- 制造厂商:AD
- 产品类别:数字电源系统管理
- 技术类目:集成数字电源系统管理的升压稳压器
- 功能描述:具有PMBus接口的多相同步升压控制器
- (AD代理渠道,提供当日发货、严格的质量标准,满足您的目标价格)
LTC7841是一款高性能单输出同步升压转换器控制器,可异相驱动两个N通道功率MOSFET级。多相工作降低了输入和输出电容要求,并允许使用比单相等效产品更小的电感。同步整流可提高效率、降低功耗并缓解热需求,从而实现高功率升压应用。可通过兼容PMBus的串行接口将输出电压调节至60V,分辨率为0.2%。该串行接口还可用于回读故障状态、输入/输出电流、输入/输出电压和温度。系统配置和监测由 LTpowerPlay 开发系统提供支持。
多相操作允许将LTC7841配置为2相、3相、4相、6相和12相操作。
应用
- 汽车系统、医疗、工业
- 宽 VIN 范围:4.5V 至 60V
- VIN = 12V 时,整个温度范围内的总输出电压精度为1%
- 与 PMBus 兼容的串行接口:
- 可编程 VOUT:高达 60V 且分辨率为 0.2%
- 回读平均和峰值温度、电流和电压(25Hz 刷新率)
- 故障状态
- 可锁相频率:75kHz 至 850kHz
- 上电时间少于 1ms
- 电源正常输出电压监控器
- 内部 LDO 通过 VBIAS 或 EXTVCC 向栅极驱动供电
- 低关断电流:IQ < 10μA
- 4 相时钟输出(40A 输出电流)
- 提供耐热性能增强型 5mm x 6mm QFN 封装
- AEC-Q100认证中
LTC7841EUHE#PBF,封装:36-Lead QFN (5mm x 6mm x 0.75mm w/ EP),包装形式及数量:管装,61,工作温度:-40 to 125C,AD官网报价:5.21(100-499个);4.35(1000+个)
LTC7841EUHE#TRPBF,封装:36-Lead QFN (5mm x 6mm x 0.75mm w/ EP),包装形式及数量:卷带,2500,工作温度:-40 to 125C,AD官网报价:5.21(100-499个);4.35(1000+个)
LTC7841IUHE#PBF,封装:36-Lead QFN (5mm x 6mm x 0.75mm w/ EP),包装形式及数量:管装,61,工作温度:-40 to 125C,AD官网报价:5.74(100-499个);4.79(1000+个)
LTC7841IUHE#TRPBF,封装:36-Lead QFN (5mm x 6mm x 0.75mm w/ EP),包装形式及数量:卷带,2500,工作温度:-40 to 125C,AD官网报价:5.74(100-499个);4.79(1000+个)
LTC7841JUHE#WPBF,封装:36-Lead QFN (5mm x 6mm x 0.75mm w/ EP),包装形式及数量:管装,61,工作温度:-40 to 150C,AD官网报价:5.47(100-499个);4.60(1000+个)
LTC7841JUHE#WTRPBF,封装:36-Lead QFN (5mm x 6mm x 0.75mm w/ EP),包装形式及数量:卷带,2500,工作温度:-40 to 150C,AD官网报价:5.47(100-499个);4.60(1000+个)
DC2798A:LTC7841 | 60V Dual-Phase Single Output Synchronous Boost Controller with PMBus
Demonstration circuit 2798A is a high voltage, dual-phase single output boost converter with 10V to 16V input range. The output voltage is adjustable from VIN to 48V. And the output can supply a 10A maximum load current. The demo board has a LTC7841 controller, which is a 60V dual-phase single output boost controller with digital power system management. Please see the LTC7841 data sheet for more detailed information.
The DC2798A powers up to default settings and produces power based on the command from the serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay onto your PC and use ADI’s I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on-the-fly, view telemetry of voltage, current, temperature and fault status.