参数资料
| 型号： | NCP4208MNR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 23/30页 |
| 文件大小： | 0K |
| 描述： | IC CTLR 8PH VR11.1 PMBUS 48-QFN |
| 标准包装： | 2,500 |
| 应用： | 控制器，Intel VR11.1 |
| 输入电压： | 4.7 V ~ 5.75 V |
| 输出数： | 8 |
| 输出电压： | 0.16 V ~ 5 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-VFQFN 裸露焊盘 |
| 供应商设备封装： | 48-QFN（7x7） |
| 包装： | 带卷 (TR) |
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NCP4208
Table 9. I 2 C Commands for the NCP4208
Cmd
Code
0x01
0x02
R/W
R/W
R/W
Default
0x80
0x17
Description
Operation
ON_OFF_Config
#
Bytes
1
1
Comment
00xx xxxx – Immediate Off
01xx xxxx – Soft Off
1000 xxxx – On (slew rate set by soft ? start) ? Default
1001 01xx – Margin Low (Ignore Fault)
1001 10xx – Margin Low (Act on Fault)
1010 01xx – Margin High (Ignore Fault)
1010 10xx – Margin High (Act on Fault)
Configures how the controller is turned on and off.
Bit
7:5
4
3
2
1
0
Default
000
1
0
1
1
1
Comment
Reserved for Future Use
This bit is read only. Switching starts when
commanded by the Control Pin and the
Operation Command, as set in Bits 3:0.
0: Unit ignores OPERATION commands over
the I 2 C interface
1: Unit responds to OPERATION command,
powerup may also depend upon Control input,
as described in Bit 2
0: Unit ignores EN pin
1: Unit responds EN pin, powerup may also
depend upon the Operation Register, as
described for Bit 3
Control Pin polarity
0 = Active Low
1 = Active High
This bit is read only.
1: means that when the controller is disabled it
will either immediately turn off or soft off (as set
in the Operation Command)
0x03
0x10
W
R/W
NA
0x00
Clear_Faults
Write Protect
0
1
Writing any value to this command code will clear all Status Bits
immediately. The SMBus ALERT is deasserted on this command. If the
fault is still present the fault bit shall immediately be asserted again.
The Write_Protect command is used to control writing to the I 2 C
device. There is also a lock bit in the Manufacture Specific Registers
that once set will disable writes to all commands until the power to
the NCP4208 is cycled.
Data Byte
1000 0000
0100 0000
0010 0000
0000 0000
0001 0000
Comment
Disables all writes except to the Write_Protect
Command
Disables all writes except to the Write_Protect
and Operation Commands
Disables all writes except to the Write_Protect,
Operation, ON_OFF_Config and
VOUT_COMMAND Commands
Enables writes to all commands
Disables all writes except to
WRITE_PROTECT, PAGE and all
MFR ? SPECIFIC Commands
0x19
R
0xB0
Capability
1
This command allows the host to get some information on the I 2 C
device.
Bit
7
6:5
4
3:0
Default
1
01
1
000
Comment
PEC (Packet Error Checking is supported)
Max supported bus speed is 400 kHz
NCP4208 has an SMBus ALERT pin and ARA
is supported
Reserved for future use
0x20
0x21
R
R/W
0x20
0x00
VOUT_MODE
VOUT_COMMAND
1
2
The NCP4208 supports VID mode for programming the output voltage.
Sets the output voltage using VID.
http://onsemi.com
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