Power management

L6398 Problem

Hello my Friends.Please help me.I got a problem with L6398 for bldc driver.the above picture is 1 phase for bldc driver using L6398 and FR3607. After I got PCB and soldered it. But when I tested it, I got the problem as:Here is the truth table of L63...

VNH7040AY can't start 120W brush motor

We use VNH7040AY to drive a 120W brush motor(23v-29v), however, can't start, need to remove the load, or reduce the load. we have also done such as soft-start, connect in series NTC(4R) to start, not getting very good improvement. Could you give us s...

What's the meaning of pull-up and pull-down in ALED6001's Rpwmo setting?

HelloWhat's the meaning of pull-up and pull-down in ALED6001's Rgate & Rpwmo setting?Is Rgate in pull-up case case in the ALE6001's Demo kit AN4549?Is Rpwmo in pull-down case in the ALE6001's Demo kit AN4549?Is Rgate in pull-down case case in the ST ...

[STC3115] Voltage and Current sensing is OK, but SOC is always same value.

I checked voltage and current is checked correctly but SOC value did not changed.(In stc3115_BasicExample.c)​So, I tried to test with 'stc3115_AdvancedExample.c' and I found it could not go to 'GasGauge_Initialization' function.​The reason is that th...

MISO line always low

I have tested AutoDirver board(L6470) with Arduino and everything worked.When I use Toradex Colibri EVA board (Imx 7) to control the AutoDirver board(L6470), I cannot get any response from L6470. The MISO line always low. Can you give me clue on how ...

SPI Electrical characteristics

Based on L6470 datasheet -> 3. Electrical characteristics -> SPI ->tholCS Chip select hold time min 10 ns.Does 10ns is correct value? I searched from google, the following link sayshttps://electronics.stackexchange.com/questions/152700/spi-chip-selec...

Could you please review that power supply design using LDO LDL212PVR.

VNQ500 burns out

Hello, We are using the VNQ500 in our board to drive loads at 24V. While testing our board the VNQ500 causes troubles and we noticed high voltage going back to the inputs of the MCU. Our schematic is pretty simple: VCC, CE and EP are all connected to...

VNH5050 diag pins and pwm input

I am designing a quad motor controller using 4 vnh5050. The motors will be controlled independently through INA1 - INA4 & INB1 and INB4 signals from uC.In order to keep pin count usage down:1) Can I connect the DIAGA and A DIAGB pins together and ...

VNQ500 Input High Voltage ambiguity

Hi,We will use VNQ500 in our circuit but I cannot be sure on Input high voltage value. In datasheet:Table 7 says Vih = 3.25 VoltsFigure 15 says Vih = 2.8 Volts and decreases with increasing temperatureWhich value should I take into account. Is it eno...