LCP1531RL STMicroelectronics

LCP1531 Programmable transient voltage suppressor for SLIC protection Datasheet - production data Features Dual programmable transient suppressor Wide negative firing voltage range: V = -175 V max. Gn Low dynamic switching voltages: V and V FP DGL SO-8 Low gate triggering current: I = 5 mA max GT Peak pulse current: I = 37.5 A (5/310 s) PP Holding current: I = 150 mA min. H Figure 1. LCP1531 functional diagram Low space consuming package TIP 1 TIP Benefits A Trisil is not subject to ageing and provides Gn GND a fail-safe mode in short circuit for better protection. NC GND Trisils are used to help equipment to meet RING RING various standards such as YDT695, GR-1089 and ITU-T K20/21. Trisils are UL94 V0 resin approved and are UL497B approved file: E136224 ). Description These devices are ideally suited to meet the protection requirement of VoIP SLICs located in next generation residential gateways. They can be used for protecting any ringing SLIC since they meet the protection standard requirements. Positive overvoltages are clamped by 2 diodes. Negative surges are suppressed by 2 thyristors, their breakdown voltage being referenced to -V BAT through the gate. These components present a very low gate triggering current (I ) to reduce the current GT consumption on printed circuit board during the firing phase. TM: Trisil is a trademark of STMicroelectronics August 2013 DocID13397 Rev 5 1/10 This is information on a product in full production. www.st.comCharacteristics LCP1531 1 Characteristics Table 1. Standards compliance Peak Required Minimum serial surge peak Voltage Current Standard resistor to meet voltage current waveform waveform standard () (V) (A) 2500 2/10 s 500 2/10 s 20 GR-1089 Core First level 1000 10/1000 s 100 10/1000 s 30 GR-1089 Core 5000 2/10 s 500 2/10 s 40 Second level GR-1089 Core 1500 2/10 s 100 2/10 s 0 Intra-building 6000 150 120 ITU-T-K20/K21 10/700 s 5/310 s 1500 37.5 0 8000 ESD contact discharge 0 ITU-T-K20 (IEC 61000-4-2) 1/60 ns 15000 ESD air discharge 0 4000 10/700 s 100 5/310 s 67 IEC 61000-4-5 4000 1.2/50 s 100 8/20 s 22 TIA-968-A, 1500 10/160 s 200 10/160 s 26 lightning surge type A 800 10/560 s 100 10/560 s 17 TIA-968-A, 1500 9/720 s 37.5 5/320 s 0 lightning surge type B Table 2. Thermal resistance Symbol Parameter Value Unit R Junction to ambient 120 C/W th(j-a) 2/10 DocID13397 Rev 5