DRV421_16 Datasheet, PDF (12/44 Pages) Texas Instruments – Integrated Magnetic Fluxgate Sensor for Closed-Loop Current Sensing

DRV421
SBOS704B – MAY 2015 – REVISED MARCH 2016
Typical Characteristics (continued)
at V_DD = 5 V and T_A = +25°C (unless otherwise noted)
0.5
V_DD = 5.5 V
V_DD = 3.0 V
0.4
0.3
0.2
0.1
0
0 1 2 3 4 5 6 7 8 9 10
Output Current (mA)
D031
Figure 31. OR Pin Trip Level vs Output Current
4
3.75
3.5
3.25
3
2.75
2.5
2.25
2
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (°C)
D033
Figure 33. OR Pin Trip Delay vs Temperature
40
30
20
10
0
-10
-20
-30
-40
3
VOUT to GND
VOUT to VDD
3.5
4
4.5
5
Supply Voltage (V)
5.5
D035
Figure 35. Shunt Sense Amplifier Output Short-Circuit
Current vs Supply Voltage
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0.5
V_DD = 5.5 V
V_DD = 3.0 V
0.4
0.3
0.2
0.1
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (°C)
D032
Figure 32. OR Pin Trip Level vs Temperature
40
VOUT to GND
30
VOUT to VDD
20
10
0
-10
-20
-30
-40
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (°C)
D034
Figure 34. Shunt Sense Amplifier Output Short-Circuit
Current vs Temperature
0.25
0.2
0.15
0.1
0.05
0
-0.05
-0.1
-0.15
-0.2
-0.25
V_OUT
V_IN
-2.5 0 2.5 5 7.5 10 12.5 15 17.5
Time (Ps)
D048
Rising Edge
Figure 36. Shunt Sense Amplifier Small-Signal
Settling Time
12
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