MAX8934A データシートの表示（PDF） - Maxim Integrated

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MAX8934A

Dual-Input Linear Chargers, Smart Power Selector with Advanced Battery Temperature Monitoring

Maxim Integrated 

Dual-Input Linear Chargers, Smart Power Selector

with Advanced Battery Temperature Monitoring

Typical Operating Characteristics (continued)

(MAX8934A, TA = +25NC, circuit of Figure 2, VDC = 6V, VBATT = 3.6V, thermistor Beta = 3964, unless otherwise noted. Negative bat-

tery current indicates charging.)

VBATT

VSYS

IDC

DC CONNECT WITH NO

USB (RSYS = 22I)

MAX8934A/B/C toc20

3.6V

3.5V

5V

5V/div

5V/div

CDC CHARGING

0A

1.2A

1A/div

VBATT

VSYS

IDC

DC DISCONNECT WITH NO

USB (RSYS = 22I)

MAX8934A/B/C toc21

3.6V

3.5V

5V/div

5V/div

1A

1A/div

0A

160mA

IBATT

0mA

BATTERY CHARGER

SOFT-START

400Fs/div

1A/div

-1A

IBATT

-820mA

-IBATT = CHARGING

400Fs/div

160mA

1A/div

USB CONNECT WITH NO

VUSB

DC (RSYS = 22I)

MAX8934A/B/C toc22

5V CSYS CHARGING

5V/div

500mA/div

IUSB 0A

475mA

VSYS 3.6V

CUSB CHARGING

5V

4.2V

5V/div

VUOK

VCHG

IBATT

3.3V

3.3V

+160mA

BATTERY

CHARGER SOFT-START

200Fs/div

5V/div

5V/div

-260mA 500mA/div

USB DISCONNECT WITH NO

DC (RSYS = 22I)

MAX8934A/B/C toc23

VUSB 5V

IUSB 475mA

5V/div

3V

0mA

500mA/div

VSYS

3.9V

3.6V

VUOK

VCHG

IBATT -260mA

3.3V

3.3V

+160mA

5V/div

5V/div

5V/div

500mA/div

200Fs/div

VUSUS

USB SUSPEND (RSYS = 22I)

MAX8934A/B/C toc24

0V

3V

5V/div

IUSB 475mA

0A

4.2V

3.2V

VSYS

500mA/div

5V/div

VCHG

IBATT

3.3V

0A

200Fs/div

5V/div

3.3V

VUSB = 5V

500mA/div

VUSUS

USB RESUME (RSYS = 22I)

MAX8934A/B/C toc25

3V

0V

5V/div

IUSB 0A

4.6V

3.3V

VSYS

VCHG 3.3V

475mA

4.2V

500mA/div

5V/div

5V/div

0A

IBATT

BATTERY

CHARGER SOFT-START

200Fs/div

500mA/div

VUSB = 5V

______________________________________________________________________________________   11

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