ISL28023 Datasheet, PDF (22/55 Pages) Intersil Corporation – Bidirectional current sensing

ISL28023
Typical Performance Curves T_A = +25°C, VCC = 3.3V, VINP = VBUS = 12V, AUXP = AUXV = 3V,
VSHUNT = VAUXSHUNT = 80mV, Conversion Time: Aux = Primary = 2.05ms, Internal AVG Aux = Primary = 128; unless otherwise specified. (Continued)
0
-2
-4
-6
MODE = Nmrl+OC ^{MODE = Nmrl}
-8
-10
-12
0
8
16 24 32 40 48 56 64
CMV (V)
FIGURE 63. PRIMARY V_SHUNT BIAS CURRENT vs COMMON-MODE
VOLTAGE
0.001
0
MODE = ADC PD
-0.001
-0.002
-0.003
-0.004
MODE = PD
-0.005
-0.006
-0.007
0
8
16 24 32 40 48 56 64
CMV (V)
FIGURE 64. PRIMARY V_SHUNT BIAS CURRENT vs COMMON-MODE
VOLTAGE (POWER-DOWN MODES)
5
0
-5
-10
MODE = Nmrl+OC
-15
-20
MODE = Nmrl
-25
-30
-35
-40
0
8
16 24 32 40 48 56 64
CMV (V)
FIGURE 65. PRIMARY V_SHUNT OFFSET CURRENT vs COMMON-MODE
VOLTAGE
1.0
0.8
0.6
0.4
0.2
MODE = PD
0
-0.2
-0.4
-0.6
MODE = ADC PD
-0.8
-1.0
0
8
16 24 32 40 48 56 64
CMV (V)
FIGURE 66. PRIMARY V_SHUNT OFFSET CURRENT vs COMMON-MODE
VOLTAGE (POWER-DOWN MODES)
0
V_CC = 6V
-0.5
V_CM = 3.3V
-1.0
-1.5
MODE = Nmrl
-2.0
-2.5
MODE = ADCPD
-3.0
-3.5
-60 -40 -20
0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
FIGURE 67. AUXILIARY V_SHUNT BIAS CURRENT vs TEMPERATURE
20
V_CC = 6V
15
V_CM = 3.3V
10 MODE = Nmrl
5
0
-5
MODE = ADCPD
-10
-15
-20-60 _{-40 -20 0 20 40 60 80 100 120 140 160}
TEMPERATURE (°C)
FIGURE 68. AUXILIARY V_SHUNT BIAS CURRENT OFFSET vs
TEMPERATURE
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FN8389.5
March 18, 2016