le7920 Zarlink Semiconductor, le7920 Datasheet - Page 6

• Manufacturer Part Number: le7920
• Description: Subscriber Line Interface Circuit
• Manufacturer: Zarlink Semiconductor

ABSOLUTE MAXIMUM RATINGS
Storage temperature ......................... –55°C to +150°C
V
V
BGND with respect to AGND/DGND........ +3 V to –3 V
A(TIP) or B(RING) to BGND:
Current from A(TIP) or B(RING).....................±150 mA
RINGOUT/RYOUT1,2,3 current.........................50 mA
RINGOUT/RYOUT1,2,3 voltage ........... BGND to +7 V
RINGOUT/RYOUT1,2,3 transient ....... BGND to +10 V
DA and DB inputs
C2–C1 and D3–D1
Maximum power dissipation, continuous,
T
Thermal Data:................................................................θ
ESD immunity/pin (HBM) ..................................1500 V
Note: Thermal limiting circuitry on chip will shut down the circuit at a junction temperature of about 165°C. Continuous operation
above 145°C junction temperature may degrade device reliability.
Stresses above those listed under "Absolute Maximum Ratings" can 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.
A
CC
BAT
Continuous..................................... +0.4 V to –70 V
10 ms ............................................. +0.4 V to –75 V
Continuous ........................................ V
10 ms (f = 0.1 Hz) ............................. –70 V to +5 V
1 µs (f = 0.1 Hz) ................................ –80 V to +8 V
250 ns (f = 0.1 Hz) .......................... –90 V to +12 V
Voltage on ring-trip inputs .....................V
Current into ring-trip inputs ......................... ±10 mA
Input voltage .........................–0.4 V to V
In 32-pin PLCC package................................1.7 W
In 32-pin PLCC package....................... 43°C/W typ
= 70°C, No heat sink (See note)
with respect to AGND/DGND ..... –0.4 V to +7.0 V
with respect to AGND/DGND:
BAT
CC
BAT
Zarlink Semiconductor Inc.
to +1 V
+ 0.4 V
to 0 V
JA
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