Maximum rating

ST890B, ST890C, ST890D

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2

Maximum rating

Stressing the device above the rating listed in the “Absolute maximum ratings” table may

cause permanent damage to the device. These are stress ratings only and operation of the

device at these or any other conditions above those indicated in the operating sections of

this specification is not implied. Exposure to Absolute maximum rating conditions for

extended periods may affect device reliability. Refer also to the STMicroelectronics SURE

Program and other relevant quality documents.

Table 7.

Thermal data

Table 6.

Absolute maximum ratings

Symbol

Parameter

Value

Unit

Supply voltage

-0.5 to +6

V

Input voltage at ON pin

-0.5 to +6

V

Input voltage at FAULT_N pin

-0.5 to +6

V

Voltage at SET pin

V

Maximum continuous switching current

1.5

A

Storage temperature

-65 to +150

°C

Operating junction temperature range

-40 to +85

°C

Symbol

Parameter

SO-8

DFN8L

Unit

Thermal

resistance

junction-ambient

1.

This value depends from thermal design of PCB on which the device is mounted.

2.

This value depends from the 4-layer PCB, JEDEC standard test board.

°C/W

Table 8.

Electrical characteristics

Symbol

Parameter

Value

Unit

Min

Typ

Max

Operating voltage

2.7

5.5

V

ON quiescent

supply current

ON = GND

IO = 0

13

25

μA

OFF quiescent

supply current

ON =IN

1

μA

ON =IN

5