The post details the datasheet, specifications, pinout configurations and a few application circuit for the IC IRS2153 which is a half-bridge IC from Texas Instruments. The unique feature of this half bridge driver is that it does not have to depend on external logic sources for the operations, rather allows configuring its own oscillator through a simple RC network. The IC IRS2153(1)D which is fundamentally a half-bridge mosfet driver chip can be actually used for a number of different interesting circuit applications such as boost converters, solar compact inverters, and if two of them are coupled can be even configured as a full bridge mosfet driver circuit. Let's learn more about this interesting device. Main Electrical Specifications Before we discuss the potential applications of this chip, let's learn a few of its main features first:. The chip is designed to withstand and operate with voltages as high as 600V DC (15.4 V Zener clamp on VCC). Consists of an internal built-in oscillator circuit with a 50% fixed duty cycle, while its frequency can be simply determined through two external R/C components (CT, RT programmable oscillator).
Jun 28, 2018 - This is the first time I build the H-Bridge MOSFETs driver circuit. Due to some limitation of desired components. It is all SMD, so I don't really. F-SEM 2014 H Bridge Application Note 5! MOSFET Selection When selecting MOSFETs for an H Bridge application there are several criteria that are important to consider. In the context of a high power inverter one of the most important pieces of information is the Drain-to-Source resistance of the device.
Consists of a built-in high side driver network which allows a fail-proof conduction of the high-side mosfet (upper mosfet) with the required essential boot-strapped gate voltage. Allows an external shut-down feature to be enforced just by adding an additional transistor stage with the IC (Non-latched shutdown on CT pin (1/6th VCC). This feature can be very useful for applications where an automatic current or voltage regulation is crucial. The chip also includes a Micropower start-up feature which assures guaranteed initialization even under relatively minimal voltage and current conditions.
An internal dead time feature ensures perfect separation between the outputs for fail proof operations. All the the pinouts are ESD protected internally for safeguarding the chip against static voltages during packaging and handling. Basis Circuit Configuration of the IC Understanding Pinouts of the Half-Bridge Driver IC IRS2153(1)D The figure above shows the standard circuit configuration of the proposed half bridge IC. The pinout functions may be understood as follows: Pin#1 is the Vcc of the IC and is internally clamped to 15.4V for safeguarding the IC from high supply voltages. The RC network made from RVCC and CVCC has two important functions, the resistor hleps to control the current to the internal zener while the capacitor provides a start up delay to the chip so that the outputs are able to initiate with zero logic until the built-in oscillator has begun oscillating.
The resistor Rt and Ct across pin#2,3,4 is the external RC network which determine the oscillator frequency (duty cycle being fixed to 50% internally). The following formula can be used for determining the oscillator frequency: f = 1/1.453× Rt x Ct Pin#4 is the ground terminal of the IC. Pin#7 and pin#5 are the High and Low side outputs of the IC, meaning pin#7 drives the mosfet which is connected with the supply voltage while pin#5 is responsible for driving the mosfet connected with the ground rail. Pin#8 is terminated with a Cboot capacitor which ensures that the HO and LO never conduct together and also steps-up the required boot-strapped voltage for the HO pinout of the IC. Application Note: The main application of this IC hovers around inverters and converter topologies. One standard inverter application design can be seen in the below given diagram: The simple inverter design shown above using the IC IRS2153 can be used for driving mains CFL lamps from 12V supplies.
Here the Cboot feature is eliminated because the configuration is an ordinary center tap type inverter which does not call for boot-strapped supply due to the absence of high side mosfet network here. The transformer may be wound over any standard 27mm E-core type ferrite assembly, as shown below. For the complete datasheet you may refer to the following post: irf.com/product-info/datasheets/data/irs2153d.pdf. Dear sir, I had like to use two Irs2153DPBF to drive a full bridge (not tried yet) How to connect the two IC in order to prevent the second one to oscillate by itself but instead at the same frequency as the first one (but with a 180° phase shift)? I forecast to use CT pin on the second one as a Trig pin by connecting it through a R divider and R to the LO pin of the first one (and if phasing is not good, to use a General Purpose BJT to invert the signal).
But if you have done it already or know of a solution Thanks JJL. It can be used for the mentioned purpose, because as soon as the the IC would be experiencing the shut down, the output voltage would be experiencing a drop, and this would instantly disable the feedback from the shutdown, allowing the IC to function againthis process would happen extremely rapidly maintaining a constant voltage or current at the output. All feedbacks work in this principle, sometimes narrowing of PWM is used instead of shutdown, which is again quite similar because when PWM is narrowed the output voltage drops.
Dear Raj, an LED testing will not show anything, you should test using a frequency meter, the frequency should be above in kHz over the output pins.may be between 20 kHz to 100kHz depending on the position of the preset 4k7. You can confirm by keeping the IGBT gates disconnected from these points.
But anyway the IGBTs will never load IC outputs since the IGBTs have a high gate resistanceso the IC should not get hot under any circumstances, something could be wrong either with the IC or the connections somewhere. Dear Raj, check and confirm the following basic issues first, check whether the pin7 and pin5 are generating the frequencies correctly using a frequency meter. Confirm the above by varying the 4k7 pot, the frequency should also accordingly change at these points in response to the 4k7 adjustments.
Next connect some kind of load at the output and measure current across each IGBT between their collectors and the positive line.optimize and make it to maximum by gradually adjusting the 4k7 preset. Beware that the circuit is not isolated from AC mains, and can give a lethal shock if not taken appropriate precautions. Hello sir, while browsing the datasheet of ir2153 ic, i noticed its specs says has a 50% duty cycle.
![Driver Driver](/uploads/1/2/5/4/125460928/637051302.png)
Now my question is that, with whatever values of r and c i use, and assuming a certain frequency at the output, would the duty cycle be stable at 50%? I am building an emergency tube light circuit having; 1. A 2 feet tube 20w 2.
![Full Bridge Mosfet Driver Schematic Full Bridge Mosfet Driver Schematic](https://mycontraption.com/wp-content/uploads/2013/06/Super-Simple-MOSFET-H-Bridge.png)
Primary center tapped ferrite transformer 3. Inverter config. Will be a push-pull type, i will be using the 2153 ic. Power source is 12v sla batt. Currently, i am trying this circuit. Hello sir, i am planning to build a switching power supply. There are some few questions: 1.
What is the frequency rate at which smps'es transformers run. At which waveform they are operated.
One thing is that i built my own ferrite transformer for my smps, made it on a ferrite rod from an old radio. I wish to use the above driver shown, but at what frequency i must set the circuit to operate the trafo?? Which diode should i use for trafo. Output rectification? Input to circuit=12v from sla battery, output from circuit 3v 0.7-1amp are my specification. Thanks and please help me.
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