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Part Number: UC3856 Other Parts Discussed in Thread: LM5036 , LM5039 Tool/software: Hi，
I use UC3856 as the H-bridge controller, with A out (pin 11) and B out (pin 14) of UC3856 as the 1, 4, and 2,3 drivers of the H-bridge, respectively. Pin 6 and pin…
Part Number: UC3856 Other Parts Discussed in Thread: UC3846
Hello, first of all I'm sorry that I don't speak enough English.
I am driving 2 mosfets with UC3856. I designed a buck converter with 2 mosfets connected to each other.
I get 20kHz output…
Part Number: UC3856 Other Parts Discussed in Thread: UC3846 We are using UC3856 current mode control IC in ac to dc converter.
a) This IC is not able to drive the MOSFET, it can able source 120mA only, whereas datasheet indicates peak 1.5amp. With external…
Part Number: UC3856 Other Parts Discussed in Thread: TINA-TI , , UC3846 Tool/software: TINA-TI or Spice Models Hi Everyone,
I would like to ask about SPICE model of UC3856 IC. Is there any chance to get its model? It is very important for me.
With thanks…
Part Number: UC3856 Other Parts Discussed in Thread: TINA-TI , Tool/software: TINA-TI or Spice Models Hi everyone,
i am looking for a spice model of UC3856 Improved Current Mode PWM Controller. It is an essential part of my device and i have to prepare…
Other Parts Discussed in Thread: UC3856 HI,
I am working on a push pull converter wich should operate from a 48V dc bus.
I intend to use UC3856 currentmode pwm or similar.
There is an absolute need for external syncronisation, which can be accomp…
Part Number: UC2856-Q1 Other Parts Discussed in Thread: UC3856 , UC2856 I would like to be able to disable the PWM comparator without discharging the soft start capacitor. I would like to implement this by pulling the COMP pin low in the same manner as current…
Part Number: UC1846-SP Other Parts Discussed in Thread: UC3856 , UC3846 , Need confirmation that the equations shown for frequency and dead time calculation is correct.
The equations (4) and (5) don't seem to match the values shown in table 1 for figure…
Hello Yaita-san,
When we measure startup current, we supply VIN and VC less than UVLO, connect resistor/capacitor to timing pins, connect other inputs to GND, and float other outputs. In this condition, we measure VIN current. This is how I measured…
