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USB50803C(-A) – USB50824C(-A)
Available
Bidirectional Low Capacitance TVS Array
DESCRIPTION
This USB50803C(-A) – USB50824C(-A) family of Transient Voltage Suppressor (TVS) arrays comes in an SO-8 package and can provide protection to 2 bidirectional data or interface lines. It is designed for use in applications where very low capacitance 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 secondary effects of lightning. Using the schematic on the last page, pins 1 & 2 are tied together for the first protected line, and pins 7 & 8 are tied together to ground. The same would occur for a second protected line where pins 3 & 4 tied together and pins 5 & 6 tied together to the ground. These connections may be switched in polarity since the electrical features are the same in each anti -parallel (opposite facing) leg when the pins are tied together in this manner for bidirectional protection. Th e device with an “-A” suffix is opposite in polarity for each pin-to-pin leg (see schematics). This provides no functional difference for bidirectional TVS protection with the noted pins tied together as described above. But the difference is significant if each leg is being used separately for unidirectional applications.
These TVS arrays have a peak power rating of 500 watts for an 8/20 sec pulse. This array is suitable for protection of sensitive circuitry such as TTL, CMOS DRAM’s, SRAM’s, HCMOS, HSIC microprocessors, Universal Serial Bus (USB) and I/O transceivers.
SO-8 Package
Also available:
Unidirectional version
USB50803 – USB50824
Important: For the latest information, visit our website http://www.microsemi.com.
FEATURES
• Provides electrically isolated protection for up to 2 bidirectional lines . • Surge protection per IEC 61000-4-2 and IEC 61000-4-4. • UL 94V-0 flammability classification. • Ultra low capacitance; 3 pF per line pair. • Ultra low leakage current. • RoHS compliant versions available.
MSC – Lawrence 6 Lake Street, Lawrence, MA 01841 Tel: 1-800-446-1158 or
(978) 620-2600 Fax: (978) 689-0803
APPLICATIONS / BENEFITS
• EIA-RS485 data rates: 5 Mbs • 10/100/1000 Base T Ethernet. • USB data rate: 900 Mbs
MSC – Ireland Gort Road Business Park, Ennis, Co. Clare, Ireland Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298 Website: www.microsemi.com
MAXIMUM RATINGS
Parameters/Test Conditions Junction and Storage Temp erature Peak Pulse Power @ 8/20 s (see figure 1) Impulse Repetition Rate Capacitance (f = 1 MHz) @ 0 V Solder Temperature @ 10 s
Symbol TJ and TSTG
PPP df C TSP
Value -55 to +150
500 < .01
3 260
Unit ºC W % pF oC
RF01092-1, Rev. C (11/24/20)
©2020 Microchip
Page 1 of 6
USB50803C(-A) – USB50824C(-A)
MECHANICAL and PACKAGING
• CASE: Molded SO-8 surface mount. • TERMINALS: Tin -lead or RoHS compliant annealed matte-tin plating. • MARKING: Logo, device marking code (see electrical characteristics table), date code. • POLARITY: Pin #1 marked by dot on top of package. • TAPE & REEL option: Per EIA standard 481. Consult factory for quantities. Carrier tubes with a quantity of 95 pieces are
s tan d ard . • WEIGHT: Approximately 0.066 grams. • See Package Dimensions on last page.
USB Rated Product
PPP Rating (x 100 W)
8 Pin Package
Rated Standoff Voltage (VWM)
(See Electrical Characteristics table)
PART NOMENCLATURE
USB 5 08 03 C -A e3
RoHS Compliance e3 = RoHS Compliant Blank = non-RoHS Compliant
Opposite polarity of Non-A suffix version in each leg
Bidirectional Designator
Symbol
VWM V(BR)
VC ID C
SYMBOLS & DEFINITIONS Definition
Stand Off Voltage: Maximum dc voltage that can be applied over the operating temperature range. Vwm must be selected to be equal or be greater than the operating voltage of the line to be protected. Minimum Breakdown Voltage: The minimum voltage the device will exhibit at a specified current Clamping Voltage: Maximum clamping voltage across the TVS device when subjected to a given current at a pulse time of 20 µs. Standby Current: Leakage current at VWM. Capacitance: Capacitance of the TVS as defined @ 0 volts at a frequency of 1 MHz and stated in picofarads.
RF01092-1, Rev. C (11/24/20)
©2020 Microchip
Page 2 of 6
USB50803C(-A) – USB50824C(-A)
ELECTRICAL CHARACTERISTICS
PART NUMBER
DEVICE MARKING*
STANDOFF
VOLTAGE VWM
Volts
BREAKDOWN VOLTAGE VBR @1 mA
Volts
CLAMPING VOLTAGE
VC @ 1 Amp (Figure 2)
Volts
CLAMPING VOLTAGE
VC @ 5 Amp (Figure 2)
Volts
STANDBY CURRENT
ID
@ VWM
CAPACITANCE (f = 1 MHz) C
@ 0V
TEMPERATURE COEFFICIENT OF VBR α VBR
µA
pF
mV/°C
USB50803C USB50803C-A USB50805C USB50805C-A USB50812C USB50812C-A USB50815C USB50815C-A USB50824C USB50824C-A
3C U3CA
5C U5CA 12C U12CA 15C U15CA 24C U24CA
MAX 3.3 5.0 12.0 15.0 24.0
MIN 4 6.0
13.3 16.7 26.7
MAX 8
10.8 19 24 43
MAX 11 13 26 32 57
MAX 200 40
1 1 1
MAX 3 3 3 3 3
MAX ±2.