Datasheet

ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter Value Unit
SO20 Powerdip
V
i
Input Voltage (pin 1 and pin 3 connected togheter)
47 V
V
3
–V
2
Input to Output Voltage Difference
47 V
V
2
Negative Output DC Voltage
–1 V
V
2
Negative Output Peak Voltage at t=0.2
µ
s, f=50kHz
–5 V
V
8
V
7
Power Fail Input
25 V
V
9
, V
11
V
8
, V
10
Reset and Power Fail Output
V
i
V
10
V
9
Reset Delay Input
5.5 V
V
13
, V
18
V
12
, V
16
Feedback and Inhibit Inputs
7V
V
19
, V
20
V
17
, V
18
Oscillator Inputs
5.5 V
P
tot
Total Power Dissipation Tpins
≤
90
°
C (Power DIP)
(T
amb
= 70
°
C no copper area on PCB)
(T
amb
= 70
°
C, 4cm
2
copper area on PCB)
5
1.3
2
W
W
W
T
stg
, T
j
Storage & Junction Temperature
(Tamb = 70
°
C 6cm
2
copper area on PCB)
–40 to 150
1.45
°
C
W
P
tot
Total Power Dissipation Tpins
≤
90
°
C (SO20L)
4W
PIN CONNECTION
(top view)
Powerdip18
SO20
L4963 - L4963D
2/17