Datasheet

Electrical data VIPER26
6/25 Doc ID 17736 Rev 2
4.3 Electrical characteristics
(T
J
= -25 to 125 °C, V
DD
= 14 V
(a)
; unless otherwise specified)
a. Adjust V
DD
above V
DDon
startup threshold before setting to 14 V
Table 6. Power section
Symbol Parameter Test condition Min Typ Max Unit
V
BVDSS
Break-down voltage
I
DRAIN
= 1 mA,
V
COMP
= GND, T
J
= 25 °C
800 V
I
OFF
OFF state drain current
V
DRAIN
= max rating,
V
COMP
= GND
60 µA
R
DS(on)
Drain-source on state
resistance
I
DRAIN
= 0.2 A, T
J
= 25 °C 7 Ω
I
DRAIN
= 0.2 A, T
J
= 125 °C 14 Ω
C
OSS
Effective (energy related)
output capacitance
V
DRAIN
= 0 to 640 V 40 pF
Table 7. Supply section
Symbol Parameter Test condition Min Typ Max Unit
Volt ag e
V
DRAIN
_START
Drain-source start voltage 60 80 100 V
I
DDch1
Charging current during the
start up
V
DRAIN
= 100 V to 640 V,
V
DD
= 4 V
-0.6 -1.8 mA
I
DDch2
Charging current during the
autorestart
V
DRAIN
= 100 V to 640 V,
V
DD
= 9 V falling edge
-7 -13 mA
V
DD
Operating voltage range 11.5 23.5 V
V
DDclamp
V
DD
clamp voltage I
DD
= 15 mA 23.5 V
V
DDon
V
DD
start up threshold 12 13 14 V
V
DDCSon
VDD on internal high voltage
current generator threshold
9.5 10.5 11.5 V
V
DDoff
V
DD
under voltage shutdown
threshold
789V
Current
I
DD0
Operating supply current, not
switching
F
OSC
= 0 kHz,
V
COMP
= GND
0.6 mA
I
DD1
Operating supply current,
switching
V
DRAIN
= 120 V,
F
SW
= 60 kHz
2.5 mA
V
DRAIN
= 120 V,
F
SW
= 115 kHz
3.5 mA
I
DDoff
Operating supply current with
V
DD
< V
DDoff
V
DD
< V
DDoff
0.35 mA
I
DDol
Open loop failure current
threshold
V
DD
= V
DDclamp
V
COMP
= 3.3 V,
4mA