Pwr_Safe Signal Pin#9 - Safran LRF 7047 Manual

LRF 7047- Integrator Manual

5.9 PWR_SAFE signal pin#9

The use of this signal is required for reaching the "OFF Mode" (lowest power consumption mode). If the
"OFF Mode" is not consider by the integrator or unused, leave the pin#9 floating.
The PWR_SAFE (pin#9) signal acts like a shutdown pin. When a rising edge is detected on the
PWR_SAFE (pin#9), the module will turn onto the "OFF Mode" and will reach the lowest power
consumption.
When the PWR_SAFE (pin#9) is set to GND or left floating the module goes into "Normal operating
Mode".
Figure 24: PWR_SAFE signal and operating mode selection
There is a second way to bring the device into "Normal operating mode". When the device is in "OFF
Mode", it can set to "Normal operating mode" when it receives any character over RS232_RX pin#21.
From the "Normal operating Mode", the module can reach the "OFF Mode" using the corresponding
command, see 6.5.6 Operating mode selection (to "OFF Mode").
Figure 25: PWR_SAFE signal and awaking commands
914929_TML_LRF7047_en_Version B Public: 04.2019
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