DRV8432_15 Datasheet, PDF (9/42 Pages) Texas Instruments – DRV84x2 Dual Full-Bridge PWM Motor Driver

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6.8 Typical Characteristics
100
90
80
70
60
50
40
30
20
10
0
0 50 100 150 200 250 300 350 400 450 500
Switching Frequency (kHz)
Full Bridge Load = 5 A
PVDD = 50 V
T_c = 75°C
DRV8412, DRV8432
SLES242G – DECEMBER 2009 – REVISED DECEMBER 2014
1.10
1.08
1.06
1.04
1.02
1.00
0.98
0.96
8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12
T_J = 25°C
Gate Drive (V)
Figure 1. Efficiency vs Switching Frequency (DRV8432)
1.6
1.4
1.2
1.0
0.8
0.6
0.4
–40 –20 0 20 40 60 80 100 120 140
T_J – Junction Temperature – ^oC
GVDD = 12 V
Figure 2. Normalized RDS(On) vs Gate Drive
6
5
4
3
2
1
0
–1
0
0.2 0.4 0.6 0.8
1
1.2
T_J = 25°C
Voltage (V)
Figure 3. Normalized Rds(On) vs Junction Temperature
Figure 4. Drain To Source Diode Forward On Characteristics
100
90
80
70
60
50
40
30
20
10
0
0 10 20 30 40 50 60 70 80 90 100
f_s = 500 kHz
Input Duty Cycle (%)
T_C = 25°C
Figure 5. Output Duty Cycle vs Input Duty Cycle
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