參數(shù)資料
型號： MCP6547
廠商： Microchip Technology Inc.
英文描述： RIBBON CABLE, 32 PAIR, PER M; Cores, No. of:64; Conductor make-up:7/36AWG; Wire size, AWG:28AWG; Impedance:115R; Pitch:1.27mm; Voltage rating, AC:300V; Colour:10 Colour Repeat; Capacitance:43.6pF/m; Approval Bodies:UL; Cable UL RoHS Compliant: Yes
中文描述： 開漏輸出子微安比較
文件頁數(shù)： 13/28頁
文件大?。?/td> 625K
代理商： MCP6547
2003 Microchip Technology Inc.
DS21714C-page 13
MCP6546/7/8/9
3.4.1
INVERTING CIRCUIT
Figure 3-3 shows an inverting circuit for a single-supply
application using three resistors, besides the pull-up
resistor. The resulting hysteresis diagram is shown in
Figure 3-4.
FIGURE 3-3:
hysteresis.
Inverting circuit with
FIGURE 3-4:
inverting circuit.
Hysteresis diagram for the
In order to determine the trip voltages (V
THL
and V
TLH
)
for the circuit shown in Figure 3-3, R
2
and R
3
can be
simplified to the Thevenin equivalent circuit with
respect to V
DD
, as shown in Figure 3-5.
FIGURE 3-5:
Thevenin Equivalent Circuit.
Where:
Using this simplified circuit, the trip voltage can be
calculated using the following equation:
EQUATION
Figure 2-19 and Figure 2-22 can be used to determine
typical values for V
OL
. This voltage is dependent on the
output current I
OL
as shown in Figure 3-3. This current
can be determined using the equation below:
EQUATION
V
OH
can be calculated using the equation below:
EQUATION
As explained in Section 3.1, “Comparator Inputs”, it is
important to keep the non-inverting input below
V
DD
+0.3V when V
PU
> V
DD
.
3.5
Supply Bypass
With this family of comparators, the power supply pin
(V
DD
for single supply) should have a local bypass
capacitor (i.e., 0.01 μF to 0.1 μF) within 2 mm for good
edge rate performance.
3.6
Capacitive Loads
Reasonable capacitive loads (e.g., logic gates) have
little impact on propagation delay (see Figure 2-27).
The supply current increases with increasing toggle
frequency (Figure 2-30), especially with higher
capacitive loads.
V
IN
V
OUT
MCP654X
V
DD
R
2
R
F
R
3
V
PU
R
PU
V
DD
I
OL
I
RF
I
PU
V
OUT
High-to-Low
Low-to-High
V
OH
V
OL
V
SS
V
SS
V
DD
V
TLH
V
THL
V
IN
V
PU
V
TLH
= trip voltage from low to high
V
THL
= trip voltage from high to low
V
23
V
OUT
MCP654X
+
V
PU
R
23
R
F
-
R
PU
R
23
R
R
R
2
+
R
3
------------------
=
V
23
R
+
R
2
R
3
------------------
V
DD
×
=
V
THL
V
PU
R
RF
R
23
R
PU
+
+
----------------------------------------
V
23
R
+
PU
+
R
F
R
23
R
PU
---------------+
+
=
V
TLH
V
OL
R
+
R
23
RF
----------------------
V
23
R
+
R
23
R
F
---------------------
+
=
V
TLH
= trip voltage from low to high
V
THL
= trip voltage from high to low
I
OL
I
PU
I
RF
+
=
I
OL
V
--------------------------
V
–
R
PU
V
R
23
OL
R
F
+
----------–
+
=
V
OH
V
PU
V
23
–
(
)
R
+
F
+
R
23
R
F
R
PU
-----------------+
×
=
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MCP6547-E/MS 功能描述:校驗器 IC Dual 1.6V Open Drain Comp RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
MCP6547-E/P 功能描述:校驗器 IC Dual 1.6V Open Drain Comp RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
MCP6547-E/SN 功能描述:校驗器 IC Dual 1.6V Open Drain Comp RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
MCP6547-I/MS 功能描述:校驗器 IC Dual 1.6V Open Drain RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
MCP6547-I/P 功能描述:校驗器 IC Dual 1.6V Open Drain RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
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