ZHCSKM5 December 2019 TAS2110
PRODUCTION DATA.
A 10-bit SAR ADC monitors VBAT voltage VBAT_CNV and die temperature TMP_CNV. VBAT voltage conversions are also used by the limiter and brown out prevention features.
Actual VBAT voltage is calculated by dividing the VBAT_CNV register by 64. Actual die temperature is calculated by subtracting 93 from TMP_CNV register. The battery voltage VBAT can be filtered using VBAT_FLT register but will increase the latency. The VBAT_CNV registers should be read VBAT_MSB followed by VBAT_LSB.
VBAT_FLT[0] | FILTER POLE |
---|---|
0
|
100 kHz (default) |
1
|
Bypass |
VBAT_CNV[9:0] | VBAT VOLTAGE (V) |
---|---|
0x000
|
0 V |
0x001
|
0.0156 V |
...
|
... |
0x100
|
4.0 V |
...
|
... |
0x17F
|
5.9844 V |
0x180
|
6.0 V |
TMP_CNV[7:0] | DIE TEMPERATURE (°C) |
---|---|
0x00-0x52
|
Invalid |
0x53
|
-40 °C |
...
|
... |
0x76
|
25 °C |
...
|
... |
0xF3
|
150 °C |
0xF4-0xFF
|
Invalid |