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TLV7032DDFR 数据表(PDF) 21 Page - Texas Instruments

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部件名 TLV7032DDFR
功能描述  TLV703x and TLV704x Small-Size, Nanopower, Low-Voltage Comparators
PDF  51 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TLV7032DDFR 数据表(HTML) 21 Page - Texas Instruments

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background image
+V
+5 V
CC
R
LOAD
V
O
R2
1 MW
V
REF
+2.5 V
V
A
5 V
0 V
1.675 V
3.325 V
V
IN2
V
IN
V
O High
+V
CC
V = V
A
REF
R2
R1
330 kW
V
IN
R1
V
O Low
V
IN1
V = V
A
REF
R1
R2
V
O
V
IN1
V
IN2
Copyright © 2016, Texas Instruments Incorporated
DV = V
IN
CC
´
R1
R2
V
=
IN2
V
REF
CC
(R1 + R2)
V
R1
-
´
R2
V
= R1
IN1
´
VREF
R2
+ VREF
21
TLV7031, TLV7032, TLV7041, TLV7042, TLV7034, TLV7044
www.ti.com
SLVSE13F – SEPTEMBER 2017 – REVISED JUNE 2020
Product Folder Links: TLV7031 TLV7032 TLV7041 TLV7042 TLV7034 TLV7044
Submit Documentation Feedback
Copyright © 2017–2020, Texas Instruments Incorporated
Application Information (continued)
8.1.2 Noninverting Comparator With Hysteresis for TLV703x
A noninverting comparator with hysteresis requires a two-resistor network, as shown in Figure 35, and a voltage
reference (VREF) at the inverting input. When VIN is low, the output is also low. For the output to switch from low
to high, VIN must rise to VIN1. Use Equation 4 to calculate VIN1.
(4)
When VIN is high, the output is also high. For the comparator to switch back to a low state, VIN must drop to VIN2
such that VA is equal to VREF. Use Equation 5 to calculate VIN2.
(5)
The hysteresis of this circuit is the difference between VIN1 and VIN2, as shown in Equation 6.
(6)
Figure 35. TLV703x in a Noninverting Configuration With Hysteresis



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