DRV8305_15 Datasheet, PDF (34/53 Pages) Texas Instruments – DRV8305 Three Phase Gate Driver With Current Shunt Amplifiers and Voltage Regulator

DRV8305
SLVSCX2A – AUGUST 2015 – REVISED SEPTEMBER 2015
www.ti.com
7.6.7 Control Registers
Control registers are used to set the user parameter for DRV8305. The default values are shown in bold.
• Control registers may be read and do not clear on read or EN_GATE resets
• Control registers are cleared to default values on power up
• Control registers are cleared to default values when the device enters SLEEP mode
7.6.7.1 HS Gate Driver Control (address = 0x5)
Table 14. HS Gate Driver Control Register Description
BIT
R/W
NAME
10
R/W
Reserved
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 - 250 ns
b'01 - 500 ns
b'10 - 1000 ns
b'11 - 2000 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
7.6.7.2 LS Gate Driver Control (address = 0x6)
Table 15. LS Gate Driver Control Register Description
BIT
R/W
NAME
10
R/W
Reserved
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 - 250 ns
b'01 - 500 ns
b'10 - 1000 ns
b'11 - 2000 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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