PL IA NT
Features
■ Superior circuit protection ■ Overcurrent & overvoltage protection ■ Blocks surges up to rated limits ■ High speed performance ■ Small SMT package ■ RoHS compliant* ■ Agency recognition:
Applications
■ SLIC protection ■ Cable & DSL ■ MDU/MTU modems ■ ONT ■ Voice/DSL line cards
*R oH S
CO M
L50 C954 1
TBU-PL Series - TBU® High Speed Protectors
General Information
The TBU-PL Series of Bourns® TBU® products are low capacitance dual 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. In addition to overcurrent protection, an added feature is the voltage monitoring on the two lines. If the voltage on the line drops below Vss then the voltage will trigger the device to switch to the blocking state. 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.
Vdd Line 1 SLIC Line 1
Line 2 SLIC
Line 2
Vss TBU ® Device
Agency Approval
Description UL File Number: E315805
Industry Standards (in Conjunction with OVP Device)
Solutions available for GR-1089-CORE, ITU-T and a combination of both.
Absolute Maximum Ratings (@ TA = 25 °C Unless Otherwise Noted)
Symbol Vimp Parameter Peak impulse voltage withstand with duration less than 10 ms Part Number TBU-PL050-xxx-WH TBU-PL060-xxx-WH TBU-PL075-xxx-WH TBU-PL085-xxx-WH TBU-PL050-xxx-WH TBU-PL060-xxx-WH TBU-PL075-xxx-WH TBU-PL085-xxx-WH Value 500 600 750 850 300 350 400 425 -55 to +125 -65 to +150 +125 ±2 Unit V
Vrms Top Tstg Tjmax ESD
Continuous A.C. RMS voltage Operating temperature range Storage temperature range Maximum Junction Temperature HBM ESD Protection per IEC 61000-4-2 on line pads
V °C °C °C kV
Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted)
Symbol Itrigger Rdevice Rmatch tblock IQ Iss Vreset Vto Vss Rth(j-l) Rth(j-l) Parameter Part Number Current required for the device to go from operating state to TBU-PLxxx-100-WH protected state TBU-PLxxx-200-WH Series resistance of the TBU® device Package resistance matching of the TBU® device #1 - TBU® device #2 Time taken for the device to go into current limiting Current through the triggered TBU® device with 50 Vdc circuit voltage Operating current with Vss = -50 V Voltage below which the triggered TBU® device will TBU-PLxxx-100-WH transition to normal operating state TBU-PLxxx-200-WH Voltage threshold offset with 60 Hz applied voltage, with Vss -50 V (Vss - VlineSLIC) Operating voltage range relative to Vdd Junction to package pads - FR4 using minimum recommended pad layout Junction to package pads - FR4 using heat sink on board (6 cm2) (0.5 in.2) Min. 100 200 40 Typ. 150 300 50 ±0.5 0.70 100 15 20 Max. 200 400 55 ±1.0 1 1.50 22 25 0.2 -20 Unit mA Ω Ω µs mA µA V V V °C/W °C/W
0.25 12 15 -1.0 -180
65 40
*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.
TBU-PL Series - TBU® High Speed Protectors
Functional Block Diagram
Line 1 SLIC CURRENT SENSE Vdd
HIGH VOLTAGE SWITCH
Line 1
+
VOLTAGE COMPARATOR
Vss
Vss
Vdd
Vdd VOLTAGE COMPARATOR
Vss CURRENT SENSE
+
Line 2 SLIC
HIGH VOLTAGE SWITCH
Line 2
Reference Application The TBU-PL Series are high-speed protectors used in voice/ VoIP SLIC applications.The maximum voltage rating of the TBU® device should never be exceeded. Where necessary, an OVP device should be employed to limit the maximum voltage. A cost-effective 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.
Basic TBU Operation 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. When the voltage on the SLIC output is driven below (Vbat – Vto) the TBU-PL series device switches to the blocking state, regardless of output current in the device. 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).
Line 2
GND Vdd Line 1 SLIC MOV TBU® Device Line 2 SLIC Vss Line 1
MOV
-VBAT
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.
Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
TBU-PL Series - TBU® High Speed Protectors
Bourns® TBU® Device Solution Industry Standard Telcordia GR-1089-CORE Intra-building Telcordia GR-1089-CORE Enhanced Intra-building Surge & AC Tests 1500 V, 100 A 2/10 µs 120 V RMS, 25 A, 900 s 5000 V, 500 A 2/10 µs 120 V RMS, 25 A, 900 s 1500 V, 100 A 2/10 µs 277 V RMS, 25 A, 900 s 1500 V, 40 Ω 10/700 µs 4000 V, 40 Ω 10/700 µs 230 V rms 10 Ω -1000 Ω, 900 s 600 V rms 600 Ω, 1 s 1500 V, 40 Ω 10/700 µs 4000 V, 40 Ω 10/700 µs 230 V rms 10 Ω -1000 Ω, 900 s 600 V rms 600 Ω, 0.2 s 1500 V, 40 Ω 10/700 µs 6000 V, 40 Ω 10/700 µs 230 V rms 10 Ω -1000 Ω, 900 s 600 V rms 600 Ω, 0.2 s 600 V rms 600 Ω, 1 s 1500 V rms, 200 Ω 2s 1500 V, 40 Ω 10/700 µs 6000 V, 40 Ω 10/700 µs* 230 V rms 10 Ω -1000 Ω, 900 s 600 V rms 600 Ω, 0.2 s 600 V rms 600 Ω, 1 s* 1500 V rms, 200 Ω 2s* 5000 V, 500 A 2/10 µs 120V RMS, 25 A, 900 s 1500 V, 40 Ω 10/700 µs 6000 V, 40 Ω 10/700 µs* 230 V rms 10 Ω -1000 Ω, 900 s 600 V rms 600 Ω, 0.2 s 600 V rms 600 Ω, 1 s* 1500 V rms, 200 Ω 2s* TBU® Device P/N TBU-PL050-xxx-WH TBU-PL060-xxx-WH TBU-PL085-xxx-WH Qty. 1 1 1 OVP Device P/N MOV-07D201K MOV-10D201K MOV-10D431K Qty. 2 2 2
TBU-PL060-xxx-WH
1
TISP4400M3BJ
2
ITU-T K.20, K.21, K.45 Basic
TBU-PL075-xxx-WH
1
MOV-10D361K
2
TBU-PL060-xxx-WH
1
TISP4500H3BJ
2
ITU-T K.20, K.21, K.45 Enhanced
TBU-PL085-xxx-WH
1
MOV-10D391K
2
Telcordia GR-1089-CORE Intra-building and ITU-T K.20, K.21, K.45 Enhanced
TBU-PL085-xxx-WH
1
MOV-10D391K
2
* GDT Special Test Protector with DC breakdown (DCBD) of less than 330 V . Note: The Le9500, Le9520 and Le9530 (VE950 series) require a 200 mA Itrigger TBU® device for normal operation. Device Pin Out
6
Pad Designation Pad # Pin Out Line 1 Vdd Not Used Line 1 SLIC Pad # 5 6 7 8 Pin Out Line 2 SLIC Vss Not Used Line 2
8
5
1 2
4
1
3
2
4
Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
TBU-PL Series - TBU® High Speed Protectors
Performance Graphs Typical V-I Characteristics (TBU-PL085-200-WH) Typical Trigger Current vs. Temperature
1.8
Normalized Trigger Current (A)
CURRENT (50 mA/div)
ITRIP
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
VRESET
VOLTAGE (5 V/div)
Junction Temperature (°C)
Tracking Voltage Characteristics
Vbat range of -25 V to -150 V
Typical Resistance vs. Temperature
2.2
Normalized Resistance (Ω)
-4 -3 -2 -1 0 1 2 3 4
100 90
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
Resistance ( )
80 70 60 50 40
Voltage threshold offset (V)
0
25
50
75 100 125
Junction Temperature (°C)
Power Derating Curve
3.0
Typical Surge Response
One Side, No PCB Cu One Side, 0.5 sq. in. PCB Cu Two Sides, No PCB Cu Two Sides, 0.5 sq. in. PCB Cu
Voltage: 100 V/div
2.5
Total Max. Power (W)
2.0
Time: 250 ns/div
1.5
Current: 100 mA/div
1.0
0.5 0.0 20 40 60 80 100 120 140
Junction Temperature (°C)
(TBU-PL050-100-WH with MOV-07D201K Using 1800 V 1.2/50 ms Surge Pulse)
Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
TBU-PL Series - TBU® High Speed Protectors
Product Dimensions
0.70 (.028) 0.825 (.032) 0.40 (.016) 0.825 (.032) 6.50 (.256) 0.85 ± 0.05 (.033 ± .002) 1.335 (.053) 0.30 (.012) 1.15 (.045)
1.20 (.047) 1.35 (.053)
0.725 (.029) 1.275 (.050) 0.30 (.012) 1.275 (.050)
0.85 (.033)
0.73 (.029)
0.85 (.033) 1.35 (.053)
4.00 (.157)
1.20 (.047) 0.85 (.033)
0.85 (.033) 1.275 (.050) 0.25 C PIN 1 (.010) 1.30 (.051) 0.75 (.030)
PIN 1 & BACKSIDE CHAMFER
0.80 - 0.95 (.031 - .037)
1.335 (.053)
1.25 (.049) 0.75 (.030) 0.70 (.028)
0.90 (.035) 0.85 (.033) 0.85 (.033)
0.00 - 0.05 (.000 - .002)
DIMENSIONS:
MM (INCHES)
0.75 (.030) 0.40 (.016)
Recommended Pad Layout 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.
Thermal Resistance vs Additional PCB Cu Area
120
Thermal Resistance (°C/W)
100
Power in One Side of TBU® Device Total Power in Both Sides of TBU® Device
80
60
40
20
8
7
6
5
0 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.)
1 2 3 4
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.
3312 - 2 mm SMD Trimming Protectors TBU-PL Series - TBU® High Speed Potentiometer
Reflow Profile
Profile Feature Average Ramp-Up Rate (Tsmax to Tp) Preheat - Temperature Min. (Tsmin) - Temperature Max. (Tsmax) - Time (tsmin to tsmax) Time maintained above: - Temperature (TL) - Time (tL) Peak/Classification Temperature (Tp) Time within 5 °C of Actual Peak Temp. (tp) Ramp-Down Rate Time 25 °C to Peak Temperature Pb-Free Assembly 3 °C/sec. max. 150 °C 200 °C 60-180 sec. 217 °C 60-150 sec. 260 °C 20-40 sec. 6 °C/sec. max. 8 min. max.
How to Order
Typical Part Marking
TBU - PL 085 - 100 - WH
TBU Product Series PL = Dual Bidirectional Series Impulse Voltage Rating 050 = 500 V 060 = 600 V 075 = 750 V 085 = 850 V Trigger Current 100 = 100 mA 200 = 200 mA Hold to Trip Ratio Suffix W = Hold to Trip Ratio Package Suffix H = DFN Package
®
MANUFACTURER’S TRADEMARK
PRODUCT CODE - 1ST DIGIT INDICATES PRODUCT FAMILY: L = TBU-PL SERIES - 2ND & 3RD DIGITS INDICATE IMPULSE VOLTAGE: 50 = 500 V 60 = 600 V 75 = 750 V 85 = 850 V - 4TH DIGIT INDICATES TRIGGER CURRENT: 1 = 100 mA 2 = 200 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
Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
T3312 - Series SMD ® High Speed Protectors BU-PL 2 mm - TBU Trimming Potentiometer
Packaging Specifications
P0 E B t TOP COVER TAPE N D C F W D P2
A
B0 K0 A0 P G (MEASURED AT HUB) USER DIRECTION OF FEED CENTER LINES OF CAVITY D1 EMBOSSMENT
QUANTITY: 3000 PIECES PER REEL
A Min. 326 (12.835) A0 Min. 4.30 (.169) K0 Min. 1.0 (.039) Max. 1.2 (.047) Min. 7.9 (.311) Max. 4.50 (.177) Min. 6.70 (.264) P Max. 330 (13.002) Min. 1.5 (.059) B0
B Max. 2.5 (.098) D Max. 6.90 (.272) Max. 8.1 (.319) Min. 1.5 (.059) P0 Min. 3.9 (.159) Max. 4.1 (.161) Max. 1.6 (.063) Min. 12.8 (.504)
C Max. 13.5 (.531) D1 Min. 1.5 (.059) P2 Min. 1.9 (.075) Max. 2.1 (.083) Max. Min. 20.2 (.795)
D Max. E Min. 1.65 (.065) t Min. 0.25 (.010) Max. 0.35 (.014) Max. 1.85 (.073)
G Ref. 16.5 (.650) F Min. 7.4 (.291) W Min. 15.7 (.618)
DIMENSIONS:
N Ref. 102 (4.016)
max. 7.6 (.299) Max. 16.3 (.642)
MM (INCHES)
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
REV. 01/11
“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.
