L5985 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L5985' PDF : 36 Pages View PDF
L5985
3
Electrical characteristics
Electrical characteristics
TJ=25°C, VCC=12V, unless otherwise specified.
Table 3. Electrical characteristics
Symbol
Parameter
Test condition
VCC
Operating input voltage (1)
range
VCCON Turn on VCC threshold
(1)
VCCOFF Turn off VCC threshold
(1)
RDSON Mosfet on resistance
(1)
ILIM
Maximum limiting current
Oscillator
FSW Switching frequency
(1)
VFSW
D
FADJ
FSW pin voltage
Duty Cycle
Adjustable switching
frequency
RFSW=33kΩ
Dynamic characteristics
VFB Feedback voltage
DC characteristics
2.9V<VCC<18V
IQ
IQST-BY
Quiescent current
Total stand-by quiescent
current
Duty Cycle=0,
VFB=0.8V
Inhibit
INH threshold voltage
INH current
Device ON level
Device OFF level
INH=0
Soft start
TSS Soft start duration
FSW=Floating
FSW=1MHz,
RFSW=33kΩ
Values
Unit
Min Typ Max
2.9
18
2.9
V
2.4
x
150
x
mΩ
150 300
2.5 2.9 3.3
A
225 250 275
KHz
x
250
x
1.262
V
0
100
%
1000
KHz
0.593 0.6 0.607 V
2.4 mA
20
30
µA
0.6
V
1.9
7.5
10
µA
7.4 8.2 9.1
ms
2
5/36
Share Link: 
