I am using a 4S LIPO-battery and a commercial constant current LED driver to drive a LED setup. Data Sheet for the driver
To avoid abusing the LIPO battery, I would like to build a low-battery cut-off using the driver's on-board dimming input. The driver has both PWM and analog dimming inputs.
As for analog dimming input, the signal voltages are as follows:
0 ... 0.2V -> the driver shuts off (battery voltage 13.0 or below)
0.2V ... 1.3V -> dimming in function (battery voltage 13.0 ... 13.5V)
1.3V ... 8.0V -> LED driver in 100 % (battery voltage 13.5V or more)
What kind of circuitry would solve my case here?