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VIPER53EDIP-E

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P31
Operation pictures VIPer53EDIP - E / VIPer53ESP - E
22/31 DocRev1
Figure 9. Start-up V
DD
current Figure 10. Blanking Time
Figure 11. Thermal Shutdown Figure 12. Overvoltage Event
I
DD
V
DD
V
DDhyst
V
DDoff
V
DDon
I
DD0
I
DDch1
I
DDch2
V
DS
= 100 V
F
SW
= 0 kHz
V
COMP
t
b
t
b1
t
b2
V
COMPbl
V
COMPhi
V
DD
V
COMP
T
j
V
DDon
T
SD
T
SD
-T
HYST
Automatic
startup
Abnormal
operation
V
DS
V
COMP
V
DD
V
DDovp
Switching
Not
switching
VIPer53EDIP - E / VIPer53ESP - E Operation pictures
DocRev1 23/31
Figure 15. Oscillator Schematic
Figure 13. Shutdown Action Figure 14. Comp Pin Gain and Offset
t
t
I
D
V
COMP
t
V
OSC
V
COMPoff
V
OSChi
V
OSClo
V
COMP
I
Dpeak
V
COMPos
V
COMPhi
Slope = 1 / H
COMP
I
Dlim
V
COMPovl
I
Dmax
320 Ω
SOURCE
OSC
VDD
PWM
section
Ct
Rt
Operation pictures VIPer53EDIP - E / VIPer53ESP - E
24/31 DocRev1
The switching frequency settings shown on the graphic here below is valid within the
following boundaries:
R
t
> 2kΩ
F
SW
= 300kHz
Figure 16. Oscillator Settings
Figure 17. Typical Frequency Variation vs. Junction Temperature
11010
0
10
300
100
Frequency (kHz)
R
T
(K
Ω
)
1nF
2.2nF
4.7nF
10nF
22nF
-20 0 20 40 60 80 100 12
0
0.96
0.98
1
1.02
1.04
Normalised Frequency
Temperature (°C)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P31

VIPER53EDIP-E

Mfr. #:
Buy VIPER53EDIP-E
Manufacturer:
STMicroelectronics
Description:
AC/DC Converters Primary Switch OFF-line
Lifecycle:
New from this manufacturer.
Delivery:
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