PRELIMINARY INFORMATION EVALUATION KIT AVAILABLE TC1028 LINEAR BUILDING BLOCK – QUAD LOW POWER COMPARATOR AND VOLTAGE REFERENCE WITH SHUTDOWN 2 FEATURES 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. ■ ■ ■ ■ 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 8-Pin MSOP Part No. Package Temp. Range – 40°C to +85°C 1 8 OUTB TC1028COA 8-Pin SOIC 2 7 VDD TC1028CPA 8-Pin Plastic DIP 3 TC1028CUA 6 REF TC1028CUA 8-Pin MSOP INB– 4 SHDN 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 TC1028EUA 5 8-Pin Plastic DIP OUTA 1 8 OUTB VSS 2 7 VDD INA+ 3 6 REF INB– 4 5 SHDN TC1028CPA TC1028EPA OUTA 1 8 OUTB VSS 2 7 VDD 6 REF 5 SHDN INA 3 INB– 4 TC1028COA TC1028EOA OUTA OUTB + A – –B+ INA+ 7 VDD REF Voltage Reference INB– SHDN 8 V– TC1028-01 11/15/96 TELCOM SEMICONDUCTOR, INC. 6 FUNCTIONAL BLOCK DIAGRAM VSS 8-Pin SOIC 5 0°C to +70°C TC1028 + 4 0°C to +70°C INA + 3 ORDERING INFORMATION PIN CONFIGURATIONS OUTA VSS 1 3-315