product overview

Bus Buffer Contact Protection Temperature Control Hair Styling Tools Power Control LED Driver Hendon Semiconductors covers a wide range of different integrated circuits to suit different market areas such as data interface, domestic home applicances and personal care appliances. Hendon Semiconductors products mainly focus on thermostatic control, mains operated controls including data interface in 2-wire bus system. Below details the different product categories.

bus buffer for 2-wire bus system

Hendon Semiconductors have been a long established supplier of bus buffer integrated circuits for I2CTM, 2-Wire, SMBusTM, PMBusTM and AccessBus markets. We now have a range of high performance bus buffer integrated circuits to suit a wide range of existing and developing applications where bus-buffering requirements are more demanding. The range consists of I2C compliant dual bi-directional bus buffers with or without hot insertion logic and a range of simple 2-wire bus buffer. More information is available from our official Bus Buffer website at www.bus-buffer.com I2CTM is a trademark of Philips Semiconductors Corporation now NXP SMBusTM and PMBusTM are trademarks of System Management Interface Forum (SMIF) Inc

mains relay switching and contact protection

Mains relays expected performance and lifetime are often limited due to arcing at relay contacts. The implementation of effective contact protection extends both mains relay reliability, and operational reliability of the circuit in which it operates. The first product in this family, IES5541A, relay driver with contact protection, guarantees longer relay life, higher switching rates and significantly lower EMI interference. The IES5541A provides effective arc suppression solution in a wide range of mains relay switching applications where either sensing or logic driven inputs are used.

temperature control

This family presents a range of zero crossing triac control integrated circuits designed for various heating/cooling operations with a single or multiple feedback control. Choose from either a simple ON/OFF or proportional controller integrated circuits to meet your thermostatic needs. These integrated circuits require only low external component count and have wide operating temperature control range. Ideal to be used with mains heating element for heating or cooling operations in home kitchen appliances such as electric frypans, oven, toasters, kettles and including irons where cost and board space are an issue.

hair styling tools

Hendon Semiconductors Hair Styling Tools integrated circuits are designed particularly for this market. It features simple zero crossing triac triggering with minimal external components; ideal for small board space in hair straighteners and curling irons. Additional features such as time out timer as safety feature is also available in some integrated circuits. Proven easy solutions with millions sold annually.

power and mains phase control

OM5428, phase control integrated circuit is designed to replace the now obsolete TCA280B product. OM5428 offer similar features as the TCA280B but for use with modern high reliability, high sensitivity three-quadrants or snubberless triacs such as in the NXP (Philips) Semiconductor range. The new OM5428 offers soft start triac phase control including universal motor power / speed control.

LED driver

Light Emitting Diode (LED) driver integrated circuit, able to operate from a single AA battery (1.2V) and driving up to 250mA LED load current, via a boost mode application. A simple LED drive solution providing one of the most cost effective, high efficiency light control applications available. Ideal for torch lights, mobile or any other applications requiring the use of single cell battery.