L4949ED-E, L4949EP-E Electrical specifications
Doc ID 16823 Rev 2 7/19
2 Electrical specifications
2.1 Absolute maximum ratings
2.2 Thermal data
Table 3. Absolute maximum ratings
(1)
1.
The circuit is ESD protected according to MIL-STD-883C.
Symbol Parameter Value Unit
V
SDC
DC operating supply voltage 28 V
V
STR
Transient supply voltage (T < 1s) 40 V
I
O
Output current Internally limited
V
O
Output voltage 20 V
V
RES
, V
SO
Output voltage 20 V
I
RES
, I
SO
Output current 5 mA
V
CT
Reset delay voltage 7 V
V
SIDC
Sense input voltage 28 V
V
Z
Preregulator output voltage 7 V
I
Z
Preregulator output current 5 mA
T
J
Junction temperature -40 to +150 °C
T
stg
Storage temperature range -55 to +150 °C
Table 4. Thermal data
Symbol Description SO-8 SO20L Unit
R
th j-amb
Thermal Resistance Junction-ambient (max) 200 50 °C/W
R
th j-pins
Thermal Resistance Junction-pins (max) 15 °C/W
TJSD Thermal Shutdown Junction temperature 165 °C
