LUCL9219AAR-D AGERE [Agere Systems], LUCL9219AAR-D Datasheet - Page 8

• Manufacturer Part Number: LUCL9219AAR-D
• Description: Low-Cost Line Interface with Reverse Battery and Dual Current Limit
• Manufacturer: AGERE [Agere Systems]

L9219A/G Low-Cost Line Interface
with Reverse Battery and Dual Current Limit
Electrical Characteristics
Minimum and maximum values are testing requirements in the temperature range of 25 °C to 85 °C and battery
range of –24 V to –70 V. These minimum and maximum values are guaranteed to –40 °C based on component
simulations and design verification of samples, but devices are not tested to –40 °C in production. The test circuit
shown in Figure 4 is used, unless otherwise noted. Positive currents flow into the device.
Typical values are characteristics of the device design at 25 °C based on engineering evaluations and are not part
of the test requirements. Supply values used for typical characterization are V
otherwise noted.
Table 4. Power Supply
1. This parameter is not tested in production. It is guaranteed by design and device characterization.
2. Careful thermal design as a function of maximum battery, loop length, maximum ambient temperature package thermal resistance, airflow,
3. Airflow, PCB board layers, and other factors can greatly affect this parameter.
8
Power Supply—Powerup, No Loop Current:
Power Supply—Scan, No Loop Current:
Power Supply—Disconnect, No Loop Current:
Power Supply Rejection 500 Hz to 3 kHz
Thermal Protection Shutdown (T
Thermal Resistance, Junction to Ambient (
(See Figure 5 and Figure 6)
PCB board layers, and other related parameters must ensure that thermal shutdown temperature is not exceeded under normal use condi-
tions.
Natural Convection 2S2P Board
Natural Convection 2S0P Board
Wind Tunnel 100 Linear Feet per Minute (LFPM) 2S2P Board
Wind Tunnel 100 Linear Feet per Minute (LFPM) 2S0P Board
I
I
Power Dissipation (V
I
I
Power Dissipation (V
I
I
Power Dissipation (V
V
V
CC
BAT
CC
BAT
CC
BAT
CC
BAT
(V
(V
(V
BAT
BAT
BAT
= –48 V)
= –48 V)
= –48 V)
BAT
BAT
BAT
= –48 V)
= –48 V)
= –48 V)
1
:
Parameter
jc
)
3
JA
)
2, 3
:
CC
Min
150
= 5.0 V, V
30
40
—
—
—
—
—
—
—
—
—
—
—
—
—
–0.12
–2.4
–0.8
Typ
138
165
4.6
2.8
1.6
BAT
52
14
30
43
27
36
—
—
November 2001
= –48 V, unless
Agere Systems Inc.
Max
–2.7
–1.0
158
5.6
3.8
Data Sheet
67
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Unit
mW
mW
mW
mA
mA
mA
mA
mA
mA
C/W
C/W
C/W
C/W
dB
dB
C