DRV8305: 1-PWM Mode high impedance state issue
Part Number:DRV8305I was trying to configure the driver to single pwm mode.2 of the 3 phase which are supposed have signals are working fine but the phase in which high z state is to be present is not...
View ArticleDRV8838: Separate Ground symbol in Block Diagram?
Part Number:DRV8838Hello,In the datasheet for the DRV8838 on Page 10 there is the functional block diagram and customer pointed out that there are two separate symbols for ground. Is there a particular...
View ArticleClik here to view.
DRV8305: SHx output voltage at power on
Part Number:DRV8305Dear all,I tested DRV8305 and had question.*I attached test fileCH1:yellow = PVDD voltage(=24V input)CH2:green = SHA voltageWhen power on, I thought that SHA output 12V=24V/2....
View ArticleClik here to view.
DRV8305: pulled dpwn behavior of SHx at UVLO
Part Number:DRV8305Dear all,I confirmed power off test and had question.I found that SHA was pulled 0V when PVDD went down about 5V.CH1:yellow = PVDD voltage(=24V input)CH2:green = SHA voltageDoes this...
View ArticleDRV8305-Q1: Reset of DRV8305-Q1
Part Number:DRV8305-Q1Dear, AllCustomers are worried about dealing with the malfunction of DRV8305-Q1 state machine operation.If they know that the DRV8305-Q1 state machine malfunctioned, is there any...
View ArticleDRV8305: the gain of shunt amplifier is half as value as the setting value
Part Number:DRV8305Dear all,I investigated the gain settings of shunt amplifier in DRV8305NPHPR in following way.As a result, the gain is half as value as the setting value.Do you have any idea to...
View ArticleDRV8301: DRV8301 making humming sound with load on 3.3V
Part Number:DRV8301Hi All,I am using the DRV8301 in a design. I soldered only the components necessary for 3.3V output and see a 3.3V output that gets noisier with an increase of the VBUS voltage....
View ArticleDRV8870: DRV8870
Part Number:DRV8870Hi, I am using DSPIC33EP512 MCU to control the PWM output of DRV8870. When set the duty cycle to any level between 1-100% to PWM control IN1 or IN2 of DRV8870, the output of Out1...
View ArticleDRV8818: Vcc logic supply voltage level
Part Number:DRV8818Hi,I am trying to swap this in as a replacement for an older stepper driver, but we were using a 6V supply for that one, the max limit says 5.5V, and I am mesuring around 5.6V-5.7V...
View ArticleDRV10983: Looking for DRV10983 supported controller.
Part Number:DRV109831. I m looking forward to use DRV10983 to control BLDC motor. Can somebody tell me what is the criteria to choose a controller to support the driver?2. Can somebody suggest me a...
View ArticleClik here to view.
I'm looking to drive a low voltage, low amperage motor, and I'm wondering if...
Hi, I'm looking to create a battery powered application that drives a motor. Only one motor, only one control, like this:But mine is different. The whole application runs on a Li-Ion battery, so I...
View ArticleBLDC MOTOR DRIVER IC
Hi, I'm using a hub motor with 24V - 48V and 25A maximum current. what driver will work for that current and voltage.Please suggest me some motor driver controller ic and it should be...
View ArticleEquivalent of MLX90805
Hello Team,Do we have a device similar to MLX90805? I have attached datasheet here.(Please visit the site to view this file)One of my customer is looking for alternate for this.Regards,Mahendra
View ArticleClik here to view.
DRV8305: Non-Linear PWM-RPM Relation when using High Frequency PWM
Part Number:DRV8305Hello Everyone,We are using DRV8305 for driving a BLDC motor in 1-PWM mode with a 200kHz PWM signal. We have observed sudden changes in motor speed in specific ranges of PWM duty...
View ArticleDRV8844: V3P3OUT reference
Part Number:DRV8844Hi,What is the reference for V3P3OUT, is it VNEG or LGND?I couldnt find that information in datasheet.
View ArticleCompiler: Keil
Tool/software: TI C/C++ CompilerHello,I am using Delta Connection Stator in BLDC Motor and it has 5 pole pairs. How could the commutation pattern be done for this configuration? I will be grateful if...
View ArticleDRV8303: Fault condition resulting in configuration reset
Part Number:DRV8303I am experiencing what appears to be a DVDD fault condition, but am unable to observe any problems on the DVDD output pin. The behavior is as follows:1) fault pin is asserted by...
View ArticleDRV8301: Whetehr DC motor diver hardware have brake function or not?
Part Number:DRV8301Customer is teting the EVM LP69M-1DRV-BNDL. They would want to know whetehr DC motor diver hardware have brake function or note. Thanks a lot.
View ArticleDRV8305-Q1: About tDRIVEP/N and Vgs monitor of DRV8305-Q1
Part Number:DRV8305-Q1I want to confirm about DRV8305-Q1.Q1.I understand like an attached file.Do bits D9 to D8(tDRIVEN) of register 0x5 appropriated to tDRIVEN_LS in Figure 11?Also,Do bits D9 to...
View ArticleDRV8323: DRV8323 - 50V or 60V max?
Part Number:DRV8323Hello -I have custom hardware utilizing TIs InstaSPIN technology and a DRV8301 gate driver currently (plus an external current shunt amplifier for full three-phase sensing).I am...
View Article