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參數資料
| 型號： | XRP7714ILB-0X14-F |
| 廠商： | Exar Corporation |
| 文件頁數： | 24/29頁 |
| 文件大小： | 1009K |
| 描述： | IC REG 5OUT BCK/LINEAR 40TQFN |
| 標準包裝： | 490 |
| 系列： | PowerXR |
| 拓撲： | 降壓（降壓）同步（4），線性（LDO）（1） |
| 功能： | 任何功能 |
| 輸出數： | 5 |
| 頻率 - 開關： | 1.5MHz |
| 電壓/電流 - 輸出 1： | 控制器 |
| 電壓/電流 - 輸出 2： | 控制器 |
| 電壓/電流 - 輸出 3： | 控制器 |
| 帶 LED 驅動器： | 無 |
| 帶監控器： | 無 |
| 帶序列發生器： | 是 |
| 電源電壓： | 4.75 V ~ 25 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 40-WFQFN 裸露焊盤 |
| 供應商設備封裝： | 40-TQFN（6x6） |
| 包裝： | 托盤 |
| 其它名稱： | 1016-1700 |
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?2011 Exar Corporation
24/29
Rev. 1.1.6
Fault and Warning Indication
The GPIOs can be configured to signal Fault or Warning conditions when they occur in the chip.
Each GPIO can be configured to signal one of the following:
" OCP Fault on Channel 1 - 4
" OCP Warning on Channel 1 - 4
" OVP Fault on Channel 1 - 4
" UVLO Fault on VIN1 or VIN2
" UVLO Warning on VIN1 or VIN2
" Over Temperature Fault or Warning
I
2
C COMMUNICATION
The I
2
C communication is standard 2-wire communication available between the Host and the IC.
The communication has the option of enabling Packet Error Checking in order to deal with noisy
environments where bit-errors could occur in the communication. This packet error checking is a
CRC-8 code appended to all communication between the Host and the IC.
Each XRP7714 in an I
2
C -bus system is activated by sending a valid address to the device. The
address always has to be sent as the first byte after the start condition in the I
2
C -bus protocol
MSB
6
5
4
3
2
1
0
R/W
LSB
Fig. 30: Alignment of I2C address in 8 bit byte
There is one address byte required since 7-bit addresses are used. The last bit of the address byte
is the read/write-bit and should always be set according to the required operation. This 7-bit I
2
C
address is stored in the NVM. One can program a blank device with the 7-bit Slave address or
select one of the preprogrammed options. The 7-bit address plus the R/W bit create an 8-bit data
value that is sent on the bus.
The XRP7714ILB-0X10-F has an I
2
C address of 0x10. The internal registers are written by sending
a data value of 0x20 and read by sending a data value of 0x21. This reflects the address being
shifted one bit to the left and the least significant bit being set to reflect a read or write operation
in order to stuff the byte correctly.
The second byte sent to the XRP7714 is the location of a specific register.
Using GPIO3 to select I
2
C Address
GPIO3 may be used to change the LSB of the 7-bit address. This option can be enabled within the
PowerArchitect
TM
software by checking the Use GPIO3 to control LSB of I2C address box at the
top right of the Digital Design tab. More about the use of this option and other methods of
changing the default I2C address of the part are available in ANP-31 Power
XR
Configuration and
Programming .
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相關代理商/技術參數 |
參數描述 |
|---|---|
| XRP7714ILB-0X18-F | 功能描述:電壓模式 PWM 控制器 4CH DIGITAL PWM CTRL I2C INTERFACE RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| XRP7714ILB-0X1C-F | 功能描述:電壓模式 PWM 控制器 4CH DIGITAL PWM CTRL I2C INTERFACE RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| XRP7714ILB-F | 功能描述:軟開關 PWM 控制器 4Ch Digital Pwr Cntr w/LDO prog. thru PC RoHS:否 制造商:Fairchild Semiconductor 輸出端數量: 輸出電流: 開關頻率: 工作電源電壓:30 V 電源電流: 最大工作溫度:+ 105 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| XRP7714ILBTR-0X10-F | 制造商:EXAR 制造商全稱:EXAR 功能描述:Quad Channel Digital PWM Step Down Controller |
| XRP7714ILBTR-0X14-F | 制造商:EXAR 制造商全稱:EXAR 功能描述:Quad Channel Digital PWM Step Down Controller |
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