DRV411_15 Datasheet, PDF (6/34 Pages) Texas Instruments – Sensor Signal Conditioning IC for Closed-Loop Magnetic Current Sensors

DRV411
SBOS693B – AUGUST 2013 – REVISED DECEMBER 2013
TYPICAL CHARACTERISTICS
At V_DD = 5 V and T_A = +25 °C, unless otherwise noted.
5.0
1.10
www.ti.com
4.0
V_DD
3.0
V_(ICOMP1)
2.0
1.0
V_EX
V_(ICOMP2)
0.0
Time (50 µs/div)
C036
Figure 1. START-UP BEHAVIOR
900
880
860
840
GSEL [00,01,10]
820
800
780
760
GSEL [1,1]
740
720
700
-50 -30 -10 10 30 50 70 90 110 130 150
Temperature (ºC)
C00
Figure 3. HALL SENSOR EXCITATION VOLTAGE vs
TEMPERATURE
600
550
500
450
400
350
300
250
200
150
100
50
0
Excitation Switching Frequency (MHz)
C00
Figure 5. EXCITATION SWITCHING FREQUENCY
HISTOGRAM
1.05
1.00
0.95
Core Impedance 50 mH
0.90
10
100
1k
10k
100k
Frequency (Hz)
C037
Figure 2. FRONT-END GAIN FLATNESS vs FREQUENCY
600
500
400
300
200
100
0
Excitation Voltage V_EX (mV)
C002
Figure 4. HALL SENSOR EXCITATION VOLTAGE
HISTOGRAM
120
GSEL [1,0]
100
GSEL [0,1]
80
60
40
GSEL [0,0]
20
0
1
10
100
1k
10k
100k
Frequency (Hz)
C007
Figure 6. FRONT-END OPEN-LOOP GAIN vs FREQUENCY
6
Submit Documentation Feedback
Product Folder Links: DRV411
Copyright © 2013, Texas Instruments Incorporated