MB91F613 datasheet(24/104 Pages) FUJITSU

24 / 104 page

MB91610 Series

DS07-16907-2E

• Latch-up

Semiconductor devices are constructed by the formation of P-type and N-type areas on a substrate. When

subjected to abnormally high voltages, internal parasitic PNPN junctions (called thyristor structures) may be

formed, causing large current levels in excess of several hundred mA to flow continuously at the power supply

pin. This condition is called latch-up.

Note: The occurrence of latch-up not only causes loss of reliability in the semiconductor device, but can cause

injury or damage from high heat, smoke or flame. To prevent this from happening, do the following:

(a) Be sure that voltages applied to pins do not exceed the absolute maximum ratings. This should include

attention to abnormal noise, surge levels, etc.

(b) Be sure that abnormal current flows do not occur during the power-on sequence.

• Observance of Safety Regulations and Standards

Most countries in the world have established standards and regulations regarding safety, protection from elec-

tromagnetic interference, etc. Customers are requested to observe applicable regulations and standards in the

design of products.

• Fail-Safe Design

Any semiconductor devices have inherently a certain rate of failure. You must protect against injury, damage or

loss from such failures by incorporating safety design measures into your facility and equipment such as redun-

dancy, fire protection, and prevention of over-current levels and other abnormal operating conditions.

• Precautions Related to Usage of Devices

FUJITSU MICROELECTRONICS semiconductor devices are intended for use in standard applications (com-

puters, office automation and other office equipment, industrial, communications, and measurement equipment,

personal or household devices, etc.).

CAUTION: Customers considering the use of our products in special applications where failure or abnormal

operation may directly affect human lives or cause physical injury or property damage, or where extremely high

levels of reliability are demanded (such as aerospace systems, atomic energy controls, sea floor repeaters,

vehicle operating controls, medical devices for life support, etc.) are requested to consult with FUJITSU MICRO-

ELECTRONICS sales representatives before such use. The company will not be responsible for damages arising

from such use without prior approval.

MB91F613 Datasheet(PDF) 24 Page - fujitsu semiconductor