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L6732C

3 Pin connections and functions

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3

Pin connections and functions

Figure 2.

Pins connection ( Top view)

Table 3.

Pin functions

Pin n.

Name

Function

1

PGOOD

This pin is an open collector output and it is pulled low if the output voltage is not

within the specified thresholds (90%-110%). If not used it may be left floating. Pull-up

2

SYNCH

It is a Master-Slave pin. Two or more devices can be synchronized by simply

be the Master. The Slave devices will operate with 180° phase shift from the Master.

The best way to synchronize devices together is to set their FSW at the same value. If

it is not used the SYNCH pin can be left floating.

3

SGND

All the internal references are referred to this pin.

4

FB

the compensation network. This pin is also used to sense the output voltage in order

to manage the over voltage conditions and the PGood signal.

5

COMP

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

voltage control feedback loop.

6

SS/INH

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

GND. The internal current generator forces a current of 10 A through the capacitor.

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

1

2

3

4

5

6

11

12

HTSSOP16

13

14

15

16

SGND

EAREF

FB

PGOOD

SYNCH

COMP

VCC

LGATE

PHASE

SS/INH

PGND

7

10

VCCDR

BOOT

HGATE

8

9

OCL

OCH

Obsolete

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