
TCN4040
PRELIMINARY INFORMATION
TCN4040-01 6/16/97
PRECISION MICROPOWER
SHUNT VOLTAGE REFERENCE
FEATURES
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Small Packages ....... SOT-23B-3, TO-92, and SO-8
Output Capacitor Not Required
Handles Capacitive Loads
Fixed Reverse Breakdown Voltage of 2.5V
Low Output Noise
Wide Operating Current Range (60
μ
A to 15mA)
– 40
°
C to + 85
°
C Operating Temperature Range
APPLICATIONS
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Portable, Battery-Powered Equipment
Data Acquisition Systems
Instrumentation
Process Control
Energy Management
Product Testing
Automotive
Precision Audio Components
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
TelCom Semiconductor reserves the right to make changes in the circuitry and specifications to its devices.
GENERAL DESCRIPTION
For applications in tight quarters, the TCN4040 preci-
sion voltage reference is available in a space-saving
3mm x 1.3mm SOT-23B-3 surface mount package. The
TCN4040 eliminates the need for an external stabilizing
capacitor while maintaining stability with any capacitive
load. The minimum operating current is 60
μ
A. The maxi-
mum operating current is 15mA.
To ensure that the prime parts have an accuracy of
better than
±
0.5% (C grade) at 25
°
C, the TCN4040 uses
fuse and zener-zap reverse breakdown voltage trim during
wafer sort. Low dynamic impedance and bandgap reference
temperature drift curvature correction maintain stable re-
verse breakdown voltage accuracy over a wide range of
operating temperatures (– 40
°
C to + 85
°
C) and currents
from (60
μ
A to 15mA).
The TCN4040 also is available in both adjustable and
1.2V versions.
ORDERING INFORMATION
Output
Voltage (V)
Voltage Tolerance
Temp. Coefficient Grade
Part No.
Package
TCN4040C-2.5ENB
TCN4040C-2.5EOA
TCN4040C-2.5EZB
TCN4040D-2.5EOA
TCN4040D-2.5ENB
TCN4040D-2.5EZB
TCN4040E-2.5ENB
TCN4040E-2.5EZB
NOTE:
*SOT-23B-3 is equivalent to the JEDEC (TO-236)
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
SOT-23B-3*
8-Pin SOIC
TO-92
8-Pin SOIC
SOT-23B-3*
TO-92
SOT-23B-3*
TO-92
±
0.5%, 100ppm/
°
C Max (C Grade)
±
0.5%, 100ppm/
°
C Max (C Grade)
±
0.5%, 100ppm/
°
C Max (C Grade)
±
1.0%, 150ppm/
°
C Max (D Grade)
±
1.0%, 150ppm/
°
C Max (D Grade)
±
1.0%, 150ppm/
°
C Max (D Grade)
±
2.0%, 150ppm/
°
C Max (E Grade)
±
2.0%, 150ppm/
°
C Max (E Grade)
NOTE:
*SOT-23B-3 is equivalent to the JEDEC (TO-236)
PIN CONFIGURATION
2
3
1
NC
NC
+
+
–
–
TCN4040ENB
TCN4040EZB
1
2
3
1
2
3
4
8
7
6
5
TCN4040EOA
NC
NC
NC
NC
NC
NC
–
+
SOT-23B-3*
(TOP VIEW)
TO-92-3
8-Pin SOIC