Pin connections and functions

L6725 - L6725A

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Pin connections and functions

Figure 2.

Pins connection (top view)

Table 4.

Pin functions

Pin n°

Name

Function

1COMP

This pin is connected to the error amplifier output and is used to compensate the

voltage control feedback loop.

2

SS/INH

The soft-start time is programmed connecting an external capacitor from this pin to

GND. The internal current generator forces a current of 10

µA through the capacitor.

When the voltage at this pin is lower than 0.5V the device is disabled.

3

EAREF

By setting the voltage at this pin is possible to select the internal/external reference

and the switching frequency:

4OCL

A resistor connected from this pin to ground sets the valley- current-limit. The valley

current is sensed through the low-side MOSFET(s). The internal current generator

sources a current of 100

µA (I

1

2

3

4

5

6

11

12

SO16N

13

14

15

16

EAREF

HGATE

OCL

SS/INH

COMP

OCH

FB

SYNCH/NC

LGATE

PHASE

PGOOD/NC

7

10

SGND

VCC

VCCDR

BOOT

8

9

PGND

DSonLS

R

2

OCL

R

OCL

I

VALLEY

I

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