RCLAMP3624T Datasheet, PDF (1/9 Pages) Semtech Corporation – ESD Protection for uUSB Interfaces Flow-Through design for easy layout

RClamp3624T
RailClamp^®
PROTECTION PRODUCTS - RailClamp^®
ESD Protection for uUSB Interfaces
Description
RailClamp^® TVS arrays are ultra low capacitance ESD
protection devices designed to protect high speed data
interfaces. This series has been specifically designed
to protect sensitive components which are connected
to data and transmission lines from overvoltage
caused by ESD (electrostatic discharge), CDE (Cable
Discharge Events), and EFT (electrical fast transients).
The RClamp^®3624T is specifically designed to protect
portable devices that utilize a uUSB port. The unique
design of this device features low capacitance TVS
diodes for protection of the USB data (DP, DM) and
USB ID pins operating up to 5 volts. Loading capaci-
tance on these lines is <1pF for maximum signal
integrity. An integrated 28 volt TVS diode is used for
protection of the USB voltage bus. This ensures the
device will remain in a high-impedance state during
normal USB operation or when the battery is being
charged. Leakage current of the VBus protection is
<250nA when operating at 28 volts.
The RClamp3624T is in a 6-pin SLP1710P4T package.
It measures 1.7 x 1.0 x 0.40mm. The leads are
spaced at a pitch of 0.4mm and are finished with lead-
free NiPdAu. They may be used to meet the ESD
immunity requirements of IEC 61000-4-2.
Features
‹ Transient protection for high-speed data lines to
IEC 61000-4-2 (ESD) ±18kV (air), ±12kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
‹ Array of surge rated diodes with internal TVS Diode
‹ Small package saves board space
‹ Flow-Through design for easy layout
‹ Protects USB DP, DM, and ID Pin operating to 5V
‹ Protects USB VBus operating up to 28V
‹ Low capacitance (<1pF) on DP, DM, and ID Pins
‹ No insertion loss to 2.0GHz
‹ Low leakage current
‹ Low clamping voltage
‹ Solid-state silicon-avalanche technology
Mechanical Characteristics
‹ SLP1710P4T 6L package
‹ Pb-Free, Halogen Free, RoHS/WEEE Compliant
‹ Nominal Dimensions: 1.7 x 1.0 x 0.40 mm
‹ Lead Finish: NiPdAu
‹ Molding compound flammability rating: UL 94V-0
‹ Marking : Marking code
‹ Packaging : Tape and Reel
Applications
‹ USB 2.0
‹ USB OTG
Circuit Diagram
PIN Configuration
2
3
4
5, 6
1
5V
28V
Revision 3/9/2011
1
VBus 1
DM
DP
ID
GND
GND
SLP (Top View)
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