USB6B1RL

USB6B1 Data line protection Applications Where transient overvoltage protection in sensitive equipment is required, such as: ■ Universal Serial Bus ports ■ RS-423 interfaces ■ RS-485 interfaces ■ ISDN equipment ■ T1/E1 line cards ■ HDSL / ASDL interfaces Features ■ Full diode bridge with integrated clamping protection ■ Breakdown voltage: VBR = 6 V min. ■ Peak pulse power dissipation: PPP = 500 W (8/20 µs) ■ Very low capacitance, compatible with high debit data or signal rates. Description In order to prevent fast transients from leading to severe damages in a high speed data system, a specific protection has been developed by STMicroelectronics. The USB6B1 protects the two input lines against overvoltage. Besides, this device also keeps the power rails in a safe limit thanks to the integrated Transil diode. Benefits ■ Provides protection for each line and between the supply voltage and GND: 25 A, 8/20 µs. ■ High ESD protection level: up to level 3 per MIL STD 883C-Method 3015-6 ■ Separated inputs and outputs (so-called 4-point structure) to improve ESD susceptibility. ■ Comprehensive package pin-out for immediate implementation. SO-8 Order Codes Part Numbers USB6B1 USB6B1RL Functional diagram Marking USB62 USB62 VCC I/O1 I/O2 GND VCC I/O1 I/O2 GND Complies with the following standards: MIL STD 883C - Method 3015-6 class 3 C = 100 pF R = 1500 Ω 3 positive strikes and 3 negative strikes (F = 1 Hz) IEC 61000-4-2 level 4 15 kV (air discharge) 8 kV (contact dischar...