VN380
ELECTRICAL CHARACTERISTICS
(continued)
PROTECTIONS AND DIAGNOSTICS
Symb ol
T
t sd
I
lim
V
ov
V
diag
V
d iag( CL)
T
d
Parameter
Thermal Shut-Down
Temperature
Current Cut Off Level
Over Voltage Threshold VinA = V
in B
= 5 V
Status O utput Voltage
Status O utput Clamp
Voltage
Status Propagation
Delay
Diagnostic O utput Active (low)
Idiag = 2 mA
Idiag = 10 mA
Demagnetization Mode
(F ast turn-off)
Vdiag = 1 V (see figure 3)
Iload = I
n
= 5 A
Iload = I
n
= 5 A
Demagnetization Mode
(F ast turn-off)
Vcl = V
c l1
or
Vcl2
60
24
Vcl -5
70
28.5
8
9.5
Test Cond ition s
Min.
160
15
27
0.5
11
Typ .
180
Max.
200
30
Un it
o
C
A
V
V
V
70
80
µs
V
V
cl1
V
cl2
V
f b
Switch S1 Detection
Clamp
Output Inductive
Clamp Voltage
Flyback Diagnostic
Threshold
Oper Load Current
Level
I
ol
TRUTH TABLE
Co nditi ons
Standby Modes
Excitation Mode
Recirculation Mode
Demagnetization Mode
(Fast turn off)
V
pwr2
+ V
cl2
< V
cl1
V
pwr2
+ V
cl2
> V
cl1
T hermal Shutdown
Current Cut Off
IN A
b
O
O pen Load
O vervoltage
so
te
le
ro
P
uc
d
s)
t(
H
H
L
L
H
H
L
L
so
b
-O
IN B
L
H
H
L
L
L
H
H
P
te
le
5
S1
ON
od
r
s)
t(
uc
33
V
V
cl
V
700
mA
S2
OF F
OF F
OF F
ON
OF F
OF F
OF F
OF F
ON
OF F
OF F
ON
OF F
ON
ON
See Open Load W aveforms
H
H
OF F
ON
4/9
STMICROELECTRONICS [ STMICROELECTRONICS ]
