PRELIMINARY INFORMATION
EVALUATION
KIT
AVAILABLE
1
TC1028
LINEAR BUILDING BLOCK 鈥?QUAD LOW POWER COMPARATOR
AND VOLTAGE REFERENCE WITH SHUTDOWN
FEATURES
s
s
s
s
s
Combines Two Comparators and a Voltage
Reference into a Single Package
Optimized for Single Supply Operation
Small Package ...................................... 8-Pin MSOP
(Occupies Half the Space of an 8-Pin SOIC)
Ultra Low Input Bias Current ...... Less than 100pA
Low Quiescent Current ........................... 10
碌
A Max
2
3
4
5
6
7
GENERAL DESCRIPTION
The TC1028 is a mixed-function device combining two
general purpose, complimentary output comparators and a
voltage reference in a single 8-pin package.
This increased integration allows the user to replace
two packages, saving space, lowering supply current, and
increasing system performance. The TC1028 operates
down to V
DD
= 1.8V and requires only 10碌A of supply
current. A Shutdown input (SHDN) disables the compara-
tors, placing their outputs in a high-impedance state. The
reference stays active in Shutdown Mode. Standby power
consumption is typically 1碌A.
The TC1028 is designed specifically for operation from
a single supply, however, operation from dual supplies is
also possible, and the power supply current drain is inde-
pendent of the magnitude of the power supply voltage.
Packaged in an 8-pin MSOP or 8-pin DIP, the TC1028
is ideal for applications requiring low power level detection.
APPLICATIONS
s
s
s
s
s
s
Power Supply Circuits
Embedded Systems
Instrumentation
Portable Equipment
Consumer Products
Replacements for Discrete Components
PIN CONFIGURATIONS
ORDERING INFORMATION
Part No.
8
7
8-Pin MSOP
OUT
A
V
SS
IN
A+
IN
B鈥?/div>
1
2
4
Package
8-Pin SOIC
8-Pin Plastic DIP
8-Pin MSOP
8-Pin SOIC
8-Pin Plastic DIP
8-Pin MSOP
Temp. Range
鈥?40擄C to +85擄C
0擄C to +70擄C
0擄C to +70擄C
鈥?40擄C to +85擄C
鈥?40擄C to +85擄C
鈥?40擄C to +85擄C
OUT
B
V
DD
REF
SHDN
TC1028COA
TC1028CPA
TC1028CUA
TC1028EOA
TC1028EPA
TC1028EUA
3
TC1028CUA
6
TC1028EUA
5
8-Pin Plastic DIP
OUT
A
V
SS
IN
A+
IN
B鈥?/div>
1
2
3
4
8
7
OUT
B
V
DD
REF
SHDN
TC43EV
Evaluation Kit for Linear
Building Block Family
FUNCTIONAL BLOCK DIAGRAM
TC1028CPA
TC1028EPA
6
5
OUT
A
OUT
B
TC1028
8-Pin SOIC
OUT
A
V
SS
IN
A+
IN
B鈥?/div>
1
2
3
4
TC1028COA
TC1028EOA
8
7
6
5
OUT
B
V
DD
REF
SHDN
V
SS
+
A
鈥?/div>
鈥?/div>
B
+
V
DD
IN
A+
Voltage
Reference
IN
B鈥?/div>
REF
SHDN
V
鈥?/div>
8
3-315
TC1028-01 11/15/96
TELCOM SEMICONDUCTOR, INC.
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