ZRA245F03TA [DIODES]
Two Terminal Voltage Reference, 1 Output, 2.45V, PDSO3, SOT-23, 3 PIN;
| 型号： | ZRA245F03TA |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | Two Terminal Voltage Reference, 1 Output, 2.45V, PDSO3, SOT-23, 3 PIN 光电二极管 |
| 文件： | 总5页 (文件大小：74K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PRECISION 2.45 VOLT
VOLTAGE REFERENCE
ISSUE 3 — MARCH 1998
ZRA245
DEVICE DESCRIPTION
FEATURES
The ZRA245 uses a bandgap circuit design
to achieve a precision voltage reference of
2.45 volts. The device is available in small
outline surface mount packages, ideal for
applications where space saving is
important.
Small outline SOT23, SO8 and TO92
style package
•
No stabilising capacitor required
Typical TC 15ppm/°C
•
•
•
•
•
•
Typical slope resistance 0.26Ω
± 3% , 2% and 1% tolerance
Industrial temperature range
Operating current 2mA to 120mA
The ZRA245 design providesa stablevoltage
without an external capacitor and is stable
with capacitive loads. The ZRA245 is
recommended for operation between 2mA
and 120mA.
APPLICATIONS
Battery powered and portable
equipment.
•
Metering and measurement systems.
•
Instrumentation.
•
Test equipment.
•
Data acquisition systems.
•
Precision power supplies.
•
SCHEMATIC DIAGRAM
VR
1.25VREF
Gnd
4-227
ZRA245
Power Dissipation (Tamb=25°C)
ABSOLUTE MAXIMUM RATING
Reverse Current
Forward Current
Operating Temperature
Storage Temperature
SOT23
330mW
200mA
25mA
-40 to 85°C
-55 to 125°C
E-Line, 3 pin (TO92)
E-Line, 2 pin (TO92)
SO8
500mW
500mW
625mW
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) Tamb=25°C
CONDITIONS
LIMITS
TOL.
%
UNITS
SYMBOL PARAMETER
MIN TYP MAX
VR
Reverse Breakdown Voltage
IR=5mA
2.43
2.40
2.38
2.45 2.47
2.45 2.50
2.45 2.52
1
2
3
V
IMIN
IR
Minimum Operating Current
2
mA
mA
Recommended Operating
Current
2
120
TC
†
Average Reverse Breakdown
Voltage Temp. Co.
15
50
ppm/°C
I
R(min) to
IR(max)
RS
ZR
§
Slope Resistance
0.26 0.5
0.28 1
Ω
Ω
Reverse Dynamic Impedance IR = 5mA
= 100Hz
AC=0.1 IR
f
I
EN
Wideband Noise Voltage
IR= 5mA
f = 10Hz to
10kHz
65
µV(rms)
(VR(max)−VR(min)) x 1000000
†
T =
C
VR x (T(max)−T(min)
)
Note: VR(max) - VR(min) is the maximum
deviation in reference voltage measured
over the full operating temperature
range.
VR Change(I (min) to IR (max))
R
§
R =
S
I
R (max) − IR (min)
4-228
ZRA245
TYPICAL CHARACTERISTICS
1.6
1.4
1.2
1.0
0.8
0.6
0.4
2.46
2.45
2.44
2.43
1
10
100
1000
-40
-20
0
20
40
60
80
Forward Current (mA)
Temperature (°C)
Forward Characteristics
Temperature Drift
100
10
0.6
IR=2mA
TA=-40°C
IR=5mA
0.4
0.2
0
IR=20mA
TA=25°C
TA=85°C
1
0.1
1
10
100
0.01
0.1
1
10
100
Frequency (KHz)
Reference Current (mA)
Slope Resistance v Current
Slope Resistance v Frequency
4.0
3.0
20mA
TA=25°C
2.0
1.0
2mA
VIN
0.36K
20mA
VR
3K6
2mA
2.0
0
10
0
0
0
1.0
2.0
3.0
0
5
10
15
20
Reverse Voltage (V)
Time (µs)
Transient Response
Reverse Characteristics
4-229
ZRA245
CONNECTION DIAGRAMS
E-Line, 2 pin Package Suffix – Y
E-Line, 3 pin,Rev Package Suffix – R
Bottom View
Bottom View –
Pin 3 floating or connected to pin 1
E-Line, 3 pin Package Suffix – A
SO8 Package Suffix – N8
Bottom View –
Pin 1 floating or connected to pin 3
Top View
SOT23 Package Suffix – F
Top View –
Pin 1 floating or connected to pin 2
4-230
ZRA245
ORDERING INFORMATION
Part No
Tol% Package Partmark
Part No
Tol% Package Partmark
ZRA245A03
ZRA245A02
ZRA245A01
ZRA245F03
ZRA245F02
ZRA245F01
ZRA245N803
ZRA245N802
ZRA245N801
3
2
1
3
2
1
3
2
1
E-Line • ZRA24503
E-Line • ZRA24502
E-Line • ZRA24501
ZRA245R03
ZRA245R02
ZRA245R01
ZRA245Y03
ZRA245Y02
ZRA245Y01
3
2
1
3
2
1
E-Line * ZRA245R3
E-Line * ZRA245R2
E-Line * ZRA245R1
E-Line † ZRA24503
E-Line † ZRA24502
E-Line † ZRA24501
SOT23
SOT23
SOT23
SO8
24A
24B
24C
ZRA24503
ZRA24502
ZRA24501
* E-Line 3 pin Reversed
† E-Line 2 pin
• E-Line 3 pin
SO8
SO8
4-231
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