- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373995 > ADM1041 (Analog Devices, Inc.) Secondary-Side Controller with Current Share and Housekeeping PDF資料下載
參數(shù)資料
| 型號： | ADM1041 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Secondary-Side Controller with Current Share and Housekeeping |
| 中文描述： | 二次側(cè)電流控制器共享和管家 |
| 文件頁數(shù)： | 40/64頁 |
| 文件大?。?/td> | 1063K |
| 代理商： | ADM1041 |
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頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁當前第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁
ADM1041
EXTENDED SMBus ADDRESSING
A potential problem exists when using more than three
ADM1041s in a single power supply. The first time the device is
powered up, Bit 1 of Configuration Register 1 (ADD1) is 0. This
means that only three device addresses are initially available
defined by ADD0; if there are more than three devices in a
system, two or more of them will have duplicate addresses. See
Figure 38.
Rev. A | Page 40 of 64
To overcome this problem, the ICT pin has additional function-
ality. Taking ICT below GND temporarily disables the SMBus
function of the device. Thus, if the ICT pin of all devices in
which ADD1 is to remain 0 are taken negative, the ADD1 bits of
all other devices can be set to 1 via the SMBus. Each device then
has a unique address. Internal diodes clamp the negative voltage
to about 0.6 V, and care should be taken to limit the current to
less than approximately 5 mA on each ICT input to prevent the
possibility of damage or latch-up. The suggested current is
3 mA. One example of a suitable circuit is given in Figure 38. The
ADM1041s can then be configured and trimmed. If required,
AC_OKLink and PS
ON
LINK must be configured last. If ICT is
used for its intended purpose as a current transformer input,
care must be taken with the circuit design to allow the extended
SMBus addressing to work.
BACKDOOR ACCESS
After SCL and SDA have been configured as AC_OKLink and
PS
ON
LINK, it may be desired to recover the SMBus access to the
ADM1041. Changes may be necessary to the internal configura-
tion or trim bits. This is achieved by holding the SCL and SDA
pins at 0 V (ground) while cycling V
DD
. SCL and SDA then
revert to SMBus operation. See Figure 38.
ADD1 = 1
ADD1 = 0
2.4mA
8
13
14
15
8
13
14
15
8
13
14
15
8
13
14
15
8
13
14
15
8
13
14
15
V
DD
–12V
EXTENDED
SMBus
ADDRESSING
BACKDOOR
DEVICE 0
DEVICE 1
DEVICE 2
DEVICE 3
DEVICE 4
DEVICE 5
V
DD
N/C
4k
4k
4k
N/C
PS
ON
Link
AC_OKLink
V
DD
ICT
SCL
SDA
ADD0
ICT
SCL
SDA
ADD0
ICT
SCL
SDA
ADD0
ICT
SCL
SDA
ADD0
ICT
SCL
SDA
ADD0
ICT
SCL
SDA
ADD0
0
Figure 38. Extended SMBus Addressing and Backdoor Access
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADM1041ARQ | Secondary-Side Controller with Current Share and Housekeeping |
| ADM1041A | Secondary-Side Controller with Current Share and Housekeeping |
| ADM1041AARQZ | Secondary-Side Controller with Current Share and Housekeeping |
| ADM1041AARQZ-REEL | Secondary-Side Controller with Current Share and Housekeeping |
| ADM1041AARQZ-REEL7 | Secondary-Side Controller with Current Share and Housekeeping |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADM1041A | 制造商:AD 制造商全稱:Analog Devices 功能描述:Secondary-Side Controller with Current Share and Housekeeping |
| ADM1041AARQZ | 功能描述:IC SECONDARY SIDE CTRLR 24QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 應(yīng)用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°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-EP（5x5） 包裝:帶卷 (TR) |
| ADM1041AARQZ-REEL | 功能描述:IC SECONDARY SIDE CTRLR 24QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 應(yīng)用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°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-EP（5x5） 包裝:帶卷 (TR) |
| ADM1041AARQZ-REEL7 | 功能描述:IC SECONDARY SIDE CTRLR 24QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 應(yīng)用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°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-EP（5x5） 包裝:帶卷 (TR) |
| ADM1041A-EVALZ | 功能描述:BOARD EVAL FOR ADM1041A 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:- 標準包裝:1 系列:- 主要目的:DC/DC，步降 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:3.3V 電流 - 輸出:3A 輸入電壓:4.5 V ~ 28 V 穩(wěn)壓器拓撲結(jié)構(gòu):降壓 頻率 - 開關(guān):250kHz 板類型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名稱:497-12113STEVAL-ISA094V1-ND |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。