- 您现在的位置：买卖IC网 > PDF目录22118 > ADM1075-1ACPZ-RL7 (Analog Devices Inc)IC HOT SWAP CTRLR -48V 28LFCSP PDF资料下载
参数资料
| 型号： | ADM1075-1ACPZ-RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 27/52页 |
| 文件大小： | 0K |
| 描述： | IC HOT SWAP CTRLR -48V 28LFCSP |
| 标准包装： | 1,500 |
| 类型： | 热交换控制器 |
| 应用： | -48V 远程电力系统，高可用性，电信/数据通信系统 |
| 内部开关： | 无 |
| 电流限制： | 可调 |
| 电源电压： | -35 V ~ -80 V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-WFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 28-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页第25页第26页当前第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
Data Sheet
ADM1075
The ADM1075 returns a single value corresponding to the
–48V SIDE
ISOLATED SIDE
average voltage and current measured. When configured for
(PRIMARY)
ADuM1250
(SECONDARY)
continuous mode, the power monitor continuously samples
voltage and current, making the most recent sample available
to be read. The ADC runs in continuous mode by default at
power-up.
VDD1
100nF
5V
–48V
10k?
SDA
10k?
SCL
VDD1
SCL2
SCL1
VDD2
SDA2
SCL2
SDA_ISO
SCL_ISO
5V_ISO
100nF
GND_ISO
The single-shot mode can be triggered in a number of ways.
The simplest is by selecting the single-shot mode using the
–48V
GND1
GND2
GND_ISO
PMON_CONFIG command and writing to the CONVERT bit
using the PMON_CONTROL command. The CONVERT bit
can also be written as part of a PMBus group command. Using a
group command allows multiple devices to be written to as part
of the same I 2 C bus transaction, with all devices executing the
command when the stop condition appears on the bus. In this
way, several devices can be triggered to sample at the same time.
When the GPO1/ALERT1/CONV pin is set to the convert
(CONV) mode, an external hardware signal can be used to
trigger the single-shot sampling of one or more parts at the
same time.
Each time a current sense and input voltage measurement is
taken, a power calculation is performed, multiplying the two
measurements together. This can be read from the device using
the READ_PIN command, returning the input power.
At the same time, the calculated power value is added to a
power accumulator register that may increment a rollover
counter if the value exceeds the maximum accumulator value,
and that also increments a power sample counter.
The power accumulator and power sample counter are read
back using the same READ_EIN command to ensure that the
accumulated value and sample count are from the same point in
time. The bus host reading the data assigns a timestamp to show
when the data is read. By calculating the time difference between
consecutive uses of READ_EIN and determining the delta in
power consumed, it is possible for the host to determine the
total energy consumed over that period.
ISOLATION
Isolation is usually required in ?48 V systems because there can
be a large voltage difference between different ground planes in
Figure 54. ADuM1250 I 2 C Isolation
The ADuM1250 and ADuM3200 must be powered from both the
primary and secondary sides. The ADuM5404 only needs to be
powered from the secondary side and can provide power across
the isolation barrier via the integrated dc-to-dc converter. There-
fore, the ADuM5404 can be used to power the primary side of
the ADuM1250 if both are used on the board. Some extra care
is required if using the ADuM5404 to power the ADuM3200 . If
the power at the secondary side is enabled by the ADM1075 , the
iso Power solution may not work. Because iso Power is unpowered
in this case, the ADuM3200 outputs are in an undefined state. If
the SHDN input comes from the ADuM3200 , it may be held
low, and the ADM1075 never turns on the FET or enables
power at the secondary side.
iso Power uses high frequency switching elements to transfer
power through its transformer. Special precautions must be
taken during printed circuit board (PCB) layout to meet
emissions standards. See the AN-0971 Application Note for
board layout recommendations.
Powering the i Couplers from the secondary side is usually
straightforward because there is often a suitable voltage rail
available. However, there is not always a suitable voltage rail
available on the primary side (?48 V side). If the ADuM5404 is
not used on the system, the ADuM1250 can be powered on the
primary side in a number of different ways.
If a voltage rail is available on the primary side (3.3 V or 5 V
referenced to VEE), that can be used to power the chip directly.
Otherwise, the ADM1075 shunt voltage and/or the ?48 V
supply can be regulated down to power the part. A simple
the system. The ADM1075 is referenced to ?48 V, whereas the
MCU is usually referenced to 0 V. In almost all cases, the I 2 C signals
must be isolated. Any other ADM1075 digital input and output
signals that go to or come from the MCU must also be isolated.
12V (SHUNT)
20k ?
–48V RTN
1k?
0.33W
Analog Devices, Inc., provide a range of digital isolators using
i Coupler? technology. i Coupler technology is based on chip
scale transformers rather than the LEDs and photodiodes used
20k
6V
5V AUX
in optocouplers. The ADuM1250 is a dual I 2 C isolator and can
be used in conjunction with the ADM1075 for I 2 C isolation.
–48V
1μF
In cases where more digital signals need to be isolated, the
ADuM3200 is a dual-channel digital isolator whereas the
ADuM5404 is a quad-channel isolator with iso Power?, an
integrated, isolated dc-to-dc converter.
Rev. C | Page 27 of 52
–48V
Figure 55. Powering i Coupler from ?48 V Supply
相关PDF资料 |
PDF描述 |
|---|---|
| 2-530689-6 | CONN EDGE CARD 22POS DUAL SOLDER |
| LC4064V-75T100C | IC PLD 64MC 64I/O 7.5NS 100TQFP |
| VE-23N-EV-F1 | CONVERTER MOD DC/DC 18.5V 150W |
| GMM06DTKI-S288 | CONN EDGECARD 12POS .156 EXTEND |
| TAP105K035DTS | CAP TANT 1UF 35V 10% RADIAL |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM1075-1ARUZ | 功能描述:IC CTRLR HOTSWAP -48V 28TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| ADM1075-1ARUZ-RL7 | 功能描述:IC HOTSWAP CTRLR -48V 28TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型，PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V，12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP（12x12） 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF) |
| ADM1075-2ACPZ | 功能描述:IC HOT SWAP CTRLR -48V 28LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型，PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V，12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP（12x12） 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF) |
| ADM1075-2ACPZ-RL7 | 功能描述:IC HOT SWAP CTRLR -48V 28LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型，PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V，12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP（12x12） 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF) |
| ADM1075-2ARUZ | 功能描述:IC CTRLR HOTSWAP -48V 28TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
发布紧急采购，3分钟左右您将得到回复。