Datasheet

VIPER12A-E Electrical characteristics
Doc ID 11977 Rev 2 5/21
Table 5. Oscillation section
Symbol Parameter Test conditions Min Typ Max Unit
F
OSC
Oscillator frequency
total variation
V
DD
= V
DDoff
... 35 V;
T
J
= 0 ... 100 °C
54 60 66 kHz
Table 6. PWM comparator section
Symbol Parameter Test conditions Min Typ Max Unit
G
ID
I
FB
to I
D
current gain (See Figure 12 on page 14) 320
I
Dlim
Peak current
limitation
V
FB
= 0 V
(See Figure 12 on page 14)
0.32 0.4 0.48 A
I
FBsd
I
FB
shutdown current (See Figure 12 on page 14) 0.9 mA
R
FB
FB pin input
impedance
I
D
= 0 mA
(See Figure 12 on page 14)
1.2 kΩ
t
d
Current sense delay
to turn-OFF
I
D
= 0.2 A 200 ns
t
b
Blanking time 500 ns
t
ONmin
Minimum Turn-ON
time
700 ns
Table 7. Overtemperature section
Symbol Parameter Test conditions Min Typ Max Unit
T
SD
Thermal shutdown
temperature
(See Figure 13 on page 14) 140 170 °C
T
HYST
Thermal shutdown
hysteresis
(See Figure 13 on page 14) 40 °C
Table 8. Typical power capability
Mains type SO-8 DIP-8
European (195 - 265 Vac) 8W 13W
US / Wide range (85 - 265 Vac) 5W 8W