SLIC Products
5
ABSOLUTE MAXIMUM RATINGS
Storage temperature.........................
–
55
°
C to +150
°
C
Ambient temperature, operating ...........
–
0
°
C to +70
°
C
V
CC
with respect to AGND.................
–
0.4 V to +7.0 V
V
EE
with respect to AGND ................. +0.4 V to
–
7.0 V
V
BAT
with respect to AGND ................ +0.4 V to
–
70 V
Note:
Rise time of V
BAT
(dv/dt) must be limited to 27 V/
μ
s or
less when Q
BAT
bypass is 0.33
μ
F.
BGND with respect to AGND/DGND.. +1.0 V to
–
3.0 V
A(TIP) or B(RING) to BGND:
Continuous .........................................
–
70 V to +2 V
10 ms (f = 0.1 Hz)...............................
–
70 V to +5 V
1
μ
s (f = 0.1 Hz)................................
–
90 V to +10 V
250 ns (f = 0.1 Hz)..........................
–
120 V to +15 V
Current from A(TIP) or B(RING)
.......................±
150 mA
Voltage on VCCRING ...........................
–
0.3 V to +7 V
Current through relay drivers or
internal driver catch diodes ..............................60 mA
Voltage on ring-trip inputs DA and DB.......V
BAT
to 0 V
Current into ring-trip inputs
.................................. ±
10 mA
Peak current into regulator switch (L pin) ........150 mA
Switcher transient peak off voltage on L pin ......+1.0 V
C3
–
C1, E0, E1, CHCLK
to AGND...................................
–
0.4 V to V
CC
+ 0.4 V
Maximum power dissipation (see note) .......T
A
= 70
°
C
In 32-pin PLCC package..................................1.2 W
Note:
Thermal limiting circuitry on-chip will shut down the
circuit at a junction temperature of about 165
°
C. The de-
vice should never be exposed to this temperature. Opera-
tion above 145
°
C junction temperature may degrade
device reliability. See the SLIC Packaging Considerations
for more information.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent device failure. Functionality at or above
these limits is not implied. Exposure to Absolute Maximum
Ratings for extended periods may affect device reliability.
OPERATING RANGES
Commercial (C) Devices
Ambient temperature............................. 0
°
C to +70
°
C*
V
CC
.....................................................4.75 V to 5.25 V
V
EE
.................................................
–
4.75 V to
–
5.25 V
V
BAT
..................................................
–
46.4 V to
–
54 V
V
CC
RING.................................................0 V to 5.25 V
AGND/DGND.......................................................... 0 V
BGND with respect to AGND....................
–
2 V to +2 V
Load resistance on VTX to ground.............. 10 k
min
Operating Ranges define those limits between which device
functionality is guaranteed.
* Functionality of the device from 0
°
C to +70
°
C is guaranteed
by production testing.
Performance from
–
40
°
C to +85
°
C is
guaranteed by characterization and periodic sampling of
production units.