Document Outline
- Return to Contents
- Features
- Applications
- Ordering Information
- General Description
- Pin Configurations
- Absolute Maximum Ratings*
- Electrical Characteristics
- Response Time Test Circuit
- Typical Applications
- Typical Characteristics
3-5
TELCOM SEMICONDUCTOR, INC.
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6
5
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LOW POWER, BANDGAP VOLTAGE REFERENCES
GENERAL DESCRIPTION
The TC04 (1.25V output) and TC05 (2.5V output) bipo-
lar, two-terminal, bandgap voltage references offer preci-
sion performance without premium price. These devices
do not require thin-film resistors, greatly lowering manufac-
turing complexity and cost.
A 50ppm/
C output temperature coefficient and 15
A
to 20mA operating current range make these devices at-
tractive for multimeter, data acquisition converter, and tele-
communication voltage references.
FEATURES
s
Temperature Coefficient ......................... 50ppm/
C
s
Wide Operating Current Range
TC04 ............................................ 15
A to 20mA
TC05 ............................................ 20
A to 20mA
s
Dynamic Impedance ............................................ 1
s
Output Tolerance ........................................ Typ. 2%
s
Output Voltage Option
TC04 ........................................................... 1.25V
TC05 ............................................................. 2.5V
s
TO-92 Plastic Package
s
8-Pin Plastic Narrow Body SOIC Package
APPLICATIONS
s
ADC and DAC Reference
s
Current Source Generation
s
Threshold Detectors
s
Power Supplies
s
Multimeters
TC04/5-6 8/23/96
TC04A
TC04B
TC05A
TC05B
ORDERING INFORMATION
Temperature
Max. Temperature
Part No.
Package
Range
Voltage
Coefficient
TC04ACOA
8-Pin SOIC
0
C to +70
C
1.25V
50ppm/
C
TC04ACZM
TO-92-2
0
C to +70
C
1.25V
50ppm/
C
TC04BCOA
8-Pin SOIC
0
C to +70
C
1.25V
100ppm/
C
TC04BCZM
TO-92-2
0
C to +70
C
1.25V
100ppm/
C
TC05ACOA
8-Pin SOIC
0
C to +70
C
2.5V
50ppm/
C
TC05ACZM
TO-92-2
0
C to +70
C
2.5V
50ppm/
C
TC05BCOA
8-Pin SOIC
0
C to +70
C
2.5V
100ppm/
C
TC05BCZM
TO-92-2
0
C to +70
C
2.5V
100ppm/
C
PIN CONFIGURATIONS
NC = NO INTERNAL CONNECTION
1
2
3
4
8
7
6
5
NC
NC
NC
+IN
NC
NC
NC
IN
1
2
TO-92-2 Plastic
(BOTTOM VIEW)
TC04ACZM
TC04BCZM
TC05ACZM
TC05BCZM
8-Pin Plastic SOIC
TC04ACOA
TC04BCOA
TC05ACOA
TC05BCOA
3-6
TELCOM SEMICONDUCTOR, INC.
ABSOLUTE MAXIMUM RATINGS*
Forward Current .................................................... +10mA
Reverse Current .................................................... +30mA
Storage Temperature Range ................ 65
C to +150
C
Operating Temperature Range
TO-92 Package ..................................... 0
C to +70
C
Surface Mount Package ........................ 0
C to +70
C
Lead Temperature (Soldering, 10 sec)
TO-92 Package .............................................. +300
C
Surface Mount Package ................................. +300
C
Power Dissipation ............................. Limited by Forward/
Reverse Current
*Functional operation above the absolute maximum stress ratings is not
implied.
ELECTRICAL CHARACTERISTICS:
T
A
= +25
C, unless otherwise specified.
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
V
BR
Reverse Breakdown Voltage:
I
R
= 100
A
TC04
1.24
1.26
1.28
V
TC05
2.45
2.50
2.60
DV
BR
Reverse Breakdown Voltage Change:
TC04
15
A < I
R
< 20mA
--
10
20
mV
20
A < I
R
< 1mA
--
0.25
1
TC05
20
A < I
R
< 20mA
--
10
20
25
A < I
R
< 1mA
--
0.25
1
TC
Temperature Coefficient:
I
R
= 100
A
TC04A/TC05A
--
0.003
0.005
%/
C
TC04B/TC05B
--
0.003
0.01
I
R
Reverse Current:
TC04
0.015
--
20
mA
TC05
0.020
--
20
LOW POWER, BANDGAP
VOLTAGE REFERENCES
TC04A
TC04B
TC05A
TC05B
3-7
TELCOM SEMICONDUCTOR, INC.
7
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3
1
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RESPONSE TIME TEST CIRCUIT
TYPICAL APPLICATIONS
+15V
180 k
0.1 F
2.5V
TC05
60 k
50 k
3
2
7
6
4
V
OUT
= 10V
+
TC911
+15V
TC04
1 F
R
SET
81 k
2
3
7
6
4
I
OUT
= 1.25V
R
SET
+
TC911
+9V
TC04
1.25V
360 k
Battery Powered 1.25V Reference
Precision Current Source
10V Reference
TC04
TC05
OUTPUT
INPUT
36 k
LOW POWER, BANDGAP
VOLTAGE REFERENCES
TC04A
TC04B
TC05A
TC05B
3-8
TELCOM SEMICONDUCTOR, INC.
TYPICAL CHARACTERISTICS
1000
100
1
0.1
0
0.25
0.5
0.75
1.0
1.25
1.5
OUTPUT VOLTAGE (V)
TA = +25
C
10
TC04: Output Voltage vs
Reverse Current
REVERSE CURRENT (
A)
10
8
6
4
2
0
0.01
0.1
1
10
100
OUTPUT VOLTAGE CHANGE (mV)
REVERSE CURRENT (mA)
TC04: Output Voltage Change
vs Reverse Current
TA = +25
C
1.2
1.0
0.8
0.6
0.4
0.2
0
0.01
0.1
1
10
100
FORWARD CURRENT (mA)
FORWARD VOLTAGE (V)
TC04: Forward Voltage vs
Forward Current
TA = +25
C
OUTPUT
INPUT
5.0
0
1.5
1.0
0.5
0
0
200
400
600
TIME (
sec)
TC04
Response Time
TA = +25
C
VOLTAGE (V)
10.0
1000
100
1
0.1
0
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT VOLTAGE (V)
10
TC05: Output Voltage vs
Reverse Current
REVERSE CURRENT (
A)
10
8
6
4
2
0
0.01
0.1
1
10
100
OUTPUT VOLTAGE CHANGE (mV)
REVERSE CURRENT (mA)
TC05: Output Voltage Change
vs Reverse Current
TA = +25
C
1.2
1.0
0.8
0.6
0.4
0.2
0
0.01
0.1
1
10
100
FORWARD CURRENT (mA)
FORWARD VOLTAGE (V)
TC05: Forward Voltage vs
Forward Current
TA = +25
C
OUTPUT
INPUT
5
0
3
2
1
0
0
200
400
600
TIME (
sec)
TC05
Response Time
10
TA = +25
C
VOLTAGE (V)
TA = +25
C
TC04A
TC04B
TC05A
TC05B
LOW POWER, BANDGAP
VOLTAGE REFERENCES
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