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CXMD3278单10位DAC通过I2C串行接口进行控制有150毫安的输出电流接收能力400kHz的时钟速率操作DAC UVLO复位电路断电功能和完全匹配的感测电阻器固定I2C逻辑阈值2.3至5.5V电源
| 产品型号： | CXMD3278 |
| 产品类型： | 电机驱动IC |
| 产品系列： | 马达驱动系列 |
| 产品状态： | 量产 |
| 浏览次数： | 39 次 |
产品简介
CXMD3278是单10位DAC，具有150毫安的输出电流接收能力。CXMD3278设计用于音圈电机的线性控制，能够在2.3V到5.5V的电压范围内工作。DAC通过I2C串行接口进行控制，该接口以高达400kHz的时钟速率操作DAC。CXMD3278集成了一个UVLO复位电路、断电功能和完全匹配的感测电阻器。UVLO复位电路确保当电源接通时，DAC输出为0V，直到发生有效的写入位值。它具有断电功能，可将设备的电流消耗降低到最大1uA。CXMD3278专为自动对焦和光学变焦照相手机、数码相机和摄像机应用而设计。CXMD3278的I2C地址是0x18。
最小占地面积的WLCSP包
坡道控制电路
固定I2C逻辑阈值
10位D-to-A转换器
146μA输出分辨率
I2C串行接口（1.8V输入可用）
低电流睡眠模式
2.3至5.5 V电源
最小占地面积的WLCSP包
坡道控制电路
固定I2C逻辑阈值
10位D-to-A转换器
146μA输出分辨率
I2C串行接口（1.8V输入可用）
低电流睡眠模式
2.3至5.5 V电源
技术参数
| 输入电压范围 (VIN) | V ~ 2.3Vto5.5VV |
|---|---|
| 输出电压 (VOUT) | ADJV |
| 输出电流 (IOUT) | 1.5AA |
| 工作频率 | 500KHzHz |
| 转换效率 | 95%% |
| 封装类型 | WLCSP6 |
| Motor type | 马达驱动系列 |
| Control method | Sine/Square |
| Control interface | PWM/VSP |
| Microstep | 1/2/4/8/16/32/64 |
| Protection | 过流/过热/欠压/短路 |
| Drive method | 全桥/半桥/H桥 |
| Features | 低功耗/内置MOSFET |
| Application | 工业控制 |
| Operating temp | -40℃~125℃ |
| Reference design | Sensor and Fan Controller |
| Iq | 2uA |
| Accuracy | ±1% |
| Output Current (mA) | 1.5A |
产品详细介绍
目录
7.相关产品
产品概述 返回TOP
The CXMD3278 is single 10-bit DAC with 150mA output current sink capability. Designed for linear control of voice coil motors, the CXMD3278 is capable of operating voltage from 2.3V to 5.5V. The DAC is controlled via a I2C serial interface that operates DAC by clock rates up to 400kHz. The CXMD3278 incorporates with a UVLO reset circuit, power-down function, and exactly matched sense resistor. UVLO reset circuit ensure when supply power up, DAC output is to 0V until valid write-bit value takes place. It has a power down features that reduces the current consumption of the device to 1uA maximum. The CXMD3278 is designed for auto focus and optical zoom camera phones, digital still cameras, and camcorders applications. The I2C address for the CXMD3278 is 0x18.
产品特点 返回TOP
WLCSP package for minimum footprint
Ramp control circuit
Fixed I2C logic thresholds
10-bit D-to-A converter
146μA Iout resolution
I2C serial interface (1.8V input available)
Low current sleep mode
2.3 to 5.5 V power supply
应用范围 返回TOP
Digital camera
Cell phone
Lens auto focus
Web camera
Package:
6-Bump Chip Scale Package
0.80mm(W) x1.20mm(H) x 0.3mm(T)
0.4mm Bump Pitch
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产品封装图 返回TOP
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| 马达驱动IC系列 | |||
| 型号 | 工作电压 | 封装 | Product Name |
| CXMD3278 | 2.3V to 5.5V | WLCSP6 | Low Voltage 10-bit Voice Coil Motor Driver with I2C |
| CXMD3279 | 2.3V to 5.5 V | WLCSP6 | Low Voltage 10-bit Voice Coil Motor Driver with I2C |
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