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： 二次側電流控制器共享和管家
文件頁數(shù)： 19/64頁
文件大?。?/td> 1063K
代理商： ADM1041
ADM1041
THEORY OF OPERATION
POWER MANAGEMENT
This block contains V
DD
undervoltage lockout circuitry and a
power-on/reset function. It also provides precision references
for internal use and a buffered reference voltage, V
REF
. If V
REF
is
configured to an output pin, overloading, shorting to ground, or
shorting to V
DD
do not effect the internal references. See Figure 8.
Rev. A | Page 19 of 64
During power-on, V
REF
does not come up until V
DD
exceeds the
upper UVL threshold. Housekeeping functions in this block
include reference voltage monitors, V
DD
overvoltage, and a
ground fault detector.
The ground fault detector monitors ADM1041 ground with
respect to the remote sense pin V
S
. If GND becomes positive
with respect to V
S
an on-chip signal, V
DD
OK, goes false. V
DD
OK
is true only when all the following conditions are met: ground is
negative with respect to V
S
, INTREF and EXTREF are operating
normally, V
DD
> UVLHI, and V
DD
< V
DD
OVP threshold.
GAIN TRIMMING AND CONFIGURATION
The various gain settings and configurations throughout the
ADM1041 are digitally set up via the SMBus after it has been
loaded onto its printed circuit board. There is no need for
external trim potentiometers. An initial adjustment process
should be carried out in a test system. Other adjustments such
as current sense and voltage calibration should be carried out in
the completed power supply.
POR
RESET
V
DD
OK
V
DD
OV
1.25V
2.5V
UVLLO
UVLHI
OVP
GNDOK
GROUND
MONITOR
10
μ
s–20
μ
s
6.0V–6.5V
4.4V
4.0V
2.0V
V
REF
V
DD
V
S
–
GND
0.2V
AUXILIARY
REFERENCE
EXTREFOK
REFERENCE
MONITOR
INTREFOK
INTERNAL
REFERENCE
gndok_dis
MAIN
BAND GAP
7
20
1
18
S
Q
R
Q
S
R
Q
0
Figure 8. Block Diagram of Power Management Section
相關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
相關代理商/技術參數(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)
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)
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(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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