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LM193FKB bảng dữ liệu(PDF) 7 Page - Texas Instruments

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Giải thích chi tiết về linh kiện  Dual Differential Comparators
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LM193FKB bảng dữ liệu(HTML) 7 Page - Texas Instruments

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80-µA
Current Regulator
80 µA
60 µA
10 µA
VCC
10 µA
OUT
GND
IN+
IN−
Epi-FET
Diodes
Resistors
Transistors
COMPONENT COUNT
1
2
2
30
Copyright © 2017, Texas Instruments Incorporated
7
LM193-MIL
www.ti.com
SLIS183 – JUNE 2017
Product Folder Links: LM193-MIL
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
7 Detailed Description
7.1 Overview
The dual comparator has the ability to operate up to absolute maximum of 36 V on the supply pin. This device
has proven ubiquity and versatility across a wide range of applications. This is due to very wide supply voltages
range (2 V to 36 V), low Iq and fast response of the device.
The open-drain output allows the user to configure the output's logic high voltage (VOH) and can be used to
enable the comparator to be used in AND functionality.
7.2 Functional Block Diagram
Figure 6. Schematic (Each Comparator)
7.3 Feature Description
The comparator consists of a PNP darlington pair input, allowing the device to operate with very high gain and
fast response with minimal input bias current. The input Darlington pair creates a limit on the input common
mode voltage capability, allowing the comparator to accurately function from ground to VCC– 1.5 V input. Allow
for VCC– 2 V at cold temperature.
The output consists of an open drain NPN (pull-down or low side) transistor. The output NPN will sink current
when the negative input voltage is higher than the positive input voltage and the offset voltage. The VOL is
resistive and will scale with the output current. See Figure 3 for VOL values with respect to the output current.
7.4 Device Functional Modes
7.4.1 Voltage Comparison
The device operates solely as a voltage comparator, comparing the differential voltage between the positive and
negative pins and outputting a logic low or high impedance (logic high with pullup) based on the input differential
polarity.


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