ADP1048 Analog Devices, ADP1048 Datasheet - Page 58

• Manufacturer Part Number: ADP1048
• Description: Digital Power Factor Correction Controller with accurate AC Power Metering
• Manufacturer: Analog Devices

ADP1047/ADP1048
CS_FAST_OCP_RESPONSE REGISTER
This register instructs the device on actions to take due to a fast overcurrent protection condition.
Table 62. Register 0xFE00—CS_FAST_OCP_RESPONSE
Bits
[7:6]
[5:4]
[3:0]
OVP_FAST_OVP_RESPONSE REGISTER
This register instructs the device on actions to take due to a fast overvoltage fault condition.
Table 63. Register 0xFE01—OVP_FAST_OVP_RESPONSE
Bits
[7:6]
[5:0]
OLP_RESPONSE REGISTER
This register instructs the device on actions to take due to an open-loop fault condition.
Table 64. Register 0xFE02—OLP_RESPONSE
Bits
[7:6]
[5:0]
Bit Name
Response
N-time
RSVD
Bit Name
Response
RSVD
Bit Name
Response
RSVD
R/W
R/W
R/W
R
R/W
R/W
R
R/W
R/W
R
Description
These bits determine the device response to a fast overcurrent protection condition.
Bit 7
0
0
1
1
These bits determine the number of switching cycles allowed before the device disables the PWM
output after a fast overcurrent condition is detected.
Bit 5
0
0
1
1
Reserved.
Description
These bits determine the device response to a fast overvoltage condition.
Bit 7
0
0
1
1
Reserved.
Description
These bits determine the device response to an open-loop fault condition.
Bit 7
0
0
1
1
Reserved.
Bit 6
0
1
0
1
Bit 4
0
1
0
1
Bit 6
0
1
0
1
Bit 6
0
1
0
1
Response
Ignore (still terminate the PWM pulse).
Allow the number of switching cycles specified in Bits[5:4], then shut down and
soft start (use the soft start delay time specified in Register 0x5C, Bits[2:0]).
Allow the number of switching cycles specified in Bits[5:4] (terminating the PWM
pulse each time), then shut down and wait for the PSON signal to soft start.
Disable the PWM output after the number of switching cycles specified in Bits[5:4]
and wait for the flag to be cleared.
Number of Switching Cycles
1
2
4
8
Response
Ignore (do nothing; PWM continues).
Shut down and soft start.
Shut down immediately and wait for the PSON signal.
Disable the PWM output until the unlatched flag is cleared.
Response
Ignore (do nothing; PWM continues).
Shut down and soft start.
Shut down immediately and wait for the PSON signal.
Disable the PWM output until the unlatched flag is cleared.
Rev. 0 | Page 58 of 84
Data Sheet