DRV8305-Q1_16 Datasheet, PDF (40/54 Pages) Texas Instruments – Three-Phase Automotive Gate Driver

DRV8305-Q1
SLVSD12A – MAY 2015 – REVISED MARCH 2016
www.ti.com
7.6.2.3 Gate Drive Control (Address = 0x7)
Table 16. Gate Drive Control Register Description
BIT
R/W
NAME
10
R/W
VCPH_FREQ
9
R/W
COMM_OPTION
8:7
R/W
PWM_MODE
6:4
R/W
DEAD_TIME
3:2
R/W
TBLANK
1:0
R/W
TVDS
DEFAULT
0x0
0x1
0x0
0x1
0x1
0x2
DESCRIPTION
Reduce charge pump frequency center and spread
b'0 - Center = 518 kHz, Spread = 438 kHz - 633 kHz
b'1 - Center = 452 kHz, Spread = 419 kHz - 491 kHz
Rectification control (PWM_MODE = b'10 only)
b'0 - diode freewheeling
b'1 - active freewheeling
PWM Mode
b'00 - PWM with 6 independent inputs
b'01 - PWM with 3 independent inputs
b'10 - PWM with one input
b'11 - PWM with 6 independent inputs
Dead time
b'000 - 35 ns
b'011 - 440 ns
b'110 - 3520 ns
b'001 - 52 ns
b'100 - 880 ns
b'111 - 5280 ns
b'010 - 88 ns
b'101 - 1760 ns
VDS sense blanking
b'00 - 0 µs
b'01 - 1.75 µs
b'10 - 3.5 µs
b'11 - 7 µs
VDS sense deglitch
b'00 - 0 µs
b'01 - 1.75 µs
b'10 - 3.5 µs
b'11 - 7 µs
40
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