USB6B1
Bidirectional TVSarray ™
S C O T T S D A L E D I V I S I O N
DESCRIPTION
APPEARANCE
This TRANSIENT VOLTAGE SUPPRESSOR (TVS) array is packaged in an SO-8
configuration giving protection to 1 pair of Bidirectional data lines and the Vbus. It is
designed for use in applications where protection is required at the board level from
voltage transients caused by electrostatic discharge (ESD) as defined in IEC 61000-
4-2, electrical fast transients (EFT) per IEC 61000-4-4 and effects of secondary
lightning.
These TVS arrays have a peak power rating of 500 watts for an 8/20 µsec pulse.
This array is suitable for protection of sensitive circuitry consisting of UNIVERSAL
SERIAL BUS (USB) I/O transceivers. The capacitance between the I/O data lines
are minimal to ensure no significant signal distortion or loss at the 12 megabit or
greater data rate. This feature allows full compatibility with USB port standards.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
SO–8
FEATURES
APPLICATIONS / BENEFITS
•
Protects each data line between Vbus supply and
•
EIA-RS485 data rates:
ground
5 Mbs
•
•
•
•
•
Complies with MIL-STD-883,Method 3015.7,class 3
Surge protection per IEC 61000-4-2, IEC 61000-4-4
Provides electrically isolated protection
UL 94V-0 Flamability Classification
LOW CAPACITANCE:
•
•
•
•
•
10 Base T Ethernet
USB date rate: 900 Mbs
Tape & Reel per EIA Standard 481
13 inch reel; 2,500 pieces (OPTIONAL)
Carrier tubes; 95 pcs (STANDARD)
14 pF (Data+ or Data- to ground) (typical)
7 pF (Data+ to Data-) (typical)
MAXIMUM RATINGS
MECHANICAL AND PACKAGING
•
•
•
•
Operating Temperature: -55°C to +150°C
Storage Temperature: -55°C to +150°C
Peak Pulse Power: 500 watts (8/20 µs, Figure 1)
Pulse Repetition Rate: < .01%
•
•
•
•
Molded SO-8 Surface Mount
Weight 0.066 grams (approximate)
Marking: Logo, device marking code, date code
Pin #1 defined by dot on top of package
ELECTRICAL CHARACTERISTICS
STAND OFF
VOLTAGE
VWM
BREAKDOWN
CLAMPING
VOLTAGE
VC
CLAMPING
VOLTAGE
VC
STANDBY
CURRENT
ID
CAPACITANCE
TEMPERATURE
COEFFICIENT
OF VBR
VOLTAGE
VBR
(f=1 MHz)
C
@0V
PART
DEVICE
@1 mA
@ 1 Amp
(Figure 2)
VOLTS
@ 5 Amp
(Figure 2)
VOLTS
@ VWM
αVBR
NUMBER
MARKING
Data + to Data -
pF
VOLTS
MAX
5.0
VOLTS
MIN
µA
MAX
5
mV/°C
MAX
3
MAX
10.8
MAX
18
MAX
10
USB6B1
USB6
6.0
Note: Transient Voltage Suppressor (TVS) product is normally selected based on its stand off voltage VWM. Product
selected voltage should be equal to or greater than the continuous peak operating voltage of the circuit to be
protected.
Copyright 2004
8-19-2004 REV J
Microsemi
Scottsdale Division
Page 1
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503