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uClamp0544P PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 uClamp0544P
기능 4-Line ESD Protection
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uClamp0544P 데이터시트, 핀배열, 회로
PROTECTION PRODUCTS - MicroClampTM
Description
The μClampTM series of TVS arrays are designed to pro-
tect sensitive electronics from damage or latch-up due
to ESD. It is designed to replace single line devices such
as multilayer varistors (MLVs) in space constrained ap-
plications such as cell phones, notebook computers, and
other portable electronics. It features large cross-sec-
tional area junctions for conducting high transient cur-
rents. TVS diodes offer desirable characteristics for
board level protection including fast response time, low
operating and clamping voltage, and no device degrada-
tion.
The μClampTM0544P is in a 10-pin, RoHS/WEEE compli-
ant, SLP2510P8 package. It measures 2.5 x 1.0 with
a nominal height of 0.58mm. The leads are spaced at
a pitch of 0.5mm and are finished with lead-free
NiPdAu. They are designed for easy PCB layout by
allowing the traces to run straight through the device.
Each device features four TVS diodes with an operat-
ing voltage of 5 volts and a maximum loading capaci-
tance of only 10pF.
They may be used to meet the ESD immunity require-
ments of IEC 61000-4-2, Level 4 (±15kV air, ±8kV
contact discharge). The combination of small size and
high ESD surge capability makes them ideal for use in
portable applications such as cellular phones, digital
cameras, and notebook computers.
uClamp0544P
μClampTM
4-Line ESD Protection
Features
‹ Transient protection for data lines to
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (tp = 5/50ns)
Cable Discharge Event (CDE)
‹ Ultra-small package
‹ Protects four data lines
‹ Low clamping voltage
‹ Working voltage: 5V
‹ Low capacitance (10pF)
‹ Solid-state silicon-avalanche technology
Mechanical Characteristics
‹ SLP2510P8 package
‹ RoHS/WEEE Compliant
‹ Nominal Dimensions: 2.5 x 1.0 x 0.58 mm
‹ Lead Finish: NiPdAu
‹ Molding compound flammability rating: UL 94V-0
‹ Marking : Marking code
‹ Packaging : Tape and Reel
Applications
‹ Cellular Handsets & Accessories
‹ Notebooks & Handhelds
‹ mp3 Players
‹ Cordless Phones
‹ Portable Instrumentation
‹ Digital Cameras
‹ Peripherals
Dimensions
Schematic
2.50
12
1.00
124 5
0.50 BSC
0.58
Nominal Dimensions (mm)
(SLP2510P8 Bottom View)
Revision 12/6/2008
3,8
Note: Pins 6, 7, 9, and 10 are not internally connected.
1 www.semtech.com




uClamp0544P pdf, 반도체, 판매, 대치품
uClamp0544P
PROTECTION PRODUCTS
Applications Information
Device Connection
This device is designed to protect four data lines. The
device is unidirectional and may be used on lines
where the signal polarity is above ground.
The uClamp0544P is designed such that the traces
flow straight through the device. This is accomplished
by using PCB traces to connect the pin pairs for each
line (pin 1 to pin 10, pin 2 to pin 9, pin 4 to pin 7, pin 5
to pin 6). For example, line 1 enters at pin 1 and exits
at Pin 10 and the PCB trace connects pin 1 and 10
together. This is true for lines connected at pins 2, 4,
and 5 also. Ground is connected at pins 3 and 8. One
large ground pad should be used in lieu of two sepa-
rate pads. Multiple ground vias are recommended in
order to reduce inductance in the ground path. This
will maximize the device’s effectiveness during an ESD
event.
Circuit Board Layout Recommendations for Suppres-
sion of ESD.
Good circuit board layout is critical for the suppression
of ESD induced transients. The following guidelines are
recommended:
z Place the TVS near the input terminals or connec-
tors to restrict transient coupling.
z Minimize the path length between the TVS and the
protected line.
z Minimize all conductive loops including power and
ground loops.
z The ESD transient return path to ground should be
kept as short as possible.
z Never run critical signals near board edges.
z Use ground planes whenever possible.
Circuit Diagram
124 5
3,8
Layout Example
1
Line 1 in
Line 2 in
GND
Line 3 in
Line 4 in
Line 1 Out
Line 2 Out
Line 3 Out
Line 4 Out
© 2008 Semtech Corp.
4
www.semtech.com

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uClamp0544P 전자부품, 판매, 대치품
PROTECTION PRODUCTS
Marking Code
PIN 1
INDICATOR
(LASER MARK)
UC544
Tape and Reel Specification
uClamp0544P
Ordering Information
Part Number
Working Qty per Reel
Voltage Reel Size
uClamp0544P.TCT 5V 3,000 7 Inch
Notes:
1) This is a lead-free, RoHS/WEEE compliant product
MicroClamp, uClamp and μClamp are marks of Semtech
Corporation
Pin 1 Location
User Direction of feed
A0 B0 K0
1.23 +/-0.10 mm 2.70 +/-0.10 mm 0.70 +/-0.10 mm
Device Orientation in Tape
Tape
Width
8 mm
B, (Max)
D
D1
4.2 mm
(.165)
1.5 + 0.1 mm
- 0.0 mm
(0.59 +.005
- .000)
0.8 mm
±0.05
(.031)
E
1.750±.10
mm
(.069±.004)
F
K
(MAX)
P
P0
P2 T(MAX) W
3.5±0.05
mm
(.138±.002)
2.4 mm
(.094)
4.0±0.1
mm
(.157±.00-
4)
4.0±0.1
mm
(.157±.00-
4)
2.0±0.05m-
m
(.079±.002)
0.4 mm
(.016)
8.0 mm
+ 0.3 mm
- 0.1 mm
(.312±.012)
Contact Information
Semtech Corporation
Protection Products Division
200 Flynn Rd., Camarillo, CA 93012
Phone: (805)498-2111 FAX (805)498-3804
© 2008 Semtech Corp.
7
www.semtech.com

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uClamp0544P

4-Line ESD Protection

Semtech Corporation
Semtech Corporation

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