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| Preliminary Data Sheet Monolithic, Low Capacitance DESCRIPTION: TVS Array l l l l l l l l l TVA8LCXXX Series The TVA8LC series of monolithic transient voltage suppressors are designed for applications where voltage transients, caused by electrostatic discharge (ESD) and other induced voltage surges, can permanently damage sensitive components. These TVS diodes are characterized by extremely LOW CAPACITANCE while at the same time retaining their HIGH SURGE capability, extremely FAST RESPONSE time and LOW dynamic resistance. The 8LC series consists of 8 monolithic bi-directional TVS diode arrays and is specifically designed to protect multiple or single data lines with each channel being electrically independent for multiple I/O port protection. This series will meet the surge requirements of IEC 1000-4-2 Level 4 (Formerly IEC 801-2), Human Body Model for air and contact discharge. MECHANICAL CHARACTERISTICS: JEDEC MS-012AA small outline package (SOP) or 16 pin DIP Solder temperature: 265oC for 10 seconds Readily solderable terminals ESD & surge protection for power lines & I/O ports TTL and MOS Bus Lines RS-232, RS-422 and RS-485 data lines High speed logic High speed data & video transmission APPLICATIONS: SCHEMATIC: FEATURES: l 500 watts Peak Pulse Power (TP = 8 x 20s) l Transient protection for data, signal, and Vcc bus to IEC 1000-4-2 (ESD) & IEC 1000-4-4 (EFT) l Protects up to 8 bi-directional lines l Standoff voltages from 5 to 15 volts l Low capacitance for high speed interfaces l Low clamping voltage l ESD protection > 15kV Maximum Ratings Peak Pulse Power...PPK TP = 8 x 20s Operating & Storage Temperature Range...TJ, TSTG Electrical Characteristics @ 25oC Reverse Stand-off Voltage Symbol Units TVA8LC05C TVA8LC08C TVA8LC12C VRWM Volts 5 8 12 Minimum Breakdown Voltage @ 1mA BV (min) Volts 6 8.5 13.3 Maximum Clamping Voltage @ Ipp=1A VC Volts 9.8 13.4 17.5 Maximum Clamping Voltage @ Ipp=10A VC Volts 12.5 16.6 23.5 ......................................... 500 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Units Watts .......................................... ......................................... -65 to 175 .......................................... C Leakage Current @ VRWM IR A 400 10 4 Maximum Capacitance @ 0V, 1MHz CJ pF 25 25 25 16.7 25.5 29.5 4 25 15 TVA8LC15C NOTE: Clamping voltage values are based upon an industry standard 8 x 20s peak pulse current (Ipp) waveform. Preliminary Data Sheet Monolithic, Low Capacitance TVS Array Peak Pulse Power vs Pulse Time 10 8 x 20 Impulse Waveform Ipp 91 0.5 x Ipp 11 1 0.1 0.01 0.1 8 20 1 10 100 1000 Pulse Duration (s) Time (s) Differential Mode: Eight lines may be protected differentially (line-to-line) by connecting Inputs/Outputs at pins 1 - 16. Common Mode: Bi-directional protection of eight lines is achieved by connecting Inputs/Outputs at pins 1 - 8. Pins 9 - 16 are connected to ground. Note: Device is symmetrical so connections may be reversed to serve a specific application. Typical Application (Data line protection) Line 1 thru 4 TVA8LCXXX Series Peak Pulse Current (%) Peak Pulse Power (kW) |
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