ATTL7554BP Agere Systems, ATTL7554BP Datasheet - Page 7

• Manufacturer Part Number: ATTL7554BP
• Description: L7554 Low-Power SLIC
• Manufacturer: Agere Systems

Data Sheet
March 1997
Lucent Technologies Inc.
Recommended Operating Conditions
Electrical Characteristics
Minimum and maximum values are testing requirements. Typical values are characteristic of the device and are the
result of engineering evaluations. Typical values are for information purposes only and are not part of the testing
requirements. Minimum and maximum values apply across the entire temperature range (–40 C to +85 C) and
the entire battery range unless otherwise specified. Typical is defined as 25 C, V
I
Table 4. Power Supply
1. This parameter is not tested in production. It is guaranteed by design and device characterization.
Ambient Temperature
V
V
Loop Closure Threshold-detection Programming Range
dc Loop Current-limit Programming Range
On- and Off-hook 2-wire Signal Level
ac Termination Impedance Programming Range
LIM
Power Supply—Powerup, No Loop Current
Power Supply—Low-Power Scan, Forward Bat, No Loop
Power Supply Rejection 500 Hz to 3 kHz
Thermal Protection Shutdown (T
Thermal Resistance, Junction to Ambient (
Current
(See Figures 5, 6, 15, and 16.)
L7554AP
L7554BP
I
I
Power Dissipation (V
I
I
Power Dissipation (V
V
V
CC
BAT
CC
BAT
CC
BAT
CC
BAT
= 40 mA. Positive currents flow into the device. Test circuit is Figure 4 unless noted.
Supply Voltage
Supply Voltage:
(V
(V
BAT
BAT
= –48 V)
= –48 V)
BAT
BAT
Parameter
Parameter
= –48 V)
= –48 V)
1
jc
)
JA
)
4.75
Min
–40
–24
–24
150
Min
35
45
—
—
—
—
—
—
—
—
—
—
5
–3.0
–1.4
Typ
Typ
–40
–48
600
165
175
5.0
4.1
2.7
10
40
82
47
—
—
—
1
CC
= 5.0 V, V
L7554 Low-Power SLIC
1300
Max
5.25
Max
–3.5
–1.7
–60
–72
I
191
100
2.2
4.8
3.7
BAT
85
LIM
45
—
—
—
—
= –48 V, and
Vrms
Unit
Unit
mW
mW
mA
mA
mA
mA
mA
mA
C/W
dB
dB
V
V
V
C
C
7