As EDN’s Design Ideas editor, I see a range of design submissions, from good, to not so good. A recent DI I turned down for several reasons included a high-side current sense circuit with implementation problems. This got me thinking about the different ways to accomplish current sensing on a voltage rail. At their heart, …
Features Wide Input Voltage Range: 3.0V to 42V Ultralow Quiescent Current Burst Mode® Operation: <2.5μA IQ Regulating 12VIN to 3.3VOUT Output Ripple <10mVP-P High Efficiency 2MHz Synchronous Operation: >92% Efficiency at 0.5A, 5VOUT from 12VIN 1.5A Continuous Output Current Fast Minimum Switch-On Time: 45ns Adjustable and Synchronizable: 200kHz to 2.2MHz Spread Spectrum Frequency Modulation for …
LT8608 – 42V, 1.5A Synchronous Step-Down Regulator with 2.5μA Quiescent Current Read More »
Features Gain Bandwidth Product: 4GHz Low Input Bias Current: ±3fA Typ. Room Temperature 4pA Max at 125°C Current Noise (100kHz): 7fA/√Hz Voltage Noise (1MHz): 4.0nV/√Hz Extremely Low CIN 0.45pF Rail-to-Rail Output AV ≥10 Slew Rate: +1500V/μs, –1000V/μs Supply Range: 3.1V to 5.25V Quiescent Current: 16.5mA Operating Temp Range: –40°C to 125°C Single in 8-Lead SO-8, …
4-GHz op amps achieve ultralow input bias current Read More »
Features 4000:1 True Color PWM™ Dimming 4A, 60V Internal DMOS Switch Wide Input Voltage Range: 3V to 42V 0V to 60V Output Current Regulation with Monitor PMOS Switch Driver for PWM and Output Disconnect LED Short-Circuit Protection and SHORTLED Flag Internal Spread Spectrum Frequency Modulation Constant-Current and Constant-Voltage Regulation Input Current Limit and Monitor Adjustable …
Each of the output lines of a ‘508A microcontroller can deliver a maximum of 25mA. What does this mean? It means any device connected to the line must take 25mA or less. If it takes more than 25mA a buffer transistor (also called an amplifying transistor) must be used and this will be discussed in a …
A discussion on the drive-current for the outputs of a PIC12C508A microcontroller Read More »
Should you however be afraid of accidental fall off of the connector (it will certainly hold on if there are no vibrations, shocks or unpredictable tension to leads), then for your peace of mind we recommend you to use connectors that can be secured by a screw. Naturally, devices exposed to vibrations are much more …
UT204 from company UNI-Trend is a near relative to the UT203. multimeter. Already UT203 provides a lot of user comfort and a very pleasant feature – measuring of a DC current without interrupting a measured circuit. However UT204 is different from its “weaker” brother in one essential thing – it enable measuring of a true …
UT204 is able to measure DC current and also True RMS Read More »
