Preliminary Information
Absolute Maximum Ratings*
Parameter
1
DC Supply Voltage
Symbol
V
DD
V
EE
V
Bat
T
STG
P
D
Min
-0.3
+0.3
0.3
-40
Max
+15
-15
-60
100
MH88612C
Units
V
V
V
°C
2
3
Storage Temperature
Package Power Dissipation
2
w
* Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied.
Recommended Operating Conditions
Parameter
1
Operating Supply Voltage
Sym
V
DD
V
EE
V
Ref
V
Bat
V
RLY
2
Operating Temperature
T
O
0
* Typical figures are at 25°C and are for design aid only.
Min
4.75
-4.75
-27
Typ*
5.0
-5.0
0
-48
5
Max
5.25
-5.25
-60
70
Units
V
V
V
V
V
°C
Comments
Adjustable
DC Electrical Characteristics
†
Characteristics
1
Supply Current
-
Voltages are with respect to GNDA unless otherwise stated.
Sym
V
DD
V
EE
VBat
I
DD
I
EE
I
BAT
P
C
I
Loop
I
Loop
R
Loop
Min
0.8
0.5
0.0
Typ*
5
3
2
210
1410
Max
12
10
2.5
Units
mA
mA
mA
mW
mW
Test Conditions
Idle State
Standby
Active
V
Ref
= GNDA,
V
Bat
= -48V
Adjustable with Ext.
V
Ref
input, V
Bat
= -48V
V
Bat
= -48V @ I
Loop
=
18mA, R
Loop
includes
telephone set
2
3
4
5
Power Consumption
Constant Current Line Feed
Adjustable Loop Current Range
Operating Loop Resistance
18
18
21
24
30
1850
mA
mA
Ω
6
7
Ring Ground Over-Current
protection
Off-Hook Detect
Output Low Current (On-hook)
Output High Current (Off-hook)
Off- Hook Detect
Output Low Current (on-hook)
Input High Current. (activation)
RC Control Input
Input Low Volt. (no activation)
Input High Volt. (activation)
RC control Input
Input Low Current (no
activation)
Input high current (activation)
V
OL
V
OH
I
OL
I
OH
V
IL
V
IH
I
IL
I
IH
0.0
2.7
40
mA
Active high logic
0.4
5.25
8
-400
0.7
V
V
mA
µA
Active high logic
V
V
µA
µA
8
9
2.0
-50
50
10
† DC Electrical Characteristics are over recommended operating supply voltages.
* Typical figures are at 25°C with nominal +/-5V supplies and are for design aid only.
2-117
MITEL [ MITEL NETWORKS CORPORATION ]
