PRELIMINARY INFORMATION
PRECISION MICROPOWER
SHUNT VOLTAGE REFERENCE
TCN4040
TCN4040
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
GENERAL DESCRIPTION
FEATURES
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.
■ 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 (60µA to 15mA)
■ – 40°C to + 85°C Operating Temperature Range
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
wafersort.Lowdynamicimpedanceandbandgapreference
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).
APPLICATIONS
■ Portable, Battery-Powered Equipment
■ Data Acquisition Systems
■ Instrumentation
■ Process Control
■ Energy Management
■ Product Testing
The TCN4040 also is available in both adjustable and
1.2V versions.
■ Automotive
■ Precision Audio Components
ORDERING INFORMATION
Output
Voltage Tolerance
Part No.
Voltage (V)
Package
Temp. Coefficient Grade
TCN4040C-2.5ENB
TCN4040C-2.5EOA
TCN4040C-2.5EZB
TCN4040D-2.5EOA
TCN4040D-2.5ENB
TCN4040D-2.5EZB
TCN4040E-2.5ENB
TCN4040E-2.5EZB
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
SOT-23B-3*
8-Pin SOIC
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)
8-Pin SOIC
SOT-23B-3*
TO-92
SOT-23B-3*
TO-92
NOTE: *SOT-23B-3 is equivalent to the JEDEC (TO-236)
PIN CONFIGURATION
SOT-23B-3*
(TOP VIEW)
TO-92-3
8-Pin SOIC
1
2 3
NC
1
+
NC
NC
1
8
7
6
5
NC
NC
NC
2
3
NC
–
4
3
2
+
TCN4040EOA
TCN4040ENB
TCN4040EZB
–
+
–
NOTE: *SOT-23B-3 is equivalent to the JEDEC (TO-236)
NC
1
TCN4040-01 6/16/97 TelCom Semiconductor reserves the right to make changes in the circuitry and specifications to its devices.