VIPer50A-E/ASP-E
5 Operation Description
5.8
Operation Pictures
Figure 5.
V
Regulation Point
Figure 6. Undervoltage Lockout
DD
ICOMP
Slope =
GminmA/V
IDD
ICOMPHI
DD0
I
VDD
VDS= 35 V
Fsw = 0
DDhyst
V
0
VDD
DDon
DDoff
V
V
ICOMPLO
DDch
I
V
DDreg
FC00170
FC00150
Figure 7. Transition Time
Figure 8. Shutdown Action
VOSC
ID
t
t
t
VCOMP
tDISsu
10% Ipeak
t
VDS
VCOMPth
ID
90% VD
10% VD
tf
t
tr
FC00160
ENABLE
ENABLE
DISABLE
FC00060
Figure 9. Breakdown Voltage vs. Temperature Figure 10. Typical Frequency Variation
FC00190
FC00180
1.15
1
0
(%)
BVDSS
(Normalized)
1.1
-1
-2
-3
-4
-5
1.05
1
0.95
0
20 40 60 80 100 120 140
Temperature (°C)
0
20 40 60 80 100 120
Temperature (°C)
15/31
STMICROELECTRONICS [ ST ]
