- 您现在的位置：买卖IC网 > PDF目录1774 > ADM1041AARQZ-REEL7 (Analog Devices Inc)IC SECONDARY SIDE CTRLR 24QSOP PDF资料下载
参数资料
| 型号： | ADM1041AARQZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 40/64页 |
| 文件大小： | 0K |
| 描述： | IC SECONDARY SIDE CTRLR 24QSOP |
| 产品变化通告： | Product Discontinuance 27/Oct/2011 |
| 标准包装： | 1,000 |
| 应用： | 次级侧控制器 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电流 - 电源： | 6mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 24-QSOP |
| 包装： | 带卷 (TR) |
| 配用： | ADM1041-EVAL-ND - BOARD EVALUATION ADM1041 |
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页当前第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
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
V DD
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
ICT 8
SCL 13
AC_OKLink
PS ON Link
system, two or more of them will have duplicate addresses. See
N/C 15 ADD0
SDA 14
DEVICE 5
To overcome this problem, the ICT pin has additional function-
ality. Taking ICT below GND temporarily disables the SMBus
ICT 8
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
ADD1 = 1
V DD
SCL 13
SDA 14
15 ADD0
DEVICE 4
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
ICT 8
SCL 13
3 mA. One example of a suitable circuit is given in Figure 38. The
ADM1041s can then be configured and trimmed. If required,
15 ADD0
SDA 14
AC_OKLink and PS ON LINK must be configured last. If ICT is
DEVICE 3
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.
ICT 8
SCL 13
4k ?
BACKDOOR ACCESS
N/C 15 ADD0
SDA 14
2.4mA
After SCL and SDA have been configured as AC_OKLink and
DEVICE 2
PS ON LINK, it may be desired to recover the SMBus access to the
ADM1041. Changes may be necessary to the internal configura-
ICT 8
4k ?
EXTENDED
SMBus
ADDRESSING
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
ADD1 = 0
V DD
15 ADD0
SCL 13
SDA 14
–12V
DEVICE 1
4k ?
ICT 8
SCL 13
15 ADD0
SDA 14
DEVICE 0
BACKDOOR
Figure 38. Extended SMBus Addressing and Backdoor Access
Rev. A | Page 40 of 64
相关PDF资料 |
PDF描述 |
|---|---|
| ADM1041AARQZ | IC SECONDARY SIDE CTRLR 24QSOP |
| ADM1060ARU | IC SUPERVIS/SEQUENC 7-CH 28TSSOP |
| ADM1062ACPZ-REEL7 | IC SEQUENCER/SUPERVISOR 40LFCSP |
| ADM1063ASUZ | IC SUPERVISOR/SEQUENCER 48-TQFP |
| ADM1064ACPZ | IC SEQUENCER/SUPERVISOR 40-LFCSP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM1041A-EVALZ | 功能描述:BOARD EVAL FOR ADM1041A RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 标准包装:1 系列:- 主要目的:DC/DC，步降 输出及类型:1，非隔离 功率 - 输出:- 输出电压:3.3V 电流 - 输出:3A 输入电压:4.5 V ~ 28 V 稳压器拓扑结构:降压 频率 - 开关:250kHz 板类型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名称:497-12113STEVAL-ISA094V1-ND |
| ADM1041ARQ | 功能描述:IC PWR SUPP MON/LOAD SHAR 24QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
| ADM1041ARQ-2 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| ADM1041ARQ-REEL | 制造商:AD 制造商全称:Analog Devices 功能描述:Secondary-Side Controller with Current Share and Housekeeping |
| ADM1041ARQ-REEL7 | 功能描述:IC PWR SUP MON/LOAD SHARE 24QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。