5.2.2 GDU OPERATION MODES
(Submit Feedback)- GDU OFF mode: VG, VCP and Gate Control are deactivated.
- GDU Standby mode: VG and VCP are active as long as VS undervoltage has not been detected.
- GDU Normal mode: VG, VCP and Gate Control are active. Also, if selected, Back-EMF is active. The state diagram is illustrated below.
- a: Power-on Reset
- b: Device in Power Off ( VVS < VVS_PowerOFF )
- c: VVG < VVGS_UV_Set ‖ ( VVCP -VVDH) < VVGS_UV_Set, when VGS undervoltage monitoring is active.
- d: No VG and VCP undervoltage detected
- e: VVS < VVS_UV_Set
- f: No VS undervoltage detected
- g: Any GDU related failure registered (overcurrent with ILIMSDEN=1 and/or short-circuit event with SCSDEN=1 and/or overtemperature shutdown, etc.)
- h: GDUOPM = GDU OFF mode
- i: GDUOPM = GDU Standby mode
- j: GDUOPM = GDU Normal mode and device is in Normal mode
- k: DOPM = Normal mode
- o: Device is in Deep Sleep mode
- p: VDH overvoltage & VDHOVSD = 1
Note:
- VG and VCP are enabled at GDU transition from Off to Standby (default). The DSR1.GDUS flag is available if GDUOPM = Normal.
- CSA1/2/3 is available when DOPMCR.DOPM = Normal and CSCR.CSA1/2/3EN bits are activated.
- GDU = Normal mode can be written in any state of DOPM, but it will not be active if DOPM is switched in Normal mode while GDU = Normal. To activate the GDU, it is necessary to manually switch the GDU back into Standby and then into Normal.