Absolute Maximum Ratings
STV8172A
2/14
STMicroelectronics Confidential
1
Absolute Maximum Ratings
Note:1. Usually the flyback voltage is slightly more than 2 x V
S
. This must be taken into consideration when
setting
V
S.
2. Versus pin 4
3. V3 is higher than V
S
during the first half of the flyback pulse.
4. Such repetitive output peak currents are usually observed just before and after the flyback pulse.
5. This non-repetitive output peak current can be observed, for example, during the Switch-On/Switch-
Off phases. This peak current is acceptable providing the SOA is respected (
Figure 8
and
Figure 9
).
6. All pins have a reverse diode towards pin 4, these diodes should never be forward-biased.
7. Input voltages must not exceed the lower value of either V
S
+ 2 or 40 volts.
2
Thermal Data
Symbol
Parameter
Value
Unit
Voltage
V
S
Supply Voltage (pin 2) -
Note 1
and
Note 2
40
V
V
5
, V
6
Flyback Peak Voltage -
Note 2
70
V
V
3
Voltage at Pin 3 -
Note 2
,
Note 3
and
Note 6
-0.4 to (V
S
+ 3)
V
V
1
, V
7
Amplifier Input Voltage -
Note 2
,
Note 6
and
Note 7
- 0.4 to (V
S
+ 2) or +40
V
Current
I
0
(1)
Output Peak Current at f = 50 to 200 Hz, t
£
10μs -
Note 4
±5
A
I
0
(2)
Output Peak Current non-repetitive -
Note 5
±2
A
I
3
Sink
Sink Current, t<1ms -
Note 3
2
A
I
3
Source
Source Current, t
<
1ms
2
A
I
3
Flyback pulse current at f=50 to 200 Hz, t
£
10
m
s -
Note 4
±5
A
ESD Susceptibility
ESD1
Human body model (100 pF discharged through 1.5 k
W
)
2
kV
ESD2
EIAJ Standard (200 pF discharged through 0
W
)
300
V
Temperature
T
s
Storage Temperature
-40 to 150
°C
T
j
Junction Temperature
+150
°C
Symbol
Parameter
Value
Unit
R
thJC
Junction-to-Case Thermal Resistance
3
°C/W
T
T
Temperature for Thermal Shutdown
150
°C
T
J
Recommended Max. Junction Temperature
120
°C
