VIPEr100ASP STMicroelectronics, VIPEr100ASP Datasheet - Page 15

• Manufacturer Part Number: VIPEr100ASP
• Description: SMPS PRIMARY I.C.
• Manufacturer: STMicroelectronics

Figure 18: Typical Compensation Network
Figure 20: External Clock Sinchronisation
COMP pin
current of the device to a value:
where:
The suggested value for R
220K .
V
I
DPEAK
COMP
=
=
OSC
0.6
V
-------------------------------------
in order to limit the primary peak
COMP
13V
VDD
H ID
R
--------------------- -
10 k
1
R 2
+
-
+
C2
–
R
OSC
0.5
U1
VIPER100
2
1
COMP
13V
+R
FC00121
R1
C1
VDD
2
+
SOURCE
-
is in the range of
U1
VIPER100
DRAIN
COMP SOURCE
FC00220
DRAIN
OVER-TEMPERATURE PROTECTION:
Over-temperature protection is based on chip
temperature sensing. The minimum junction
temperature at which over-temperature cut-out
occurs is 140ºC while the typical value is 170ºC.
The device is automatically restarted when the
junction temperature decreases to the restart
temperature threshold that is typically 40ºC below
the shutdown value (see figure 8).
Figure 19: Slope Compensation
Figure 21: Current Limitation Circuit Example
R 2
C 1
O S C
VIPer100/SP - VIPer100A/ASP
R 1
R 3
Q 1
1 3 V
V D D
O SC
+
-
R 1
R 2
13 V
VD D
U 1
V IP E R 1 0 0
C 2
+
-
C O M P
U 1
V IP E R 1 00
F C 0 0 2 40
C O M P
C 3
S O U R C E
Q 1
F C 00141
D R A IN
S O U RC E
D RA IN
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