DRV8702D-Q1 Datasheet, PDF (41/66 Pages) Texas Instruments – Automotive Half-Bridge Gate Driver

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7.6 Register Maps
Register
Name
FAULT Status
VDS and GDF
Main
IDRIVE and WD
VDS
Config
7
6
FAULT
WDFLT
RESERVED
RESERVED
TDEAD
SO_LIM
TOFF
DRV8702D-Q1, DRV8703D-Q1
SLVSDX8 – MARCH 2017
DRV8703D-Q1 Memory Map
5
GDF
H_GDF
WD_EN
VDS
CHOP_IDS
4
3
2
OCP
VM_UVFL
VCP_UVFL
L_GDF
RESERVED
LOCK
IN1
WD_DLY
RESERVED
VREF_SCL
SH_EN
1
0
OTSD
OTW
H_VDS
L_VDS
IN2
CLR_FLT
IDRIVE
DIS_H_VDS DIS_L_VDS
GAIN_CS
Access
Type
R
R
RW
RW
RW
RW
Address
(Hex)
0
1
2
3
4
5
Table 13. Access Type Codes
Access Type
Read Type
R
Write Type
W
Code
R
W
Description
Read
Write
7.6.1 Status Registers
The status registers are used to report warning and fault conditions. Status registers are read only registers.
Table 14 lists the memory-mapped registers for the status registers. All register offset addresses not listed in
Table 14 should be considered as reserved locations and the register contents should not be modified.
Address
0x00h
0x01h
Table 14. Status Registers Summary Table
Register Name
FAULT status
VDS and GDF status
Section
Go
Go
7.6.1.1 FAULT Status Register (address = 0x00h)
FAULT status is shown in Figure 47 and described in Table 15.
Return to Summary Table.
Read only
Figure 47. FAULT Status Register
7
FAULT
R-0b
6
WDFLT
R-0b
5
GDF
R-0b
4
OCP
R-0b
3
VM_UVFL
R-0b
2
VCP_UVFL
R-0b
1
OTSD
R-0b
0
OTW
R-0b
Bit Field
7
FAULT
6
WDFLT
5
GDF
4
OCP
3
VM_UVFL
2
VCP_UVFL
1
OTSD
0
OTW
Table 15. FAULT Status Field Descriptions
Type
R
R
R
R
R
R
R
R
Default
0b
0b
0b
0b
0b
0b
0b
0b
Description
Logic OR of the FAULT status register excluding the OTW bit
Watchdog time-out fault
Indicates gate drive fault condition
Indicates VDS monitor overcurrent fault condition
Indicates VM undervoltage lockout fault condition
Indicates charge-pump undervoltage fault condition
Indicates overtemperature shutdown
Indicates overtemperature warning
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