SM712 Series 600W Asymmetrical TVS Diode Array

Transcription

1 SM712 Series 6W Asymmetrical TVS Diode Array RoHS Pb GREEN Description The SM712 TVS Diode Array is designed to protect RS-485 applications with asymmetrical working voltages (-7V to 12V from damage due to electrostatic discharge (ESD, electrical fast transients (EFT, and lightning induced surges. The SM712 can absorb repetitive ESD strikes above the maximum level specified in the IEC international standard without performance degradation and safely dissipate up to 19A of 8/2us induced surge current (IEC nd edition with very low clamping voltages. Pinout and Functional Block Diagram Features 2 12V 7V 12V 7V 1 RoHS compliant and lead-free ESD, IEC , ±3kV contact, ±3kV air EFT, IEC , 5A (5/5ns Lightning, IEC nd edition, 19A (t P =8/2μs Working Voltages: -7V to 12V Low clamping voltage Low leakage current AEC-Q11 Qualified Moisture Sensitivity Level (MSL-1 Life Support Note: Not Intended for Use in Life Support or Life Saving Applications The products shown herein are not designed for use in life sustaining or life saving applications unless otherwise expressly indicated. 3 Applications RS-485 Fieldbus Modbus Profibus DMX512 RS-485 Application Example Security Systems AutomatedT eller Machines (ATMs Lighting Control - DALI Communication Equipments Additional Information RS-485 Port Receiver A B Datasheet Resources Samples IC SM712 GND

2 Absolute Maximum Ratings Symbol Parameter Value Units P Pk Peak Pulse Power (t p =8/2μs 6 W Peak Pulse Current (t p =8/2μs 19 A T OP Operating Temperature -4 to 125 C T STOR Storage Temperature -55 to 15 C Notes: CAUTION: Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the component. This is a stress only rating and operation of the component at these or any other conditions above those indicated in the operational sections of this specification is not implied. SM712 Electrical Characteristics (T OP =25ºC Parameter Symbol Test Conditions Min Typ Max Units 1μA, Pin 3 to Pin 1 or Pin 2 7. V Reverse Standoff Voltage WM 1μA, Pin 1 or Pin 2 to Pin V Reverse Breakdown Voltage =1mA, Pin 3 to Pin 1 or Pin V =1mA, Pin 1 or Pin 2 to Pin V =7V 2 μa Leakage Current I LEAK =12V 1 μa =1A, t p =8/2µs, Pin 1 or Pin 2 to Pin 3 19 V I Clamp Voltage 1 PP =1A, t p =8/2µs, Pin 3 to Pin 1 or Pin 2 11 V V C =19A, t p =8/2µs, Pin 1 or Pin 2 to Pin 3 31 V =19A, t p =8/2µs, Pin 3 to Pin 1 or Pin 2 19 V Dynamic Resistance 1 R DYN (V C2 - V C1 / (2-1.5 Ω ESD Withstand Voltage 1 V ESD IEC (Contact Discharge ±3 kv IEC (Air Discharge ±3 kv Diode Capacitance 1 C I/O-GND Reverse Bias=V, f=1mhz; Pin 1 or Pin 2 to Pin 3 75 pf Notes : 1. Parameter is guaranteed by design and/or device characterization. Capacitance vs. Reverse Bias Clamping Voltage vs Capacitance (pf Clamp Voltage (VC Pin 1 or Pin 2 to Pin 3 Pin 3 to Pin1 or Pin Bias Voltage (V Peak Pulse Current-IPP (A

3 Temperature TVS Diode Arrays (SPA Diodes Non-Repetitive Peak Pulse Power vs. Pulse Time Power Derating Curve Peak Pulse Power - P pk (kw Pulse Duration - tp (µs % of Rated Power Ambient Temperature - TA ( o C Pulse Waveform 11% 1% 9% 8% Percent of 7% 6% 5% 4% 3% 2% 1% % Time (μs Soldering Parameters Reflow Condition - Temperature Min (T s(min 15 C Pb Free assembly T P Ramp-up t P Critical Zone TL to TP Pre Heat - Temperature Max (T s(max 2 C - Time (min to max (t s 6 18 secs Average ramp up rate (Liquidus Temp (T L to peak T S(max to T L - Ramp-up Rate 3 C/second max 3 C/second max T L T S(max T S(min t S Preheat t L Ramp-down Reflow - Temperature (T L (Liquidus 217 C - Temperature (t L 6 15 seconds 25 time to peak temperature Time Peak Temperature (T P 26 +/-5 C Time within 5 C of actual peak Temperature (t p 2 4 seconds Ramp-down Rate 6 C/second max Time 25 C to peak Temperature (T P 8 minutes Max. Do not exceed 26 C

4 Part Marking System Part Numbering System SM H T G 712 TVS Diode Arrays (SPA Diodes Series Working Voltage Number of Channels G= Green T= Tape & Reel Package H: SOT23-3 Ordering Information Part Number Package Marking Min. Order Qty. SM712-2HTG SOT Package Dimensions SOT23-3 b 3 Package SOT23-3 Pins 3 52B E1 E Recommended Pad Layout JEDEC Millimeters TO-236 Inches 1 2 e e1 P M Min Max Min Max A D A P M A b N c C A1 L1 N D E E e.95 BSC.38 BSC e1 1.9 BSC.75 BSC L1.54 REF.21 REF M N O.78.3TYP P.78.3TYP

5 Embossed Carrier Tape & Reel Specification SOT23-3 ACCESS HOLE 14.4mm 13mm 18mm 6mm 8.4mm 8mm TAPE AND REEL GENERAL INFORMATION 1. 3 PIECES PER REEL. 2. ORDER IN MULTIPLES OF FULL REELS ONLY. 3. MEETS EIA-481 REVISION "A" SPECIFICATIONS. SOT23-3 (8mm POCKET PITCH USER DIRECTION OF FEED PIN 1 Millimetres Inches Symbol Min Max Min Max E F P D P W P A B K t COVER TAPE Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at