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参数资料
| 型号： | PBL386302QNT |
| 厂商： | ERICSSON |
| 英文描述： | AC/DC CAPACITANCE=0.5 VOLT=2000 |
| 中文描述： | 用户线接口电路 |
| 文件页数： | 16/16页 |
| 文件大小： | 134K |
| 代理商： | PBL386302QNT |
PBL 386 30/2
16
Ordering Information
Package
24 pin SSOP Tape & Reel
24 pin SOIC Tube
24 pin SOIC Tape & Reel
28 pin PLCC Tube
28 pin PLCC Tape & Reel
Temp. Range
-40
°
- +85
°
C
-40
°
- +85
°
C
-40
°
- +85
°
C
-40
°
- +85
°
C
-40
°
- +85
°
C
Part No.
PBL 386 30/2SHT
PBL 386 30/2SOS
PBL 386 30/2SOT
PBL 386 30/2QNS
PBL 386 30/2QNT
Information given in this data sheet is believed to be
accurate and reliable. However no responsibility is
assumed for the consequences of its use nor for any
infringement of patents or other rights of third parties
which may result from its use. No license is granted by
implication or otherwise under any patent or patent
rights of Ericsson Microelectronics. These products
are sold only according to Ericsson Microelectronics'
general conditions of sale, unless otherwise confirmed
in writing.
Specifications subject to change without
notice.
1522-PBL 386 30/2 Uen Rev. B
Ericsson Microelectronics AB 2000
Ericsson Microelectronics AB
SE-164 81 Kista-Stockholm, Sweden
Telephone: +46 8 757 50 00
This product is an original Ericsson
product protected by US, European and
other patents.
may be applied to the SLIC.
Secondary Protection
The circuit shown in figure 11 utilizes series
resistors together with a programmable
overvoltage protector
(e.g. Power Innovations TISPPBL2), serv-
ing as a secondary protection.
The TISPPBL2 is a dual forward-con-
ducting buffered p-gate overvoltage pro-
tector. The protector gate references the
protection (clamping) voltage to negative
supply voltage (i e the battery voltage, V
).
As the protection voltage will track the
negative supply voltage the overvoltage
stress on the SLIC is minimized.
Positive overvoltages are clamped to
ground by a diode. Negative overvoltages
are initially clamped close to the SLIC nega-
tive supply rail voltage and the protector will
crowbar into a low voltage on-state condi-
tion, by firing an internal thyristor.
A gate decoupling capacitor, C
, is
needed to carry enough charge to supply a
high enough current to quickly turn on the
thyristor in the protector. C
shall be
placed close to the overvoltage protection
device. Without the capacitor even the low
inductance in the track to the V
supply will
limit the current and delay the activation of
the thyristor clamp.
The fuse resistors R
serve the dual
purposes of being non- destructive energy
dissipators, when transients are clamped
and of being fuses, when the line is ex-
posed to a power cross.
If a PTC is chosen for R
, note that it is
important to always use PTC′s in series
with resistors not sensitive to temperature,
as the PTC will act as a capacitance for fast
transients and therefore will not protect the
SLIC.
Power-up Sequence
No special power-up sequence is neces-
sary except that ground has to be present
before all other power supply voltages.
Printed Circuit Board Layout
Care in PCB layout is essential for proper
function. The components connecting to
the RSN input should be placed in close
proximity to that pin, so that no interference
is injected into the RSN pin. Ground plane
surrounding the RSN pin is advisable.
Analog ground (AGND) should be con-
nected to battery ground (BGND) on the
PCB in one point.
The capacitors for the battery should be
connected with short wide leads of the
same length.
相关PDF资料 |
PDF描述 |
|---|---|
| PBL386302SHT | Subscriber Line Interface Circuit |
| PBL386302SOS | Subscriber Line Interface Circuit |
| PBL386302SOT | Subscriber Line Interface Circuit |
| PBL386302 | Subscriber Line Interface Circuit |
| PBL386302QNS | Subscriber Line Interface Circuit |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PBL386302QNTNT | 制造商:Infineon Technologies AG 功能描述:POTS |
| PBL386302SHT | 制造商:ERICSSON 制造商全称:Ericsson 功能描述:Subscriber Line Interface Circuit |
| PBL386302SOAXT | 制造商:Infineon Technologies AG 功能描述:SLIC 1-CH 66dB 45mA 5V 24-Pin DSO T/R |
| PBL386302SOS | 制造商:ERICSSON 制造商全称:Ericsson 功能描述:Subscriber Line Interface Circuit |
| PBL386302SOSZE | 制造商:Infineon Technologies AG 功能描述:POTS |
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