Le79489
DC FEED CHARACTERISTICS
R
DC
= R
DC1
+ R
DC2
= 11.67 kΩ,
RFA = 0
Ω
No fuse resistors
OVH = 1
Data Sheet
BAT1 = –50 V
60
18.8 mA, 38.8 V
3
48.0 mA, 18.5 V
V
AB
(Volts)
2
41.5 V
1
0
0
Notes:
Graph is for illustration only.
1.
V
AB
= I
LIMIT
•
RCL – I
L
•
RCL
I
L
(mA)
50.0 mA
60
RDC
-
2.
V
AB
= 52 V – I
L
------------
GDC
RDC -
V
AB
= 0.8
V
BAT1
+
2.2
– I
L
-----------------------
, OVH = 1
5
•
GDC
3a.
RDC
-
3b.
V
AB
= 0.8
V
BAT1
– 1.0 – I
L
-----------------------
, OVH = 0
5
•
GDC
a. Load Line (Typical)
A
a
R
L
b
I
L
SLIC
RSN
R
DC1
R
DC2
B
RDC
C
DC
Feed current programmed by R
DC1
and R
DC2
b. Feed Programming
Figure 1.
DC Feed Characteristics
12
Zarlink Semiconductor Inc.