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參數(shù)資料
| 型號： | PIP8000FHN/N1 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC28 |
| 封裝： | 6 X 6 MM, 0.85 MM HEIGHT, PLASTIC, MO-220, SOT788-1, HVQFN-28 |
| 文件頁數(shù)： | 24/26頁 |
| 文件大?。?/td> | 126K |
| 代理商： | PIP8000FHN/N1 |
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PIP8000FHN_2
NXP B.V. 2009. All rights reserved.
Preliminary data sheet
Rev. 02 — 6 July 2009
7 of 26
NXP Semiconductors
PIP8000FHN
Digital power supervisor
7.4.3 Packet Error Check (PEC)
The PIP8000FHN supports SMBus PEC protocol dynamically. If a write command is sent
including a PEC the PIP8000FHN will use it to determine if the command was received
correctly. If no PEC is available it will check if the command is supported according to
Section 10.2 and processes it. If a read command is sent the PIP8000FHN will append
the PEC byte when the host reads more bytes than the return data.
7.4.4 Data formats
The PIP8000FHN supports Linear mode and Direct mode data formats. These modes can
be switched real time. However, they are typically selected at the beginning of the
application and stored in NVRAM. Table 4 shows which commands are affected by the
mode setting. From the table it can be noted that three modes are supported:
All data formats in Direct mode.
All data in Linear mode not using VOUT_MODE.
All data in Linear mode using VOUT_MODE for the VOUT related commands.
Table 4.
Modes for data formats
VOUT_MODE
CONFIG_COMMAND Mode
Don’t care
Bit[1] = 0
Direct mode for all commands
bits[7...5] NOT 000
Bit[1] = 1
Linear mode NOT using VOUT_MODE 5-bit
mantissa. Commands in Linear mode are:
PMBUS_VOUT_COMMAND
PMBUS_VOUT_MAX
PMBUS_VOUT_MARGIN_HIGH
PMBUS_VOUT_MARGIN_LOW
PMBUS_READ_VOUT
PMBUS_VOUT_TRIM
PMBUS_VOUT_CAL_OFFSET
PMBUS_VOUT_TRANSITION_RATE
PMBUS_VOUT_SCALE_LOOP
PMBUS_VOUT_SCALE_MONITOR
PMBUS_VOUT_OV_FAULT_LIMIT
PMBUS_VOUT_OV_WARN_LIMIT
PMBUS_VOUT_UV_WARN_LIMIT
PMBUS_VOUT_UV_FAULT_LIMIT
PMBUS_READ_IOUT
PMBUS_IOUT_CAL_GAIN
PMBUS_IOUT_CAL_OFFSET
PMBUS_IOUT_OC_FAULT_LIMIT
PMBUS_IOUT_OC_LV_FAULT_LIMIT
PMBUS_IOUT_OC_WARN_LIMIT
PMBUS_READ_VIN
PMBUS_VIN_ON
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