System Power ICs for CCD Camera in Mobile Phones

ROHM's BD6023AGU and BD6025GU series system power supply ICs for integrated CCD sensor in mobile phones and a display LED driver into a single chip. A chopper-scheme voltage booster circuit in the power source allows it to respond to an increased load current caused by increasing pixels. Both series balance high performance and low power consumption and are offered in a compact VCSP85H5 (5.5mm × 5.5mm) package. In comparison with existing technology, the VCSP85H5 package is 36% smaller. Using this IC results in a reduction in the number of internal components in the mobile phone by 52%.

· Applications

Mobile phones

· Series Specifications and Features

Part Number	BD6023AGU	BD6025GU
CCD Plus voltage	Switchover between 15V/13V enabled	Switchover between 15V/13V/12V enabled
CCD Minus voltage	Switchover between -8V/-7.5V/-7V enabled	Switchover between -8V/-7.5V/-7V enabled
DSP I/O Voltage	Switchover between 3.0V/3.1V enabled	Switchover between 3.0V/3.1V enabled
DSP Core Voltage	Switchover between 2.5V/1.8V enabled	Switchover between 1.2V/1.8V enabled
Backlight LED Driver	3ch(max30mA/ch)	2ch(max30mA/ch)
RGB orFlash LED Driver	3ch (max150mA/ch) Maximum of 450mA current drive	3ch (max 150mA/ch) Maximum of 450mA current drive
Package	VCSP85H5(5.5mm × 5.5mm) Compact size chip package (Actual package size is 36% smaller than existing technology and its usage reduces the number of internal components required by 52%.)	VCSP85H5 (5.5mm × 5.5mm) Compact size chip package
Features	·Compatible with high-pixel CCD cameras with 2M pixels or more. ·Offers multiple output power levels, thereby accommodating various CCD cameras. ·CCD power supply (4 channels) ·Fixed current driver for focus ·White LED driver for main LCD backlight ·White LED driver for sub LCD backlight ·RGB LED driver that can also be used for flash	·CCD power supply (4 channels) ·Offers multiple output power levels, thereby accommodating various CCD cameras. ·White LED driver for main LCD backlight ·White LED driver for sub LCD backlight ·RGB LED driver that can also be used for flash