參數(shù)資料
型號: LT6109IMS-1#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 模擬信號調(diào)理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO10
封裝: LEAD FREE, PLASTIC, MSOP-10
文件頁數(shù): 9/28頁
文件大?。?/td> 370K
代理商: LT6109IMS-1#PBF
LT6109-1/LT6109-2
17
610912f
where IOVER and IUNDER are the over and under currents
through the sense resistor which cause the comparators
to trip. IMAX is the maximum current through the sense
resistor.
Depending on the desired maximum amplifier output volt-
age (VMAX) the three output resistors, R1, R2 and R3, can
be configured in two ways. If:
VMAX >
400mV
IOVER
+
400mV –IUNDER R1
( )
IUNDER
IMAX
then use the configuration shown in Figure 3. The desired
trip points and full-scale analog output voltage for the
circuit in Figure 3 can then be achieved using the follow-
ing equations:
APPLICATIONS INFORMATION
R1
=
400mV
IOVER
R2
=
400mV – IUNDER R1
( )
IUNDER
R3
=
VMAX –IMAX R1+ R2
(
)
IMAX
If:
VMAX <
400mV
IOVER
+
400mV –IUNDER R1
( )
IUNDER
IMAX
then use the configuration shown in Figure 11.
Figure 11. Typical Configuration with Alternative ROUT Configuration
OUTA
IOUTA
+
+
V+
C1
SENSEHI
INC2
INC1
R1
610912 F11
V
V+
V
LT6109-1
SENSELO
EN/RST
OUTC2
VRESET
RC
VPULLUP
LOAD
VSUPPLY
VSENSE
RSENSE
UNDERCURRENT
FLAG
OVERCURRENT
FLAG
RIN
+
OUTC1
4
3
2
1
5
+
V
V+
ISENSE =
VSENSE
RSENSE
RC
R2
6
7
8
9
10
R3
V+
V
CL
VOUT
400mV
REFERENCE
CLC
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