STLC3080 STMicroelectronics, STLC3080 Datasheet - Page 17

• Manufacturer Part Number: STLC3080
• Description: IC INTERFACE LINE SUBSCRB 44TQFP
• Manufacturer: STMicroelectronics

Specifications of STLC3080

• Function: Subscriber Line Interface Concept (SLIC)
• Number Of Circuits: 1
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 5.5mA
• Power (watts): 1.1W
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 44-LQFP
• Includes: Automatic Activation Mode, BORSCHT Functions, Ring Trip Detection, Slave Mode
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -

Figure B2. Rfeed allowed values vs. Ilim (Vbat = -54V).
Figure B3. Rfeed allowed values vs. Ilim (Vbat = -60V).
EXAMPLE:
Considering the following parameters:
Vbat = -48V, max Tamb = 70°C, Ilim = 25mA,
Qext able to dissipate 1W, the possible values of
Rfeed can be found in fig. 1 and are limited by the
b2 curve (upper limit) and the a1 curve (lower
limit).
In particular considering the Ilim = 25mA the
Rfeed allowed range will be:
500 < Rfeed < 1700
STLC3080
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