MAX4919B 데이터 시트보기 (PDF) - Maxim Integrated

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MAX4919B

Battery Power-Up Logic with Overvoltage and Overcurrent Protection

Maxim Integrated 

Battery Power-Up Logic with Overvoltage

and Overcurrent Protection

Typical Operating Characteristics (continued)

(VBTI = 4V, TA = +25°C, unless otherwise noted.)

UNDERVOLTAGE RESPONSE

MAX4919/20/21B toc10

MAX4919B

5V VADAPTER

(2V/div)

3V

5V VIN

3V (2V/div)

VGN1

(5V/div)

1µs/div

VACOK

(5V/div)

BATTERY-SWITCH TURN-ON RESPONSE

(PWR_ON RISING)

MAX4919/20/21B toc11

VPWR_ON

CBTI = CBTO = 0.1µF (5V/div)

VONK

(5V/div)

1ms/div

VBTI

(2V/div)

IBTI

(500mA/div)

BATTERY-SWITCH TURN-OFF RESPONSE

(PWR_ON FALLING)

MAX4919/20/21B toc12

CBTI = CBTO = 0.1µF VPWR_ON

(5V/div)

VONOK

(5V/div)

BATTERY-SWITCH TURN-ON RESPONSE

(HP_PWR RISING)

MAX4919/20/21B toc13

CBTI = CBTO = 0.1µF

VHP_PWR

(5V/div)

VBTI

(2V/div)

VBTO

(2V/div)

VBTO

(2V/div)

1ms/div

IBTO

(500mA/div)

200ms/div

IBTO

(500mA/div)

SHORT-CIRCUIT RESPONSE

MAX4919/20/21B toc14

CBTI = 47µF

CBTO = 0.1µF

VBTI

(2V/div)

2ms/div

VBTO

(2V/div)

IBTO

(10A/div)

BATTERY SWITCH TURN-ON RESPONSE

(PWR_ON AND PWR_HOLD RISING)

MAX4919/20/21B toc15

PWR_ON

(5V/div)

PWR_HOLD

(5V/div)

VBTO

(2V/div)

400ms/div

IBTO

(500mA/div)

6 _______________________________________________________________________________________

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