SJ-PM-TFmini-S A01 Product Manual
Benewake (Beijing) Co. Ltd.
Page10
4 Electrical Characteristics
Table 4: Major Electrical Parameters of TFmini-S
Description
Parameter value
Supply voltage
5V
±
0.1V
Average current
≤
140mA
Peak current
200mA
Average power
700mW
Communication level
LVTTL
（
3.3V
）
This product has no overvoltage nor polarity protection, so please make sure that connection and power
supply are normal. The fluctuation of the power supply voltage in a range of ±0.1V is allowable.
Average current varies along with the operating modes of the product in two patterns, more specifically, its
current is around 50mA under short distance mode and it is around
140mA
under long distance mode.
5 Line Sequence and Data Communication Protocol
5.1 Description about Line Sequence and Connection
Table5: The Function and Connection Description of each pin
No.
Color
Function
Comment
①
Black
GND
Ground
②
Red
+5V
Power supply
③
White
RXD/SDA
Receiving/Data
④
Green
TXD/SCL
Transmitting/Clock
Type of connecting terminal: GH1.25-4P. The product includes a 10cm long connecting wire, the other end
of which is a conventional 1.25-4p terminal (Molex510210400). The user may extend this wire as he/she
needs. In order to ensure effective data transmission, it is recommended that the length of the connecting
wire welded by the user should be less than 1m.
