L5980 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L5980' PDF : 37 Pages View PDF
Electrical characteristics
3
Electrical characteristics
L5980
TJ = 25 °C, VCC = 12 V, unless otherwise specified.
Table 4. Electrical characteristics
Symbol
Parameter
Test condition
VCC
Operating input voltage (1)
range
VCCON Turn on VCC threshold
(1)
VCCOFF Turn off VCC threshold
(1)
RDS(on) MOSFET on resistance (1)
ILIM
Maximum limiting current
Oscillator
FSW Switching frequency
(1)
VFSW
D
FADJ
FSW pin voltage
Duty cycle
Adjustable switching
frequency
Dynamic characteristics
VFB Feedback voltage
DC characteristics
RFSW = 33 kΩ
2.9 V < VCC < 18 V (1)
IQ
IQST-BY
Quiescent current
Total stand-by quiescent
current
Duty cycle = 0,
VFB = 0.8 V
Inhibit
INH threshold voltage
INH current
Device ON level
Device OFF level
INH = 0
Soft-start
TSS Soft-start duration
FSW pin floating
FSW = 1 MHz,
RFSW = 33 kΩ
Values
Unit
Min Typ Max
2.9
18
2.9
V
2.4
140 170
mΩ
140 220
1.0 1.3 1.6
A
225 250 275
kHz
220
275
1.254
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
5/37
Share Link: 
