CO M PL IA NT TISP3600F3, TISP3700F3 *R oH S DUAL BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS TISP3600F3, TISP3700F3 IEEE Std 802.3 LAN and MAN Applications SL Package (Top View) Ion-Implanted Breakdown Region Precise and Stable Voltage Terminals T&G, R&G T&R Device VDRM V V(BO) V VDRM V V(BO) V ‘3600 420 600 840 1200 ‘3700 500 700 1000 1400 T 1 G 2 R 3 MDXXAGB Device Symbol T R Rated for International Surge Wave Shapes Wave Shape Standard 2/10 GR-1089-CORE 8/20 IEC 61000-4-5 10/160 FCC Part 68 E T E L O S B O ITSP A 10/700 FCC Part 68 ITU-T K.20/21 10/560 FCC Part 68 10/1000 GR-1089-CORE How To Order Device Package 190 175 110 SD3XAA G Terminals T, R and G correspond to the alternative line designators of A, B and C 70 50 45 Carrier Order As TISP3600F3 SL, Single-in-line TUBE TISP3600F3SL-S TISP3700F3 SL, Single-in-line TUBE TISP3700F3SL-S Description These devices are designed to limit overvoltages between systems and so protect their insulation. A single device can be used in two ways; as a 3-point protector or as a 2-point protector. In the 3-point mode, the G terminal is connected to the system protective ground and the R and T terminals are connected to the two conductors being protected. For the TISP3600F3, each conductor will have its voltage limited to ±600 V from the protective ground. The maximum inter-conductor voltage will be limited to ±1200 V. In the 2-point mode, only the outer R and T terminals are connected and the G terminal is unconnected. The TISP3700F3 limits the voltage between the two connection nodes to ±1400 V with voltage limiting beginning above ±1000 V. Two TISP3700F3 devices connected in series would allow insulation testing to ±2000 V ( 1400 Vrms ). The protector consists of two symmetrical voltage-triggered bidirectional thyristors with a common connection. Overvoltages are normally caused by a.c. power system or lightning flash disturbances which are coupled on to the system. These overvoltages are initially clipped by breakdown clamping until the voltage rises to the breakover level, which causes the device to crowbar into a low-voltage on state. This low-voltage on state causes the current resulting from the overvoltage to be safely diverted through the device. The high crowbar holding current helps prevent d.c. latchup as the diverted current subsides. The TISP3x00F3 is guaranteed to voltage limit and withstand the listed international lightning surges in both polarities. *RoHS Directive 2002/95/EC Jan 27 2003 including Annex NOVEMBER 1997 - REVISED JANUARY 2007 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. TISP3600F3, TISP3700F3 Absolute Maximum Ratings, TA = 25 °C (Unless Otherwise Noted) Rating Symbol TISP3600F3 TISP3700F3 Repetitive peak off-state voltage, (R-G or T-G value) Value Unit ± 420 ± 500 VDRM V Non-repetitive peak on-state pulse current (see Notes 1 and 2) 2/10 (Telcordia GR-1089-CORE, 2/10 voltage wave shape) 190 1/20 (I TU-T K.22, 1.2/50 voltage wave shape, 25 Ω resistor) 100 8/20 (I EC 61000-4-5, combination wave generator, 1.2/50 voltage wave shape) 175 10/160 (F CC Part 68, 10/160 voltage wave shape) 110 IPPSM 4/250 (I TU-T K.20/21, 10/700 voltage wave shape, simultaneous) 5/310 (I TU-T K.20/21, 10/700 voltage wave shape, single) 70 5/320 (F CC Part 68, 9/720 voltage wave shape, single) 70 E T E L O S B O 10/560 (F CC Part 68, 10/560 voltage wave shape) 50 10/1000 (Telcordia GR-1089-CORE, 10/1000 voltage wave shape) 45 Non-repetitive peak on-state current (see Notes 1 and 2) 50/60 Hz, 1s ITSM Initial rate of rise of on-state current, Linear current ramp, Maximum ramp value < 38 A Junction temperature Storage temperature range A 95 6 A di T/dt 250 A/µs TJ -40 to +150 °C Tstg -65 to +150 °C NOTES: 1. Initially, the TISP® device must be in thermal equilibrium with TJ = 25 °C. 2. These non-repetitive rated currents are peak values of either polarirty. The rated current values may be applied to the R or T terminals. Additionally, both R and T terminals may have their rated current values applied simultaneously (in this case the G terminal return current will be the sum of the currents applied to the R and T terminals). The surge may be repeated after the TISP returns to its initial conditions. Recommended Operating Conditions Component Series resistor for GR-1089-CORE first-level surge survival Series resistor for ITU-T recommendation K.20 and K.21 R1, R2 Series resistor for FCC Part 68 9/720 survival Series resistor for FCC Part 68 10/160, 10/560 survival Min 15 0 0 10 Typ Min Typ Max Unit Ω Electrical Characteristics for the T and R Terminals, TA = 25 °C Parameter IDRM Repetitive peak offstate current Test Conditions VD = ±2V DRM V(BO) Breakover voltage dv/dt = ±700 V/ms, R SOURCE = 300 Ω I(BO) dv/dt = ±700 V/ms, R SOURCE = 300 Ω I T = ±5 A, di/dt = +/-30 mA/ms IH dv/dt ID Breakover current Holding current TISP3600F3 TISP3700F3 Critical rate of rise of off-state voltage Linear voltage ramp, Maximum ramp value < 1.7VDRM Off-state current VD = ±50 V Max Unit ±10 µA ±1200 ±1400 V ±0.1 A ±0.15 A kV/µs ±5 ±10 µA NOVEMBER 1997 - REVISED JANUARY 2007 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. TISP3600F3, TISP3700F3 Electrical Characteristics for the T and R Terminals, TA = 25 °C (Continued) Parameter Coff NOTE Test Conditions Off-state capacitance Min Typ f = 100 kHz, V d = 1 V rms, VD = 0, (See Note 3) Max Unit 0.1 pF 3: These capacitance measurements employ a three terminal capacitance bridge incorporating a guard circuit. The third terminal is connected to the guard terminal of the bridge. Electrical Characteristics for the T and G or the R and G Terminals, TA = 25 °C Parameter IDRM Test Conditions Repetitive peak offstate current IH dv/dt ID Coff NOTE dv/dt = ±700 V/ms, R SOURCE = 300 Ω dv/dt = ±700 V/ms, R SOURCE = 300 Ω Holding current I T = ±5 A, di/dt = +/-30 mA/ms Critical rate of rise of off-state voltage Linear voltage ramp, Maximum ramp value < 0.85VDRM Off-state current V D = ±50 V Off-state capacitance f = 100 kHz, Vd = 1 V rms, VD = 0, (See Note 4) f = 100 kHz, Vd = 1 V rms, VD = -50 V Max Unit ±5 µA ±600 ±700 V A ±0.1 ±0.15 A ±5 kV/µs 44 11 ±10 µA 74 20 pF 4: These capacitance measurements employ a three terminal capacitance bridge incorporating a guard circuit. The third terminal is connected to the guard terminal of the bridge. Parameter NOTE TISP3600F3 TISP3700F3 E T E L O S B O Breakover current Thermal Characteristics RθJA Typ VD = ±V DRM V(BO) Breakover voltage I(BO) Min Junction to free air thermal resistance Test Conditions EIA/JESD51-3 PCB, IT = ITSM(1000) , TA = 25 °C, (see Note 5) Min Typ Max Unit 50 °C/W 5: EIA/JESD51-2 environment and PCB has standard footprint dimensions connected with 5 A rated printed wiring track widths. NOVEMBER 1997 - REVISED JANUARY 2007 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. TISP3600F3, TISP3700F3 Parameter Measurement Information +i Quadrant I ITSP Switching Characteristic ITSM V(BO) I(BO) IH IDRM VD VDRM -v ID ID IDRM VD +v VDRM E T E L O S B O IH I(BO) V(BO) ITSM Quadrant III I Switching Characteristic ITSP -i PMXXAH A Figure 1. Voltage-Current Characteristic for R-G and T-G Terminal Pairs +i Quadrant I ITSP Switching Characteristic ITSM V(BO) I(BO) IH IDRM VD VDRM -v ID ID VD VDRM +v IDRM IH I(BO) V(BO) ITSM Quadrant III Switching Characteristic ITSP -i PMXXAJ A Figure 2. Voltage-Current Characteristic for R-T Terminal Pair NOVEMBER 1997 - REVISED JANUARY 2007 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. TISP3600F3, TISP3700F3 Typical Characteristics OFF-STATE CURRENT vs JUNCTION TEMPERATURE TC3LAF 100 1.10 Normalized Breakover Voltage ID - Off-State Current - µA 10 1 V D = 50 V 0·1 1.05 E T E L O S B O VD = -50 V 0·01 NORMALIZED BREAKOVER VOLTAGE vs JUNCTION TEMPERATURE TC3MAIA 1.00 0.95 0·001 -25 0 25 50 75 100 125 -25 150 0 25 50 100 TJ - Junction Temperature - °C TJ - Junction Temperature - °C Figure 3. Figure 4. HOLDING CURRENT vs JUNCTION TEMPERATURE 0.5 TC3LAHA 0.4 IH - Holding Current - A 75 0.3 0.2 0.1 -25 0 25 50 75 100 TJ - Junction Temperature - °C Figure 5. NOVEMBER 1997 - REVISED JANUARY 2007 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 125 150 125 150 TISP3600F3, TISP3700F3 Thermal Information NON-REPETITIVE PEAK ON-STATE CURRENT vs CURRENT DURATION TI4FA A ITSM(t) - Non-Repetitive Peak On-State Current - A 20 VGEN = 1500 V rms, 50/60 Hz 15 RGEN = 1.4*VGEN/ITSM(t) EIA/JESD51-2 ENVIRONMENT EIA/JESD51-3 PCB, TA = 25 °C 10 9 8 7 6 5 SIMULTANEOUS OPERATION OF R AND T TERMINALS. G TERMINAL CURRENT = 2xI TSM(t) 4 E T E L O S B O 3 2 1.5 1 0·1 1 10 100 t - Current Duration - s 1000 Figure 6. NOVEMBER 1997 - REVISED JANUARY 2007 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. TISP3600F3, TISP3700F3 APPLICATIONS INFORMATION IEC 60950, EN 60950, UL 1950 and CSA 22.2 No.950 The ‘950 family of standards have certain requirements for equipment (EUT) with incoming lines of telecommunication network voltage (TNV). Any protector from a TNV conductor to protective ground must have a voltage rating of at least 1.6 times the equipment rated supply voltage (Figure 7). The intent is to prevent the possibility of the a.c. main supply voltage from feeding into the telecommunication network and creating a safety hazard. International and European equipment usually have a maximum rated voltage of 230 V rms, 240 V rms or 250 V rms. Multiplying the 250 V value by 1.6 gives a protector VDRM value of 400 V. Allowing for operation down 0 °C gives a VDRM requirement of 420 V at 25 °C. This need is met by the TISP3600F3. Overvoltage Protection bridging insulation AC SUPPLY Te lecommunication network connection EUT E T E L O S B O Th1 Insulation Protective ground connection Th2 TISP3600F3 AI3XAC Figure 7. '950 TNV Network Insulation from Protective Ground LAN System Insulation Protection Some wired systems are not directly connected to ground and are either floating or have a high resistance to ground. Induced transients may cause high voltages relative to ground, resulting in arcing across insulation at wiring junctions. Arcing often leaves carbonized tracks which can degrade system performance. Where the system is carrying a power feed, current conduction through the carbonized track may cause a safety hazard. Th3 Th2 D7 D5 D3 D1 D6 D4 D2 Th1 TISP 3x00F3 TISP 3x00F3 D8 TISP 4xxx AI3XAB SYSTEM CONDUCTORS Figure 8. System Insulation Protection In Figure 8, a low-protector, Th1, from a TISP4xxx series limits the differential conductor voltage of the system. The use of a diode bridge, D1 through D4, reduces the capacitive loading of the protectors on the system and can be extended to protect more conductors as shown by the dotted diodes D5 and D6. Low voltage diodes can be used as the maximum reverse voltage stress is limited to the V(BO) value of the TISP4xxx protector plus the diode forward recovery voltage. Steering diodes D7 and D8 and high-voltage protector Th2 limit the conductor voltage to ground. The limiting voltage is set by the choice of protector, TISP3600F3, 1200 V or TISP3700F3, 1400 V, and the number connected in series (one extra protector Th3 shown dotted). NOVEMBER 1997 - REVISED JANUARY 2007 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. TISP3600F3, TISP3700F3 APPLICATIONS INFORMATION LAN System Insulation Protection (continued) IEEE Std 802.3, 2000 Edition (IEEE Standard for Information technology— Telecommunications and information exchange between systems— Local and metropolitan area networks— Specific requirements, Part 3: Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications) specifies three network insulation withstands: 1.5 kV rms a.c., 2.25 kV d.c. and 2.4 kV 1.2/50 impulse. Under these conditions there shall be no insulation breakdown, as defined in IEC 60950:1991. Also, there is a 2 MΩ insulation resistance minimum requirement measured at 500 V d.c. (250 µA maximum). In Figure 8, at least one protection element of a TISP3700F3 must be used to give the 500 V working voltage (VDRM) to meet the insulation resistance requirement. To avoid breakover during the 2.4 kV impulse test, five TISP3700F3 protection elements (2.5 kV VDRM, 2-1/2 SL packages) or six TISP3600F3 elements (2.52 kV VDRM, 3 SL packages) are required. Transmitters are required to withstand a 1 kV 0.3/50 common-mode impulse. A TISP3700F3 (1 kV VDRM), from each conductor to ground at the transmitter, would not breakover during the impulse. BOD Replacement Figure 9a shows a traditional overvoltage protection scheme for a high power switching thyristor, Th1. The protection voltage level is set by a BOD (BreakOver Diode) thyristor. Potentially damaging voltage transients cause the BOD to crowbar which turns on thyristor Th1. The on state of thyristor Th1 causes the current drawn by the load from the d.c. voltage supply +V to continuously increase until the fast acting fuse F1 operates. E T E L O S B O Resistor R1 limits the peak BOD current and diode D1 protects the unidirectional BOD against reverse polarity voltage. Resistor R2 provides a d.c. return, and with capacitor C1, forms a low pass network to prevent false triggering from noise. Further trigger voltage discrimination and isolation is given by the series combination of zener diode D2 and reverse blocking diode D3. Capacitor C2 and Resistor R3 form the normal snubber network for the thyristor Th1. +V +V F1 R1 D1 LOAD R1 R3 R3 TISP 3x00F3 Th1 BOD AI3XAA F1 LOAD D2 R2 D2 R2 D3 C2 Th1 n D3 C2 C1 C1 a) GATE DRIVE b) GATE DRIVE Figure 9. Thyristor Protection Figure 9b shows the TISP3x00F3 replacing the unidirectional BOD and reverse polarity protection diode, D1. Reverse polarity protection is not needed for the TISP3x00F3 as it is bidirectional. NOVEMBER 1997 - REVISED JANUARY 2007 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. TISP3600F3, TISP3700F3 MECHANICAL DATA Device Symbolization Code Devices will be coded as follows: DEVICE SYMBOLIZATION CODE TISP36 00F3 SP3600F3 TISP37 00F3 SP3700F3 E T E L O S B O “TISP” is a trademark of Bourns, Ltd., a Bourns Company, and is Registered in U.S. Patent and Trademark Office. “Bourns” is a registered trademark of Bourns, Inc. in the U.S. and other countries. NOVEMBER 1997 - REVISED JANUARY 2007 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.