Overview: BL24211 10 bit Resolution VCM driver IC with I2C interface
BL24211
I2C interface 10bit resolution drive for VCM V1.0 BL24211 Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited 1-16 © 2016 Belling All Rights Reserved .belling..cn BL24211 10 bit Resolution VCM driver IC with I2C interface
1. Introduction
BL24211 applied to smart of phone the camera. It can control voice coil motor and it can sink 100mA current of 10 bit DAC ponent.
BL24211 contains power on reset (POR), power down (PD), fast smart mode (FSC). The POR can allow sink pin to output 0V after power on. When user closed the camera, The PD could down power consumption until 1uA. The lens of camera would produce to damping vibration during the autofocusing. The vibration can affect that the lens move to clear of position. Using FSC mode can reduce damping vibration. FSC make lens to fast of stabilize. 2. Performance IC of ID ：00010100.
Power on reset (POR) Power down（PD） Direct mode control Fast Smart control（FSC）
ｏ FSC1 ｏ FSC2 ｏ FSC3
10bit resolution for 100mA current Current (mA) 100 80 60 系列1 40 20 0 DAC 512 1023 Figure1:10bit & 100mA Voltage rang (VDD) ｏ Supply to ：2.3V to 4.2V ｏ I2C interface ： 1.8V or 3.3V
Interface ｏ I2C Serial munication Rate 400KHZ ｏ I2C write address：0x18 ｏ I2C read address：0x19
Packaging: ｏ WLCSP , 1.14*0.73m BL24211 Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited 2-16 © 2016 Belling All Rights Reserved .belling..cn BL24211 10 bit Resolution VCM driver IC with I2C interface
3. Pin definition
3.1 Pin Sink 1 GND 2 VDD 3 6 XSD 5 SDA 4 SCL XSD 6 SDA 5 SCL 4 1 Sink 2 GND 3 VDD Top view Figure2: Pin Num Bottom view 3.
