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Microchip Technology - Single Comparator in SOT Packages

Numéro de référence TC1037
Description Single Comparator in SOT Packages
Fabricant Microchip Technology 
Logo Microchip Technology 





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TC1037 fiche technique
TC1037/TC1038/TC1039
Linear Building Block – Single Comparator in SOT Packages
Features
• Tiny SOT-23A Packages
• Optimized for Single Supply Operation
• Ultra Low Input Bias Current: Less than 100pA
• Low Quiescent Current: 4µA (TC1037),
Shutdown Mode: 4µA, 0.05µA (TC1038),
6µA (TC1039)
• Shutdown Mode (TC1038)
• 2.0% Accurate Independent Voltage Reference
(TC1039)
• Rail-to-Rail Inputs and Outputs
• Operation Down to VDD = 1.8V
Applications
• Power Management Circuits
• Battery Operated Equipment
• Consumer Products
Device Selection Table
Part Number
TC1037CECT
TC1038CECH
TC1039CECH
Package
5-Pin SOT-23A
6-Pin SOT-23A
6-Pin SOT-23A
Temperature
Range
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Package Types
5-Pin SOT-23A
VDD
IN-
54
6-Pin SOT-23A
VDD SHDN IN-
6 54
TC1037ECT
TC1038ECH
1 23
1 23
OUTPUT VSS IN+
OUTPUT VSS IN+
6-Pin SOT-23A
VDD REF IN-
6 54
TC1039ECH
1 23
OUTPUT VSS IN+
NOTE: 5-Pin SOT-23A is equivalent to the EIAJ SC-74A.
6-Pin SOT-23A is equivalent to the EIAJ SC-74.
General Description
The TC1037/TC1038/TC1039 are single, low-power
comparators designed for low-power applications.
These comparators are specifically designed for
operation from a single supply. However, operation
from dual supplies also is possible, and power supply
current is independent of the magnitude of the power
supply voltage. The TC1037/TC1038/TC1039 operate
from two 1.5V alkaline cells down to VDD = 1.8V. Active
supply current is 4µA for the TC1037/TC1038 and 6µA
for the TC1039. Input and output swing of these
devices is rail-to-rail.
An active low shutdown input, SHDN, is available on
the TC1038 and disables the comparator, placing its
output in a high-impedance state. The TC1038 draws
only 0.05µA (typical) when the shutdown mode is
active.
An internally biased 1.20V bandgap reference is
included in the TC1039. The reference is accurate to
2.0 percent tolerance. This reference is independent of
the comparator in the TC1039.
Packaged in a 5-Pin SOT-23A (TC1037) or 6-Pin
SOT-23A (TC1038/TC1039), these single comparators
are ideal for applications requiring high integration,
small size and low power.
Functional Block Diagram
OUTPUT
VSS
IN+
1
2
3
5 VDD
TC1037
4 IN-
OUTPUT
VSS
IN+
1
2
3
TC1038
6 VDD
5 SHDN
4
IN-
OUTPUT
VSS
IN+
1
2
3
Voltage
6 VDD
Reference
5 REF
4
IN-
TC1039
© 2002 Microchip Technology Inc.
DS21344B-page 1

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