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STL6580
STL6580系列是一款具有驱动功能的BLDC风扇控制器。它具有先进的死循环控制,旋转速度变化范围在±5%之内。内建的软切换和先进的定时控制提高了马达的效率和降低了振动。STL6580支持直接PWM输入,不需要PWM到DC转换的电路,因此可以减少外部组件的数量。友好的编程接口可以调整任何风扇曲线设置。该设备提供可调的PWM输出频率,以支持单相全波驱动。 STL6580具有软启动功能,配置可程序化增量占空比,以抑制线圈电流的启动尖波,因此可以减少启动噪音并放宽功率预算。内建的软切换功能可以降低声音噪音和功率损失。该设备通过内部参考电压提供电流限制功能。热关闭功能可以保护设备不过热。STL6580支持锁定侦测并自动停止输出电流。一旦外部负载减轻,它将自动恢复到系统规定的速度。各种开漏输出类型,如 FG、RD、停止 RD 和反向 RD,被实现为系统监控具有 4 个或 8 个磁极的直流风扇速度的转速计。
Features
- Support Hall sensor / Hall IC input
- Built-in On-line Tuning for iterative performance tuning
- 5Hz ~ 84 KHz PWM input frequency range with reversible polarity
- Support soft start with programmable duty cycle and soft-switch function
- Built-in soft-switch function with programmable duration
- Closed-loop fan speed control with ±5% accuracy of rotation speed
- Programmable linear curve set by [HS], [LS], and [S0]
- Programmable fan speed curve set by 6 points
- Various open-drain tachometers: FG, RD, Stop RD and Reverse RD
- Built-in programmable period for lock detection and auto recovery
- Built-in thermal protection circuit (150°C)
- Support current-limit setting internally with multi-levels (2A max)
- Wide product selection to support 4 or 8 magnetic poles
- 2-wire communication channel to program parameters in OTP memory
- Compact DFN16 package
- Green package available
- RoHS compliant and Halogen free
- Support Hall sensor / Hall IC input
应用领域