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參數資料
| 型號： | L9219A |
| 英文描述： | CAP CER 390PF 3.15KVDC R3 RAD |
| 中文描述： | 低成本線接口，具有反向電池和雙電流限制 |
| 文件頁數： | 8/30頁 |
| 文件大小： | 397K |
| 代理商： | L9219A |
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8
Agere Systems Inc.
Data Sheet
November 2001
with Reverse Battery and Dual Current Limit
L9219A/G Low-Cost Line Interface
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
CC
= 5.0 V, V
BAT
= –48 V, unless
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,
PCB board layers, and other related parameters must ensure that thermal shutdown temperature is not exceeded under normal use condi-
tions.
3. Airflow, PCB board layers, and other factors can greatly affect this parameter.
Parameter
Min
Typ
Max
Unit
Power Supply—Powerup, No Loop Current:
I
CC
I
BAT
(V
BAT
= –48 V)
Power Dissipation (V
BAT
= –48 V)
Power Supply—Scan, No Loop Current:
I
CC
I
BAT
(V
BAT
= –48 V)
Power Dissipation (V
BAT
= –48 V)
Power Supply—Disconnect, No Loop Current:
I
CC
I
BAT
(V
BAT
= –48 V)
Power Dissipation (V
BAT
= –48 V)
Power Supply Rejection 500 Hz to 3 kHz
(See Figure 5 and Figure 6)
1
:
V
CC
V
BAT
Thermal Protection Shutdown (T
jc
)
3
Thermal Resistance, Junction to Ambient (
θ
JA
)
2, 3
:
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
—
—
—
4.6
–2.4
138
5.6
–2.7
158
mA
mA
mW
—
—
—
2.8
–0.8
52
3.8
–1.0
67
mA
mA
mW
—
—
—
1.6
–0.12
14
—
—
—
mA
mA
mW
30
40
—
—
—
—
dB
dB
°
C
150
165
—
—
—
—
—
30
43
27
36
—
—
—
—
°
C/W
°
C/W
°
C/W
°
C/W
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