Power management

Can I replace 5 ohm NTC from circuit of application note AN2097 ?

I am trying to replicate the circuit given in application note AN2097 which is a 10W SMPS at 12V.I am stuck 5 ohm NTC used in the circuit. Can you tell me the wattage of it. It is very expensive also, please tell me any way to replace it. Please find...

Anybody knows about the control of BLDC motor using two hall sensors and how to find out the exact mechanical angle between the hall sensors

We know that. when using three hall sensors, the 3 Hall sensors should be spaced across the printed-circuit board (PCB) so that they are 120° electrical degrees apart. From the center of the motor axis, the number of degrees each sensor should be spa...

DEAR Sir/Mam I have purchased your X-NUCLEO-IHM07M1Three-phase brushless DC motor driver expansion board based on L6230 and i am driving this by using lpc2138 evaluation board. Can you please tell me that how to drive this card.

DEAR Sir/MamI have purchased your X-NUCLEO-IHM07M1Three-phase brushless DC motor driver expansion board based on L6230 and i am driving this by using lpc2138 evaluation board.Now the problem is that i can't find any input data for driving this motor ...

L7987L - negative (or inverting) buck-boost schematic example

In the datasheet of the L7987L there is an application schematic for a negative converter (p36), here the VCC is connected to VIN with a 10 Ohm resistor and a capacitor to the generated negative rail (I guess is to filter the power for the low power ...

6-step library not working

I'm trying to work with the STSW-SPIN3202 6-step firmware example for the Keil MDK, specifically the potentiometer example. I opened the firmware and in the infinite while loop I have MC_StartMotor() as per the instructions listed in there. But nothi...

Error in DS11245 Rev 3 datasheet Table 1 (LDL212)

Table 1, Pin description, on page 3 lists pin number 1 of DFN6 on GND row with a description of "Output voltage". It should be combined with pin #3 on Vout row.https://www.st.com/content/ccc/resource/technical/document/datasheet/group3/df/64/f9/b7/91...

What model of internal drivers and IGBTs does STGIPS15C60 contain?

Sir/Ma'am, I have recently bought STGIPS15C60 SLLIMM™ small low-loss intelligent molded moduleIPM, 3-phase inverter - 15 A, 600 V short-circuit rugged IGBT. I have obtained the datasheet of said device however in the datasheet some parameters our mis...

Please clarify the below query regarding the Pin#5 Inhibit of LDO LM2931AD33R. Will this IC can be enabled if pin#5 (Inhibit) is left open ?

Why are L6599 and mos-switch on the circuit board damaged?

Mass production is normal;There is no short circuit from pins of element;Some resistance are damaged；The voltage stabilizing diode of VCC pin is damaged;The drive signal of the switch tube is normal;The temperature of the switch tube and L6599 is nor...

L6470: Linear Coordinates

I’ve made a T-Bot similar to this http://www.buildlog.net/blog/2017/10/the-midtbot-a-new-flavor-of-h-bot/ design. Using stepper motor driver L6470, I can control the movements e.g. up/down, left/right and diagonally using the equations shown here htt...