ST7263B datasheet(105/132 Pages) STMICROELECTRONICS

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ST7263B

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EMC CHARACTERISTICS (Cont’d)

13.7.2 Absolute Electrical Sensitivity

Based on three different tests (ESD, LU and DLU)

using specific measurement methods, the product

is stressed in order to determine its performance in

terms of electrical sensitivity. For more details, re-

fer to the AN1181 ST7 application note.

13.7.2.1 Electro-Static Discharge (ESD)

Electro-Static Discharges (1 positive then 1 nega-

tive pulse separated by 1 second) are applied to

the pins of each sample according to each pin

combination. The sample size depends of the

number of supply pins of the device (3 parts*(n+1)

supply pin). The Human Body Model is simulated.

This test conforms to the JESD22-A114A stand-

ard. See Figure 54 and the following test sequenc-

es.

Human Body Model Test Sequence

– CL is loaded through S1 by the HV pulse gener-

ator.

– S1 switches position from generator to R.

– A discharge from CL through R (body resistance)

to the ST7 occurs.

– S2 must be closed 10 to 100ms after the pulse

delivery period to ensure the ST7 is not left in

charge state. S2 must be opened at least 10ms

prior to the delivery of the next pulse.

Absolute Maximum Ratings

Figure 54. Typical Equivalent ESD Circuits

Notes:

1. Data based on characterization results, not tested in production.

Symbol

Ratings

Conditions

Maximum value 1) Unit

VESD(HBM)

Electro-static discharge voltage

(Human Body Model)

TA=+25°C

2000

ST7

R=1500

Ω

HIGH VOLTAGE

CL=100pF

PULSE

GENERATOR

HUMAN BODY MODEL

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