MAX8934G 查看數據表（PDF） - Maxim Integrated

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产品描述 (功能)

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MAX8934G

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

Maxim Integrated 

Dual-Input Linear Charger, Smart Power Selector

with Advanced Battery Temperature Monitoring

Typical Operating Characteristics (continued)

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

indicates charging.)

VBATT

VSYS

IDC

DC DISCONNECT WITH NO USB

(RSYS = 22I)

MAX8934G toc21

3.6V

4V

3.6V

5V/div

5V/div

1.2A

1A/div

0A

IBATT

-1A

-IBATT = CHARGING

160mA

200µs/div

1A/div

USB CONNECT WITH NO DC

VUSB

(RSYS = 22I)

5V

MAX8934G toc22

5V/div

IUSB

475mA

500mA/div

CSYS CHARGING

CDC CHARGING

VSYS

3.3V

VUOK

3.3V

VCHG

3.3V

IBATT -150mA

4.3V

3.7V

5V/div

5V/div

BATTERY CHAR-G1EAR

SOFT-START -307mA

5V/div

500mA/div

200µs/div

USB DISCONNECT WITH NO DC

VUSB

(RSYS = 22I)

4.2V

MAX8934G toc23

0V

5V/div

IUSB 475mA

500mA/div

0mA

VSYS

3.7V

VUOK

VCHG

3.6V

3.3V

3.3V

5V/div

5V/div

5V/div

IBATT -307mA

160mA

500mA/div

200µs/div

VUSUS

IUSB

VSYS

USB SUSPEND (RSYS = 22I)

MAX8934G toc24

0V

3.3V

5V/div

475mA

0A

500mA/div

3.7V

3.6V

5V/div

VCHG

3.3V

5V/div

IBATT

-307mA

160mA

200µs/div

500mA/div

VUSB = 5V

VUSUS

IUSB

VSYS

VCHG

IBATT

USB RESUME (RSYS = 22I)

MAX8934G toc25

3V

0V

5V/div

0A

3.6V

4.3V

475mA

3.7V

500mA/div

5V/div

3.3V

160mA

BATTERY CHARGER

SOFT-START -307mA

VUSB = 5V

5V/div

500mA/div

200µs/div

LDO OUTPUT VOLTAGE vs. LDO OUTPUT

CURRENT (USB DISCONNECTED)

3.35

VBATT = 4.0V

3.30

3.25

DC UNCONNECTED

3.20

VDC = 5.0V

3.15

3.10

3.05

3.00

2.95

0

25 50 75 100 125 150 175

LDO OUTPUT CURRENT (mA)

_______________________________________________________________________________________   9

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