Rev 1, May-12-2016

- 4 -

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Copyright © 2016 Active-Semi, Inc.

ACT2803

PIN DESCRIPTIONS

PIN

NAME

DESCRIPTION

29

LED2

Battery level indicator.

30

LED3

Battery level indicator.

31

LED4

Battery level indicator.

32

LEDLS1

LED1 threshold level shift. Connect a resistor from the pin to AGND to shift LED1 threshold.

33

LEDLS2

LED2 threshold level shift. Connect a resistor from the pin to AGND to shift LED2 threshold.

34

LEDLS3

LED3 threshold level shift. Connect a resistor from the pin to AGND to shift LED3 threshold.

35

LEDLS4

LED4 threshold level shift. Connect a resistor from the pin to AGND to shift LED4 threshold.

36

PT

LED indication mode input. The 5 modes of LED indication patterns are set by a voltage at this

pin. Connect a resistor at the pin to set the voltage and an LED indication pattern .

37

RIMC

RIMC Battery impedance compensation input. Connect a resistor to this pin to offset the LED

thresholds in charge mode and discharge mode.

38

HYST

The hysteresis window setting input. Connect a resistor at the pin to set the hysteresis windows

for LED1, 2, 3, 4. In charge mode, LED thresholds moves up and in discharge mode, LED

thresholds moves down.

39

DM

Output port auto detection input. Connected to portable device D-.

40

DP

Output port auto detection input. Connected to portable device D+.

41

PGND

Exposed pad. Must be soldered to ground plane layer(s) on the PCB for best electrical and

thermal conductivity.