am79231 ETC-unknow, am79231 Datasheet - Page 14

• Manufacturer Part Number: am79231
• Description: Intelligent Subscriber Line Interface Circuit Islic
• Manufacturer: ETC-unknow

Thermal Resistance
Absolute Maximum Ratings
Operating Ranges
Environmental Ranges
Electrical Maximum Ranges
14
The junction to air thermal resistance of the Am79231 in a 32-pin, PLCC package is 45°C/W. The
typical junction to case thermal resistance is 14°C/W. Measured under free air convection conditions
and without external heatsinking.
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.
Note:
Vloopmax: Maximum expected loop voltage in application; I
Vpk:
Storage temperature
Ambient temperature, under bias
Humidity
VCC with respect to GND
VBH, VBL with respect to GND
BGND with respect to GND
Voltage on relay outputs
AD or BD to BGND:
Continuous
10 ms (F = 0.1 Hz)
1 µs (F = 0.1 Hz)
250 ns (F = 0.1 Hz)
Current into SA or SB: 10 µs rise to Ipeak; 1000 µs fall to 0.5 Ipeak;
2000 µs fall to I =0
Current into SA or SB: 2 µs rise to Ipeak; 10 µs fall to 0.5 Ipeak; 20 µs fall to I = 0
SA SB continuous
Current through AD or BD
P1, P2, P3, LD to GND
ESD Immunity (Human Body Model)
Maximum power dissipation,
Notes:
1. Thermal limiting circuitry on chip will shut down the circuit at a junction temperature of about 165°C. The
2. Rise time of VBH (dv/dt) must be limited to less than 27 v/µs.
Ambient Temperature
Ambient Relative Humidity
VCC
VBL
VBH
BGND with respect to GND
Load resistance on VTX to Vref
Load resistance on VSAB to Vref
T
device should never see this temperature. Operation above 145°C junction temperature may degrade
device reliability.
A
= 85°C
Peak signal voltage for application.
1
T
A
2
Am79231 Data Sheet
= 70°C
0 to 70°C Commercial
–40 to +85 °C extended temperature
15 to 85%
5 V ± 5%
–(Vloopmax + 6V + Vpk) to VBH V
–42.5 V to –70 V
–100 mV to +100 mV
20 kΩ minimum
20 kΩ minimum
LOOP
• maximum off-hook loop resistance.
–55 to +150°C
–40 to +85°C
TBD
–0.4 to +7 V
+0.4 to –70 V
–3 to +3 V
+7 V
VBH – 1 to BGND + 1
VBH – 5 to BGND + 5
VBH – 10 to BGND + 10
VBH – 15 to BGND + 15
Ipeak = ±5 mA
Ipeak = ±12.5 mA
5 mA
± 150 mA
–0.4 to VCC + 0.4 V
1500 V min
1.67 W
1.33 W