L6491 datasheet(6/24 Pages) STMICROELECTRONICS

номер детали	L6491

подробное описание детали	Power supply unit

PDF	24 Pages

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производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

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Electrical data

L6491

6/24

DocID024832 Rev 1

Electrical data

4.1

Absolute maximum ratings

4.2

Thermal data

Table 4. Absolute maximum ratings(1)

1. Each voltage referred to SGND unless otherwise specified.

Symbol

Parameter

Value

Unit

Min.

Max.

VCC

Supply voltage

-0.3

VPGND

Low-side driver ground

VCC - 21

VCC + 0.3

Vout

Output voltage

Vboot - 21

Vboot + 0.3

Vboot

Bootstrap voltage

-0.3

620

Vhvg

High-side gate output voltage

Vout - 0.3

Vboot + 0.3

Vlvg

Low-side gate output voltage

PGND - 0.3

VCC + 0.3

Vcp-

Comparator negative input voltage(2)

2. Spikes up to 20 V can be tolerated if the duration is shorter than 50 ns (fSW = 120 kHz).

-0.3

5.5

Vcp+

Comparator positive input voltage(2)

-0.3

5.5

Logic input voltage

-0.3

VOD

Open-drain voltage

-0.3

dvout / dt Allowed output slew rate

V/ns

Ptot

Total power dissipation (TA = 25 °C)

1.0

Junction temperature

150

°C

Tstg

Storage temperature

-50

150

°C

ESD

Human body model

Table 5. Thermal data

Symbol

Parameter

SO-14

Unit

Rth(JA)

Thermal resistance junction to ambient

120

°C/W

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