DS5285 Rev 10

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L4993

Electrical specifications

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2

Electrical specifications

2.1

Absolute maximum ratings

Stressing the device above the rating listed in Table 3: Absolute maximum ratings 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 the conditions in the table below for extended

periods may affect device reliability.

2.2

Thermal data

For details, please refer to Section 4.1: SO-8 thermal data and Section 4.2: SO-20 thermal

data

.

Table 3. Absolute maximum ratings

Symbol

Parameter

Value

Unit

VVsdc

DC supply voltage

-0.3 to 40

V

IVsdc

Input current

Internally limited

VVo

DC output voltage

-0.3 to 6 (1)

1. Using the typical application schematic with Cout= 10 µF and Iout=0 A, when the regulator is switched-on,

an overshoot exceeding 6 V could occur.This behavior does not impact the reliability of the regulator.

V

IVo

DC output current

Internally limited

VWi

Watchdog input voltage

-0.3 to VVo + 0.3

V

Vod

Open drain output voltage

-0.3 to VVo + 0.3

V

Iod

Open drain output current

Internally limited

Vcr

Reset delay voltage

-0.3 to VVo + 0.3

V

Vcw

Watchdog delay voltage

-0.3 to VVo + 0.3

V

VWEn

Watchdog Enable input voltage

-0.3 to VVo +0.3

V

Tj

Junction temperature

-40 to 150

°C

VESD

ESD voltage level (HBM-MIL STD 883C)

±2

kV

VESD

ESD voltage level (CDM AEC-Q100-011)

750

V

Table 4. Thermal data(1)

1. The values quoted are for PCB FR4 area= 58mm x 58mm, PCB thickness = 2 mm, Cu thickness = 35 µm,

Copper areas: SO-8= 2 cm2, SO-20= 6 cm2.

Symbol

Parameter

Value

Unit

Rth-jamb

Thermal resistance Junction to Ambient:

SO-8

SO-20

130

51

°C/W

°C/W