DW9714V Upgraded Traditional AF Driver IC | Mobile Phone Camera VCM Autofocus Chip
DW9714V is a 10-bit resolution 120mA voice coil motor (VCM) autofocus driver chip developed by Korea's Dongwon Technology and promoted by Guangsheng Microelectronics. It incorporates SAC intelligent actuator control technology, which significantly reduces mechanical vibration and enhances focus response speed. It is fully compatible with DW9714A and widely used in devices such as mobile phone cameras, digital cameras, and action cameras. It is the preferred solution for high-precision micro-focus driving.
Product Core Advantages
Equipped with patented SAC? intelligent actuator control technology, it effectively suppresses mechanical ringing and achieves ultra-fast mechanical stabilization time
10-bit high-precision DAC, 120mA maximum output drive capability, industry-leading current control accuracy
Wide voltage supply range of 2.3V-4.3V, I/O voltage from 1.8V to VDD, compatible with mainstream mobile device power solutions
Supports I2C fast mode and fast enhanced mode, with a maximum clock frequency of 1MHz, ensuring efficient and stable communication
Power consumption in power-down mode is less than 1μA, featuring ultra-low power design to extend device battery life
6-pin WLCSP ultra-small package, with dimensions of 0.77mm×1.14mm×0.30mm, compatible with compact camera modules
Key Parameter Table
| Parameter Name | Parameter value | Unit |
|---|
| Supply voltage VDD | 2.3~4.3 | V |
| I/O voltage VIN | 1.8~VDD | V |
| Output current | Maximum 120 | mA |
| Resolution | 10 | Bit |
| I2C clock frequency | Up to 1000 | kHz |
| Power-down mode current | ＜1 | μA |
| Operating temperature | -40~85 | ℃ |
| Packaging form | 6-pin WLCSP | - |
Pin Definition
| Pin number | Pin Name | Type | Function Description |
|---|
| A1 | IOUT | Output | Current sink output |
| A2 | XSD | Input | Off mode (active low) |
| B1 | GND | ground | Power ground |
| B2 | SDA | Input/Output | I2C data interface |
| C1 | VDD | Power supply | Power supply |
| C2 | SCL | Input | I2C clock interface |
Package Size Diagram
DW9714V 6引腳WLCSP封裝尺寸俯視圖/側(cè)視圖/底視圖
封裝類(lèi)型：6引腳WLCSP
Outline dimensions: 0.77mm±0.030mm × 1.14mm±0.030mm × 0.30mm±0.041mm
The spacing and size of solder balls meet the high-density assembly requirements of micro-modules, and are compatible with the ultra-thin camera structure of mobile phones
Chip Internal Framework Diagram
DW9714V內(nèi)部功能框圖
The DW9714V integrates an on-chip power-on reset (POR), a reference voltage source, a 10-bit digital-to-analog converter (DAC), an I2C interface module, a SAC intelligent control module, and a power drive output stage. Its overall architecture is streamlined and efficient, enabling linear drive control of the voice coil motor (VCM) without requiring external complex components.
Typical Application Circuit Diagram
DW9714V典型應(yīng)用電路原理圖
VDD連接供電電源，GND接地，IOUT連接VCM音圈電機(jī)
SDA、SCL分別接主機(jī)I2C數(shù)據(jù)與時(shí)鐘引腳，串聯(lián)1.2kΩ~4.7kΩ限流電阻
XSD引腳應(yīng)接主機(jī)GPIO或直接接VDD，禁止懸空
在VDD與GND之間就近放置一個(gè)≥1μF的去耦電容，以確保供電穩(wěn)定
應(yīng)用場(chǎng)景
Mobile phone front/rear camera autofocus
數(shù)碼相機(jī)、單反相機(jī)鏡頭驅(qū)動(dòng)
便攜式攝像機(jī)、運(yùn)動(dòng)相機(jī)
網(wǎng)絡(luò)攝像頭、安防監(jiān)控?cái)z像頭
兼容替換與優(yōu)勢(shì)對(duì)比
可直接兼容替換市場(chǎng)主流DW9714A芯片，無(wú)需修改PCB與軟件
Compared to similar products, it features the newly added SAC? intelligent anti-shake control, with a mechanical ringing suppression capability improved by over 60%
The output current boasts higher accuracy, with linearity of INL±4LSB and DNL±1LSB, ensuring smoother and jitter-free focusing
Lower power consumption during power-down, smaller package size, and compatibility with thinner and lighter terminal devices
使用方法
After power-on, wait for a startup time of 1ms, and then write control instructions through the I2C interface
支持直接驅(qū)動(dòng)、線(xiàn)性斜率控制LSC、雙電平控制DLC三種驅(qū)動(dòng)模式
Advanced mode supports SAC2/SAC3/SAC3.5 multi-level intelligent control, adapting to different VCM characteristics
Supports NRC noise reduction control, reduces VCM operating noise, and enhances user experience
Guangsheng Microelectronics (Shenzhen) Co., Ltd.
Guangsheng Microelectronics (Shenzhen) Co., Ltd. (hereinafter referred to as "Guangsheng Micro") was established in 2023. Its predecessor, LUMENCHIP, was founded in 2010. Headquartered in Shenzhen, the capital of technology, Guangsheng Micro is a leading brand in analog chip integration services, dedicated to the technology and product implementation of mixed-signal chips since its inception, driving the development of green intelligent technologyp
Guangsheng Microelectronics integrates excellent models and channels from both domestic and overseas markets, breaking away from traditional independent distribution and agency models. We have established a dual model that combines hybrid agency distribution, market analysis and forecasting, technical solution services, and one-stop supporting supply, all in one. Our agency lines coexist with our own brands, and our distribution lines coexist with our supporting supply. The three complement each other, creating a unique style. Our mission is simple: to serve you wholeheartedly and meet your needs. We aim to provide innovative and customized products and services to global customers, helping them achieve sustainable profitability and success, and shaping the future of their markets. We engage in in-depth communication with our customers, offering unique design perspectives and providing them with competitive and comprehensive solutions and products. We conduct independent research and development, targeting leading enterprises in various electronic sub-sectors, offering a range of power management and intelligent control solutions. Our agency & distribution and solution services lead the industryp
Guangsheng Micro boasts the most comprehensive solution portfolio in the industry, encompassing MCU, power management chips, AI chips, signal chain chips, and power devices. Our product range spans signal processing, voice wake-up, voice recognition, voiceprint recognition, voice synthesis, knowledge graph, natural language processing, and intelligent dialogue. Leveraging our robust marketing planning capabilities and extensive professional market operation experience, we have secured authorizations from leading partners such as DONGWOON, PowTech, CR MICRO, Huajing Micro CRHJ, Yongyuan Micro APM, Coolsemi, Anhai Semiconductor ANHI, Reasunos, OCX, MassChip, XLSEMI, Zhixin Semiconductor, NSIWAY, EGmicro, Ruimeng Technology, ChipWays, AISPEECH, and Aerosemip
Guangsheng Micro adheres to the corporate values of "Prioritizing the striving, focusing on customers, and persisting in value contribution". It focuses on the technology and product implementation of agent chips, promotes the sustainable development of green intelligent technology, and leads the global semiconductor segment in agent distribution and application solutions.
Company official website: http://huimai2.com
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