TISP61521 Bourns, Inc., TISP61521 Datasheet
TISP61521
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TISP61521 Summary of contents
Page 1
... The TISP61521 is a dual forward-conducting buffered p-gate overvoltage protector designed to protect monolithic SLICs (Subscriber Line Interface Circuits) against overvoltages on the telephone line caused by lightning, a.c. power contact and induction. The TISP61521 limits voltages that exceed the SLIC supply rail voltage. The TISP61521 parameters are specified to allow equipment compliance with Bellcore GR-1089-CORE, Issue 1 and ITU-T recommendation K.20. ...
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... These monolithic protection devices are fabricated in ion-implanted planar vertical power structures for high reliability and in normal system operation they are virtually transparent. The TISP61521 buffered gate design reduces the loading on the SLIC supply during overvoltages caused by power cross and induction. The TISP61521 is available in an 8-pin plastic small-outline surface mount package. ...
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... TISP61521 SLIC Protector Recommended Operating Conditions C1 Gate decoupling capacitor series resistor for GR-1089-CORE, 2/10, 10/360 and 10/1000 first-level surge survival series resistor for GR-1089-CORE, 2/10, 10/360 and 10/1000 first-level and 2/10 second-level surge survival series resistor for K.20, K.21 and K.45 coordination with a 400 V primary protector series resistor for K. 10/700 surge survival ...
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... TISP61521 SLIC Protector Thermal Characteristics Parameter R Junction to free air thermal resistance JA θ Parameter Measurement Information V GK(BO (BO (BO) Quadrant III Switching Characteristic Unless Otherwise Noted, All Voltages are Referenced to the Anode APRIL 2001 REVISED JULY 2008 Specifications are subject to change without notice. ...
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... TISP61521 SLIC Protector Thermal Information 1.5 0.8 0.7 0.6 0.5 Figure 2. Non-Repetitive Peak On-State Current against Duration PEAK NON-RECURRING AC vs CURRENT DURATION 20 RING AND TIP TERMINALS: 15 Equal I values applied TSM simultaneously 10 GROUND TERMINAL: 8 Current twice I 7 EIA / JEDSD51 6 Environment and 5 PCB -100 V ...
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... Figure 3. Negative Overvoltage Condition Operation of Gated Protectors Figure 3 and Figure 4 show how the TISP61521 limits negative and positive overvoltages. Positive overvoltages (Figure 4) are clipped by the antiparallel diode of Th5 and the resulting current is diverted to ground. Negative overvoltages (Figure 3) are initially clipped close to the SLIC negative supply rail value (V BATH ) ...
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... Figure 5. Protector Fast Impulse Clamping and Switching Waveforms Application Circuit Figure 6 shows a typical TISP61521 SLIC card protection circuit. The incoming line conductors, Ring (R) and Tip (T), connect to the relay matrix via the series overcurrent protection. Fusible resistors, fuses and positive temperature coefficient (PTC) resistors can be used for overcurrent protection ...
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... TISP61521 SLIC Protector OVER- RING/TEST CURRENT PROTECTION PROTECTION TIP WIRE R SA Th3 R SB RING WIRE APRIL 2001 REVISED JULY 2008 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. TEST RELAY Th1 S1a Th2 TISP ...
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... TISP61521 SLIC Protector Device Symbolization Code Devices will be coded as follows: MECHANICAL DATA Symbolization Device Code TISP61521DR-S 61521 “TISP” trademark of Bourns, Ltd., a Bourns Company, and is Registered in U.S. Patent and Trademark Office. “Bourns” registered trademark of Bourns, Inc. in the U.S. and other countries. ...