LTC6103

6

6103f

BLOCK DIAGRAM

PIN FUNCTIONS

OUTA (Pin 1): Current Output of Amplifier A. OUTA will

source a current that is proportional to the sense voltage

of amplifier A into an external resistor.

OUTB (Pin 2): Current Output of Amplifier B. OUTB will

source a current that is proportional to the sense voltage

of amplifier B into an external resistor.

NC (Pin 3): No Connect.

Operation). Common to both amplifiers.

Amplifier B. Must be tied to the system load end of the

sense resistor. It also works as the positive supply for

amplifier B. Supply current of amplifier B is drawn through

this pin. The LTC6103 supply current is monitored along

with the system load current.

–INB (Pin 6): The Negative Input of the Internal Sense

Amplifier B. The internal sense amplifier will drive –INB

(Figure 1).

–INA (Pin 7): The Negative Input of the Internal Sense

Amplifier A. The internal sense amplifier will drive –INA

(Figure 1).

Amplifier A. Must be tied to the system load end of the

sense resistor. It also works as the positive supply for

amplifier A. Supply current of amplifier A is drawn through

this pin. The LTC6103 supply current is monitored along

with the system load current.

Figure 1. LTC6103 Block Diagram and Typical Connection

+

–

+

–

8

7

6

5

2

4

1

+INA

OUTA

OUTB

6103 F01

–INA

–INB

5k 5k

5k 5k

+–

+

–

+

+

+INB

10V

10V

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