L5988D View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
L5988D
STMicroelectronics
'L5988D' PDF : 52 Pages View PDF
Functional description
L5988D
The circuitry related to the UOS multifunction pin is composed of a 3 bit A/D converter and
the decoding logic. Table 6 shows the internal thresholds of each voltage window
composing the VREF magnitude. The voltage biasing of the multifunction can be set
accordingly to table Table 7.
Table 6. A/D voltage windows
UVLO
OVP
SINK
1.8 V
1.575 V
1.35 V
1.125 V
0.9 V
0.675 V
0.45 V
0.225 V
0V
12 V BUS
12 V BUS
12 V BUS
12 V BUS
3.3 V BUS
3.3 V BUS
3.3 V BUS
3.3 V BUS
LATCH
LATCH
NO LATCH
NO LATCH
LATCH
LATCH
NO LATCH
NO LATCH
SINK
NO SINK
SINK
NO SINK
SINK
NO SINK
SINK
NO SINK
R1 (k)
0
0.68
1.2
2
3.3
6.2
11
N.C.
Table 7. UOS voltage biasing
R2 (k)
VOUS (V)
UVLO
N.C.
1.8
12 V BUS
2.7
1.438
12 V BUS
2.7
1.246
12 V BUS
2.7
1.034
12 V BUS
2.7
0.810
3.3 V BUS
2.7
0.546
3.3 V BUS
2.7
0.355
3.3 V BUS
0
0
3.3 V BUS
OVP
LATCH
LATCH
NO LATCH
NO LATCH
LATCH
LATCH
NO LATCH
NO LATCH
SINK
SINK
NO SINK
SINK
NO SINK
SINK
NO SINK
SINK
NO SINK
14/52
DocID15324 Rev 4
Share Link: 