- 您現在的位置：買賣IC網 > PDF目錄373995 > ADM1041AARQZ-REEL7 (ANALOG DEVICES INC) Secondary-Side Controller with Current Share and Housekeeping PDF資料下載
參數資料
| 型號： | ADM1041AARQZ-REEL7 |
| 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： | 18/56頁 |
| 文件大小： | 991K |
| 代理商： | ADM1041AARQZ-REEL7 |
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頁當前第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
ADM1041A
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
. Over-
loading, shorting to ground, or shorting to VDD do not effect
the internal references. See Figure 8.
Rev. 0 | Page 18 of 56
During power-on, V
REF
does not come up until V
DD
exceeds the
upper UVL threshold. Housekeeping components in this block
include reference voltage monitors, a V
DD
overvoltage monitor,
and a ground fault detector.
The ground fault detector monitors ADM1041A 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 VS, 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
ADM1041A 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
300
μ
s
≥
500
μ
s
≥
700
μ
s
6.0V–6.5V
4.4V
4.0V
2.0V
V
DD
V
S
–
GND
0.2V
AUXILIARY
REFERENCE
EXTREFOK
REFERENCE
MONITOR
INTREFOK
INTERNAL
REFERENCE
gndok_dis
MAIN
BAND GAP
7
20
1
S
Q
R
Q
S
R
Q
0
Figure 8. Block Diagram of Power Management Section
相關PDF資料 |
PDF描述 |
|---|---|
| ADM1052 | Precision Dual Voltage Regulator Controller |
| ADM1052JR | Precision Dual Voltage Regulator Controller |
| ADM1060 | DIP Socket; No. of Contacts:56; Pitch Spacing:0.07"; Row Spacing:0.6"; Terminal Type:PC Board; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):No RoHS Compliant: Yes |
| ADM1060ARU | CON-HDR64POS2ROW 4WALL.1X.1SP,RTANG,LOPF |
| ADM1064 | Super Sequencer with Voltage Readback ADC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| ADM1041ARQ | 功能描述:IC PWR SUPP MON/LOAD SHAR 24QSOP RoHS:否 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) |
| 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 |
| ADM1041ARQ-REEL7 | 功能描述:IC PWR SUP MON/LOAD SHARE 24QSOP RoHS:否 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) |
發布緊急采購，3分鐘左右您將得到回復。