17

xDSL ModemRouter
Table of Contents
DC/DC Buck Converter, Control.......................................................................................................................................3
DC/DC Buck Converter, Energy Storage......................................................................................................................... 4
DC/DC Buck Converter, Switch........................................................................................................................................ 5
Peripheral Circuits, Control Lights.................................................................................................................................. 6
Peripheral Circuits, External Connections......................................................................................................................7
Peripheral Circuits, WLAN-Module.................................................................................................................................. 8
Power Supply, CPU/DSP Power Supply.......................................................................................................................... 9
Power Supply, I/O or Memory Power............................................................................................................................. 12
page 1
xDSL ModemRouter
VISHAY components used for xDSL Modems/Routers include:
• Power IC Controllers
• Power MOSFETS
• Switching Diodes
• Schottky Diodes
• Capacitors
• Resistors
• Visible LEDS
• Inductors/EMI Filters
• Transient/Overvoltage Protection Devices
• ESD Protection Devices
• LDOs
Application Overview
xDSL Modem/Router Design is separated into two segments: Power and Peripheral. The Power Segment involves
supplying hardware device power sources. The first step is to convert the working voltage to a usable range and stability
by applying switching mode dc-to-dc Buck Converters with high efficiency and high current capability. Another voltage
conversion is done for the the key power sources such as CPUs and DSPs. For the I/O parts and Memory Power,
Low-Dropout Regulators or Linear Regulation is generally used as a solution because of their lower prices and simple
circuitry. The Peripheral Segment can be regarded as a low-power segment. It includes USB Ports, External Connections,
Wireless Transmission such as WLAN, and Control Lights. Some of these need similar functions such as ESD protection,
current limiting, or load switching.
page 2
xDSL ModemRouter : DC/DC Buck Converter, Control
Current Sensing
Product Name
Status
WSL1206
Description
Power metal strip resistor
Features
10mR 0.25W 1%
Package
Q-Level
1206
Feedback
Product Name
Status
Description
Features
Package
IL207AT
Optocoupleur, phototransistor output
Single channel
SOIC-8
ILD207T
Optocoupleur, phototransistor output
Dual channel
DIP-8
Q-Level
page 3
xDSL ModemRouter : DC/DC Buck Converter, Energy Storage
Shielded Power Inductors
Product Name
Status
Description
Features
Package
IHLP-2525-AH
High current, low profile inductors;
low DCR; Shielded;
1µH 7A dcr = 17.5 mR
SMD
6.5×6.9×1.8mm
IHLP2525CZ
High current, low profile inductors;
2.2µH 8A dcr=18mR
SMD
6.5×6.9×3.0mm
Q-Level
page 4
xDSL ModemRouter : DC/DC Buck Converter, Switch
High Side
Product Name
Si4174DY
Status
NEW
Description
N-Channel 30-V (D-S) Mosfet
Features
N-Channel; 30-V (D-S);
rDS(on) = 0.0095 Ohm;
Package
Q-Level
SMD
SO-8
Low Side
Product Name
Si4166DY
Status
NEW
Description
N-Channel 30-V (D-S) Mosfet
Features
N-channel 30V
rDSon= 0.0039 Ohm
ID=30.5 A
Package
Q-Level
SO-8
page 5
xDSL ModemRouter : Peripheral Circuits, Control Lights
LED's
Product Name
Status
Description
Features
Package
TLM*10**
low illuminate, low current LED;
0603 package;
0603;
Iuminous idensity 4-8mcd
SMD
0603
TLM*11**
0603 package High illuminate LED
0603;
Iuminous idensity 5-80mcd
SMD
0603
Q-Level
page 6
xDSL ModemRouter : Peripheral Circuits, External Connections
ESD Protection
Product Name
Status
Description
Features
Package
GSOT03
single line esd protection
30kV ESD
sot23
GSOT05
single line esd protection
30kV ESD
sot23
Q-Level
page 7
xDSL ModemRouter : Peripheral Circuits, WLAN-Module
Load switch
Description
Features
SI2301CDS
Product Name
Status
P-Channel 20V (D-S) Mosfet
VDS= 20V
rDSon= 0.112 ohm
ID= -3.1
TO-236
(SOT-23)
Package
SI2305CDS
P-Channel MOSFET, 1.8V(G-S) , -8V(D-
RDSon=65mOhm
ID=-4.3A VGS=-1.8V
sot23
Q-Level
page 8
xDSL ModemRouter : Power Supply, CPU/DSP Power Supply
Dual MOSFETs
Product Name
Status
Description
Features
Package
Si4214DDY
Dual N-Channel 30-V (D-S) MOSFET
rDS(on) = 0.0195 Ohm;
Qgd=7.1nC
SMD
SO-8
Si4830CDY
Dual N-Channel; 30-V (D-S) Mosfet
plus Schottky Diode
rDS(on) = 0.020 Ohm;
Qgd=7.3nC
SMD
SO-8
Si4834BDY
Dual N-Ch. mosfet plus Schottky diode;
N-Channel; 30-V (D-S);
rDS(on) = 0.022 Ohm;
Qgd=2.5nC
SMD
SO-8
Si4914DY
Dual N-Ch. MOSFET plus Schottky diode,
N-Channel; 30-V (D-S);
rDS(on) = 0.022 Ohm;
Qgd=2.3nC
SMD
SO-8
Dual N-Channel; 30-V (D-S) MOSFET
TrenchFET
rDS(on) = 0.021 Ohm;
Qgd= 6.6
SMD
PPAK SO-8
Si7270DP
NEW
Q-Level
High Sid MOSFETs
Product Name
Si4178DY
Status
NEW
Description
N-Channel 30-V (D-S) Mosfet
Features
TrenchFET
RDS(on)= 0.021 Ohm
Qgd= 3.7nC
Package
Q-Level
SO-8
High Side MOSFETs
Product Name
Status
Description
Features
Package
Si4134DY
N-Channel; 30-V (D-S) Mosfet
rDS(on) = 0.014 Ohm;
Qgd=7.3nC
SMD
SO-8
Si4162DY
N-Channel 30V-( D-S) MOSFET
N-Channel; 30-V (D-S);
rDS(on) = 0.0079 Ohm;
Qg=8.8 nC
SMD
SO-8
Si4174DY
NEW
N-Channel; 30-V (D-S) Mosfet
TrenchFET
rDS(on) = 0.0095 Ohm;
Qgd= 8nC
SMD
SO-8
Si4174DY
NEW
N-Channel 30-V (D-S) Mosfet
Extr.Low Switching Loss
TrenchFET
rDS(on) = 0.0095 Ohm;
Qgd= 8nC
SMD
SO-8
Si4178DY
NEW
N-Channel 30-V (D-S) Mosfet
rDS(on) = 0.021 Ohm;
Qgd=3.7nC
SMD
SO-8
N-Ch. Reduced Qg, Fast Switching WFET;
Extr.Low Switching Loss
N-Channel; 30-V (D-S);
rDS(on) = 0.0094 Ohm;
Qgd=2.8nC
SMD
SO-8
N-Ch. Reduced Qg, Fast Switching WFET;
Extr.Low Switching Loss
N-Channel; 30-V (D-S);
rDS(on) = 0.0095 Ohm;
Qgd=2.8nC
SMD
SO-8
Si4812BDY
N-Ch. Reduced Qg, Fast Switching
MOSFET
N-Channel; 30-V (D-S);
rDS(on) = 0.021 Ohm;
Qgd=2.1nC
SMD
SO-8
Si7230DN
N-Ch. Reduced Qg, Fast Switching
MOSFET
smaller package;
N-Channel; 30-V (D-S);
rDS(on) = 0.016 Ohm;
Qgd=4.3nC
SMD
PowerPAK 1212
SiR172DP
N-Channel 30-V (D-S);MOSFET;
TrenchFET
rDS(on) = 0.0089 Ohm;
Qgd=9.8nC
SMD
PPAK SO-8
SiR462DP
N-Channel; 30-V (D-S) MOSFET
rDS(on) = 0.0079 Ohm;
Qg=8.8nC
SMD
PPAK SO-8
SiS402DN
N-Channel; 30-V (D-S) MOSFET
rDS(on) = 0.006 Ohm;
Qgd=12nC
SMD
PPAK 1212-8
N-Channel; 30-V (D-S) MOSFET;
rDS(on) = 0.024 Ohm;
SMD
Si4684DY
Si4686DY
SiS412DN
NEW
NEW
Q-Level
page 9
Product Name
Status
Description
Features
Qgd=3.8nC
Package
Q-Level
PPAK 1212-8
Low Side MOSFETs
Product Name
Status
Si4156DY
Si4160DY
NEW
Si4162DY
Description
Features
Package
N-Channel 30-V (D-S) MOSFET
rDS(on) = 0.006 Ohm;
SMD
SO-8
N-Channel 30-V (D-S) MOSFET
N-Channel; 30-V (D-S);
rDS(on) = 0.0049 Ohm;
SMD
SO-8
N-Channel 30-V (D-S)MOSFET
TrenchFET
rDS(on) = 0.0079 Ohm;
Qg=18nC
SMD
SO-8
Si4164DY
NEW
N-Channel 30V(D-S) MOSFET
TrenchFET
rDS(on) = 0.0032 ohm
Qgd= 26.5nC
SMD
SO-8
Si4174DY
NEW
N-Channel 30-V (D-S) Mosfet
N-Channel; 30-V (D-S);
rDS(on) = 0.0095 Ohm;
Qgd=8 nC
SMD
SO-8
Si4178DY
NEW
N-Channel 30-V (D-S) Mosfet
N-Channel; 30V-(D-S)
rDS(on)=0.021 ohm
ID= 12a
SO-8
Si4634DY
N-Channel MOSFET; Reduced Rds;
Extr.Low Switching Loss
N-Channel; 30-V (D-S);
rDS(on) = 0.0067 Ohm;
SMD
SO-8
Si4686DY
N-Ch. Reduced Qg, Fast Switching WFET;
Extr.Low Switching Loss
N-Channel; 30-V (D-S);
rDS(on) = 0.0095 Ohm;
Qgd=2.8nC
SMD
SO-8
Si4800BDY
N-Channel MOSFET; Reduced Rds;
N-CH,30V,Rds
on=0.03Ohm,
SO-8
Si4812BDY
N-Channel Reduced Rds
N-Channel; 30-V (D-S);
rDS(on) = 0.016 Ohm;
SMD
SO-8
N-Channel 30-V (D-S) Mosfet
rDS(on) = 0.0075 Ohm;
Qgd=12nC
SMD
PPAK 1212-8
N-Channel MOSFET;Reduced Rds
N-Channel; 30-V (D-S);
rDS(on) = 0.0052 Ohm;
SMD
PPAK SO-8
Si7114ADN
NEW
Si7634BDP
Si7716ADN
NEW
N-Channel 30-V (D-S) Mosfet
TrenchFET Gen III
rDS(on) = 0.0135 Ohm;
Qgd=7.3nC
SMD
PPAK 1212-8
SiR466DP
NEW
N-Channel 30-V (D-S) MOSFET
TrenchFET
rDS(on) = 0.0035 Ohm;
Qgd= 21.5nC
SMD
PPAK SO-8
SiR818DP
N-Channel 30-V (D-S) Mosfet
rDS(on) = 0.0028 Ohm;
Qgd = 30.5nC
SMD
PPAK SO-8
SiS402DN
N-Channe; 30-V (D-S) Mosfet
rDS(on) = 0.006 Ohm;
Qgd=12nC
SMD
PPAK 1212-8
N-Channel 30-V (D-S) Mosfet
Ex
rDS(on) = 0.024 Ohm;
Qgd=3.8nC
SMD
PPAK 1212-8
SiS412DN
NEW
Q-Level
Resistors
Product Name
Status
Description
Features
Package
WSL0805
small resistance, high power
1/8 W POWER;
R=0.01 to 0.2 Ohm;
SMD
0805
WSL2010-18
small resistance, high power
2010 size, Up to 1w power
SMD 2010
WSL2512-18
small resistance, high power
2512 size,up to 2w POWER
SMD 2512
Q-Level
Schottky Diodes
Product Name
B140
Status
Description
low VF , low leakage current.
Features
10A; 40V;
Package
Q-Level
SMD
SMA
page 10
Product Name
Status
Description
Features
Package
B240A
low VF , low leakage current.
20A; 40V;
SMD
SMA
B340A
low VF , low leakage current.
30A,40V;
SMD
SMA
SS1P4
Schottky Diodes;
low leakage current;
small Package;
10,40V
SMP
SS2P4
Schottky Diodes;
low VF; low leakage current;
small Package;
20A,40V
SMP
SS3P4
Schottky Diodes;
low VF; low leakage current;
small Package;
30A, 40V
SMP
Q-Level
Shielded Power Inductors
Product Name
IHLP1616-01
Status
NEW
Description
Features
Package
High current, low profile inductor
low DCR; Shielded;
Rated current up to 11A.
SMD
IHLP2525CZ-01
High current, low profile inductors;
low DCR; Shielded;
Rated current up to 25A,
SMD
IHLP4040DZ-01
High current, low profile inductors;
low DCR; Shielded;
up to 100uH;
IDC up to 40A;
SMD
IHLP4040DZ-11
High current, low profile inductors;
low DCR; Shielded;
up to 100uH;
IDC up to 40A;
SMD
Q-Level
Switching Diode
Product Name
Status
Description
Features
Package
1N4148WS-V
Small signal fast switching diodes;
500mA current, Vf=1.0 V;
Vrrm=75 V;
SMD
SOD-323
BAT54A-V
Small Signal Schottky Diodes;
Single & Dual;
rated current 200mA;
VR 30v, Vf=0.32
SMD
SOT-23
BAT54W-V
Small Signal Schottky Diode; Single;
rated current 200mA;
VR 30v, Vf=0.32
SMD
SOD123
BAV99-V
Small Signal Fast Switching Diodes;
rated current 50 mA;
Vrrm 70 V;
SMD
SOT-23
Q-Level
page 11
xDSL ModemRouter : Power Supply, I/O or Memory Power
Signal MOSFET
Product Name
2N7002K
Status
Description
N-Ch; 60V (DS) MOSFET;
add ESD protect function
Features
60v (DS); Small current
Package
Q-Level
SMD
SOT-23
page 12
page 13