DRV8305_16 Datasheet, PDF (37/59 Pages) Texas Instruments – Three Phase Gate Driver

www.ti.com
DRV8305
SLVSCX2B – AUGUST 2015 – REVISED FEBRUARY 2016
7.6.1 Status Registers
The status registers are used to report device warnings, fault conditions, and provide a means to prevent timing
out of the watchdog timer. Status registers are read only registers.
7.6.1.1 Warning and Watchdog Reset (Address = 0x1)
Table 9. Warning and Watchdog Reset Register Description
BIT
R/W
NAME
DEFAULT
DESCRIPTION
10
R
FAULT
0x0
Fault indication
9
R
RSVD
0x0
-
8
R
TEMP_FLAG4
0x0
Temperature flag setting for approximately 175°C
7
R
PVDD_UVFL
0x0
PVDD undervoltage flag warning
6
R
PVDD_OVFL
0x0
PVDD overvoltage flag warning
5
R
VDS_STATUS
0x0
Real time OR of all VDS overcurrent monitors
4
R
VCHP_UVFL
0x0
Charge pump undervoltage flag warning
3
R
TEMP_FLAG1
0x0
Temperature flag setting for approximately 105°C
2
R
TEMP_FLAG2
0x0
Temperature flag setting for approximately 125°C
1
R
TEMP_FLAG3
0x0
Temperature flag setting for approximately 135°C
0
R
OTW
0x0
Overtemperature warning
7.6.1.2 OV/VDS Faults (Address = 0x2)
Table 10. OV/VDS Faults Register Description
BIT
R/W
NAME
DEFAULT
DESCRIPTION
10
R
VDS_HA
0x0
VDS overcurrent fault for high-side MOSFET A
9
R
VDS_LA
0x0
VDS overcurrent fault for low-side MOSFET A
8
R
VDS_HB
0x0
VDS overcurrent fault for high-side MOSFET B
7
R
VDS_LB
0x0
VDS overcurrent fault for low-side MOSFET B
6
R
VDS_HC
0x0
VDS overcurrent fault for high-side MOSFET C
5
R
VDS_LC
0x0
VDS overcurrent fault for low-side MOSFET C
4:3
R
RSVD
0x0
-
2
R
SNS_C_OCP
0x0
Sense C overcurrent fault
1
R
SNS_B_OCP
0x0
Sense B overcurrent fault
0
R
SNS_A_OCP
0x0
Sense A overcurrent fault
Copyright © 2015–2016, Texas Instruments Incorporated
Product Folder Links: DRV8305
Submit Documentation Feedback
37