Now in its sixth year of awards, EW BrightSparks sees Electronics Weekly highlight and celebrate some of the brightest and most talented young engineers in the UK today. Here, in our series on the latest EW BrightSparks of 2023, we profile Alex Jarvis, an Application Engineer at Diodes Incorporated. Achievements It was his manager at Diodes who nominated Alex, telling ...
Tag Archives: Diodes
Programmable dc-dc converter for active-matrix OLEDs
Diodes is aiming at active matrix OLED panels with three-output power management dc-dc converter. Running from 2.9 to 4.8V, AL3565 produces: 4.6 to 5.0V (VPOS) with 0.5% accuracy at up to 500mA from a buck-boost converter -1.4 to -5.4V (VNEG) with 0.5% accuracy at up to 500mA from an inverting buck-boost converter 5.8 to 7.9V (AVDD) with 0.5% accuracy at ...
Winner – Diodes LED Lighting Product of the Year
According to the judges, the AL5887 offers a number of benefits to customers and is a more sustainable choice than other LED drivers on the market. One judge in particular remarked on the ultra-low shutdown low power saving mode. Shortlist * Diodes – AL5887 dual digital interface, multi-channel LED driver for RGB and single colour, solid state lighting * Indie ...
Automotive SEPIC and boost LED driver
Diodes has is aiming at automotive LED strings with a boost and SEPIC (single-ended primary-inductance converter) controller, that can also be wired as a voltage regulator. Called AL8853AQ, it is qualified to AEC-Q100 and implements current-mode and fixed-frequency (400khz) PWM control. Slope-compensation is included to prevent sub-harmonic oscillation at duty cycles >50%. The IC requires an external n-channel power switching ...
Automotive Hall sensors detect speed and direction
Aiming at industrial and automotive applications, Diodes has introduced a portfolio of Hall-effect sensors for measuring linear and angular speed and direction. Called AH39xxQ, “they also have a 40V absolute maximum rating, enabling them to safely handle 40V load dumps”, according to the company. “Additionally, -18V of reverse voltage protection guards against incorrect battery connections. For added robustness, the ESD ...
3A LDO regulates to ±1% across line, load and temperature
Diodes has released a 3A low-dropout low-noise voltage regulator. Called AP7179D, it has ±1% output accuracy (Vin = Vout + 300mV) across line, load and temperature, according to the company, and it drops 180mV (maximum) with 3A of load. Its low-noise reference and error amplifier contribute to 4.4µVrms typical operation at 800mV output (7μVrms at 5V), and PSSR (power supply ...
Precision micro-power op-amp for automotive
Diodes has announced a single-channel version of its automotive-qualified AS2333Q dual precision micro-power op-amp. AS333Q has an 8μV input offset (22μV max 25°C), consumes 17μA, and has “near zero-drift over time and temperature for high-accuracy signal conditioning in automotive electronic control units”, according to the company. It has rail-to-rail inputs and output, with the common-mode range extending 100mV beyond the ...
DPDT analogue switch works above 5GHz and goes hi-z when powered off
Diodes has created a high-speed double-pole double-throw analogue switch that can be used as a multiplexer or de-multiplexer at over 5GHz. To be known as PSMUX136, it supports a supply of 1.8 to 5.5V, and from 0 to 3.6V on the analogue ports. Control pins are compatible with 1.8V logic. The device has two single-pole double throw switches, A and ...
5V latching Hall sensor in SOT23 is automotive qualified
Diodes has introduced three-pin SOT23 automotive qualified Hall effect magnetic sensing ICs that latch on with one magnetic pole and off with the other. The open-drain output of AH1711Q, AH1712Q and AH1713Q will be switched on when applying a magnetic south pole of sufficient strength near the top of the package (perhaps with north below the package), while a north ...
Precision current sensing over 0-26V with 10mV burden and automotive qualification
Diodes has created a range of precision current shunt monitors that have a -0.3 to 26V common-mode sense range irrespective of supply voltage, allowing both high-side and low-side measurement – and a reference pin is provided for bi-directional current measurement. Called the ZXCT21xQ family, there are six gain options: 50V/V ZXCT213Q 75V/V ZXCT215Q 100V/V ZXCT214Q 200V/V ZXCT210Q 500V/V ZXCT211Q 1kV/V ...