Power Consumption Tqmls1028A; Power Consumption Rtc; Voltage Monitoring; Interfaces To Other Systems And Devices - TQ-Systems TQMLS1028A User Manual

4.12

Power consumption TQMLS1028A

The power consumption of the TQMLS1028A strongly depends on the application, the mode of operation and the operating
system. For this reason the given values have to be seen as approximate values.
Current peaks of 3.5 A may occur. The carrier board power supply should be designed for a TDP of 13.5 W.
The following table shows power consumption parameters of the TQMLS1028A measured at +25 °C.
Table 9: TQMLS1028A power consumption
Mode of operation
RESET
U-Boot idle
Linux idle
Linux 100 % load
4.13

Power consumption RTC

Table 10: RTC power consumption
Mode of operation
V , I C RTC PCF85063A active
2
BAT
I , I C RTC PCF85063A active
2
BAT
V , I 2 C RTC PCF85063A inactive
BAT
I , I C RTC PCF85063A inactive
2
BAT
4.14

Voltage monitoring

The permitted voltage ranges are given by the data sheet of the respective component and, if applicable, the voltage monitoring
tolerance. Voltage monitoring is an assembly option.
4.15

Interfaces to other systems and devices

4.15.1

Secure Element SE050

A Secure Element SE050 is available as assembly option.
All six signals of ISO_14443 (NFC Antenna) and ISO_7816 (Sensor Interface) provided by the SE050 are available.
The ISO_14443 and ISO_7816 signals of the SE050 are multiplexed with the SPI bus and JTAG signal TBSCAN_EN#, see Table 13.
Figure 12: Block diagram SE050
(Source: NXP)
The I2C address of the Secure Element is 0x48 / 100 1000b.

3: stressapptest -M 512 -m 8 -C 8 -W -s 54000 --printsec 5
User's Manual l TQMLS1028A UM 0101 l © 2020, TQ-Systems GmbH
Current @ 5 V Power @ 5 V
0.46 A
1.012 A
1.02 A
1.21 A
2.3 W Reset button on MBLS1028A pressed
5.06 W –
5.1 W –
6.05 W Stress test
3
Min. Typ.
1.8 V 3 V
– 18 µA
0.9 V 3 V
– 220 nA
Page 17
Remark
Max.
4.5 V
50 µA
4.5 V
600 nA