L5988D View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
L5988D
STMicroelectronics
'L5988D' PDF : 52 Pages View PDF
Electrical characteristics
L5988D
Table 5. Electrical characteristic (continued)
Symbol
Parameter
Test condition
IO SOURCE
IO SRCE LIM
IO SINK
AV0
Source output current
Source current limitation
Sink output current
DC open loop gain
VFB = 0.2 V
(2)
VFB = 0.2 V, VCOMP = 3 V
VFB = 1.0 V, VCOMP = 0.5 V
(2)
Sync function
Min.
Typ.
25
2
30
100
Max. Unit
mA
mA
mA
dB
High input voltage
Low input voltage
Slave sink current
Master output amplitude
Output pulse width
Input pulse width
VSYNC = 3.3 V; FSW = float
ISOURCE = 5 mA
SYNCH = floating
2.9
4.0 V
0.74 V
1
mA
2.9
V
100
ns
70
ns
Reference section
VREF Reference voltage
Line regulation
Load regulation
Short circuit current
Vcc = 2.9 V to 18 V
Vcc = 2.9 V to 18 V
IREF = 0 mA
IREF = 0 to 5 mA
1.756 1.8 1.837 V
(1) 1.754 1.8 1.852 V
6
12 mV
7.5 15 mV
12 18 24 mA
Protections
VFB_OVP
Overvoltage trip
(VFB_OVP - VFB) / VFB
Bus thresholds
VFB rising
15
20
24
%
VFB
– UVLO 3.3 V bus
TH1 – OVP not latched
– No sink
– UVLO 3.3 V bus
TH2 – OVP not latched
– Sink
– UVLO 3.3 V bus
TH3 – OVP latched
– No sink
– UVLO 3.3 V bus
TH4 – OVP latched
– Sink
– UVLO 12 V bus
TH5 – OVP not latched
– No sink
(3)
0
(3) 0.26
(3) 0.48
(3) 0.71
(3) 0.93
0.2 V
0.425 V
0.65 V
0.875 V
1.085 V
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DocID15324 Rev 4
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