欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數資料
型號: ADP2140ACPZ3328R7
廠商: Analog Devices Inc
文件頁數: 28/32頁
文件大小: 2731K
描述: IC REG DL BCK/LINEAR 10LFCSP
標準包裝: 1
拓撲: 降壓(降壓)同步(1),線性(LDO)(1)
功能: 任何功能
輸出數: 2
頻率 - 開關: 3MHz
電壓/電流 - 輸出 1: 3.3V,600mA
電壓/電流 - 輸出 2: 2.8V,300mA
帶 LED 驅動器:
帶監控器:
帶序列發生器:
電源電壓: 1.65 V ~ 5.5 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 10-WFDFN 裸露焊盤,CSP
供應商設備封裝: 10-LFCSP-WD(3x3)
包裝: 標準包裝
其它名稱: ADP2140ACPZ3328R7DKR
ADP2140
Data Sheet
 
Rev. A | Page 28 of 32
THERMAL CONSIDERATIONS
In most applications, the ADP2140 does not dissipate much
heat due to its high efficiency. However, in applications with
high ambient temperature and high supply voltage-to-output
voltage differential, the heat dissipated in the package is large
enough that it can cause the junction temperature of the die to
exceed the maximum junction temperature of 125癈.
When the junction temperature exceeds 150癈, the converter
enters thermal shutdown. It recovers only after the junction
temperature has decreased below 130癈 to prevent any permanent
damage. Therefore, thermal analysis for the chosen application
is very important to guarantee reliable performance over all
conditions. The junction temperature of the die is the sum of
the ambient temperature of the environment and the tempera-
ture rise of the package due to the power dissipation, as shown
in Equation 2.
To guarantee reliable operation, the junction temperature of the
ADP2140 must not exceed 125癈. To ensure the junction temper-
ature stays below this maximum value, the user needs to be aware
of the parameters that contribute to junction temperature changes.
These parameters include ambient temperature, power dissipa-
tion in the power device, and thermal resistances between the
junction and ambient air (?/DIV>
JA
). The ?/DIV>
JA
 number is dependent on
the package assembly compounds that are used and the amount of
copper used to solder the package GND pins to the PCB. Table 10
shows typical ?/DIV>
JA
 values of the 10-lead, 3 mm ?3 mm LFCSP for
various PCB copper sizes.
Table 10. Typical ?/DIV>
JA
 Values
Copper Size (mm
2
) 
?nbsp  (癈/W)
0
1
 
42.5
50
40.0
100
38.8
300
37.2
500
36.2
1
 The device is soldered to minimum size pin traces.
 
The junction temperature of the ADP2140 can be calculated
from the following equation:
T
J
 = T
A
 + (P
D
 ??/DIV>
JA
)
(2)
where:
T
A
 is the ambient temperature.
P
D
 is the total power dissipation in the die, given by
P
D
 = P
LDO
 + P
BUCK
 
where:
P
LDO
 = [(V
IN
  V
OUT
) ?I
LOAD
] + (V
IN
 ?I
AGND
)
(3)
P
BUCK
 = P
SW
 + P
TRAN
 + P
SW_COND
 
(4)
where:
I
LOAD
 is the LDO load current.
I
AGND
 is the analog ground current.
V
IN
 and V
OUT
 are the LDO input and output voltages,
respectively.
P
SW
, P
TRAN
, and P
SW_COND
 are defined in the Efficiency section.
For a given ambient temperature and total power dissipation,
there exists a minimum copper size requirement for the PCB to
ensure the junction temperature does not rise above 125癈. The
following figures show junction temperature calculations for
different ambient temperatures, total power dissipation, and
areas of PCB copper.
145
135
125
115
105
95
85
75
65
55
45
35
25
0    0.25  0.50  0.75  1.00  1.25  1.50  1.75  2.00  2.25  2.50  2.75  3.00
TOTAL POWER DISSIPATION W
500mm
2
50mm
2
0mm
2
T
J MAX
 
Figure 91. Junction Temperature vs. Power Dissipation, T
A
 = 25癈
140
130
120
110
100
90
80
70
60
50
0
0.25   0.50   0.75   1.00   1.25   1.50   1.75   2.00   2.25   2.50
TOTAL POWER DISSIPATION W
500mm
2
50mm
2
0mm
2
T
J MAX
 
Figure 92. Junction Temperature vs. Power Dissipation, T
A
 = 50癈
相關PDF資料
PDF描述
ADP5022ACBZ-6-R7 IC REG TRPL BCK/LINEAR 16WLCSP
ADP5041ACPZ-1-R7 IC REG TRPL BCK/LINEAR 20-LFCSP
ADP5042ACPZ-2-R7 IC REG TRPL BCK/LINEAR 20LFCSP
ADT6402SRJZ-RL7 IC TEMP SENS TRIP PT PP SOT-23-6
ADT6501SRJZP085RL7 IC TEMP SENSOR MICROPWR SOT23-5
相關代理商/技術參數
參數描述
ADP2140CPZ-REDYKIT 功能描述:REDYKIT 2 BOARDS ADP2140ACPZ RoHS:是 類別:編程器,開發系統 >> 評估板 - 線性穩壓器 (LDO) 系列:* 產品變化通告:1Q2012 Discontinuation 30/Mar/2012 設計資源:NCP590MNDPTAGEVB Gerber Files 標準包裝:1 系列:- 每 IC 通道數:2 - 雙 輸出電壓:1.8V,2.8V 電流 - 輸出:300mA 輸入電壓:2.1 ~ 5.5 V 穩壓器類型:正,固定式 工作溫度:-40°C ~ 85°C 板類型:完全填充 已供物品:板 已用 IC / 零件:NCP590MNDP 其它名稱:NCP590MNDPTAGEVB-NDNCP590MNDPTAGEVBOS
ADP2147 制造商:AD 制造商全稱:Analog Devices 功能描述:Compact, 800 mA, 3 MHz, Simple DVS, Buck Regulator Input voltage: 2.3 V to 5.5 V
ADP2147ACBZ-110-R7 功能描述:IC REG BUCK SYNC 0.8A 6WLCSP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 產品培訓模塊:High Efficiency Current Mode Switching Regulators CMOS LDO Regulators 特色產品:BD91x Series Step-Down Regulators 標準包裝:2,500 系列:- 類型:降壓(降壓) 輸出類型:兩者兼有 輸出數:2 輸出電壓:3.3V,0.8 V ~ 2.5 V 輸入電壓:4.5 V ~ 5.5 V PWM 型:電流模式 頻率 - 開關:1MHz 電流 - 輸出:1.5A 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 包裝:帶卷 (TR) 供應商設備封裝:VQFN020V4040 產品目錄頁面:1373 (CN2011-ZH PDF) 其它名稱:BD9152MUV-E2TR
ADP2147ACBZ-130-R7 功能描述:IC REG BUCK SYNC 0.8A 6WLCSP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:500 系列:- 類型:切換式電容器(充電泵),反相 輸出類型:固定 輸出數:1 輸出電壓:-3V 輸入電壓:2.3 V ~ 5.5 V PWM 型:Burst Mode? 頻率 - 開關:900kHz 電流 - 輸出:100mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細型,TSOT-23-6 包裝:帶卷 (TR) 供應商設備封裝:TSOT-23-6 其它名稱:LTC1983ES6-3#TRMTR
ADP2147ACBZ-150-R7 功能描述:IC REG BUCK SYNC 1.2V/1V 6WLCSP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:500 系列:- 類型:切換式電容器(充電泵),反相 輸出類型:固定 輸出數:1 輸出電壓:-3V 輸入電壓:2.3 V ~ 5.5 V PWM 型:Burst Mode? 頻率 - 開關:900kHz 電流 - 輸出:100mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細型,TSOT-23-6 包裝:帶卷 (TR) 供應商設備封裝:TSOT-23-6 其它名稱:LTC1983ES6-3#TRMTR
主站蜘蛛池模板: 石柱| 独山县| 如皋市| 怀宁县| 曲靖市| 阳江市| 通江县| 河北区| 阳城县| 泰安市| 金阳县| 梓潼县| 兴义市| 苍溪县| 翁牛特旗| 高碑店市| 德令哈市| 栖霞市| 永丰县| 乳山市| 太白县| 北川| 博湖县| 贵定县| 达拉特旗| 阳朔县| 彩票| 上栗县| 桃江县| 晋城| 开江县| 台湾省| 长岛县| 布拖县| 札达县| 双桥区| 靖远县| 海晏县| 平果县| 南和县| 乐平市|