L6911E
Pin settings
2
2.1
Pin settings
Pin connection
Figure 2.
Pin connection
(top view)
VSEN
OCSET
SS/INH
VID0
VID1
VID2
VID3
VID4
COMP
FB
1
2
3
4
5
6
7
8
9
10
D98IN958
20
19
18
17
16
15
14
13
12
11
RT
OVP
VCC
LGATE
PGND
BOOT
UGATE
PHASE
PGOOD
GND
2.2
Pin description
Table 2. Pin description
N°
1
Name
VSEN
Description
Connected to the output voltage is able to manage over-voltage conditions and
the PGOOD signal.
A resistor connected from this pin and the upper Mos Drain sets the current
limit protection.
The internal 200µA current generator sinks a current from the
drain through the external resistor. The Over-Current threshold is due to the
following equation:
I
OCSET
Þ R
OCSET
I
P
= -----------------------------------------------
-
R
DSon
The soft start time is programmed connecting an external capacitor from this
pin and GND. The internal current generator forces through the capacitor
10µA.
This pin can be used to disable the device forcing a voltage lower than 0.4V
Voltage Identification Code pins. These input are internally pulled-up and TTL
compatible. They are used to program the output voltage as specified in
and to set the overvoltage and power good thresholds.
Connect to GND to program a ‘0’ while leave floating to program a ‘1’.
This pin is connected to the error amplifier output and is used to compensate
the voltage control feedback loop.
This pin is connected to the error amplifier inverting input and is used to
compensate the voltage control feedback loop.
2
OCSET
3
SS/INH
4-8
VID0 - 4
9
10
COMP
FB
5/34
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