Development of Next Generation Coiled Power Inductor by Toko
Toko inc. a leading Japanese developer and manufacturer of electronics parts that developed the world’s first intermediate frequency transformer (IFT) for transistor radios back in 1955, today made an announcement on development of next-generation coiled power inductor with measly size of 2.5×2.0×1.2mm. The newly power inductor has been targeted to be implemented in such personal electronic application as cell phones, smart phones and digital cameras to name a few. The new product combines the coil and the core into a single unit resulting in reduced audible noise which is normally associated with coils. The new coiled power is approximately 80% smaller in element volume size than company’s previous model which was 4mm square. The new coiled power was designed based on patented process in using proprietary materials, structures and methods. The development of this product was respond to increasing demand for smaller, thinner products using low-resistance coils and highly dense flat power lines as well as metallic magnetic materials capable of resisting magnetic saturation plus it can be used in direct currents. The new coiled power inductor will go in mass production by beginning of April 2010.
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[...] TOKO has developed a low dropout 6ch high-side constant current LED driver IC in a very small 12-bump flip chip package. The newly developed TK60033AB7 IC has two groups of LED driver blocks which are separated into a 4ch and a 2ch, where each group has an independent enable control input pin (EnA, EnB) and an LED current setting pin (SetA, SetB) allowing two different output current settings. In an event when higher current is required, connecting the LED output pins in parallel is one possible way of increasing the LED current since each LED output pin is an independent high-side current source. The brightness of each LED in newly developed TK60033AB7 can be controlled by applying a pulse width modulation (PWM) dimming signal to each enable pin. Within the TK60033AB7 no switching signals are generated eliminating any electromagnetic interference (EMI) issues. The small form factor of the IC package helps in reducing a the space required for portable applications. The new TK60033AB7 offers a good LED current matching, high accuracy of +/- 3% at 15mA LED current, low dropout voltage, capacitor less design, over-current and over-temperature protection to name a few. source Share and Enjoy: [...]