TelCom Semiconductor Inc TC1028EUA, TC1028EPA, TC1028CUA, TC1028EOA, TC1028CPA Datasheet

PRELIMINARY INFORMATION

EVALUATION

KIT

AVAILABLE

TC1028

LINEAR BUILDING BLOCK – QUAD LOW POWER COMP ARATOR
AND VOL T AGE REFERENCE WITH SHUTDOWN

FEATURES

■ 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 ........................... 10µA Max

APPLICATIONS

■ Power Supply Circuits

■ Embedded Systems

■ Instrumentation

■ Portable Equipment

■ Consumer Products

■ Replacements for Discrete Components

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 VDD = 1.8V and requires only 10µA of supply
current. A Shutdown input (SHDN) disables the compara­tors, placing their outputs in a high-impedance state. The
reference stays active in Shutdown Mode. Standby power
consumption is typically 1µA.

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 inde­pendent 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.

1

2

3

4

PIN CONFIGURATIONS

8-Pin MSOP

OUT

IN

V

IN

SS

1

A

2

+

TC1028CUA

3

A

–

B

TC1028EUA

4

8-Pin Plastic DIP

OUT

IN

IN

1

A

V

2

SS

+

A

–

B

3

4

TC1028CPA
TC1028EPA

8-Pin SOIC

OUT

IN

IN

1

A

V

2

SS

+

A

–

B

3
4

TC1028COA
TC1028EOA

TELCOM SEMICONDUCTOR, INC.

ORDERING INFORMATION

Part No. Package Temp. Range

OUT

8
7
6
5

V

DD

REF
SHDN

8

7

6

5

8

7
6
5

B

OUT

V

DD

REF

SHDN

OUT

V

DD

REF

SHDN

B

B

TC1028COA 8-Pin SOIC – 40°C to +85°C
TC1028CPA 8-Pin Plastic DIP 0°C to +70°C
TC1028CUA 8-Pin MSOP 0°C to +70°C
TC1028EOA 8-Pin SOIC – 40°C to +85°C
TC1028EPA 8-Pin Plastic DIP – 40°C to +85°C
TC1028EUA 8-Pin MSOP – 40°C to +85°C

TC43EV Evaluation Kit for Linear

Building Block Family

FUNCTIONAL BLOCK DIAGRAM

OUT

V

IN

IN

SS

A

TC1028

A

+

A

Voltage

Reference

–

B

B

+–+–

–

V

OUT

B

V

DD

REF

SHDN

TC1028-01 11/15/96

3-315

5

6

7

8