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參數(shù)資料
| 型號： | XRP7740ILB-0X18-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 23/28頁 |
| 文件大?。?/td> | 1610K |
| 描述： | IC REG 5OUT BCK/LINEAR 40TQFN |
| 標準包裝： | 98 |
| 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(shù)： | 5 |
| 頻率 - 開關(guān)： | 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(qū)動器： | 無 |
| 帶監(jiān)控器： | 無 |
| 帶序列發(fā)生器： | 是 |
| 電源電壓： | 6.5 V ~ 20 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(yīng)商設(shè)備封裝： | 40-TQFN（6x6） |
| 包裝： | 托盤 |
| 其它名稱： | 1016-1697 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁當前第23頁第24頁第25頁第26頁第27頁第28頁
X
X
R
R
P
P
7
7
7
7
0
0
8
8
a
a
n
n
d
d
X
X
R
R
P
P
7
7
7
7
4
4
0
0
Q
Q
u
u
a
a
d
d
C
C
h
h
a
a
n
n
n
n
e
e
l
l
D
D
i
i
g
g
i
i
t
t
a
a
l
l
P
P
W
W
M
M
S
S
t
t
e
e
p
p
D
D
o
o
w
w
n
n
C
C
o
o
n
n
t
t
r
r
o
o
l
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?2012 Exar Corporation
23/28
Rev. 1.2.2
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.
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.
This interface allows for the full control, monitoring, and reconfiguration of the semiconductor.
Each device 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. 29: 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.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRP7740ILB-AAAA-F | 制造商:EXAR 制造商全稱:EXAR 功能描述:Quad-Output Digital PWM Buck Controller Supporting high current loads |
| XRP7740ILB-F | 功能描述:軟開關(guān) PWM 控制器 4Ch Digital Pwr Cntr w/LDO prog. thru I2C RoHS:否 制造商:Fairchild Semiconductor 輸出端數(shù)量: 輸出電流: 開關(guān)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| XRP7740ILBTR-AAAA-F | 制造商:EXAR 制造商全稱:EXAR 功能描述:Quad-Output Digital PWM Buck Controller Supporting high current loads |
| XRP7740ILBTR-F | 功能描述:軟開關(guān) PWM 控制器 4Ch Digital Pwr Cntr w/LDO prog. thru I2C RoHS:否 制造商:Fairchild Semiconductor 輸出端數(shù)量: 輸出電流: 開關(guān)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| XRP77XXEVB-XCM | 功能描述:EVAL BOARD W/USB-I2C FOR XRP7704 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - DC/DC 與 AC/DC（離線）SMPS 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標準包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓撲結(jié)構(gòu):升壓 頻率 - 開關(guān):3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
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