AN32055A
FEATURES
- 7 x 7 LED Matrix Driver
(Total LED that can be driven = 49)
- Built-in memory (ROM and RAM)
- Step-up DC/DC converter
- LDO
: 2-ch
- GPIO
: 2-ch
- GPI
: 3-ch (3pins from GPI1 to GPI3 are in mon with SPI2)
- GPO
: 2-ch
- SPI Interface : 2-ch (SPI2 is only receiving.
It is possible to control only address
05h by SPI2.)
- Driver for LED (Main LED : 4-ch, Sub LED : 2-ch, LED for Photo flash : 2-ch, RGB color unit : 1-ch)
- 80 pin Wafer level chip size package (WLCSP)
DESCRIPTION
AN32055A is a 6-ch LED driver for LCD backlights, and a driver for LED matrix. They supply voltage by step-up DC/DC converter.
APPLICATIONS
- Mobile Phone
- Smart Phone
- PCs
- Game Consoles
- Home Appliances etc.
TYPICAL APPLICATION
LED 24 2
Battery
100
4.7 H
BLS [ 2ch ] BL [ 4ch ] PL [ 2ch ]
B2 G2 R2 B1 G1 R1 CHGGND VB VBLED VBDCDC
10 F
0.3 22 F
CPU I/F
LDOCNT GPI [ 3ch ] GPO [ 2ch ] GPIO [ 2ch ] LEDCNT LEDCTL VIBCTL INT CSB CLK DI DO RSTB EXTCLK
TEST1 TEST2...
