Rainbow-electronics ATA6626 Manual do Utilizador descarregar pdf (Página 8)

4970A–AUTO–01/07

ATA6621/22/24 Development Board

Figure 3-2, Figure 3-3 and Figure 3-4 show the maximum output current (I

max

) of the voltage

regulator as a function of the supply voltage (V

) at different coolings or thermal resistances

thJA

) of the external NPN transistor T1.

Figure 3-2. I

max

versus V

at R

thJA

= 80 K/W (No Additional Cooling)

Figure 3-3. I

max

versus V

at R

thJA

= 50 K/W (Additional Cooling)

Figure 3-4. I

max

versus V

at R

thJA

= 20 K/W (Additional Cooling)

100

150

200

250

300

350

10 12 14 16 18 20

(V)

max

(mA)

= 25˚C

= 85˚C

= 125˚C

(V)

max

(mA)

100

200

300

400

500

600

10 12 14 16 18 20

= 25˚C

= 85˚C

= 125˚C

(V)

max

(mA)

200

400

600

800

1000

1200

1400

10 12 14 16 18 20

= 125˚C

= 85˚C

= 25˚C

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 16 17

ATA6621/22/24 1
Development 1
Application Note 1
1.2 Quick Start 2
2. Hardware Description 3
2.7 Reset Output (NRES) 6
, Ch2: PV 10
Temperature (˚C) 11
ATA6621/ 12
ATA6622/ 12
4970A–AUTO–01/07 13
Transparent) 14
ATMEGA88 15
Regional Headquarters 17

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