ECMF02-4CMX8 Common mode filter with ESD protection for USB 2.0 Interface Datasheet production data Features ■ Integrated common mode filter ■ Differential pair ESD protection ■ 16 V VBUS ESD and EOS protection ■ ID pin ESD protection ■ Low profile µQFN-8L package ■ High bandwidth: >6 GHz ■ Optimized for high speed USB 2.0 ■ High common mode attenuation at 900 MHz and 1.8 GHz ■ Support of audio over USB 2.0 thanks to bidirectional ESD protection ■ Ultra compact, low board space ■ Low height: < 0.55 mm µQFN-8L (pin view) Figure 1. Pin configuration (top view) VBUS GND D- D- D+ D+ ID GND Complies with the following standards: ■ IEC 61000-4-2 level 4: – 15 kV (air discharge) – 8 kV (contact discharge) ■ RoHS2 compliant Applications Where transient over-voltage protection in ESD sensitive equipment is required, such as: Description ■ Computers ■ Printers ■ Communication systems ■ Cellular phone handsets and accessories ■ Video equipment September 2012 This is information on a product in full production. ECMF02-4CMX8 affords key component integration such as common mode filter D+ and D- lines and ESD protection on all lines. This device offers an optimized flow-through footprint for USB 2.0 applications. Doc ID 022286 Rev 1 1/16 www.st.com 16 Characteristics ECMF02-4CMX8 1 Characteristics Table 1. Absolute maximum ratings (Tamb = 25 °C) Symbol Parameter Value ESD discharge IEC 61000-4-2, level 4 Contact discharge on D+/D- pins Contact discharge on VBUS and ID pins Air discharge on all pins Unit 10 20 30 VPP Peak pulse voltage(1) PPP Peak pulse power (8/20µs) on VBUS 150 W IPP Peak pulse current (8/20µs) on VBUS 4.8 A Top Operating temperature -30 to +85 °C 125 °C - 55 to +150 °C Tj Tstg Maximum junction temperature Storage temperature range kV 1. Measurements done on IEC 61000-4-2 test bench. For further details see Application note AN3353. Figure 2. Electrical characteristics - definitions I Symbol VBR IRM VRM VCL IPP IR = = = = = = Parameter Breakdown voltage Leakage current @ VRM Stand-off voltage Clamping voltage Peak pulse current Breakdown current IPP VCL VBR VRM IR IRM IRM IR IPP 2/16 Doc ID 022286 Rev 1 V VRM VBR VCL ECMF02-4CMX8 Table 2. Characteristics Electrical characteristics (values, Tamb = 25 °C) Symbol Test conditions Min. Typ. Max. Unit Data Lines VBR IR = 1 mA IRM VRM = 5.5 V per line RDC DC serial resistance on data line 6 V 100 nA 3 4 16.5 18 V VBUS VBR IR = 1 mA 15 IRM VRM = 12 V 50 nA VCL Clamping voltage. IPP = 1 A, tp = 8/20 µs 20 V VCL Clamping voltage. IPP = 2.5 A, tp = 8/20 µs 24 V ID VBR IR = 1 mA IRM VRM = 1.5 V per line Figure 3. 6 V 100 nA SDD21 differential attenuation measurement (Z0 diff = 90 ) for data lines D+ and DSDD21 (dB) 0 -0.5 -1 -1.5 -2 -2.5 F (Hz) -3 100k 1M 10M 100M Doc ID 022286 Rev 1 1G 3/16 Characteristics Figure 4. ECMF02-4CMX8 SCC21 common mode attenuation measurement (Z0 com = 45 ) SCC21 (dB) 0 -5 -10 -15 -20 -25 -30 -35 F (Hz) -40 100k Figure 5. 1M 10M 100M 1G ID frequency response measurement (Z0 = 75 ) 0 S21 (dB) -5 -10 -15 -20 -25 F (Hz) -30 100k 4/16 1M 10M 100M Doc ID 022286 Rev 1 1G ECMF02-4CMX8 Figure 6. Characteristics ESD test conditions VBUS GND Attenuators D- D- - 20 dB Figure 7. D+ D+ ID GND - 20 dB Oscilloscope 50 Ω ESD response to IEC 61000-4-2 (+8 kV contact discharge) on VBUS 1 VPP: ESD peak voltage 2 VCL :clamping voltage @ 30 ns 3 VCL :clamping voltage @ 60 ns 4 VCL :clamping voltage @ 100 ns 1 85.6 V 2 46.3 V 3 30.7 V Doc ID 022286 Rev 1 4 23.5 V 5/16 Characteristics Figure 8. ECMF02-4CMX8 ESD response to IEC 61000-4-2 (-8 kV contact discharge) on VBUS 4 -22.0 V 3 -30.4 V 2 -46.0 V 1 -83.5 V Figure 9. 1 VPP: ESD peak voltage 2 VCL :clamping voltage @ 30 ns 3 VCL :clamping voltage @ 60 ns 4 VCL :clamping voltage @ 100 ns ESD response to IEC 61000-4-2 (+8 kV contact discharge) on ID 1 VPP: ESD peak voltage 2 VCL :clamping voltage @ 30 ns 3 VCL :clamping voltage @ 60 ns 4 VCL :clamping voltage @ 100 ns 1 47.2 V 6/16 2 19.0 V 3 17.6 V Doc ID 022286 Rev 1 4 15.5 V ECMF02-4CMX8 Characteristics Figure 10. ESD response to IEC 61000-4-2 (-8 kV contact discharge) on ID 4 -21.2 V 3 -25.2 V 1 -56.0 V 2 -25.1 V 1 VPP: ESD peak voltage 2 VCL :clamping voltage @ 30 ns 3 VCL :clamping voltage @ 60 ns 4 VCL :clamping voltage @ 100 ns Figure 11. ESD response to IEC 61000-4-2 (+8 kV contact discharge) on differential lane 1 VPP: ESD peak voltage 2 VCL :clamping voltage @ 30 ns 3 VCL :clamping voltage @ 60 ns 4 VCL :clamping voltage @ 100 ns 1 54.7 V 2 33.1 V 3 20.6 V Doc ID 022286 Rev 1 4 13.2 V 7/16 Characteristics ECMF02-4CMX8 Figure 12. ESD response to IEC 61000-4-2 (-8 kV contact discharge) on differential lane 4 -11.4 V 3 -17.0 V 1 -49.5 V 2 -27.3 V 1 VPP: ESD peak voltage 2 VCL :clamping voltage @ 30 ns 3 VCL :clamping voltage @ 60 ns 4 VCL :clamping voltage @ 100 ns Figure 13. Eye diagram (loaded by Zdiff = 90 ) Figure 14. Eye diagram (loaded by Zdiff = 90 ) with USB2.0 [mask 1] board only with USB2.0 [mask 1] board with ECM02-4CMX8 Rise time (ps) Fall time (ps) Eye height (mv) Eye width (ns) 347 347 721 2.04 8/16 Rise time (ps) Fall time (ps) Eye height (mv) Eye width (ns) 432 432 674 2.03 Doc ID 022286 Rev 1 ECMF02-4CMX8 Characteristics Figure 15. TDR measurement (loaded by Zdiff = 90 ), rise time 400 ps 100 Zdiff (Ω) 98 96 94 92 90 t (ns) 88 0 1 2 3 4 Figure 16. HS sync Doc ID 022286 Rev 1 9/16 Characteristics ECMF02-4CMX8 Figure 17. Total harmonic distortion on differential lanes Figure 18. Crosstalk on differential lanes 10/16 Doc ID 022286 Rev 1 ECMF02-4CMX8 Application schematic Figure 19. Application schematic ECMF02-4CMX8 VBUS GND D- D- D+ D+ ID GND Towards USB transceiver 2 Application schematic Micro - USB receptacle Doc ID 022286 Rev 1 11/16 Ordering information scheme 3 ECMF02-4CMX8 Ordering information scheme Figure 20. Ordering information scheme ECMF 02 - 4 - C Function ESD common mode filter Number of lines 02 = 2 lines Number of ESD protected lines 4 = 4 ESD protected lines Version C = 16 V VBR for VBUS Package MX8 = µQFN-8L 12/16 Doc ID 022286 Rev 1 MX8 ECMF02-4CMX8 Package information ● Epoxy meets UL94, V0 ● Lead-free packages In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Figure 21. µQFN-8L dimension definitions D A1 A E e 0.40 b PIN #1 Table 3. L 0.20 4 Package information µQFN-8L dimension values Dimensions Ref. Millimeters Inches Min. Typ. Max. Min. Typ. Max. A 0.45 0.50 0.55 0.018 0.020 0.022 A1 0.00 0.02 0.05 0.00 0.0008 0.002 b 0.15 0.20 0.25 0.006 0.008 0.010 D 2.45 2.50 2.55 0.096 0.098 0.100 E 1.15 1.20 1.25 0.045 0.047 0.049 e 0.45 0.50 0.55 0.018 0.020 0.022 L 0.30 0.40 0.50 0.012 0.016 0.020 Doc ID 022286 Rev 1 13/16 Package information ECMF02-4CMX8 Figure 22. Footprint Figure 23. Marking XX WW 0.20 0.40 0.40 1.60 0.60 0.20 YP Dot: Pin 1 XX: Marking WW: Assembly week Y: Assembly year P: Assembly plant 0.50 2.10 Figure 24. Tape and reel specifications Dot identifying Pin A1 location 2.0 Ø 1.55 4.0 8.0 2.80 3.50 1.75 0.30 Ø 0.80 1.45 4.0 0.70 All dimensions are typical values in mm Note: 14/16 User direction of unreeling More packing information is available in the application notes: AN1751: “EMI Filters: Recommendations and measurements” Doc ID 022286 Rev 1 ECMF02-4CMX8 5 Ordering information Ordering information Table 4. Ordering information Order code Marking Package Weight Base qty Delivery mode ECMF02-4CMX8 KG µQFN-8L 3,7 mg 3000 Tape and reel For the latest information on available order codes see the product pages on: www.st.com. 6 Revision history Table 5. Document revision history Date Revision 19-Sep-2012 1 Changes Initial release. Doc ID 022286 Rev 1 15/16 ECMF02-4CMX8 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. 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