le79r241 Zarlink Semiconductor, le79r241 Datasheet - Page 11

• Manufacturer Part Number: le79r241
• Description: Intelligent Subscriber Line Interface Circuit
• Manufacturer: Zarlink Semiconductor

Operating Ranges
Legerity guarantees the performance of this device over commercial (0ºC to 70ºC) and industrial (-40ºC to 85ºC) temperature
ranges by conducting electrical characterization over each range and by conducting a production test with single insertion
coupled to periodic sampling. These characterization and test procedures comply with section 4.6.2 of Bellcore GR-357-CORE
Component Reliability Assurance Requirements for Telecommunications Equipment.
Environmental Ranges
Electrical Ranges
SPECIFICATIONS
Power Dissipation
Loop resistance = 0 to ∞ unless otherwise noted (not including fuse resistors), 2 x 50 Ω fuse resistors, BATL = –36 V,
BATH = –90 V, VCC = +5 V. For power dissipation measurements, DC-feed conditions are as follows:
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ILA (Active mode current limit) = 25 mA (IRSN = 50 µA)
RFD (Feed resistance) = 500 Ω
VAS (Anti-sat activate voltage) = 10 V
VAPP (Apparent Battery Voltage) = 48 V
RMGLi = RMGPi (Thermal management resistors) = 1 kΩ
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
Power Dissipation Normal
Polarity
Power Supply Currents
Description
On-Hook Disconnect
On-Hook Standby
On-Hook TransmissionLe79R241 ISLIC device
Fixed Longitudinal Voltage
On-Hook Active High Battery Le79R241 ISLIC
device
Off-Hook Active Low Battery
Le79R241 ISLIC device
RL = 294 Ω
On-Hook Disconnect
On-Hook Standby
On-Hook Transmission
Fixed Longitudinal Voltage
On-Hook Active High Battery
Off-Hook Active Low Battery
RL = 294 Ω
Zarlink Semiconductor Inc.
Test Conditions
11
0 to 70°C Commercial
–40 to +85 °C extended temperature
15 to 85%
5 V ± 5%
–15 V to VBH
–42.5 to –99 V
–100 to +100 mV
20 kΩ minimum
20 kΩ minimum
TMG
VCC
VCC
VCC
VCC
VCC
VBH
VBH
VBH
VBH
VBH
VBL
VBL
VBL
VBL
VBL
Min
0.75
1.85
26.9
Typ
175
340
700
200
0.4
0.1
3.0
3.1
3.6
7.3
0.9
7.5
55
80
0
0
5
0
Max
100
215
400
800
0.7
3.5
1.1
3.5
2.5
4.5
8.0
2.0
70
10
6
Unit
mW
mA