www.fairchildsemi.com
FAN4050
Precision Micropower Shunt Voltage Reference
Features
•
•
•
•
•
•
Fixed 2.500V and 3.300V
Tolerances to +0.1% (25°C)
Low output noise
Low temperature coefficient, 50ppm/°C max
Small package: SOT-23
Extended operating current range
Description
The FAN4050 series of precision shunt references are ideal for
space- and cost-sensitive applications. They are available in
two output voltages (2.500V and 3.300V) and with a variety
of output voltage tolerances (0.1%, 0.2%, and 0.5%). They
also have excellent temperature coefficients, 50ppm/°C.
The FAN4050 series is available in the SOT-23 package.
Applications
•
•
•
•
•
Portable equipment
Disk drives
Instrumentation
Audio equipment
Data acquisition systems
Connection Diagram
SOT-23
+
1
3*
–
2
*This pin must be left floating
or connected to pin 2.
Top View
REV. 1.0.1 9/29/00
FAN4050
PRODUCT SPECIFICATION
Absolute Maximum Ratings
1
Ratings are over full operating free-air temperature range unless otherwise noted.
Parameter
Continuous cathode current, IK
Power dissipation
2
Storage Temperature Range
Lead Temperature (Soldering, 10 sec.)
-65
Min.
-30
Max.
+30
280
150
300
Unit
mA
mW
°C
°C
Notes:
1. Functional operation under these conditions is not implied. Permanent damage may occur if the device is subjected to
conditions outside these ratings.
2. It is recommended to connect pin 3 to pin 2 in the SSOT23 package to ensure optimal thermal performance.
Recommended Operating Conditions
Parameter
Continuous cathode current, IK
Operating temperature range in free air, TA
Min.
0.07
-40
Max.
15
85
Unit
mA
°C
Equivalent Schematic
+
+
_
_
2
REV. 1.0.1 9/29/00
PRODUCT SPECIFICATION
FAN4050
Guaranteed Electrical Characteristics, FAN4050-2.5
(T
A
= 25°C unless otherwise specified, in free air)
The
•
denotes specifications which apply over the full operating temperature range.
Parameter
Reverse Breakdown Voltage
Reverse Breakdown Voltage
Tolerance
Minimum Operating Current
I
RMIN
∆V
R
/∆T
Reverse Breakdown Voltage
Temperature Coefficient
∆V
R
(∆IK) Reverse Breakdown Voltage
Change with Operating
Current
Z
KA
Reverse Dynamic
Impedance
e
N
Wideband Noise
∆V
R
*Typical.
Symbol
V
R
TCV
R
Conditions
I
K
= 100µA
I
K
= 100µA
I
K
= 100µA
I
RMIN
≤
I
K
≤1mA
1mA
≤
I
K
≤
15mA
1mA
≤
I
K
≤
25mA
I
K
=1mA, f=120Hz, I
AC
=0.1I
K
•
•
•
•
•
A
2.500
±2.5
±11
65
±50
1.2
8.0
10
0.3
35
120
Limits
B
2.500
±5.0
±14
65
±50
1.2
8.0
10
0.3
35
120
Units
C
2.500
±13
±21
65
±50
1.2
8.0
10
0.3
35
120
V*
mV
mV
µA
ppm/°C
mV
mV
mV*
Ω*
µV
RMS
*
ppm*
I
K
=100µA,
10Hz
≤
f
≤
10kHz
Reverse Breakdown Voltage t=1000hrs, T=25°C, I
K
=100µA
Long-term Stability
Guaranteed Electrical Characteristics, FAN4050-3.3
(T
A
= 25°C unless otherwise specified, in free air)
The
•
denotes specifications which apply over the full operating temperature range.
Parameter
Reverse Breakdown Voltage
Reverse Breakdown Voltage
Tolerance
I
RMIN
Minimum Operating Current
∆V
R
/∆T
Reverse Breakdown Voltage
Temperature Coefficient
∆V
R
(∆IK) Reverse Breakdown Voltage
Change with Operating Current
Z
KA
e
N
∆V
R
*Typical.
Symbol
V
R
TCV
R
Conditions
I
K
= 100µA
I
K
= 100µA
I
K
= 100µA
•
•
•
Limits
Units
A
B
C
3.300 3.300 3.300
V*
±3.3
±6.6
±17
mV
±25
±28
±38
mV
70
70
70
µA
±50
±50
±50 ppm/°C
1.2
10
12
0.5
70
120
1.2
10
12
0.5
70
120
1.2
10
12
0.5
70
120
mV
mV
mV
Ω*
µV
RMS
*
ppm*
Reverse Dynamic Impedance
Wideband Noise
Reverse Breakdown Voltage
Long-term Stability
•
I
RMIN
≤
I
K
≤1mA
1mA
≤
I
K
≤
15mA
•
1mA≤ I
K
≤
25mA
I
K
=1mA, f=120Hz, I
AC
=0.1I
K
I
K
=100µA, 10Hz
≤
f
≤
10kHz
t=1000hrs, T=25°C, I
K
=100µA
REV. 1.0.1 9/29/00
3
FAN4050
PRODUCT SPECIFICATION
Mechanical Dimensions
SOT-23 Package
Inches
Min.
A
A1
B
c
D
E
e
e1
H
L
S
.035
.0004
.012
.003
.110
Max.
.044
.004
.020
.008
.120
Millimeters
Min.
Max.
Notes:
Notes
1. Dimensions are inclusive of plating.
2. Dimensions are exclusive of mold flash & metal burr.
3. Comply to JEDEC TO-236.
4. This drawing is for matrix leadframe only.
Symbol
.047
.055
.037 BSC
.075 BSC
.083
.104
.021 REF
.016 Nom
.89
1.12
.01
.10
.30
.50
.08
.20
2.80
3.04
1.20
1.40
.95 BSC
1.90 BSC
2.10
2.64
.54 REF
.395 Nom
D
e1
e
S
c
L
E
H
B
A1
A
4
REV. 1.0.1 9/29/00
FAN4050
PRODUCT SPECIFICATION
Ordering Information
Example: FAN4050AIS3-2.5
FAN4050
A
I
S3
–
2.5
Grade
0.1% = A
0.2% = B
0.5% = C
Package
SOT23 = S3
Voltage
2.5V = 2.5
3.3V = 3.3
SSOT-23 Package Marking Information
Only 3 fields of marking are possible on an SSOT-23. This table gives the meaning of these fields.
Example: FCA
F
C
A
Voltage
2.5V = C
3.3V = H
Grade
0.1% = A
0.2% = B
0.5% = C
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD 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, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, or (c) whose failure to perform
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to
result in significant injury to the user.
2. A critical component is any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
9/29/00 0.0m 005
Stock#DS30004040
©
2000 Fairchild Semiconductor Corporation
京公网安备 11010802033920号
EEWORLD
