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Hot!Transzorb for MCP73831 USB LiIon Charger?

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rolfo
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2016/03/18 01:13:22 (permalink)
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Transzorb for MCP73831 USB LiIon Charger?

The datasheet of  recommends a transzorb on the USB power input (VDD). Section 6.1.1.2.
 
Absolute maximum ratings for VDD is listed as 7.0V plus 4kV human body ESD and 400V machine model ESD. On USB Vbus can be 5.1V, so what is a good transzorb device to use?
 
Note: Most tranzorb/TVS/varistor devices that allows 5.1V, can be at 7V before the shunt current reaches 1mA and will specify a clamping voltage of 15-35V for higher currents.
post edited by rolfo - 2016/03/19 01:50:20
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MJordan
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Re: Transzorb for MCP73831 USB LiIon Charger? 2020/08/09 11:35:39 (permalink)
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I am looking for the same answer. I am not familiar with TVS Diodes, would VTVS5V0ASMF-M3-08 be appropriate? I appreciate your feedback. Thanks.
 
VTVS5V0ASMF-M3-08
 
https://www.mouser.com/ProductDetail/Vishay-Semiconductors/VTVS5V0ASMF-M3-08?qs=VPy2d4TTPFFarKHmuvm23w%3D%3D
 
Product Type:ESD SuppressorsPolarity:UnidirectionalWorking Voltage:5 VNumber of Channels:1 ChannelTermination Style:SMD/SMTPackage / Case:DO-219AB-2Breakdown Voltage:6.4 VClamping Voltage:8.9 VPppm - Peak Pulse Power Dissipation:400 WVesd - Voltage ESD Contact:30 kVVesd - Voltage ESD Air Gap:30 kVCd - Diode Capacitance:2095 pFIpp - Peak Pulse Current:42.95 AMinimum Operating Temperature:- 55 CMaximum Operating Temperature:+ 175 CSeries:VTVS SMFQualification:AEC-Q101Packaging:Cut TapePackaging:MouseReelPackaging:ReelBrand:Vishay Semiconductors Factory Pack Quantity:3000 Subcategory:TVS Diodes / ESD Suppression Diodes Tradename:TransZorb Vf - Forward Voltage:1.8 V
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