ATA6612 データシートの表示（PDF） - Atmel Corporation

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ATA6612

Microcontroller with LIN Transceiver, 5V Regulator and Watchdog

Atmel Corporation 

ATA6612/ATA6613

Figure 3-7. VCC Voltage Regulator: Ramp Up and Undervoltage Detection

VS

12V

5.5V/3.8V

VCC

5V/3.3V

Vthun

NRES

5V/3.3V

TVCC

TReset

t

Tres_f t

t

Figure 3-8.

Power Dissipation: Safe Operating Area versus VCC Output Current and Supply

Voltage VS at Different Ambient Temperatures Due to Rthja = 35 K/W

60

Tamb = 105°C

50

Tamb = 125°C

40

30

20

10

0

3

5

7

9

11

13

15

17

19

VS (V)

For programming purposes of the microcontroller it is potentially necessary to supply the VCC

output via an external power supply while the VS Pin of the system basis chip is disconnected.

This behavior is no problem for the system basis chip.

For programming purposes of the microcontroller it is potentially neccessary to supply the VCC

output via an external power supply while the VS Pin of the system basis chip is disconnected.

This behavior is no problem for the system basis chip.

17

9111G–AUTO–05/10

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