UCD3138_16 Datasheet, PDF (24/89 Pages) Texas Instruments – Highly Integrated Digital Controller for Isolated Power

UCD3138
SLUSAP2G – MARCH 2012 – REVISED SEPTEMBER 2016
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5.9 Typical Temperature Characteristics
2.1
1.81
2
1.79
1.9
1.77
1.8
1.75
1.7
1.6
−40 −20 0
20 40 60 80 100 120
Temperature (°C)
G005a
Figure 5-7. EADC LSB Size With 4X Gain (mV) vs Temperature
ADC12 Measurement Temperature Sensor Voltage
2.6
2.4
2.2
2.0
1.8
1.6
1.4
−60 −40 −20 0 20 40 60 80 100 120 140 160
Temperature (°C)
G006b
Figure 5-9. ADC12 Measurement Temperature Sensor Voltage vs
Temperature
ADC12 Temperature Sensor Measurement Error
8
1.73
Minimum
Maximum
1.71
Typical
-50
0
50
100
150
Temperature (ƒC)
C001
Figure 5-8. BP18 Voltage vs Temperature
2.515
2.510
2.505
2.500
ADC12 2.5-V Reference
2.495
2.490
2.485
2.480
2.475
−40 −20 0
20 40 60 80 100 120
Temperature (°C)
G003b
Figure 5-10. ADC12 2.5-V Reference vs Temperature
2.08
UCD3138 Oscillator Frequency
6
2.04
4
2
2
0
1.96
−2
−4
−40 −20 0
20 40 60 80 100 120
Temperature (°C)
G002b
Figure 5-11. ADC12 Temperature Sensor Measurement Error vs
Temperature
1.92
−40 −20 0
20 40 60 80 100 120
Temperature (°C)
G004b
Figure 5-12. UCD3138 Oscillator Frequency (2-MHz Reference,
Divided Down from 250 MHz) vs Temperature
24
Specifications
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