AS3715 datasheet(69/159 Pages) AMSOSRAM

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[v1-03] 2015-Aug-10

AS3715 − Detailed Description – System Functions

Q32k Output

When selected the GPIOx will provide the internal 32kHz

oscillator frequency. The gpioX_mode should be set to output.

Watchdog Input

When pulling the GPIO high the watchdog will be triggered to

avoid a reset cycle initiated by the watchdog. The gpioX_mode

should be set to input.

SU1 OC Output

This output signal can be used to control an external disconnect

transistor if SU1 detects an over current condition. The

gpioX_mode should be set to output.

Charger Active Output

When selected, the GPIOx will go high if the charger is active.

The gpioX_mode should be set to output.

EOC Output

When selected, the GPIOx will go high if the charger has reached

the EOC state. The gpioX_mode should be set to output.

100/900mA Charger Input

With this function the charger input current limiter can be set

to 100 or 900mA (low power or high power USB limit). The

gpioX_mode should be set to input.

900mA/2.5A Charger Input

With this function the charger input current limiter can be set

to 900mA or 2.5A (high power USB limit or full current enabled).

The gpioX_mode should be set to input.

Charging Enable Input

When pulling the GPIO to high the charger is being enabled and

vice versa. This is to enable the charger without I²C

communication. The gpioX_mode should be set to input.

PWM Output

The GPIO block includes an internal programmable PWM

generator (can be connected to any of the GPIO outputs). Its

timing is defined by pwm_h_time, pwm_l_time and pwm_div.

The gpioX_mode should be set to output.

AS3715 Datasheet(PDF) 69 Page - ams-OSRAM AG