Rainbow-electronics ATA6626 Manual de usuario descargar pdf (Pagina 9)

4970A–AUTO–01/07

ATA6621/22/24 Development Board

Figure 3-5 to Figure 3-10 on page 11 show some typical operating characteristics measured at

the ATA6621. The supply voltage V

is approximately a diode forward voltage lower than V

bat

(reverse battery protection). The external circuitry is shown in Figure 4-1 on page 12.

Figure 3-5. Output Voltage PV

versus Battery Voltage V

bat

at Startup

Figure 3-6. Output Voltage PV

versus Battery Voltage V

bat

at Different Output Currents

024681012

bat

(V)

ATA6621 with External Boosttransistor MJD31C

OUT

= 0

OUT

= 20 mA

bat

(V)

ATA6621 with External Boosttransistor MJD31C

4.990

4.995

5.000

5.005

5.0 10

5.0 15

5.020

01020304050

OUT

= 0

OUT

= 20 mA

OUT

= 100 mA

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Rainbow-electronics ATA6626 Manual de usuario Pagina 9