Power Conditioning - Garmin LIDAR-Lite v1 Silver Label Operating Manual

Power Conditioning
Multiple voltage references are required by various functions on the LIDAR­Lite board. The standard PIN
detector requires a DC bias voltage of roughly 8 V generated by an internal voltage multiplier. The use of
optional APD detector requires a temperature dependent bias from 100 V up to 240 V depending on the
selected detector. This voltage bias is varied based on the temperature compensation coefficient and is
applied through the external detector bias input pin. A factory modification is required to allow external
application of detector voltages above 30 V DC. A 3.7 V power supply is used by the receiver circuitry and
is enabled by the SPC. Transmitter circuitry typically uses the 5 V nominal supply voltage. By default the
power supply pin is coupled to the 5 V input through an isolation inductor. An enable pin allows the internal
3.3 V regulator to be disabled allowing very low power consumption under shutdown conditions.
LIDAR­Lite v1 "Silver Label" Manual​ , Updated: 08/13/15