The micro SMD package marking is a single digit manufacturing Date Code Only.
3
www.national.com
LM2931
Typical Applications
LM2931 Fixed Output
DS005254-4
*
Required if regulator is located far from power supply filter.
*
*C2 must be at least 100 µF to maintain stability. May be increased without bound to maintain regulation during transients. Locate as close as possible to the
regulator. This capacitor must be rated over the same operating temperature range as the regulator. The equivalent series resistance (ESR) of this capacitor is
critical; see curve.
LM2931 Adjustable Output
DS005254-5
Note:
Using 27k for R1 will automatically compensate for errors in V
OUT
due to the input bias current of the ADJ pin (approximately 1 µA).
I would like to ask an expert for help . When I simulate a project with an IP core, there is a vhd file with the IP core under the top-level file of this project, which can be called ip.vhd, and two f...
APM 1.0 & 1.1: BIOS performs power management; APM 1.2: The operating system defines the power management time, which is executed by the BIOS; ACPI: The BIOS collects hardware information and defines ...
Electrical testing refers to all tests performed using electrical technology and tests performed on electrical systems and equipment (motors, electrical appliances, etc.). Electrical testing usually i...
Matter is composed of molecules, which are composed of atoms. Atoms are composed of negatively charged electrons and positively charged protons. Under normal conditions, the number of protons in an at...
I used protues to simulate and found that when I used external interrupt 0 and turned on the overflow interrupt of timer 1 (ET1=1), the external interrupt would not be triggered and could only be set ...
While
the solid-state battery
industry is still engaged in a long technological marathon for
the "ultimate solution" for
electric vehicles
, some companies have begun looking for mor...[Details]
Flip-chip and ball grid array (BGA) are two widely used packaging technologies in the electronics industry. Each has its own advantages and limitations, and in some cases, they can complement each ...[Details]
According to foreign media reports, researchers at the University of Surrey have developed an artificial intelligence system that can accurately locate the location of equipment in densely populate...[Details]
According to foreign media reports, BMW has just been granted a patent for a screen that could cover the entire roof. BMW hopes to transform at least a portion of the vehicle's headliner into a dis...[Details]
introduction
According to the China Fire Statistics Yearbook, electrical fires accounted for more than 30% of fire accidents in the past decade, and the trend is increasing year by year. They ...[Details]
Laird Thermal Systems has introduced the HiTemp ET series Peltier cooler modules, which can operate at high temperatures and provide on-site cooling for sensitive electronic devices.
Dig...[Details]
HTTP is the abbreviation of Hypertext Transfer Protocol. It is an application protocol based on TCP/IP communication protocol used to transmit HTML and image files. It is an application-level objec...[Details]
Shanghai, China, August 21, 2025 –
Toshiba Electronic Devices & Storage Corporation (“Toshiba”) today announced the launch of the TLX9161T
, an automotive photorelay in a compact SO12L-T pa...[Details]
Smartphones can be incredibly unintelligent. For example, consider an office full of people, each absorbed in their work. Suddenly, the silence is broken by a burst of loud pop music. A colleague's...[Details]
introduction
A common voltage regulator is a three-terminal one. Its function is to step down the voltage and stabilize it at a fixed output value. Voltage regulators are commonly available in...[Details]
On August 20, Reuters reported that two sources revealed that U.S. Commerce Secretary Howard Lutnick is exploring the possibility of using CHIPS Act funds in exchange for equity stakes in chip manu...[Details]
As the core of electric vehicles, batteries are concerned with vehicle use and maintenance. The operation of vehicles is guaranteed by the electricity generated by batteries. For batteries, battery...[Details]
The automotive driveshaft is a crucial connecting component in the automotive mechanical system. It is a circular component that allows for connection or assembly, as well as movement and rotation....[Details]
According to foreign media reports, Apple is secretly evaluating several artificial intelligence hardware concepts, including smart home displays, security devices and a desktop robot, of which the...[Details]
Anyone who has driven a pure electric vehicle will find that it starts much faster than a fuel vehicle. So why do pure electric vehicles start so quickly?
We all know that an engine's to...[Details]
Embedded System
京公网安备 11010802033920号
EEWORLD
