Document
TC04A TC04B TC05A TC05B LOW POWER, BANDGAP VOLTAGE REFERENCES
FEATURES
s s Temperature Coefficient ......................... 50ppm/°C Wide Operating Current Range TC04 ............................................ 15µA to 20mA TC05 ............................................ 20µA to 20mA Dynamic Impedance ............................................ 1Ω Output Tolerance ........................................ Typ. 2% Output Voltage Option TC04 ...........................................................1.25V TC05 ............................................................. 2.5V TO-92 Plastic Package 8-Pin Plastic Narrow Body SOIC Package
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GENERAL DESCRIPTION
The TC04 (1.25V output) and TC05 (2.5V output) bipolar, two-terminal, bandgap voltage references offer precision performance without premium price. These devices do not require thin-film resistors, greatly lowering manufacturing complexity and cost. A 50ppm/°C output temperature coefficient and 15µA to 20mA operating current range make these devices attractive for multimeter, data acquisition converter, and telecommunication voltage references. PIN CONFIGURATIONS
2 3 4 5 6
s s s
s s
APPLICATIONS
s s s s s ADC and DAC Reference Current Source Generation Threshold Detectors Power Supplies Multimeters
TO-92-2 Plastic (BOTTOM VIEW) 8-Pin Plastic SOIC
NC 1 NC 2 NC 3 1 2 –IN 4 8 NC 7 NC 6 +IN 5 NC
NC = NO INTERNAL CONNECTION
TC04ACZM TC04BCZM TC05ACZM TC05BCZM
TC04ACOA TC04BCOA TC05ACOA TC05BCOA
ORDERING INFORMATION
Part No. TC04ACOA TC04ACZM TC04BCOA TC04BCZM TC05ACOA TC05ACZM TC05BCOA TC05BCZM Package 8-Pin SOIC TO-92-2 8-Pin SOIC TO-92-2 8-Pin SOIC TO-92-2 8-Pin SOIC TO-92-2 Temperature Range 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C Voltage 1.25V 1.25V 1.25V 1.25V 2.5V 2.5V 2.5V 2.5V Max. Temperature Coefficient 50ppm/°C 50ppm/°C 100ppm/°C 100ppm/°C 50ppm/°C 50ppm/°C 100ppm/°C 100ppm/°C
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TC04/5-6 8/23/96
TELCOM SEMICONDUCTOR, INC.
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TC04A TC04B TC05A TC05B
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
LOW POWER, BANDGAP VOLTAGE REFERENCES
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: TA = +25°C, unless otherwise specified.
Symbol
VBR
Parameter
Reverse Breakdown Voltage: TC04 TC05 Reverse Breakdown Voltage Change: TC04 TC05
Test Conditions
IR = 100µA
Min
1.24 2.45
Typ
1.26 2.50 10 0.25 10 0.25 0.003 0.003 — —
Max
1.28 2.60 20 1 20 1 0.005 0.01 20 20
Unit
V
DVBR
TC
IR
Temperature Coefficient: TC04A/TC05A TC04B/TC05B Reverse Current: TC04 TC05
15µA < IR < 20mA 20µA < IR < 1mA 20µA < IR < 20mA 25µA < IR < 1mA IR = 100µA
— — — — — — 0.015 0.020
mV
%/°C
mA
3-6
TELCOM SEMICONDUCTOR, INC.
LOW POWER, BANDGAP VOLTAGE REFERENCES
TC04A TC04B TC05A TC05B
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RESPONSE TIME TEST CIRCUIT
36 k Ω OUTPUT INPUT
2
TC04 TC05
3
TYPICAL APPLICATIONS 10V Reference Battery Powered 1.25V Reference Precision Current Source
50 k Ω 3
+15V
+9V
TC04
4
1 µF 6
+
7 6 VOUT = 10V
360 k Ω 1.25V
TC05
2.5V
2 TC911 – 4 180 k Ω
+15V 81 k Ω 2 – 7
TC04
TC911 3 + 4
5
R SET
60 k Ω
0.1 µF
I OUT = 1.25V R SET
6 7
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TELCOM SEMICONDUCTOR, INC.
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TC04A TC04B TC05A TC05B
TYPICAL CHARACTERISTICS
TC04: Output Voltage vs Reverse Current 1000
REVERSE CURRENT (µA)
LOW POWER, BANDGAP VOLTAGE REFERENCES
TC04: Output Voltage Change vs Reverse Current 10 FORWARD VOLTAGE (V) 1.2 TA = +25°C 8 1.0 0.8 0.6 0.4 0.2 0 0.01
OUTPUT VOLTAGE CHANGE (mV)
TC04: Forward Voltage vs Forward Current TA = +25°C
TA = +25°C 100
6
10
4
1
2 0 0.01
0.1
0
0.25 0.5 0.75 1.0 1.25 OUTPUT VOLTAGE (V)
1.5
0.1 1 10 REVERSE CURRENT (mA)
100
0.1 1 10 FORWARD CURRENT (mA)
100
TC04 Response Time 10.0 TA = +25°C 5.0 INPUT
VOLTAGE (V)
TC05: Output Voltage vs Reverse Current 1000
REVERSE CURRENT (µA)
TC05: Output Voltage Change vs Reverse Current 10
OUTPUT VOLTAGE CHANGE (mV)
TA = +25°C
100
8
TA = +25°C
0 1.5 1.0 0.5 0 0 200 400 TIME (µsec) 600 OUTPUT
6
10
4
1
2
0.1 0 0.5 1.0 1.5 2.0 2.5 OUTPUT VOLTAGE (V) TC05 Response Time
TA = +25°C
3.0
0 0.01
0.1 1 10 REVERSE CURRENT (mA)
100
TC05: Forward Voltage vs Forward Current
1.2
10
TA = +25°C
FORWARD VOLTAGE (V) 1.0 0.8 0.6 0.4 0.2 0 0.01
VOLTAGE (V)
5 0 3 2 1 0
INPUT
OUTPUT
0.1 1 10 FORWARD CURRENT (mA)
100
0
200 400 TIME (µsec)
600
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TELCOM SEMICONDUCTOR, INC.
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