Hi!

I use Smart Highside Power Switch BTS6133D to switch the backup SLA battery. BTS6133D have Inversave (Inverse current capability) feature.

In charge mode current flows from VBB to OUT (normal flow). Charge current limited to 2A.
In discharge mode current flows from OUT to VBB (Inverse load current). Discharge current not exceed 7A.

If current direction change from normal to inverse with device is on (pin IN is low), no problem. Power switch remain ON and no excess power dissipation occur.
If the reverse current occurs when the device is switched off (pin IN is high), excessive power dissipation occurs when the current flows through the internal diode. This is understandable and normal.

I have problem and question:

With the reverse current occurs when the device is switched off (pin IN is high), external logic detects this mode and immediately set BTS61333D to ON state by set pin IN to low.
Unfortunately, with this BTS6133D remain OFF state and a high power dissipation continues.
It looks like it's not normal.
From reading the datasheet, it's unclear how 6133D should function in this case.

Best Regards,
Mikhail Show Less

I currently am using two BTS711L1 N Channel Power FETs to drive 8 proportional valves, however a common issue with proportional valves is as current is applied to them, they heat up and as a result the resistance increases and the current decreases. I am hoping to develop a constant current circuit similar to the way LED drivers work (I can't find an LED driver capable of up to 2A at 24V). Does anyone have experience with this type of circuit design?

Regards,

Adam Show Less

Hello,

I have visited and posted to these forums many times with great success for help with the XMC4500 so I figured I would try to get some help here for some hardware.

I have the BTS432E2 "ProFET" and I am hoping to drive both(not at the same time) 12V and 24V proportional valves for a body controller I am developing. Using the XMC4500(Relax Lite Kit) I have a microcontroller outputting PWM voltage signals, and I want to connect these to the ProFET in order to drive my proportional valves (0 to 1.2A).

My problem is when I try to apply voltage to the ProFET I receive no output. Following the datasheet my connections are as follows:



Pin 1: GND (Connected to XMC4500 Breakout so GND is common)
Pin 2: PWM Output from XMC4500
Pin 3: +12V (Bench Power supply rated up to 3A)
Pin 4: Voltage Meter to troubleshoot for now (Plan to connect to XMC4500 for feedback)
Pin 5: Proportional valve terminal

The other proportional valve terminal is connected to ground.

I have used these valves numerous times and they work flawlessly when adjusting current on bench supply, but they draw no current in my current configuration with the ProFET. Is the signal from the XMC to low, requiring a gate driver?

Any help would be greatly appreciated

Thank you,

Adam Show Less

Hi,

setting up a H-Bridge by using BTS7960B Drivers.

If you have a look at the Data sheet 6.1 Application Example.

Do i shorten the Load in case of enabling both INH pins?

many thanks
Jakob Show Less

Hello everyone ;

Could you suggest a circuit to isolate BTS5215L from microcontoller using optocoupler?

Any suggestion to protect BTS5215L from reverse battery when battery is conncted reveresed ?

Thank you inadvanced . Show Less