1 Over View

RAA305350MGBM is general-purpose 3CH H-bridge driver IC .This is a small size single chip IC constituted by the

control block built in 32 bits RISC microcomputer and DSP, and by the driver block built in hall signal processing

circuit.

2 Features

Applications

Smart phone, Tablet, Camera, Sensing and Actuator Control

Driver Block

[CH1/CH2/CH3]

(1)Built-in 3 channels H-bridge drivers

Composition : CH1, CH2, CH3

(2)Built-in 3 channels Hall signal processing circuits

Composition :

Constant Current Bias --- 3 channels

Gain Amp --- 3 channels (with gain resistor)

(3)Built-in 12bit-ADC with 6 channels input selector

(4)Configurable for VCM/Piezo/SMA/BLDC motor drive

(5)PWM/Linear drive

(6)Other

CH3（AF Control case）；Supports open/closed loop control

Controller

(1)Built-in 32bit RISC CPU

(2)Built-in Code Flash ROM(48KB)

(3)Built-in RAM(8KB) for program

(4)Built-in DSP 2 channels (GREEN_DSP_V2)

(5)Built-in SPI 2 channels

(6)Built-in Timer (16bit) 4 channels

(7)Built-in IIC serial interface 1 channel

(8)Built-in General purpose I/O 8lines (with interruption function)

(9)Clock frequency : Built-in PLL (x4, x6, x8, x12, x16)

For system clock ------------------------- 32.4MHz(Max)

For PWM clock of motor control ------- 162MHz(Max)

For SPI serial clock ----------------------- Master 4MHz(Max), Slave 2MHz(Max)

For IIC serial clock ----------------------- 1MHz(Max, Fast Mode+)

Others

(1)Built in POR(power on reset), TSD(thermal shut down)

(2)Built in Power save mode

(3)Built in IS/AF Driver control synchronized signal from Image Sensor (OIS case)