參數(shù)資料
型號: LT6109IMS-1#TRPBF
廠商: Linear Technology
文件頁數(shù): 28/28頁
文件大小: 0K
描述: IC AMP CURRENT SENSE 10MSOP
標準包裝: 2,500
類型: 放大器,比較器,參考
應用: 電流感測,電源管理
安裝類型: 表面貼裝
封裝/外殼: 10-TFSOP,10-MSOP(0.118",3.00mm 寬)
供應商設備封裝: 10-MSOP
包裝: 帶卷 (TR)
LT6109-1/LT6109-2
9
610912fa
PIN FUNCTIONS
INC1 (Pin 6): This is the inverting input of comparator 1.
Thesecondinputofthiscomparatorisinternallyconnected
to the 400mV reference.
INC2 (Pin 7): This is the input of comparator 2. For the
LT6109-1 this is the noninverting input of comparator 2.
For the LT6109-2 this is the inverting input of compara-
tor2. The second input of each of these comparators is
internally connected to the 400mV reference.
OUTA (Pin 8): Current Output of the Sense Amplifier. This
pin will source a current that is equal to the sense voltage
divided by the external gain setting resistor, RIN.
V+ (Pin 9): Positive Supply Pin. The V+ pin can be con-
nected directly to either side of the sense resistor, RSENSE.
When V+ is tied to the load end of the sense resistor, the
SENSEHI pin can go up to 0.2V above V+. Supply current
is drawn through this pin.
SENSEHI (Pin 10): Sense Amplifier Input. The internal
sense amplifier will drive SENSEHI to the same potential
as SENSELO. A resistor (typically RIN) tied from supply
to SENSEHI sets the output current, IOUT = VSENSE/RIN,
where VSENSE is the voltage developed across RSENSE.
BLOCK DIAGRAMS
Figure 1. LT6109-1 Block Diagram (Comparators with Opposing Polarity)
100
OUTA
+
+
9
10
1
8
INC2
7
INC1
610912 F01
6
V+
V
V+
3k
V+
3k
SENSEHI
LT6109-1
SENSELO
200nA
RESET
UNDERCURRENT FLAG
OVERCURRENT FLAG
2
EN/RST
3
OUTC2
4
OUTC1
34V
6V
ENABLE AND
RESET TIMING
+
V
V+
5
400mV
REFERENCE
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