USBLC6-2P6

Part: USBLC6-2SC6, USBLC6-2P6 by STMicroelectronics

Type: Very Low Capacitance ESD Protection Diode Array

Description: A monolithic Application Specific Device providing ESD protection for two data lines and VBUS on high-speed interfaces like USB2.0 and Ethernet, featuring very low capacitance (3.5 pF max) and very low leakage current (1 μA max), compliant with IEC61000-4-2 level 4.

Operating Conditions:

• Supply voltage: Designed for lines up to 5 V (reverse stand-off voltage)
• Operating temperature: Max junction temperature 125 °C
• Max I/O capacitance: 3.5 pF

Absolute Maximum Ratings:

• Max peak pulse voltage (air discharge): 15 kV
• Max peak pulse voltage (contact discharge): 15 kV
• Max junction temperature: 125 °C
• Max storage temperature: -55 to +150 °C

Key Specs:

• Reverse stand-off voltage (V_RM): 5 V
• Leakage current (I_RM) at V_RM = 5V: 1 μA max
• Breakdown voltage (V_BR) between V_BUS and GND at I_F = 1mA: 6 V min
• Clamping voltage (V_CL) at I_PP = 1A (8/20μs): 12 V max
• Clamping voltage (V_CL) at I_PP = 5A (8/20μs): 17 V max
• Capacitance between I/O and GND (C_i/o-GND) at V=0V, F=1MHz: 2.5 pF typ, 3.5 pF max
• Capacitance between I/O (C_i/o-i/o) at V=0V, F=1MHz: 1.2 pF typ, 1.7 pF max
• Capacitance matching tolerance (∆C_i/o-GND): 0.04 pF max

Features:

• 2 data lines protection
• Protects V_BUS
• Very low capacitance: 3.5pF max
• Very low leakage current: 1μA max
• SOT-666 and SOT23-6L packages
• RoHS compliant

Applications:

• USB2.0 ports at 480Mbps (high speed) and USB OTG ports
• Backwards Compatible with USB1.1 Low and full speed
• Ethernet port: 10/100Mb/s
• SIM card protection
• Video line protection
• Portable and mobile electronics

Package:

• SOT23-6L
• SOT-666

• ■ 2 data lines protection
• ■ Protects V BUS
• ■ Very low capacitance: 3.5pF max
• ■ Very low leakage current: 1μA max
• ■ SOT-666 and SOT23-6L packages
• ■ RoHS compliant

• ■ USB2.0 ports at 480Mbps (high speed) and USB OTG ports
• ■ Backwards Compatible with USB1.1 Low and full speed
• ■ Ethernet port: 10/100Mb/s
• ■ SIM card protection
• ■ Video line protection
• ■ Portable and mobile electronics

USBLC6-2P6 Pinout

Package: SOT-666 (6-pin)

Notes

• Pin count: 6 pins in SOT-666 package (2.9 mm² max)
• Functional design: Rail-to-rail ESD protection topology with integrated diodes protecting D+, D-, and VBUS lines to ground
• Capacitance: Very low line capacitance (3.5 pF max I/O-to-GND) ensures USB 2.0 compliance (<1 pF requirement) and signal integrity
• ESD rating: IEC61000-4-2 Level 4 compliant (15 kV air discharge, 8 kV contact discharge)
• Multiple GND pins: Pins 2, 4, and 6 are all connected to ground for optimal current distribution during ESD events
• VBUS protection: Pin 5 includes ESD protection and allows ESD current to flow to ground during surge events

Figure 2: Capacitance versus line voltage (typical values)

Figure 4: Relative variation of leakage current versus junction temperature (typical values)

Figure 3: Line capacitance versus frequency (typical values)

Figure 5: Frequency response