PEB3265 Infineon Technologies Corporation, PEB3265 Datasheet - Page 95

• Manufacturer Part Number: PEB3265
• Description: (PEB326x / PEB426x) Dual Channel Slicofi-2 / Slic Duslic
• Manufacturer: Infineon Technologies Corporation

Preliminary
4.7.3
The SLIC power dissipation mainly comes from internal bias currents and the buffers
output stage (to a lesser extent from the sensor) where additional power is dissipated
whenever current is fed to the line.
4.7.3.1
In Power Down modes, the internal bias currents are reduced to a minimum and no
current is fed to the line (see
hook detection, the power dissipation of 5 mW (6 mW for SLIC-P) is negligible. Note that
this is the dominant factor for a low mean power value in large systems, as a large
percentage of lines are always inactive.
4.7.3.2
In Active mode, the selected battery voltage
power dissipation. The power dissipation in the output stage
Chapter
V
V
minimum battery voltage required is determined by the longest line and therefore the
maximum line resistance
V
V
Table 17
Mode
ACTL
ACTH
ACTR
ROR, ROT
HIR, HIT
1)
Data Sheet
TIP/RING
TIP/RING
AC,P
DROP
V
BATx
..................... Peak value of AC signal
................... Sum of voltage drop in the SLIC buffers
=
7.2.5) is determined by the difference between
. At constant DC line current
, and accordingly exhibit the highest on-chip power dissipation. However, the
V
Power Dissipation of the SLIC
Power Down Modes
Active Mode
V
BATL
BATx,min
Typical Buffer Voltage Drops (Sum) for
,
V
SLIC-E/-E2/-S/-S2
I
I
(
–
(
BATH
I
I
TRANS
TRANS
TRANS
T or R
=
I
Trans
or
R
L,MAX
V
48
96
100
BATR
100
Table
(
R
and in addition
L,MAX
) + 1 V
) + 1 V
19,
Total Voltage drop
I
Trans
+
Table 21
R
95
PROT
, the shortest lines (lowest
V
R
BATx
+
PROT
and
R
STAB
1)
SLIC-P
I
I
I
I
I
Table
TRANS
TRANS
TRANS
TRANS
T or R
has the strongest influence on
and
V
I
) +
BATx
TRANS
V
(Table
DROP
P
R
V
Operational Description
STAB
O
23). Even with active off-
AC,P
and the Tip-Ring voltage
52
(see
88
100
92
92
(
I
[V]
.
T
+
17)
or
Chapter 7.1.5
V
R
DROP
I
L
R
) cause lowest
)
2000-07-14
DuSLIC
and