L6711

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11

FBR

Remote sense buffer non-inverting input.

It has to be connected to the positive side of the load to perform a remote sense.

12

FBG

Remote sense buffer inverting input.

It has to be connected to the negative side of the load to perform a remote sense.

13

OUTEN

Output Enable pin, internally 3V pulled-up.

If forced to a voltage lower than 0.3V, the device stops operation with all mosfets OFF: all the

protections are disabled in this condition except pre-OVP.

Cycle this pin to recover latch from protections; filter with 1nF (Typ.) capacitor vs. SGND.

14

CS1-

Channel 1 Current Sense Negative Input pin.

It must be connected through an Rg resistor to the LS mosfet drain (or to the LS-side of the

sense resistor placed in series to the LS mosfet) if LS mosfet sense is performed

(CS_SEL=OPEN). Otherwise (CS_SEL=SGND), it must be connected to the output-side of the

output inductor (or the output-side of the sense resistor used and placed between the channel 1

inductor and the output of the converter) through Rg resistor.

The net connecting the pin to the sense point must be routed as close as possible to the CS1+

net in order to couple in common mode any picked-up noise.

15

CS1+

Channel 1 Current Sense Positive Input pin.

It must be connected through an Rg resistor to the LS mosfet source (or to the GND-side of the

sense resistor placed in series to the LS mosfet) if LS mosfet sense is performed

(CS_SEL=OPEN). Otherwise (CS_SEL=SGND), it must be connected to the phase-side of the

output inductor (or the inductor-side of the sense resistor used and placed between the channel

1 inductor and the output of the converter) through Rg resistor and an R-C network across the

inductor.

The net connecting the pin to the sense point must be routed as close as possible to the CS1-

net in order to couple in common mode any picked-up noise.

16

CS2-

Channel 2 Current Sense Negative Input pin.

It must be connected through an Rg resistor to the LS mosfet drain (or to the LS-side of the

sense resistor placed in series to the LS mosfet) if LS mosfet sense is performed

(CS_SEL=OPEN). Otherwise (CS_SEL=SGND), it must be connected to the output-side of the

output inductor (or the output-side of the sense resistor used and placed between the channel 2

inductor and the output of the converter) through Rg resistor.

The net connecting the pin to the sense point must be routed as close as possible to the CS2+

net in order to couple in common mode any picked-up noise.

17

CS2+

Channel 2 Current Sense Positive Input pin.

It must be connected through an Rg resistor to the LS mosfet source (or to the GND-side of the

sense resistor placed in series to the LS mosfet) if LS mosfet sense is performed

(CS_SEL=OPEN). Otherwise (CS_SEL=SGND), it must be connected to the phase-side of the

output inductor (or the inductor-side of the sense resistor used and placed between the channel

2 inductor and the output of the converter) through Rg resistor and an R-C network across the

inductor.

The net connecting the pin to the sense point must be routed as close as possible to the CS2-

net in order to couple in common mode any picked-up noise.

18

CS3-

Channel 3 Current Sense Negative Input pin.

It must be connected through an Rg resistor to the LS mosfet drain (or to the LS-side of the

sense resistor placed in series to the LS mosfet) if LS mosfet sense is performed

(CS_SEL=OPEN). Otherwise (CS_SEL=SGND), it must be connected to the output-side of the

output inductor (or the output-side of the sense resistor used and placed between the channel 3

inductor and the output of the converter) through Rg resistor.

The net connecting the pin to the sense point must be routed as close as possible to the CS3+

net in order to couple in common mode any picked-up noise.

Table 4. Pin Function (continued)

N°

Name

Description