The offline open load detection (OLD) diagnostics feature ensures that the load is connected to the driver before driving the load. This is a safety feature so you can determine bad load connection without potentially spinning the motor.
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Part Number: TPS65145 Other Parts Discussed in Thread: DLPC6540 TI的工程师 你好
我在使用TPS65145时,发现以下故障:上电后,TPS65145的使能信号出现一段时间的抖动(确定该抖动不是来自上一级输出端DLPC6540),之后该芯片输出异常,电压跌落;
第一次试产没有该问题,第二次试产出现3片该问题的板子;以下是示波器的测试图片,以及使用芯片的丝印,附件是设计的原理图,以及TI官网的参考设计图。
期待您尽快支持和答复。
TPS65145_DMD_Vbais…
Part Number: DRV8316
Hello, when I was using drv8316 to drive the motor, I found that in the 8.3.11.2 Current Sense Amplifier Offset Correctior section of the data manual, Current sensed in Phases A&B, Formula (8) and (9) both write ia, and ib is not…
These specs hold true across the full range of device operating voltages and temperatures and accounting for device-to-device variation. You'll probably find that for a smaller set of operating conditions that this accuracy is much improved, though it…