ANSI ESD STM 5.5.1 pdf free download
ANSI ESD STM 5.5.1 pdf free download.Electrostatic Discharge Sensitivity Testing – Transmission Line Pulse (TLP)- Device Level.
3.0 DEFINITIONS
The terms used in the body of this document are in accordance with the definitions found in ESD ADVI .0, ESD Associations Glossary of Terms available for complimentary download at www.esda.org.
transmission line pulse (TLP). A rectangular current pulse formed by discharging a charged transmission line cable.
transmission line pulse test system. A test system that apphes a transmission line pulse to a device under test (DUT) and allows measurement of device electrical characteristics during a pulsed state. The system typically measures current and voltage across the device, and typically performs an evaluation measurement after TLP pulse application.
standard TLP. A TLP system with pulse duration greater than 10 ns and less than or equal to 200 ns.
VF-TLP. A TLP system with a pulse duration less than or equal to 10 ns.
long pulse TLP. A TLP system with a pulse duration greater than 200 ns.
4.0 PERSONNEL SAFETY
THE PROCEDURES AND EQUIPMENT DESCRIBED IN THIS DOCUMENT MAY EXPOSE
PERSONNEL TO HAZARDOUS ELECTRICAL CONDITIONS. USERS OF THIS DOCUMENT
ARE RESPONSIBLE FOR SELECTING EQUIPMENT THAT COMPLIES WITH APPLICABLE
LAWS, REGULATORY CODES AND BOTH EXTERNAL AND INTERNAL POLICY. USERS
ARE CAUTIONED THAT THIS DOCUMENT CANNOT REPLACE OR SUPERSEDE ANY
REQUIREMENTS FOR PERSONNEL SAFETY.
GROUND FAULT CIRCUIT INTERRUPTERS (GFCI) AND OTHER SAFETY PROTECTION
SHOULD BE CONSIDERED WHEREVER PERSONNEL MIGHT COME INTO CONTACT WITH
ELECTRICAL SOURCES.
ELECTRICAL HAZARD REDUCTION PRACTICES SHOULD BE EXERCISED AND PROPER
GROUNDING INSTRUCTIONS FOR EQUIPMENT MUST BE FOLLOWED.
THE RESISTANCE MEASUREMENTS OBTAINED THROUGH THE USE OF THIS TEST
METHOD SHALL NOT BE USED TO DETERMINE THE RELATIVE SAFETY OF PERSONNEL
EXPOSED TO HIGH AC OR DC VOLTAGES.
5.0 EQUIPMENT
TLP systems vary in their use of equipment, configurations, and methodology to extract the current and voltage characteristics of a device. TLP design and system configurations are contained in Annex A.
Most TLP systems have a cable impedance of 50 ohms and that impedance is often assumed in this document. If working with a system with cable impedances other than 50 ohms, load conditions specified as 50 ohms shall be changed to match the impedance of the system being used.
The sections below specify the minimum bandwidth requirements for measurement equipment in a TLP system. These requirements are sufficient for quasi-static TLP, i.e. for accurate measurements in a window after the initial transient effects have settled. Higher bandwidths can be used to obtain more detailed information in the waveforms. VF-TLP systems must achieve a minimum system bandwidth to achieve time resolved measurements of the DUT. System bandwidth will be limited by the lowest bandwidth component. The minimum requirements stated in Section 5.0 may limit total bandwidth. No element in the signal path, such as attenuators, cables and switches, shall limit the bandwidth below that of the measurement equipment.
All equipment within the test system shall be able to withstand the maximum current for the largest pulse width applied. Additionally, all equipment shall withstand the maximum voltage from the initial pre-charge voltage (including the reflected voltage) observed in the test system. Current and voltage probes shall not saturate and/or fail during TLP testing.ANSI ESD STM 5.5.1 pdf download.
