T
– AMBIENT TEMPERATURE (˚C)
V
KA
– CATHODE VOLTAGE (V)
1G-45
1J-30
A
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
CL2431
CORPORATION
TYPICAL PERFORMANCE CURVES (continued)
LOW FREQUENCY DYNAMIC
OUTPUT IMPEDANCE
NOISE VOLTAGE
70
0.150
0.125
0.100
0.075
0.050
0.025
0.0
V
= V
KA
REF
= 1 TO 100mA
I
60
50
40
30
20
KA
f ≤ 1kHz
V
= V
REF
KA
10
I
= 10mA
= 25˚C
K
T
A
0
10
100
1k
10k
100k
–60 –30
0
30
60
90 120
f – FREQUENCY (Hz)
T
A
– FREE AIR TEMPERATURE
1G-47
1G-48
DYNAMIC OUTPUT
IMPEDANCE
= 25˚C
100
10
T
A
I
= 1 TO 100mA
K
1.0
0.1
0.01
1k
10k
100k
1M
10M
f – FREQUENCY (Hz)
1G-49
SMALL SIGNAL VOLTAGE GAIN
vs FREQUENCY
70
TEMPERATURE RANGE: –55 to 125˚C
OUT
60
50
40
30
20
10
0
230Ω
15k
IK
9µF
I
= 10mA
K
8.25k
GND
1H-01
1k
10k
100k
1M
10M
f – FREQUENCY (Hz)
1J-31
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
CL2431
CORPORATION
TYPICAL PERFORMANCE CURVES (continued)
PULSE RESPONSE
6
INPUT
INPUT
MONITOR
220
Ω
5
OUT
4
3
2
OUTPUT
50Ω
fP = 100kHz
1
GND
1H-03
0
–1
0
1 2 3 4 5 6 7 8 9 10 11 12
t – TIME (µs)
1H-02
STABILITY BOUNDARY
CONDITIONS
100
90
80
70
60
50
40
30
20
10
0
A: V = V
KA REF
B: V = 5V AT I = 10mA
KA
150Ω
K
C: V = 10V AT I = 10mA
KA
K
D: V = 15V AT I = 10mA
KA
K
IK
C
STABILITY
REGION
CL
10k
A
B
1H-05
D
T
= 25˚C
1
A
0
2
3
4
5
6
7
10 10 10 10 10 10 10 10
C
– LOAD CAPACITANCE (pF)
1H-04
L
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
相关型号：
CL2431VST1
Two Terminal Voltage Reference, 1 Output, 2.5V, Trim/Adjustable, PDSO3, SOT-23, 3 PIN
CALOGIC
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