CD00257532 Datasheet, PDF (7/19 Pages) STMicroelectronics – Application information

L4949ED-E, L4949EP-E
2
Electrical specifications
2.1
Absolute maximum ratings
Table 3.
Symbol
Absolute maximum ratings⁽¹⁾
Parameter
V_SDC DC operating supply voltage
V_STR Transient supply voltage (T < 1s)
I_O
Output current
V_O Output voltage
V_RES, V_SO Output voltage
I_RES, I_SO Output current
V_CT
Reset delay voltage
V_SIDC Sense input voltage
V_Z
Preregulator output voltage
I_Z
Preregulator output current
T_J
Junction temperature
T_stg Storage temperature range
1. The circuit is ESD protected according to MIL-STD-883C.
2.2
Thermal data
Table 4. Thermal data
Symbol
Description
R_{th j-amb}
R_{th j-pins}
TJSD
Thermal Resistance Junction-ambient (max)
Thermal Resistance Junction-pins (max)
Thermal Shutdown Junction temperature
Electrical specifications
Value
Unit
28
V
40
V
Internally limited
20
V
20
V
5
mA
7
V
28
V
7
V
5
mA
-40 to +150
°C
-55 to +150
°C
SO-8
SO20L
200
50
15
165
Unit
°C/W
°C/W
°C
Doc ID 16823 Rev 1
7/19