Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions are conditions under which the device functions
but the specifications might not be guaranteed. For guaranteed specifications and test conditions see the Electrical Characteristics.
Note 2:
The maximum allowable power dissipation at any ambient temperature is a function of the maximum junction temperature for operation (T
JMAX
= 125˚C
or 150˚C), the junction-to-ambient thermal resistance (θ
JA
), and the ambient temperature (T
A
). P
DMAX
= (T
JMAX
− T
A
)/θ
JA
. If this dissipation is exceeded, the die
temperature will rise above T
JMAX
and the electrical specifications do not apply. If the die temperature rises above 150˚C, the device will go into thermal shutdown.
For the TO-3 package (K, KC), the junction-to-ambient thermal resistance (θ
JA
) is 39˚C/W. When using a heatsink,
θ
JA
is the sum of the 4˚C/W junction-to-case
thermal resistance (θ
JC
) of the TO-3 package and the case-to-ambient thermal resistance of the heatsink. For the TO-220 package (T),
θ
JA
is 54˚C/W and
θ
JC
is
4˚C/W. If SOT-223 is used, the junction-to-ambient thermal resistance is 174˚C/W and can be reduced by a heatsink (see Applications Hints on heatsinking).
If the TO-263 package is used, the thermal resistance can be reduced by increasing the PC board copper area thermally connected to the package: Using 0.5 square
inches of copper area,
θ
JA
is 50˚C/W; with 1 square inch of copper area,
θ
JA
is 37˚C/W; and with 1.6 or more inches of copper area,
θ
JA
is 32˚C/W.
Note 3:
ESD rating is based on the human body model, 100 pF discharged through 1.5 kΩ.
Note 4:
All characteristics are measured with a 0.22 µF capacitor from input to ground and a 0.1 µF capacitor from output to ground. All characteristics except noise
voltage and ripple rejection ratio are measured using pulse techniques (t
w
≤
10 ms, duty cycle
≤
5%). Output voltage changes due to changes in internal temperature
must be taken into account separately.
Note 5:
A military RETS specification is available on request. At the time of printing, the military RETS specifications for the LM140AK-5.0/883, LM140AK-12/883,
and LM140AK-15/883 complied with the min and max limits for the respective versions of the LM140A. At the time of printing, the military RETS specifications for
the LM140K-5.0/883, LM140K-12/883, and LM140K-15/883 complied with the min and max limits for the respective versions of the LM140. The LM140H/883,
LM140K/883, and LM140AK/883 may also be procured as a Standard Military Drawing.
Dear heroes:I am now involved in the design of BOARDCOM chips with a group of people. If you want relevant design information, please ask for it in cash! My QQ is 259525623, contact...
This time the charging chip uses ME4069. The chip manual will be placed at the back. The circuit uses the official one. The official reference circuit is as shown below. R5 selects a 50 milliohm resis...
[i=s]This post was last edited by ienglgge on 2014-4-3 08:15[/i] Win7 system. There is already a keil4 in the computer. This is another keil4. I haven't used the desktop for a while, and suddenly foun...
MAX32630FTHR itself has a Bluetooth module, but the module lacks a driver and is more troublesome to use. Therefore, the external WiFi module is connected through UART2 to realize the data communicati...
50 points. Looking for an example of WinCE Service (the simpler and easier to understand, the better. Don't use the example on MSDN). I looked at the example on MSDN, which uses IOCTRL to implement da...
A vacuum eutectic furnace is a critical piece of equipment used in the manufacturing and processing of various materials, particularly in the fields of microelectronics and nanotechnology. One of t...[Details]
introduction
Bluetooth technology is a short-range wireless communication technology designed to replace wired cables. It is a wireless communication technology standard developed by the SIG, ...[Details]
ISP devices, such as field programmable devices (FPGAs and CPLDs), do not require a programmer. Using programming kits provided by the device manufacturer, they employ a top-down modular design app...[Details]
Long ago, the lifespan of cars in my country was 15 years. Once a car reached 15 years old, it was forced to be scrapped. However, the policy was later changed. As long as the car does not exceed 6...[Details]
On August 18th, Galaxis, a specialist in integrated intelligent intralogistics robotics, officially unveiled its next-generation, ultra-narrow aisle forklift mobile robot, the "VFR Ultra-Narrow Ser...[Details]
On August 21st, Zhiyuan Robotics revealed at its first partner conference that it expects shipments to reach thousands of units this year and tens of thousands next year. The company hopes to reach...[Details]
According to foreign media reports, Nissan Motor has recently reached a cooperation with US battery technology company LiCAP Technologies to jointly promote the research and development of next-gen...[Details]
A half-bridge is an inverter topology for converting DC to AC. A typical half-bridge circuit consists of two controller switches, a three-wire DC power supply, two feedback diodes, and two capacito...[Details]
On August 22, the Wall Street Journal reported on the 21st local time that the new US government does not plan to acquire equity in semiconductor wafer foundry giant TSMC and Micron, one of the thr...[Details]
A patent disclosed by Ford proposes replacing traditional segmented side curtain airbags with integrated full-width side curtain airbags that span the side of the vehicle and can be deployed simult...[Details]
Over the past decade, the narrative surrounding fuel vehicles has been one of decline and replacement. Under the onslaught of new energy vehicles, traditional automakers have been forced to acceler...[Details]
With the increasing popularity of automated equipment, linear modules, a common auxiliary device for automated equipment, have also seen a bright future. In particular, in recent years, many small ...[Details]
Tools/Materials
Yitong Chuanglian MODBUS to PROFIBUS Gateway YT-PB-03
Siemens s7-300
This article describes how to configure the YT-PB-03 MODBUS to PROFIBUS gat...[Details]
The composition of the water heater
The water heater itself is divided into the following parts:
1. Water tank.
This is where the water heater is filled with water and where the wate...[Details]
For self-driving cars, LiDAR is the sensory organ that allows them to "see the road." Simply put, its operating principle involves sending out a laser beam, receiving the echo, and ultimately gener...[Details]
RF/Wirelessly
京公网安备 11010802033920号
EEWORLD
