ISL28025 Datasheet, PDF (13/47 Pages) Intersil Corporation – Precision Digital Power Monitor with Real Time Alerts

ISL28025
Typical Performance Curves T_A = +25°C, V_CC = 3.3V, V_INP = V_BUS = 12V, Auxv = 3V, conversion time;
Aux = Primary = 2.05ms, Internal AVG Aux = Primary = 128, unless otherwise specified. (Continued)
0.5
0.4
0.3
V_CC = 3V + 3.3V
0.2
0.1
0
-0.1
-0.2
-0.3 _{VCC = 5V}
-0.4
-0.5
-0.08 -0.06 -0.04 -0.02 0
0.02 0.04 0.06 0.08
V_INPUT (V)
FIGURE 15. PRIMARY V_SHUNT MEASUREMENT ERROR vs INPUT
0.5
0.4
0.3
V_CC = 3.3V
0.2
0.1
0
-0.1
-0.2
V_CC = 5V
-0.3
V_CC = 3V
-0.4
-0.5
-60 -40 -20 0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
FIGURE 16. PRIMARY V_SHUNT MEASUREMENT ERROR vs
TEMPERATURE
1
-1
-3
-5
TIME = 0.256ms
-7
TIME = 0.512ms
-9
TIME = 1.024ms
-11 _{TIME = 2.048ms}
-13
50mV_P-P SINE WAVE
TIME = 0.64ms
TIME = 0.128ms
-15
10
100
1k
10k
FREQUENCY (Hz)
100k
FIGURE 17. PRIMARY V_SHUNT BANDWIDTH vs ADC TIMING
1
TIME = 0.64ms
-1
PRIMARY V_SHUNT
-3
PRIMARY V_BUS
-5
-7
-9
-11
-13
-15
10
100
1k
10k
FREQUENCY (Hz)
100k
FIGURE 18. PRIMARY V_SHUNT AND V_BUS vs FREQUENCY
10
9
V_INPUT = 25mV
8
7
6
5
4
3
2
1
0
V_OS (mV)
FIGURE 19. PRIMARY V_BUS V_OS
20
V_INPUT = 25mV
15
10
T = +125°C
5
0
-5 _{T = -40°C}
-10
T = +25°C
-15
-20
3.0
3.5
4.0
4.5
5.0
5.5
6.0
V_CC (V)
FIGURE 20. PRIMARY V_BUS V_OS vs V_CC
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FN8388.3
June 17, 2015