VIPER53-E View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'VIPER53-E' PDF : 36 Pages View PDF
Electrical characteristics
VIPer53 - E
Table 7. PWM comparator section
Symbol
Parameter
Test conditions
HCOMP ∆VCOMP / ∆IDPEAK
VCOMPos VCOMP Offset
VCOMP = 1 ... 4 V Figure 10.
dID/dt = 0
dID/dt = 0 Figure 10. on page 11
IDlim
IDmax
td
Peak drain current
limitation
ICOMP = 0mA; VTOVL = 0V
Figure 10.
dID/dt = 0
Drain current
capability
VCOMP = VCOMPovl; VTOVL = 0V
dID/dt = 0
Current sense delay to
Turn-Off
ID = 1A
VCOMPbl
VCOMP blanking time
change threshold
Figure 6 on page 10
tb1 Blanking time
VCOMP < VCOMPBLFigure 6.
tb2 Blanking time
VCOMP > VCOMPBLFigure 6.
tONmin1 Minimum On time
VCOMP < VCOMPBL
tONmin2 Minimum On time
VCOMPoff
VCOMP Shutdown
Threshold
VCOMP > VCOMPBL
Figure 9 on page 11
Min. Typ. Max. Unit
1.7 2 2.3 V/A
0.5
V
1.7 2 2.3 A
1.6 1.9 2.3 A
250
ns
1
V
300 400 500 ns
100 150 200 ns
450 600 750 ns
250 350 450 ns
0.5
V
Table 8. Overload protection section
Symbol
Parameter
Test conditions
VCOMPovl
VCOMP overload
threshold
ITOVL = 0mA (1)
Figure 4 on page 9
VDIFFovl
VCOMPhi to VCOMPovl
voltage difference
VDD = VDDoff ... VDDreg;
ITOVL= 0mA
Figure 4. (1)
VOVLth
VTOVL overload
threshold
Figure 4.
tOVL Overload delay
COVL = 100nF Figure 4.
1. VCOMPovl is always lower than VCOMPhi
Table 9. Over temperature Protection Section
Symbol
Parameter
Test Conditions
TSD
THYST
Thermal shutdown
temperature
Thermal shutdown
hysteresis
Figure 7 on page 10
Figure 7 on page 10
Min. Typ. Max. Unit
4.35
V
50 150 250 mV
4
V
8
ms
Min. Typ. Max. Unit
140 160
°C
40
°C
6/36
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