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參數資料
| 型號： | XRP7714ILB-0X14-F |
| 廠商： | Exar Corporation |
| 文件頁數： | 23/29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
23/29
Rev. 1.1.6
GPIO2
GPIO2
XRP7714
Configured as a
master with
external clock sync
XRP7714
configured
as slave
SYNC_OUT
SYNC_IN
CLK_IN
CLK_IN
GPIO1
GPIO3
CLK_OUT
GPIO1
Fig. 30:Alternative External clock synchronization Master Slave combination
PHASE SHIFT
Each switching channel is configured to run with a phase shift of 90 degrees.
GPIO PINS
The General Purpose Input Output (GPIO) Pins are the basic interface between the XRP7714 and
the system. Although all of the stored data within the IC can be read back using the I2C bus it is
sometimes convenient to have some of those internal register to be displayed and or controlled by
a single data pin. Besides simple input output functions the GPIO pins can be configured to serve
as external clock inputs. These pins can be programmed using OTP bits or can be programmed
using the I
2
C bus. This GPIO_CONFIG register allows the user close to 100 different configuration
functions that the GPIO can be programmed to do.
NOTE: the GPIO Pins (and all I/Os) should NOT be driven without a 10K resistor when VIN is not
being applied to the IC.
GPIO Pins Polarity
The polarity of the GPIO pin can be set by using the GPIO_ACT_POL register. This register allows
any GPIO pin whether configured as an input or output to change polarity. Bits [5:0] are used to
set the polarity of GPIO 0 though 5. If the IC operates in I
2
C mode, then the commands for Bits
[5:4] are ignored.
Supply Rail Enable
Each GPIO can be configured to enable a specific power rail for the system. The GPIOx_CFG
register allows a GPIO to enable/disable any of the following rails controlled by the chip:
" A single buck power controller
" The Standby LDO
" Any mix of the Standby LDO and power controller(s)
When the configured GPIO is asserted externally, the corresponding rails will be enabled, and they
will be similarly disabled when the GPIO is de-asserted. This supply enabling/disabling can also be
controlled through the I
2
C interface.
Power Good Indicator
The GPIO pins can be configured as Power Good indicators for one or more rails. The GPIO pin is
asserted when all rails configured for this specific IO are within specified limits for regulation. This
information can also be found in the READ_PWRGD_SS_FLAG status register.
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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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