DRV8305_16 Datasheet, PDF (39/59 Pages) Texas Instruments – Three Phase Gate Driver

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DRV8305
SLVSCX2B – AUGUST 2015 – REVISED FEBRUARY 2016
7.6.2 Control Registers
Control registers are used to set the device parameters for DRV8305-Q1. The default values are shown in bold.
• Control registers are read/write registers
• Do not clear on register read, CLR_FLTs, or EN_GATE resets
• Cleared to default values on power up
• Cleared to default values when the device enters SLEEP mode
7.6.2.1 HS Gate Drive Control (Address = 0x5)
Table 13. HS Gate Driver Control Register Description
BIT
R/W
NAME
10
R/W
RSVD
9:8
R/W
TDRIVEN
7:4
R/W
IDRIVEN_HS
3:0
R/W
IDRIVEP_HS
DEFAULT
0x0
0x3
0x4
0x4
DESCRIPTION
-
High-side gate driver peak source time
b'00 - 220 ns
b'01 - 440 ns
b'10 - 880 ns
b'11 - 1780 ns
High-side gate driver peak sink current
b'0000 - 20 mA
b'0100 - 60 mA
b'1000 - 0.50 A
b'1100 - 60 mA
b'0001 - 30 mA
b'0101 - 70 mA
b'1001 - 0.75 A
b'1101 - 60 mA
b'0010 - 40 mA
b'0110 - 80 mA
b'1010 - 1.00 A
b'1110 - 60 mA
High-side gate driver peak source current
b'0000 - 10 mA
b'0100 - 50 mA
b'1000 - 0.25 A
b'1100 - 50 mA
b'0001 - 20 mA
b'0101 - 60 mA
b'1001 - 0.50 A
b'1101 - 50 mA
b'0010 - 30 mA
b'0110 - 70 mA
b'1010 - 0.75 A
b'1110 - 50 mA
b'0011 - 50 mA
b'0111 - 0.25 A
b'1011 - 1.25 A
b'1111 - 60 mA
b'0011 - 40 mA
b'0111 - 0.125 A
b'1011 - 1.00 A
b'1111 - 50 mA
7.6.2.2 LS Gate Drive Control (Address = 0x6)
Table 14. LS Gate Driver Control Register Description
BIT
R/W
NAME
10
R/W
RSVD
9:8
R/W
TDRIVEP
7:4
R/W
IDRIVEN_LS
3:0
R/W
IDRIVEP_LS
DEFAULT
0x0
0x3
0x4
0x4
DESCRIPTION
-
Low-side gate driver peak source time
b'00 - 220 ns
b'01 - 440 ns
b'10 - 880 ns
b'11 - 1780 ns
Low-side gate driver peak sink current
b'0000 - 20 mA
b'0100 - 60 mA
b'1000 - 0.50 A
b'1100 - 60 mA
b'0001 - 30 mA
b'0101 - 70 mA
b'1001 - 0.75 A
b'1101 - 60 mA
b'0010 - 40 mA
b'0110 - 80 mA
b'1010 - 1.00 A
b'1110 - 60 mA
Low-side gate driver peak source current
b'0000 - 10 mA
b'0100 - 50 mA
b'1000 - 0.25 A
b'1100 - 50 mA
b'0001 - 20 mA
b'0101 - 60 mA
b'1001 - 0.50 A
b'1101 - 50 mA
b'0010 - 30 mA
b'0110 - 70 mA
b'1010 - 0.75 A
b'1110 - 50 mA
b'0011 - 50 mA
b'0111 - 0.25 A
b'1011 - 1.25 A
b'1111 - 60 mA
b'0011 - 40 mA
b'0111 - 0.125 A
b'1011 - 1.00 A
b'1111 - 50 mA
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