ON Semi ASICs target handheld apps

ON Semiconductor has announced the availability of a family of power management ASICs (PM-ASICs) that are aimed at extending battery life, enhancing switching efficiency, supporting low- voltage operation, and conserving board space in multi-functional cellphones, PDAs, and other handheld electronics.

The family features two integrated power management ICs with battery chargers - the NCP4110 for cellphones and the NCP4100 for PDAs and other handhelds - and the NCP4111 which does not integrate a charger, making it suitable for cellular handsets and telematics specifically designed to utilize external battery chargers.

The NCP4100 integrates a touchscreen interface and a comprehensive audio block into an 81-pin LFBGA package with an 8-by-8mm footprint. The device is specifically designed to extend product run time.

It also offers programmable features including the battery charger, a full-feature audio section, two synchronous buck regulators, two LDOs, a reset circuit, and an undervoltage lock out. Vibrator motor driver, LED driver, switches, an ADC and an SPI interface have also been integrated.

The NCP4110 is claimed to provide a more streamlined power management approach than existing CDMA chipsets for cellular handsets and can also be used for TDMA and GSM platforms. This device is currently packaged in a 48-pin QFP (9-by-9mm) and will soon be offered in a QFN (7-by-7mm) package as well.

Programmable features include the battery charger, seven LDOs, the synchronous buck regulator, and a reset circuit. It also includes a vibrator motor driver, LED and buzzer/ringer drivers, ADC, and an SPI interface have also been integrated.

The NCP4111 is offered in a 48-pin QFP and will also be available in a QFN package. Programmable features include nine LDOs, a synchronous buck regulator, and the reset circuit. A vibrator motor driver, LED and buzzer/ringer drivers, an ADC with MUX, and an SPI interface have also been integrated.