参数资料
| 型号： | ADP1046ACPZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 25/92页 |
| 文件大小： | 0K |
| 描述： | IC DGTL CTRLR 32LFCSP |
| 标准包装： | 5,000 |
| 应用： | 电源 |
| 输入电压： | 0 V ~ 1.6 V |
| 电源电压： | 3 V ~ 3.6 V |
| 电流 - 电源： | 20mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 32-LFCSP-WQ（5x5） |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页当前第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页
Data Sheet
CURRENT SHARING (SHARE)
The ADP1046 supports both analog current sharing and
digital current sharing. The ADP1046 uses the CS2 current
information for current sharing (this setting is programmed
in Register 0x29[4]).
Analog Current Sharing
Analog current sharing uses the internal current sensing
circuitry to provide a current reading to an external current
error amplifier. Therefore, an additional differential current
ADP1046
During the next cycle, the slave increases its current output contri-
bution by increasing its output voltage. This cycle continues
until the slave outputs the same current as the master, within
a programmable tolerance range. Figure 31 shows the configu-
ration of the digital share bus.
V DD
SHAREi
amplifier is not necessary.
The current reading from CS2 can be output to the SHAREo
pin in the form of a digital bit stream, which is the output of the
current sense ADC (see Figure 32). The bit stream from the
sigma-delta ADC is proportional to the current delivered by
this unit to the load. By filtering this digital bit stream using an
CURRENT SENSE
INFO
POWER SUPPLY A
DIGITAL
WORD
SHAREo
SHAREi
SHARE
BUS
external RC filter, the current information is turned into an
analog voltage that is proportional to the current delivered by
this unit to the load. This voltage can be compared to the share
bus voltage. If the unit is not supplying enough current, an error
CURRENT SENSE
INFO
DIGITAL
WORD
SHAREo
signal can be applied to the VS3± feedback point. This signal
causes the unit to increase its output voltage and, in turn, its
current contribution to the load.
Digital Share Bus
The digital share bus scheme is similar in principle to the tradi-
tional analog share bus scheme. The difference is that instead of
using a voltage on the share bus to represent current, a digital
word is used.
The ADP1046 outputs a digital word onto the share bus. The
digital word is a function of the current that the power supply is
providing (the higher the current, the larger the digital word).
The power supply with the highest current controls the bus
(master). A power supply that is putting out less current (slave)
sees that another supply is providing more power to the load
than it is.
CURRENT
POWER SUPPLY B
Figure 31. Digital Current Share Configuration
The digital share bus is based on a single-wire communication
bus principle; that is, the clock and data signals are contained
together.
When two or more ADP1046 devices are connected, they syn-
chronize their share bus timing. This synchronization is performed
by the start bit at the beginning of a communications frame. If a
new ADP1046 is hot-swapped onto an existing digital share bus,
the device waits to begin sharing until the next frame. The new
ADP1046 monitors the share bus until it sees a stop bit, which
designates the end of a share frame. It then performs synchroni-
zation with the other ADP1046 devices during the next start bit.
CS2+
CS2–
VOLTAGE
CURRENT
SENSE
ADC
BIT STREAM
SHARE
BUS
SHAREo
BIT STREAM
LPF
Figure 32. Analog Current Share Configuration
2 STOP BITS
(IDLE)
PREVIOUS
FRAME
START BIT
0
8-BIT DATA
FRAME
2 STOP BITS
(IDLE)
START BIT
0
NEXT FRAME
Figure 33. Digital Current Share Frame Timing Diagram
Rev. B | Page 25 of 92
相关PDF资料 |
PDF描述 |
|---|---|
| ADP1111ANZ-12 | IC REG BUCK BST INV 12V .2A 8DIP |
| ADP121-ACBZ12R7 | IC REG LDO 1.2V .15A 4WLCSP |
| ADP122AUJZ-2.9-R7 | IC REG LDO 2.9V .3A 5TSOT |
| ADP124ARHZ-2.85-R7 | IC REG LDO 2.85V .5A 8MSOP |
| ADP130AUJZ-2.5-R7 | IC REG LDO 2.5V .35A TSOT-23-5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP1046ADC1-EVALZ | 功能描述:电源管理IC开发工具 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| ADP1046AWACPZ-R7 | 功能描述:Power Supply Controller Power Supplies 32-LFCSP-WQ (5x5) 制造商:analog devices inc. 系列:- 包装:剪切带（CT） 零件状态:有效 应用:电源 电压 - 输入:0 V ~ 1.6 V 电压 - 电源:3 V ~ 3.6 V 电流 - 电源:20mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:32-WFQFN 裸露焊盘，CSP 供应商器件封装:32-LFCSP-WQ（5x5） 标准包装:1 |
| ADP1046DC1-EVALZ | 功能描述:BOARD EVAL DAUGHTERCARD ADP1046 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| ADP1047 | 制造商:AD 制造商全称:Analog Devices 功能描述:Digital Power Factor Correction Controller |
| ADP1047-300-EVALZ | 制造商:Analog Devices 功能描述:ANAADP1047-300-EVALZ 300W EVALUATION BOA 制造商:Analog Devices 功能描述:EVAL DIGITAL PFC CONTROLLER 300W 制造商:Analog Devices 功能描述:ADP1047, PFC CNTLR, 300W, EVAL KIT |
发布紧急采购，3分钟左右您将得到回复。