Part Number: BQ25756 1.使用贵公司该系列产品对超级电容充电,为什么充电一段时间后,电压升高到一定值,就没有输出电流了?并且充电状态仍然为不变“Fast Charge”
2.寄存器配置:
//0010: Charge Voltage Limit:15V
//0050: Charge Current Limit--1A
//0060: Input Current DPM Limit--3A
//0382: Input Voltage DPM Limit--4…
Other Parts Discussed in Thread: LM5145 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1467479/lm5145design-calc-negative-output-current-for-ibb-c…
您好
Thanks for confirming this. I was able to get some information regarding the behavior. The current clamp circuitry should not hiccup meaning it should clamp and stay clamped at a given output current. What you might be seeing is that the thermal protection…
Part Number: BQ25730 When we were testing the FRS function of BQ2730, we found that the output current limit was not determined by the OTG Current register for a short period of time (a few milliseconds) after triggering the FRS. If the test output current…
Part Number: AWR1843BOOST
The product description states that a power supply greater than 2.5A is required, but the user guide says:(2.5-A current limit),
So, should I choose a power cord greater than 2.5A or less than 2.5A?
Does this plug I have meet…
Part Number: LM61460-Q1
1、In the case of light load, whether the output is normal and whether there is a protection mode for light load
2、According to the Datasheet, when the load current is less than half of the ripple current, it will enter DCM. At…
Part Number: LM3485 Hi Team,
I would like to add a little more information. The power supply settings are: voltage 23.5V, current limit 2.1A. The current is 2.1A when the host is charging. The test is as shown on the right, which meets the current limit…
TPS255x parts enter constant current mode during current limit condition; TPS255x-1 parts latch off。
另外,在datasheet 9.3.1 Overcurrent Conditions部分也有详细介绍二者区别。
www.ti.com/.../tps2553.pdf
please share the DS of the transformer to complete the schematic review.
As mentioned above, efficiency and EMI will be a challenge. I recommend using a push pull controller for this case. Push pull controller allows to deliver more power with a limited…