Rainbow-electronics ATA6630 Manual do Utilizador descarregar pdf (Página 23)

9117C–AUTO–10/09

ATA6628/ATA6630 [Preliminary]

8. Thermal Characteristics

Parameters Symbol Min. Typ. Max. Unit

Thermal resistance junction to heat slug R

thjc

10 K/W

Thermal resistance junction to ambient,

where heat slug is soldered to PCB

according to Jedec

thja

35 K/W

Thermal shutdown of VCC regulator 150 165 170 °C

Thermal shutdown of LIN output 150 165 170 °C

Thermal shutdown hysteresis 10 °C

9. Electrical Characteristics

5V < V

< 27V, –40°C < T

< 150°C, unless otherwise specified. All values refer to GND pins

No. Parameters Test Conditions Pin Symbol Min. Typ. Max. Unit Type*

1 VS Pin

1.1 Nominal DC voltage range VS V

527VA

1.2

Supply current in Sleep

Mode

Sleep Mode

LIN

> V

– 0.5V

< 14V (T

= 25°C)

VS I

VSsleep

31014µAA

Sleep Mode

LIN

> V

– 0.5V

< 14V (T

= 125°C)

VS I

VSsleep

51116µAA

Sleep Mode, V

LIN

= 0V

Bus shorted to GND

< 14V

VS I

VSsleep_short

TBD TBD 45 µA A

1.3

Supply current in Silent

Mode

Bus recessive

< 14V (T

= 25°C)

Without load at VCC

VS I

VSsi

30 40 50 µA A

Bus recessive

< 14V (T

= 125°C)

Without load at VCC

VS I

VSsi

30 40 50 µA A

Silent Mode

< 14V

Bus shorted to GND

Without load at VCC

VS I

VSsi_short

TBD TBD 80 µA A

1.4

Supply current in Normal

Mode

Bus recessive

< 14V

Without load at VCC

VS I

VSrec

0.3 0.8 mA A

1.5

Supply current in Normal

Mode

Bus recessive

< 14V

load current 50 mA

VS I

VSdom

50 53 mA A

1.6

Supply current in Fail-safe

Mode

Bus recessive, RXD is low

< 14V

Without load at VCC

VS I

VSfail

0.8 1.5 mA A

1.7 VS undervoltage threshold

Switch to Unpowered Mode VS V

SthU

44.24.4VA

Switch to Fail-safe Mode VS V

SthF

4.3 4.5 4.9 V A

1.8

VS undervoltage threshold

hysteresis

VS V

Sth_hys

0.3 V A

*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter

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