TC1041 Datasheet, PDF (1/14 Pages) Microchip Technology – Linear Building Block . Dual Low Power Comparator and Voltage Reference with Programmable Hysteresis

TC1041
Linear Building Block – Dual Low Power Comparator and
Voltage Reference with Programmable Hysteresis
Features
• Combines Two Comparators and a Voltage
Reference in a Single Package
• Optimized for Single Supply Operation
• Available in Two Small Packages: 8-Pin SOIC or
8-Pin MSOP
• Ultra Low Input Bias Current: Less than 100pA
• Low Quiescent Current, Operating: 10µA (Typ.)
• Rail-to-Rail Inputs and Outputs
• Operates Down to V_DD = 1.8V
• Programmable Hysteresis
Applications
• Power Supply Circuits
• Battery Operated Equipment
• Consumer Products
• Replacements for Discrete Components
Device Selection Table
Part Number
Package
TC1041CEOA
TC1041CEUA
8-Pin SOIC
8-Pin MSOP
Temperature
Range
-40°C to +85°C
-40°C to +85°C
Package Types
8-Pin SOIC
8-Pin MSOP
OUTA 1
V_{SS 2}
INA+ 3
INB- 4
8 OUTB
7 V_DD
TC1041CEOA
TC1041CEUA ^{6 REF}
5 HYST
General Description
The TC1041 is a mixed-function device combining two
comparators and a voltage reference in a single 8-pin
package. The inverting inputs of both comparators are
internally connected to the reference.
This increased integration allows the user to replace
two packages, which saves space, lowers supply
current and increases system performance. The
TC1041 operates from two 1.5V alkaline cells down to
V_DD = 1.8V. It requires only 10µA typical supply current
which significantly extends battery life. The TC1041
provides a simple method for adding user-adjustable
hysteresis without feedback or complex external
circuitry. Hysteresis is adjusted with a simple resistor
divider on the HYST pin.
Rail-to-rail inputs and outputs allow operation from low
supply voltages with large input and output signal
swings.
Packaged in an 8-Pin SOIC or 8-Pin MSOP, the
TC1041 is ideal for applications requiring low power
and small packages.
Functional Block Diagram
OUTA ¹
TC1041
8
OUTB
V_SS ²
INA+ ³
INB+ ⁴
A
B
–
–
Voltage
Reference
V_SS
7 _VDD
6
REF
5
HYST
© 2002 Microchip Technology Inc.
DS21346B-page 1