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TELCOM SEMICONDUCTOR, INC.
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PRELIMINARY INFORMATION
TC1027
GENERAL DESCRIPTION
The TC1027 is a mixed-function device combining four
general purpose, complimentary output comparators and a
voltage reference in a single 16-pin package.
This increased integration allows the user to replace
two packages, saving space, lowering supply current, and
increasing system performance.
The TC1027 is designed specifically for operation from
a single supply; however, operation from dual supplies is
also possible. The power supply current drain is indepen-
dent of the magnitude of the power supply voltage. The
TC1027 is optimized for low supply voltage and very low
supply current operation (15
A max) making it ideal for
battery operated applications.
Packaged in a 16-pin QSOP, SOIC (0.150 wide) or 16-
pin DIP, the TC1027 is ideal for applications requiring high
integration, small size and low power.
LINEAR BUILDING BLOCK QUAD LOW POWER COMPARATOR
AND VOLTAGE REFERENCE
FEATURES
s
Combines Four Comparators and a Voltage
Reference into a Single Package
s
Optimized for Single Supply Operation
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Small Package ................. 16-Pin SOIC (Narrow) or
16-Pin Plastic DIP (Narrow)
s
Ultra Low Input Bias Current ...... Less than 100pA
s
Low Quiescent Current ........................... 15
A max
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Rail-to-Rail Inputs and Outputs
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Operates Down to V
DD
= 1.8V min.
APPLICATIONS
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Power Supply Circuits
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Embedded Systems
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Instrumentation
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Portable Equipment
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Consumer Products
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Replacements for Discrete Components
ORDERING INFORMATION
Part No.
Package
Temp. Range
TC1027COR
16-Pin SOIC (Narrow)
0
C to +70
C
TC1027CPE
16-Pin Plastic DIP
0
C to +70
C
TC1027CQR
16-Pin QSOP
0
C to +70
C
TC1027EOR
16-Pin SOIC (Narrow)
40
C to +85
C
TC1027EPE
16-Pin Plastic DIP
40
C to +85
C
TC1027EQR
16-Pin QSOP
40
C to +85
C
TC43EV
Evaluation Kit for Linear
Building Block Family
TC1027-01 11/15/96
PIN CONFIGURATIONS
FUNCTIONAL BLOCK DIAGRAM
OUTC
OUTD
GND
V
SS
IND
IND
+
INC
INC
+
OUTB
OUTA
V
DD
INA
INA
+
INB
INB
+
REF
+
+
+
D
A
+
+
TC1027
C
B
Voltage
Reference
EVALUATION
KIT
AVAILABLE
TC1027CPE
TC1027EPE
16-Pin Plastic DIP (Narrow)
16-Pin QSOP
16-Pin SOIC (Narrow)
1
2
3
4
16
15
14
OUTB
OUTC
OUTD
GND
OUTA
V
DD
V
SS
INA
INA
+
IND
IND
+
INC
INC
+
OUTC
OUTD
GND
V
SS
IND
IND
+
INC
INC
+
INB
INB
+
REF
+
OUTB
OUTA
V
DD
INA
INA
+
INB
INB
+
REF
+
5
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7
8
13
12
11
10
9
TC1027COR
TC1027EOR
1
2
3
4
16
15
14
5
6
7
8
13
12
11
10
9
OUTC
OUTD
GND
V
SS
IND
IND+
INC
INC+
OUTB
OUTA
V
DD
INA
INA+
INB
INB+
REF+
TC1027-
CQR
TC1027-
EQR
1
2
3
4
16
15
14
5
6
7
8
13
12
11
10
9
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