Datasheet
Electrical data VIPER27
6/31 Doc ID 15133 Rev 5
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
start-up threshold before settings 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
FB
= GND
T
J
= 25 °C
800 V
I
OFF
OFF state drain current
V
DRAIN
= max rating,
V
FB
= GND
60 μA
R
DS(on)
Drain-source on state
resistance
I
DRAIN
= 0.4 A, V
FB
= 3 V, V
BR
= GND,
T
J
= 25 °C
7 Ω
I
DRAIN
= 0.4 A, V
FB
= 3 V, V
BR
= GND,
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
Voltag e
V
DRAIN
_START
Drain-source start voltage 60 80 100 V
I
DDch
Start up charging current
V
DRAIN
= 120 V, V
BR
= GND, V
FB
= GND,
V
DD
= 4 V
-2 -3 -4 mA
V
DRAIN
= 120 V, V
BR
= GND, V
FB
= GND,
V
DD
= 4 V after fault.
-0.4 -0.6 -0.8 mA
V
DD
Operating voltage range After turn-on 8.5 23.5 V
V
DDclamp
V
DD
clamp voltage I
DD
= 20 mA 23.5 V
V
DDon
V
DD
start up threshold
V
DRAIN
= 120 V, V
BR
= GND, V
FB
= GND
13 14 15 V
V
DDoff
V
DD
under voltage
shutdown threshold
7.5 8 8.5 V
V
DD(RESTART)
V
DD
restart voltage
threshold
V
DRAIN
= 120 V, V
BR
= GND, V
FB
= GND 4 4.5 5 V
Current
I
DD0
Operating supply current,
not switching
V
FB
= GND, F
SW
= 0 kHz, V
BR
= GND,
V
DD
= 10 V
0.9 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
DD_FAULT
Operating supply current,
with protection tripping
400 μA
I
DD_OFF
Operating supply current
with V
DD
< V
DD_OFF
V
DD
= 7 V 270 μA