JAJSD42B February 2017 – December 2017 DRV8320 , DRV8320R , DRV8323 , DRV8323R
PRODUCTION DATA.
DRV832xファミリのデバイスは、VM低電圧、チャージ・ポンプ低電圧、MOSFET VDS過電流、ゲート・ドライバ短絡、および過熱状態から保護されています。
FAULT | CONDITION | CONFIGURATION | REPORT | GATE DRIVER | LOGIC | RECOVERY |
---|---|---|---|---|---|---|
VM undervoltage
(UVLO) |
VVM < VUVLO | — | nFAULT | Hi-Z | Disabled | Automatic:
VVM > VUVLO |
Charge pump undervoltage
(CPUV) |
VVCP < VCPUV | DIS_CPUV = 0b | nFAULT | Hi-Z | Active | Automatic:
VVCP > VCPUV |
DIS_CPUV = 1b | None | Active | Active | |||
VDS overcurrent
(VDS_OCP) |
VDS > VVDS_OCP | OCP_MODE = 00b | nFAULT | Hi-Z | Active | Latched:
CLR_FLT, ENABLE Pulse |
OCP_MODE = 01b | nFAULT | Hi-Z | Active | Retry:
tRETRY |
||
OCP_MODE = 10b | nFAULT | Active | Active | No action | ||
OCP_MODE = 11b | None | Active | Active | No action | ||
VSENSE overcurrent
(SEN_OCP) |
VSP > VSEN_OCP | OCP_MODE = 00b | nFAULT | Hi-Z | Active | Latched:
CLR_FLT, ENABLE Pulse |
OCP_MODE = 01b | nFAULT | Hi-Z | Active | Retry:
tRETRY |
||
OCP_MODE = 10b | nFAULT | Active | Active | No action | ||
OCP_MODE = 11b or DIS_SEN = 1b | None | Active | Active | No action | ||
Gate driver fault
(GDF) |
Gate voltage stuck > tDRIVE | DIS_GDF = 0b | nFAULT | Hi-Z | Active | Latched:
CLR_FLT, ENABLE Pulse |
DIS_GDF = 1b | None | Active | Active | No action | ||
Thermal warning
(OTW) |
TJ > TOTW | OTW_REP = 0b | None | Active | Active | No action |
OTW_REP = 1b | nFAULT | Active | Active | Automatic:
TJ < TOTW – THYS |
||
Thermal shutdown
(OTSD) |
TJ > TOTSD | — | nFAULT | Hi-Z | Active | Automatic:
TJ < TOTSD – THYS |