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參數資料
型號: ADM1041AARQZ-REEL
廠商: ANALOG DEVICES INC
元件分類: 通信及網絡
英文描述: Secondary-Side Controller with Current Share and Housekeeping
中文描述: SPECIALTY TELECOM CIRCUIT, PDSO24
封裝: LEAD FREE, MO-137AE, QSOP-24
文件頁數: 23/56頁
文件大小: 991K
代理商: ADM1041AARQZ-REEL
ADM1041A
SHARE_OK DETECTOR
Incorrect current sharing is a useful early indicator that there is
some sort of noncatastrophic problem with one of the power
supplies in a parallel system. Two comparators are used to
detect an excessive positive or negative error voltage at the input
Rev. 0 | Page 23 of 56
of the I
SHARE
error amplifier, which indicates that the current
share loop has lost control. One of four possible error levels
must be configured via the SMBus. See Figure 15.
24
20
23
22
5
SHAREOK
50mV
50mV
TO VOLTAGE ERROR AMP
I
SHARE
ERROR
DIFFERENTIAL
SENSE
60
μ
A
I
SHARE
DRIVE
+12V
1N4148
I
CLAMP
GAIN = (R1+R2)/R2
SCMP
GAIN = (R1 + R2)/R2
SHARE BUS
REMOTE
–VE SENSE
R1
R2
SHRO
SHRS+
V
S
–/SHRS–
V
CMP
0
VOLTAGE
ERROR AMP
SOFT-
START
RAMP UP
V
REF
DIFF. VOLTAGE SENSE
CURRENT SHARE
CAPTURE
CURRENT LIMIT
1V
3V
70
μ
A
V
REF
V
REF
V
DD
SET CURRENT-
LIMIT LEVEL
CURRENT-
SHARE
OFFSET
(V
,
IOUT = 0)
CURRENT-
ERROR AMP
FROM
CURRENT
SENSE
R
9R
Figure 15. Current-Share Circuit and Soft Start
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參數描述
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,監視器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 應用: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 供應商設備封裝: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,開發系統 >> 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 穩壓器拓撲結構:降壓 頻率 - 開關: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
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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 制造商全稱:Analog Devices 功能描述:Secondary-Side Controller with Current Share and Housekeeping
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