IP5568

V1.31

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Short press : pressed time in range of 60ms~2s

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Long press :pressed time longer than 2s

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No response on press time less than 30ms

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Long 10s press will reset the whole system

KEY_MODE

IP5568 outputs 20uA current on the key mode pin, and different resistance is connected externally to get different

voltage. Different key definition, led and nixie tube display can be selected for IC internal detection of key mode

voltage. Pay attention to 1% precision resistance for external resistance.

KEY_MODE pin

external

resistance

Key_mode

ideal

voltage（v）

KEY_MODE

voltage

range

(v)

KEY function definition

LED or nixie tube

display

20K

0.4

0~0.6

Short press: turn on

Double short press in 1s: turn off

Long press:turn on or turn off the

lighting

LED

51K

1.02

0.6~1.3

Short press: turn on

Double short press in 1s: no

definition

Long press: turn on or turn off

the lighting

LED

82K

1.64

1.3~2.1

Short press: turn on

Double short press in 1s: turn on

or turn off the lighting

Long press:no definition

LED

115K

2.3

>2.1

Short press: turn on

Double short press in 1s: turn on

or turn off the lighting

Long press:turn off

LED

In the nixie tube application, key_mode

pin is used as the driving pin of the nixie tube, and there is no key

mode selection. The default key mode is: short press to turn on, two consecutive short press to shut down, and

long press for 2s to turn on and off the flashlight.

In the application of wireless charging TX / Rx, the default key mode is: short press to turn on, double short press

in 1s to turn off, long press for 2s to switch between wireless charging and Rx, no flashlight application.

Fast Charge state indication

HLED is used for indication for the present fast charge mode, either in fast charging or discharging mode,

when the system enters fast charge mode and in non-5V mode, the light LED will turn on.