DRV8702D-Q1 Datasheet, PDF (44/66 Pages) Texas Instruments – Automotive Half-Bridge Gate Driver

DRV8702D-Q1, DRV8703D-Q1
SLVSDX8 – MARCH 2017
www.ti.com
7.6.2.2 IDRIVE and WD Control Register Name (address = 0x03h)
IDRIVE and WD control is shown in Figure 50 and described in Table 19.
Return to Summary Table.
Read and write
Figure 50. IDRIVE and WD Register
7
6
TDEAD
R/W-00b
Bit Field
7-6 TDEAD
5
WD_EN
4-3 WD_DLY
2-0 IDRIVE
5
WD_EN
R/W-0b
4
3
WD_DLY
R/W-00b
2
1
0
IDRIVE
R/W-111b
Table 19. IDRIVE and WD Field Descriptions
Type
R/W
R/W
R/W
R/W
Default
00b
0b
00b
111b
Description
Dead time
00b = 120 ns
01b = 240 ns
10b = 480 ns
11b = 960 ns
Time-out of the watchdog timer
Enables or disables the watchdog timer (disabled by default)
00b = 10 ms
01b = 20 ms
10b = 50 ms
11b = 100 ms
Sets the peak source current and peak sink current of the gate
drive. Table 20 lists the bit settings.
Bit Value
000b
001b
010b
011b
100b
101b
110b
111b
Table 20. IDRIVE Bit Settings
Source Current
V_VM = 5.5 V
High-side: 10 mA
Low-side: 10 mA
V_VM = 13.5 V
High-side: 10 mA
Low-side: 10 mA
High-side: 20 mA
Low-side: 20 mA
High-side: 20 mA
Low-side: 20 mA
High-side: 50 mA
Low-side: 40 mA
High-side: 50 mA
Low-side: 45 mA
High-side: 70 mA
Low-side: 55 mA
High-side: 70 mA
Low-side: 60 mA
High-side: 100 mA
Low-side: 75 mA
High-side: 105 mA
Low-side: 90 mA
High-side: 145 mA
Low-side: 115 mA
High-side: 155 mA
Low-side: 130 mA
High-side: 190 mA
Low-side: 145 mA
High-side: 210 mA
Low-side: 180 mA
High-side: 240 mA
Low-side: 190 mA
High-side: 260 mA
Low-side: 225 mA
V_VM = 5.5 V
High-side: 20 mA
Low-side: 20 mA
High-side: 40 mA
Low-side: 40 mA
High-side: 90 mA
Low-side: 85 mA
High-side: 120 mA
Low-side: 115 mA
High-side: 170 mA
Low-side: 160 mA
High-side: 250 mA
Low-side: 235 mA
High-side: 330 mA
Low-side: 300 mA
High-side: 420 mA
Low-side: 360 mA
Sink Current
V_VM = 13.5 V
High-side: 20 mA
Low-side: 20 mA
High-side: 40 mA
Low-side: 40 mA
High-side: 95 mA
Low-side: 95 mA
High-side: 130 mA
Low-side: 125 mA
High-side: 185 mA
Low-side: 180 mA
High-side: 265 mA
Low-side: 260 mA
High-side: 350 mA
Low-side: 350 mA
High-side: 440 mA
Low-side: 430 mA
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