Hi,
I've been using the Mosfet driver TC4427A (Microchip.com) to drive a Lego 9V mini motor (Lego 43362) based on PWM. I-max here is 350 mA, so that shouldn't be a problem. PWM driving signal is generated by an Atmel Atmega, about 3kHz. All went quite well for a minute or so, then smoke
started coming out of the TC4427A. The Vdd of the TC4427A was powered directly by a 9v DC (unstabilized) wall wart, without extra capacitors, maybe switching the TC on and of 100x per second ... could that be the problem ? So I need a 9V voltage regulator with some capacitors ? Any suggestions ?
I've been using the Mosfet driver TC4427A (Microchip.com) to drive a Lego 9V mini motor (Lego 43362) based on PWM. I-max here is 350 mA, so that shouldn't be a problem. PWM driving signal is generated by an Atmel Atmega, about 3kHz. All went quite well for a minute or so, then smoke
started coming out of the TC4427A. The Vdd of the TC4427A was powered directly by a 9v DC (unstabilized) wall wart, without extra capacitors, maybe switching the TC on and of 100x per second ... could that be the problem ? So I need a 9V voltage regulator with some capacitors ? Any suggestions ?
