IC-JX_16 Datasheet, PDF (35/48 Pages) IC-Haus GmbH – 16-FOLD 24 V HIGH-SIDE DRIVER

iC-JX
16-FOLD 24 V HIGH-SIDE DRIVER WITH µC INTERFACE
Rev C2, Page 35/48
A/D converter data
A 10 bit digital value as a result of A/D conversion is
available for output currents and output voltages at a
selected I/O stage, for chip temperature and supply
voltages VB1..4 and the internal bandgap voltage VBG.
Except for the current measurement, the internal volt-
age V(Vrefad) or an external voltage at pin VREF are
used as reference. The reference source is configured
using SVREF.
D(9:2)
D(1:0)
Code
0x000
...
0xFFF
Addr. 0x0A; bit 7:0
Addr. 0x0B; bit 7:6
RESULT
D(9:0) * FACTOR_ADC
Table 13: A/D converter data: calculation of ADC result
voltage and current measurements
For the the digital representation of the measured volt-
ages and currents please refer to Tab. 14 and 15, for
the measured temperature refer to Tab. 16.
SVREF = 0, V(Vrefad) = 2.75V (Elec. Char. 747)
SELAD¹ = 0x1: Current measurement IO
EME
-
FACTOR_ADC
182.92*10^-3 mA
SELAD = 0x2: Voltage measurement high at IO
EME
FACTOR_ADC
0
0.726 mV
1
5,94 mV
SELAD = 0x3: Overall voltage measurement range at IO
EME
FACTOR_ADC
-
40.32 mV
SELAD = 0x4: Voltage measurement low at IO
EME
FACTOR_ADC
0
0.726 mV
1
5,94 mV
SELAD = 0x5: VB1..4 voltage measurement
EME
FACTOR_ADC
-
40.32 mV
SELAD = 0x6: VBG voltage measurement
EME
FACTOR_ADC
-
2,688 mV
Notes
1 _{Control Word 6, Addr. 0x1C}
The values are guide values, a reference
measurement is recommended.
Please take into account Elec. Char. 732- 746.
SVREF = 1, V(VREF) = 2.5V ±0.2%
SELAD¹ = 0x1: Current measurement IO
EME
-
FACTOR_ADC
187.5*10^-3 mA
SELAD = 0x2: Voltage measurement high at IO
EME
0
FACTOR_ADC
0.66 mV
1
5.4 mV
SELAD = 0x3: Overall voltage measurement range at IO
EME
-
FACTOR_ADC
36,65 mV
SELAD = 0x4: Voltage measurement low at IO
EME
0
FACTOR_ADC
0.66 mV
1
5.4 mV
SELAD = 0x5: VB1..4 voltage measurement
EME
-
FACTOR_ADC
36,65 mV
SELAD = 0x6: VBG voltage measurement
EME
-
FACTOR_ADC
2,443 mV
Notes
1 _{Control Word 6, Addr. 0x1C}
The values are guide values, a reference
measurement is recommended.
Please take into account Elec. Char. 717- 731.
Table 15: A/D converter data: Voltage/Current Mea-
surements, SVREF = 1
D(9:2)
Addr. 0x0A; bit 7:0
D(1:0)
Addr. 0x0B; bit 7:6
SVREF = 0, V(Vrefad) = 2.75V (Elec. Char. 747)
Code
Temperature
563
95°C
...
(774-D(9:0))/2.22^a
863
-40°C
SVREF = 1, V(VREF) = 2.5V ±0.2%
Code
Temperature
632
95°C
...
(861-D(9:0))/2.41^b
957
Note
-40°C
see Elec. char. ^a710, ^b712
Table 16: A/D converter data: Temperature Measure-
ment (SELAD = 0x7)
Table 14: A/D converter data: Voltage/Current Mea-
surements, SVREF = 0