LTC6103 datasheet(20/28 Pages) AD

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LT6119-1/LT6119-2

611912f

For more information www.linear.com/LT6119-1

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

400mV

IOVER

400mV – IUNDER R1

( )

IUNDER

VMAX –IMAX R1+R2

(

)

IMAX

If:

VMAX <

400mV

IOVER

400mV – IUNDER R1

( )

IUNDER











 IMAX

then use the configuration shown in Figure 13.

Figure 13. Typical Configuration with Alternative ROUT Configuration

OUTA

IOUTA

–

V+

SENSEHI

INC2

INC1

611912 F13

V–

V+

V–

LT6119-1

SENSELO

OUTC2

VLE

VPULLUP

LOAD

VSUPPLY

VSENSE

RSENSE

UNDERCURRENT

FLAG

OVERCURRENT

FLAG

RIN

–

OUTC1

V–

V+

ISENSE =

VSENSE

RSENSE

VOUT

400mV

REFERENCE

CLC

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