PL IA NT CO M *R oH S A E075050 5 Features Applications ■ Superior circuit protection ■ Voice / VDSL cards ■ Overcurrent and overvoltage protection ■ Protection modules and dongles ■ Blocks surges up to rated limits ■ Process control equipment ■ High speed performance ■ Test and measurement equipment ■ Small SMT package ■ General electronics ■ Agency recognition: TBU-CA Series - TBU® High Speed Protectors General Information Agency Approval Line In/ The TBU-CA Series of Bourns® TBU® Line Out products are low capacitance single bidirectional high speed protection components, constructed using MOSFET semiconductor technology, and designed to protect against faults caused by short circuits, AC power cross, induction and lightning surges. Line Out/ Line In Description UL File Number: E315805 TBU® Device The TBU® high speed protector placed in the system circuit will monitor the current with the MOSFET detection circuit triggering to provide an effective barrier behind which sensitive electronics will not be exposed to large voltages or currents during surge events. The TBU® device is provided in a surface mount DFN package and meets industry standard requirements such as RoHS and Pb Free solder reflow profiles. Absolute Maximum Ratings (@ TA = 25 °C Unless Otherwise Noted) Symbol Value Unit Peak impulse voltage withstand with duration less than 10 ms TBU-CA025-xxx-WH TBU-CA040-xxx-WH TBU-CA050-xxx-WH TBU-CA065-xxx-WH TBU-CA085-xxx-WH 250 400 500 650 850 V Vrms Continuous A.C. RMS voltage TBU-CA025-xxx-WH TBU-CA040-xxx-WH TBU-CA050-xxx-WH TBU-CA065-xxx-WH TBU-CA085-xxx-WH 100 200 250 300 425 V Vimp Parameter Part Number Top Operating temperature range -40 to +125 °C Tstg Storage temperature range -65 to +150 °C Tjmax Maximum Junction Temperature ESD HBM ESD protection per IEC 61000-4-2 Asia-Pacific: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 • Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700 www.bourns.com *RoHS Directive 2002/95/EC Jan 27, 2003 including Annex. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. +125 °C ±2 kV TBU-CA Series - TBU® High Speed Protectors Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted) Symbol Itrigger Rdevice Parameter Part Number Min. Typ. Max. Unit Current required for the device to go from operating state to protected state TBU-CAxxx-050-WH TBU-CAxxx-100-WH TBU-CAxxx-200-WH TBU-CAxxx-300-WH TBU-CAxxx-500-WH 50 100 200 300 500 75 150 300 450 750 100 200 400 600 1000 mA Series resistance of the TBU device Vimp = 250 V Vimp = 250 V Vimp = 250 V Vimp = 250 V Vimp = 250 V Itrigger (min.) = 50 mA Itrigger (min.) = 100 mA Itrigger (min.) = 200 mA Itrigger (min.) = 300 mA Itrigger (min.) = 500 mA TBU-CA025-050-WH TBU-CA025-100-WH TBU-CA025-200-WH TBU-CA025-300-WH TBU-CA025-500-WH 13.3 7.1 4.2 3.2 2.6 15.3 8.2 4.8 3.8 3.0 Vimp = 400 V Vimp = 400 V Vimp = 400 V Vimp = 400 V Vimp = 400 V Itrigger (min.) = 50 mA Itrigger (min.) = 100 mA Itrigger (min.) = 200 mA Itrigger (min.) = 300 mA Itrigger (min.) = 500 mA TBU-CA040-050-WH TBU-CA040-100-WH TBU-CA040-200-WH TBU-CA040-300-WH TBU-CA040-500-WH 14.3 8.1 5.2 4.3 3.6 16.5 9.4 6.0 5.0 4.2 Vimp = 500 V Vimp = 500 V Vimp = 500 V Vimp = 500 V Vimp = 500 V Itrigger (min.) = 50 mA Itrigger (min.) = 100 mA Itrigger (min.) = 200 mA Itrigger (min.) = 300 mA Itrigger (min.) = 500 mA TBU-CA050-050-WH TBU-CA050-100-WH TBU-CA050-200-WH TBU-CA050-300-WH TBU-CA050-500-WH 15.7 9.5 6.6 5.6 5.0 18.0 10.9 7.5 6.5 5.7 Vimp = 650 V Vimp = 650 V Vimp = 650 V Vimp = 650 V Vimp = 650 V Itrigger (min.) = 50 mA Itrigger (min.) = 100 mA Itrigger (min.) = 200 mA Itrigger (min.) = 300 mA Itrigger (min.) = 500 mA TBU-CA065-050-WH TBU-CA065-100-WH TBU-CA065-200-WH TBU-CA065-300-WH TBU-CA065-500-WH 17.7 11.5 8.6 7.6 7.0 20.3 13.2 9.8 8.8 8.0 Vimp = 850 V Vimp = 850 V Vimp = 850 V Vimp = 850 V Vimp = 850 V Itrigger (min.) = 50 mA Itrigger (min.) = 100 mA Itrigger (min.) = 200 mA Itrigger (min.) = 300 mA Itrigger (min.) = 500 mA TBU-CA085-050-WH TBU-CA085-100-WH TBU-CA085-200-WH TBU-CA085-300-WH TBU-CA085-500-WH 21.4 15.2 12.3 11.3 10.7 24.5 17.4 14.0 13.0 12.2 1 µs 0.25 0.50 1.00 mA 12 16 20 Ω tblock Time for the device to go from normal operating state to protected state IQ Current through the triggered TBU® device with 50 Vdc circuit voltage Vreset Voltage below which the triggered TBU® device will transition to normal operating state Rth(j-l) Junction to package pads - FR4 using recommended pad layout 98 °C/W Rth(j-l) Junction to package pads - FR4 using heat sink on board (6 cm2) (1 in2) 40 °C/W V Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. TBU-CA Series - TBU® High Speed Protectors Reference Application Basic TBU Operation ® The TBU devices are general use protectors used in a wide variety of applications. The maximum voltage rating of the TBU® device should never be exceeded. Where necessary, an OVP should be employed to limit the maximum voltage. A costeffective protection solution combines Bourns® TBU® protection devices with a pair of Bourns® MOVs. For bandwidth sensitive applications, a Bourns® GDT may be substituted for the MOV. Line In / Line Out Line Out / Line In Line TBU TM Device OVP TBU TM Device OVP Equip. Line In / Line Out Line Out / Line In Line The TBU® device, constructed using MOSFET semiconductor technology, placed in the system circuit will monitor the current with the MOSFET detection circuit triggering to provide an effective barrier behind which sensitive electronics are not exposed to large voltages or currents during surge events. The TBU® device operates in approximately 1 µs - once line current exceeds the TBU® device’s trigger current Itrigger. When operated, the TBU® device restricts line current to less than 1 mA typically. When operated, the TBU® device will block all voltages including the surge up to rated limits. After the surge, the TBU® device resets when the voltage across the TBU® device falls to the Vreset level. The TBU® device will automatically reset on lines which have no DC bias or have DC bias below Vreset (such as unpowered signal lines). If the line has a normal DC bias above Vreset, the voltage across the TBU® device may not fall below Vreset after the surge. In such cases, special care needs to be taken to ensure that the TBU® device will reset, with software monitoring as one method used to accomplish this. Bourns application engineers can provide further assistance. Performance Graphs Typical V-I Characteristics (TBU-CA050-300-WH) Typical Trip Current vs. Temperature 1.8 Normalized Trip Current (A) ITRIP CURRENT (100 mA/div) VRESET VOLTAGE (5 V/div) 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -75 -50 -25 0 25 50 75 100 125 150 Junction Temperature (°C) Power Derating Curve Typical Resistance vs. Temperature 2.2 3.0 Normalized Resistance (Ω) No Additional PCB Cu 0.5 sq. in. Additional PCB Cu Total Max. Power (W) 2.5 2.0 1.5 1.0 0.5 0.0 20 40 60 80 100 120 140 Junction Temperature (°C) Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -75 -50 -25 0 25 50 75 100 125 150 Junction Temperature (°C) TBU-CA Series - TBU® High Speed Protectors Product Dimensions 0.70 (.028) 0.80 (.031) 0.70 (.028) 1.85 (.073) 6.50 ± 0.10 (.256 ± .004) 0.85 ± 0.05 (.033 ± .002) 0.30 (.012) 4.00 ± 0.10 (.157 ± .004) 1.85 (.073) 3.40 (.134) 0.30 (.012) PIN 1 & BACKSIDE CHAMFER C Pad Designation 0.00 - 0.05 (.000 - .002) DIMENSIONS: 0.25 PIN 1 (.010) Pad # Pin Out 1 Line In/Out MM (INCHES) 2 NU 3 Line Out/In Thermal Resistance vs Additional PCB Cu Area TBU® protectors have matte-tin termination finish. The suggested layout should use Non-Solder Mask Define (NSMD). The recommended stencil thickness is 0.10-0.12 mm (.004.005 in.) with a stencil opening size 0.025 mm (.0010 in.) less than the device pad size. As when heat sinking any power device, it is recommended that wherever possible, extra PCB copper area is allowed. For minimum parasitic capacitance, do not allow any signal, ground or power signals beneath any of the pads of the device. 120 Thermal Resistance (°C/W) Recommended Pad Layout 100 80 60 40 20 0 3 2 1 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Added Cu Area (Sq. In.) Dark grey areas show added PCB copper area for better thermal resistance. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. TBU-CA Series - TBU® High Speed Protectors Reflow Profile Profile Feature Pb-Free Assembly Average Ramp-Up Rate (Tsmax to Tp) 3 °C/sec. max. Preheat - Temperature Min. (Tsmin) - Temperature Max. (Tsmax) - Time (tsmin to tsmax) 150 °C 200 °C 60-180 sec. Time maintained above: - Temperature (TL) - Time (tL) 217 °C 60-150 sec. Peak/Classification Temperature (Tp) 260 °C Time within 5 °C of Actual Peak Temp. (tp) 20-40 sec. Ramp-Down Rate 6 °C/sec. max. Time 25 °C to Peak Temperature 8 min. max. How to Order Typical Part Marking TBU - CA 085 - 500 - WH MANUFACTURER’S TRADEMARK ® TBU Product PRODUCT CODE - 1ST DIGIT INDICATES PRODUCT FAMILY: A = TBU-CA SERIES - 2ND & 3RD DIGITS INDICATE IMPULSE VOLTAGE: 25 = 250 V 40 = 400 V 50 = 500 V 65 = 650 V 85 = 850 V Series CA = Bi-Series Impulse Voltage Rating 025 = 250 V 040 = 400 V 050 = 500 V 065 = 650 V 085 = 850 V Trigger Current 050 = 50 mA 100 = 100 mA 200 = 200 mA 300 = 300 mA 500 = 500 mA Hold to Trip Ratio Suffix W = Hold to Trip Ratio Package Suffix H = DFN Package Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. - 4TH & 5TH DIGITS INDICATE TRIGGER CURRENT: 05 = 50 mA 10 = 100 mA 20 = 200 mA 30 = 300 mA 50 = 500 mA PIN 1 MANUFACTURING DATE CODE - 1ST DIGIT INDICATES THE YEAR’S 6-MONTH PERIOD. - 2ND DIGIT INDICATES THE WEEK NUMBER IN THE 6-MONTH PERIOD. - 3RD & 4TH DIGITS INDICATE SPECIFIC LOT FOR THE WEEK. 6-MONTH PERIOD CODES: A = JAN-JUN 2009 C = JAN-JUN 2010 B = JUL-DEC 2009 D = JUL-DEC 2010 E = JAN-JUN 2011 F = JUL-DEC 2011 TBU-CA Series - TBU® High Speed Protectors Packaging Specifications P0 E D t B P2 TOP COVER TAPE A N F W C D B0 K0 CENTER LINES OF CAVITY A0 P D1 EMBOSSMENT G (MEASURED AT HUB) USER DIRECTION OF FEED QUANTITY: 3000 PIECES PER REEL A Min. 326 (12.835) B Max. 330 (13.002) Min. 1.5 (.059) A0 Min. 4.3 (.169) B0 Max. 4.5 (.177) Min. 6.7 (.264) Max. 1.2 (.047) Min. 7.9 (.311) K0 Min. 1.0 (.039) C Max. 2.5 (.098) Min. 12.8 (.504) D Max. 13.5 (.531) D Max. 6.9 (.272) Min. 1.5 (.059) Max. 8.1 (.319) Min. 3.9 (.159) P Min. 20.2 (.795) - D1 Max. 1.6 (.063) Min. 1.5 (.059) Max. 4.1 (.161) Min. 1.9 (.075) P0 G Ref. 16.5 (.650) Max. E Max. - Min. 1.65 (.065) P2 F Max. 1.85 (.073) Min. 7.4 (.291) Max. 0.35 (.014) Min. 15.7 (.618) t Max. 2.1 (.083) Min. 0.25 (.010) N Ref. 102 (4.016) max. 7.6 (.299) W Max. 16.3 (.642) DIMENSIONS: MM (INCHES) REV. 12/16/10 “TBU” is a registered trademark of Bourns, Inc. in the U.S., Taiwan and European Community. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.