参数资料
型号: ADP1048ARQZ-R7
厂商: Analog Devices Inc
文件页数: 47/84页
文件大小: 0K
描述: IC DGTL PFC CTRLR 24QSOP
标准包装: 1
模式: 平均电流
频率 - 开关: 30kHz ~ 400kHz
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-SSOP(0.154",3.90mm 宽)
供应商设备封装: 24-QSOP
包装: 标准包装
其它名称: ADP1048ARQZ-R7DKR
Data Sheet
VOUT_SCALE_MONITOR REGISTER
This register sets the Kr factor = VOUT/VADC.
Table 24. Register 0x2A—VOUT_SCALE_MONITOR
ADP1047/ADP1048
Bits
[15:14]
[13:11]
10
[9:0]
Bit Name
RSVD
Exponent
RSVD
Mantissa
R/W
R
R/W
R
R/W
Description
Reserved.
Write the exponent (N) in twos complement format for Kr = Y × 2 N .
Always reads as 0.
Mantissa (Y[9:0]) used in Kr linear mode format (Kr = Y × 2 N ).
VIN_ON REGISTER
This register sets the value of the input voltage to start power conversion.
Table 25. Register 0x35—VIN_ON
Bits
[15:11]
Bit Name
Exponent
R/W
R
Description
Return the exponent (N) used in VIN linear mode format (X = Y × 2 N ). The exponent (N) is set in the
exponent register (Register 0xFE39, Bits[5:3]).
[10:8]
[7:0]
High bits
Low byte
R/W
R/W
Mantissa high bits (Y[10:8]) used in VIN linear mode format (X = Y × 2 N ).
Mantissa low byte (Y[7:0]) used in VIN linear mode format (X = Y × 2 N ). The exponent (N) is set in the
exponent register (Register 0xFE39, Bits[5:3]).
VIN_OFF REGISTER
This register sets the value of the input voltage to stop power conversion.
Table 26. Register 0x36—VIN_OFF
Bits
[15:11]
Bit Name
Exponent
R/W
R
Description
Return the exponent (N) used in VIN linear mode format (X = Y × 2 N ). The exponent (N) is set in the
exponent register (Register 0xFE39, Bits[5:3]).
[10:8]
[7:0]
High bits
Low byte
R/W
R/W
Mantissa high bits (Y[10:8]) used in VIN linear mode format (X = Y × 2 N ).
Mantissa low byte (Y[7:0]) used in VIN linear mode format (X = Y × 2 N ). The exponent (N) is set in the
exponent register (Register 0xFE39, Bits[5:3]).
VOUT_OV_FAULT_LIMIT REGISTER
This register sets the accurate overvoltage threshold measured at the PFC output that causes an overvoltage fault condition.
Table 27. Register 0x40—VOUT_OV_FAULT_LIMIT
Bits
[15:11]
Bit Name
Exponent
R/W
R
Description
Return the exponent (N) used in VOUT linear mode format (X = Y × 2 N ). The exponent (N) is set in
the VOUT_MODE register (Register 0x20, Bits[2:0]). The exponent is in twos complement format.
[10:8]
[7:0]
High bits
Low byte
R/W
R/W
Mantissa high bits (Y[10:8]) used in VOUT linear mode format (X = Y × 2 N ).
Mantissa low byte (Y[7:0]) used in VOUT linear mode format (X = Y × 2 N ).
VOUT_OV_FAULT_RESPONSE REGISTER
This register instructs the device on actions to take due to an output overvoltage fault condition.
Table 28. Register 0x41—VOUT_OV_FAULT_RESPONSE
Bits
[7:6]
Bit Name
Response
R/W
R/W
Description
These bits determine the device response to an output overvoltage fault condition.
Bit 7
Bit 6
Response
0
0
Do nothing.
0
1
Continue operation for the time specified by Delay Time 1 (Bits[2:0]). If the fault
persists, retry the number of times specified by the retry setting (Bits[5:3]).
1
1
0
1
Shut down, disable the output, and retry the number of times specified by the
retry setting (Bits[5:3]).
Disable the output and wait for the fault to clear. After the fault is cleared,
reenable the output.
Rev. 0 | Page 47 of 84
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