PRECISION MICROPOWER
SHUNT VOLTAGE REFERENCE
PRELIMINARY INFORMATION
TCN4040
TCN4040
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
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 60µA. 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 (60µA to 15mA).
The TCN4040 also is available in both adjustable and
1.2V versions.
APPLICATIONS
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Portable, Battery-Powered Equipment
Data Acquisition Systems
Instrumentation
Process Control
Energy Management
Product Testing
Automotive
Precision Audio Components
ORDERING INFORMATION
Part No.
TCN4040C-2.5ENB
TCN4040C-2.5EOA
TCN4040C-2.5EZB
TCN4040D-2.5EOA
TCN4040D-2.5ENB
TCN4040D-2.5EZB
TCN4040E-2.5ENB
TCN4040E-2.5EZB
Output
Voltage (V)
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
Package
SOT-23B-3*
8-Pin SOIC
TO-92
8-Pin SOIC
SOT-23B-3*
TO-92
SOT-23B-3*
TO-92
Voltage Tolerance
Temp. Coefficient Grade
±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
8-Pin SOIC
NC
SOT-23B-3*
(TOP VIEW)
8
+
7
NC
6
NC
5
NC
NC
1
TO-92-3
1 2 3
1
NC 2
NC
–
3
4
TCN4040EOA
2
+
3
–
TCN4040ENB
TCN4040EZB
NOTE:
*SOT-23B-3 is equivalent to the JEDEC (TO-236)
TCN4040-01 6/16/97
NC +
–
1
TelCom Semiconductor reserves the right to make changes in the circuitry and specifications to its devices.
TELCOM [ TELCOM SEMICONDUCTOR, INC ]
