參數(shù)資料
型號(hào)： LTC6101HVBHS5
廠商： LINEAR TECHNOLOGY CORP
元件分類(lèi)： 模擬信號(hào)調(diào)理
英文描述： High Voltage, High-Side Current Sense Amplifier in SOT-23
中文描述： SPECIALTY ANALOG CIRCUIT, PDSO5
封裝： PLASTIC, MO-193, TSOT-23, 5 PIN
文件頁(yè)數(shù)： 13/20頁(yè)
文件大?。?/td> 330K
代理商： LTC6101HVBHS5
LTC6101/LTC6101HV
13
6101fa
APPLICATIOU
W
U
U
be taken to limit the maximum output current by proper
choice of sense resistor and, if input fault conditions exist,
external clamps.
Output Filtering
The output voltage, V
OUT
, is simply I
OUT
Z
OUT
. This makes
filtering straightforward. Any circuit may be used which
generates the required Z
OUT
to get the desired filter
response. For example, a capacitor in parallel with R
OUT
will give a low pass response. This will reduce unwanted
noise from the output, and may also be useful as a charge
reservoir to keep the output steady while driving a switch-
ing circuit such as a mux or ADC. This output capacitor in
parallel with an output resistor will create a pole in the
output response at:
f
R
C
dB
3
OUT
OUT
–
1
2
=
π
Useful Equations
Input Voltage: V
Voltage Gain:
V
V
Current Gain:
I
I
Transconductance:
I
V
Transimpedance:
V
I
SENSE
OUT
SENSE
OUT
SENSE
OUT
SENSE
OUT
SENSE
=
=
=
=
=
I
R
R
R
R
R
R
R
R
R
SENSE
SENSE
OUT
IN
SENSE
IN
IN
SENSE
OUT
IN
1
Input Common Mode Range
The inputs of the LTC6101 can function from 1.5V below
the positive supply to 0.5V above it. Not only does this
Figure 5. V
+
Powered Separately from
Load Supply (V
BATT
)
Figure 6. LTC6101 Supply Current
Monitored with Load
LTC6101
R
OUT
V
OUT
6101 F05
3
5
4
2
1
R
IN
LOAD
V
+
R
SENSE
V
BATTERY
–
+
LTC6101
R
OUT
V
OUT
6101 F06
3
5
4
2
1
R
IN
LOAD
V
+
R
SENSE
–
+
allow a wide V
SENSE
range, it also allows the input refer-
ence to be separate from the positive supply (Figure 5).
Note that the difference between V
BATT
and V
+
must be no
more than the common mode range listed in the Electrical
Characteristics table. If the maximum V
SENSE
is less than
500mV, the LTC6101 may monitor its own supply current,
as well as that of the load (Figure 6).
相關(guān)PDF資料
PDF描述
LTC6101HVBIS5 High Voltage, High-Side Current Sense Amplifier in SOT-23
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