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).
- 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.
Basic 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 bootstrapped 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
sanil says
sir pleese filament bulb /led light for ferrite transfomer rewinding + 200w inveter circuit denna
Swagatam says
Sanil, sorry I don’t have this circuit with me at this moment…
Mario says
Great information that I find here… but I have a super doubt, it is about the S21531D, such as “15.4 V zener clamp on Vcc”. If the voltage on the pin is higher, do I burn it?
Swagatam says
Thank you, and Glad you found the post useful. Yes the IC has an internal 15V zener clamp at pin#1 Vcc. You can use RVcc upto 100K so that the resistor does not burn at high voltages.
oscarelectronic. says
I want to know if irs21531d is equal to ir21531d and I also want to know if an ic with the same numbers and different sizes or sizes for example an smd is equal to an smps with the same number thanking you very much
Swagatam says
I checked their datasheets…. both the ICs looks identical to me with identical working specifications.
Jonathan Miller says
I am not totally sure how these IC’s work. If I increase the frequency is the pin output currents at 5 and 7 reduced?
Swagatam says
Current is not relevant since mosfets gates are used across the outputs. If you increase the frequency of the IC then the output frequency will also change accordingly
Jonathan Miller says
Hello, I made this circuit and am having problems with the mosfets heating up. I am using irlb8721 and a frequency of around 20khz. I am wondering if maybe my transformer is acting as a short circuit as 20 khz is on the low end for ferrite core any thoughts on this? Also with a dedicated half bridge driver are the 10 ohm resistors necessary between the IC and mosfet gates?
Swagatam says
Hello,
I guess you are referring to the second circuit. It was taken from one of the reputed pdf articles online, and it seems the circuit is a tested design.
Yes frequency does matter, and is directly related to the number of primary turns of the transformer. In that case you can try increasing the frequency by reducing the Rt, Ct values.
Yes a low value gate resistor is recommended for mosfets even if it is driven from a dedicated driver.
Jonathan Miller says
I have 3 turns on the primary and 95 turns on the secondary. It is thick wire which fills a ee42 transformer completely. Do you think this would be ok?
Swagatam says
The number of turns should be exactly as shown in the second diagram, if you are trying to build that circuit. The number of turns cannot be judged, it will need to be either calculated or adjusted through some trial and error.
Jonathan Miller says
Ok, with the original transformer what was the maximum watts?
Thanks,
Jon
Swagatam says
The watt will depend on the wire thickness, and the overall size of the transformer, it will need to be experimented.
Nrupeshkumar Patel says
is Isolated gate drive half bridge inverter possible with this IC? Please give me schematic for inverter.
Swagatam says
No it is not possible, due to the bootstrapping.
Olusegun says
Hello Swag,
Is IRS2153 the same as IR2153?
Swagatam says
Hello Olusegun, as per their datasheets they both look almost same with their specifications
Swagatam says
Please ask this question under induction heater article, I will try to answer!
Rajiv Divakaran says
Sir how many pairs of mosfet (Ex. IRFP460) can anIR2153 drive?
Swagatam says
Any number of MOSFETs can be added in parallel
Klaus says
Thank you very much Sir for this wonderful explanation, the best I have found on the web.
I am trying to understand how an H bridge works. My aim is to build a small sstc. I have tried the ZVS Mazzilli, but almost all the time I end up burning my MOSFETs.
I would like to simulate this circuit in LT Spice but the IRS2153 is not among the models. Do you know a place where I could get it?
Thank you very much, and thank you again for your detailed explanations. It helps people like me who are just beginners.
Swagatam says
Thank You Klaus, I appreciate your thoughts, and glad you liked the post!
I can’t suggest much regarding simulation softwares, since I myself do not rely on these devices…instead prefer testing circuits practically, and sort out the issues practically.
IRS2153 type of designs are proven by the datasheet engineers so no doubt they will work correctly if everything is put up correctly in the assembly.
Edgardo colmenares says
saludos amigo podria utilizar ese circuito para hacer una hornilla de induccion con 110 volt retificados y igbt como seria el circuito
Swagatam says
Yes, the above IC can be used as a induction heater application. One example design can be seen in the following article:
https://www.homemade-circuits.com/solar-induction-heater-circuit/
CESAR GARCIA says
How do you stop the chip in case of overcurrent?
Swagatam says
By adding the following technique to pin3 of the IC
How to Make Adjustable Current Limiter Circuits
Mukesh Israni says
Dear Sir,
I want to use IRS2153D in Electronic Ballast Application (For, T8/36W Fluorescent Tube). Can you furnish me circuit diagram of the same. Supply Voltage :230Vac.
Is there any formula to use various other wattages of the Electronic Ballasts (i.e:T8:58W,80W etc).
Your Prompt response in this regard will be highly appreciated.
Swagatam says
Hello Mukesh, there are a few related examples in the following article which you can refer for detailed info.
https://www.homemade-circuits.com/make-efficient-electronic-40-watt-tube/
sedigh hosein says
hi dear sir i wanted to know if the high side mosfet turn on through pin out 7 and pin out 6 or not it turn on through pin out 7 and L and R my mean the first photo
pardon me for bothering you
Swagatam says
Hi sedigh, yes the high side mosfet turn ON/off via pin7/6. RL refers to the connected load
Madhav says
Dont we need a resistor to go between the gate and source?
Thanks in advance.
Swagatam says
You can add it for improved safety!
Madhav says
Thanks Swagatam.
Can you point a link to the video / article of yours on a DIY transformer?
Swagatam says
Hi Madhav, presently I don’t have a video for DIY transformer.
Victory says
Last comments here were long time ago. I hope I will answered quickly.
Please I need to understand this ic ir2153 properly. I want to use it for a switched mode power supply and I don’t know how to go about the high side and low side mosfets. What type of mosfets can be used here? Between an enhancement mosfet and a depletion mosfet which is the most suitable?
And why do we need to connect the source of the high side mosfet to the drain of the low side mosfet as shown in the normal ic ir2153 circuit.
Swagatam says
What type of circuit are you looking for, half bridge or full bridge?
You will need enhancement type mosfet, and Cboot capacitor can be a 1uF if the frequency is high.
Victory says
I want to build a power supply with a half bridge mosfet connection.
Isn’t there any formula for calculating cboot.
And also, what is the power supply voltage range for the ir2153.
Are there different versions of the ir2153 like ir2153d and ir2153(s)?
Please can you also explain why we need to connect the source of the high side mosfet and the drain of the low side mosfet together. Can’t you separate them in your connection?
Swagatam says
There’s a formula, you can see it here:
https://www.homemade-circuits.com/wp-content/uploads/2019/01/full-bridge-bootstrap-capacitor-formula-1.png
The MOSFETs are connected in the shown manner to enable push pull operation on the load. Load will not work if the MOSFETs are separated. Normally the other end of the load is connected with the ground of the supply, while the MOSFET supply pins are connected with +/- of the source.
I am not sure about the other variants, you can check the datasheets for the info
Swagatam says
..sorry forgot to give the formula, here it is:
https://www.homemade-circuits.com/wp-content/uploads/2019/01/full-bridge-bootstrap-capacitor-formula.png
Victory says
Thanks Swagatam, but isn’t there any way I can post a pic on this page.
I wanted to drop a pic of a particular circuit of the ir2153 which don’t understand very well.
Please, I need your help Mr Swagatam.
Swagatam says
Victory, you can upload the pic on any free image hosting site online and send the link to me here, however there’s only a standard way of configuring the IC which is explained in the above article.
Mooney says
Bro
Can we use pin 8 of ir2153 ic in the same way we use pin 4 of the 555 ic (reset pin)? See, I want it to produce a square wave but not continuous, instead bursts of square waves with another ic telling it to stop, say, every half second.
Swagatam says
Hi Mooney, Pin#8 is not th reset pin of IR2153, it’s the High side floating supply voltage pin.
You can use pin#3 instead, each time you ground this pin the IC output will become void instantly, halting the switching process.
JJ Lhopiteau says
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
Swagatam says
JJ, this IC may be difficult to optimize for your requirement, instead you can use the one explained in the following article
https://www.homemade-circuits.com/three-phase-inverter-circuit/
Mho says
I have an interest in this chip. However, the fact that it has no provision for feedback limits its application. Am I wrong? Maybe in just don’t know how to implement the feedback. Please could you share? Thanks
Swagatam says
pin#3 of the IC is the shut down pinout, if you configure the feedback with this pin then you can enable the IC with an aitomatic shut down or a self-regulating facility.
Mho says
Please I’m not clear yet. Can you be a little more elaborate. What do you mean by ‘self-regulating facility’? In my opinion, Automatic shutdown is not a true feedback mechanism, as it does not keep the output constant with a change in battery voltage, it only shuts it down completely when the voltage goes beyond a threshold. Is there no means of achieving a real feedback that keeps the output voltage constant?
Thanks.
Swagatam says
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 again…this 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…
NEIL FAGEN says
Could you use this device to drive a vibration bowl feeder.
Joko Mulyawan says
Dear Raj. I can't find irs2153 in here, but i have found ir2153. May i subtitude with this? Thanks
Raj Heman says
Dear sir swagatam
Thanks for your quick response.
I checked the ic ir2153 pins with LEDs and they shows flicker in change of frequency with respective 5k rotary pot.
But on connecting to igbts the ic getting hot and ic get dead.
Any solution for its
Thanks 🙂
Swagatam says
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 resistance…so the IC should not get hot under any circumstances, something could be wrong either with the IC or the connections somewhere.
Raj Heman says
Dear swagatham sir
Myself raj doing ms on organic chemistry. But i have lot of interest on electronics and high voltage equipments. Recently I'm working on solid state Tesla coil buy using ur2153 ic and igbt from this schematic
sstc4.png – https://docs.google.com/file/d/0B8xT7Q4vaK-bYVRTTnRseHZqb1U/edit?usp=docslist_api
I did the same circuit as shown in the schematic but its not working
Any troubleshoot tips will be greatly helpful
Thanks again in advance
Swagatam says
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.
Sherwin Baptista says
Hello sir,
while browsing the datasheet of ir2153 ic, i noticed its specs says has a 50% duty cycle.
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. primary center tapped ferrite transformer
3. inverter config. will be a push-pull type, i will be using the 2153 ic.
4. power source is 12v sla batt.
Currently, i am trying this circuit.
Please help.
Swagatam says
Hello Sherwin,
whatever may be the values of R and C, the duty cycle will be 50% only the frequency will change.
you can try the design for the mentioned purpose, if correctly implemented it should work.
Sherwin Baptista says
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.
2. 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.
Swagatam says
Hello Sherwin, any frequency between 20kHz and 100Khz can be suitably used with ferrite transformers.
waveform is not critical, ordinary square/rectangle pulses will do
for the diodes you can BA159
if you are trying to make a simple buck converter you could make use of IC555 easily, special driver ICs as above may not be required.
Sherwin Baptista says
hello dear,
i am to build a switch mode power supply and thanks for getting me to this page in the blog.
My specifications are:
1. Input to smps will be 12v
2. Output will be 3v
Presently, IC IR2153 is new to me and i am still learning about it. And one thing, what is the function of PC817 optoisolator ic, in any smps which role does it play?
Thanks and please help.
Swagatam says
hello sherwin, look for IC 555 buck converter circuit and configure it appropriately as per the mentioned specs.
the opto is for feeding the output voltage to the circuit's voltage sensor stage in an isolated manner in order to monitor this feedback data and cut off in case the output tends to go beyond the set safe limit
waqarshakoor says
Will the frequency depends upon capacitor tank of induction heater if i use ir2153 ic?
Swagatam says
capacitor across the coil will not be required if a IR2153 driver is used
waqarshakoor says
Call you please tell how to connect this IC in Induction heater to prevent mosfets burn
homemadecircuitsandschematics.blogspot.de/2013/10/simple-induction-heater-circuit-hot.html
Please Tell The Value of RT & CT to get 200KHz
Swagatam says
you can try the second circuit configuration shown in the above article.
Ignore the secondary winding and the ferrite core, replace the center tap primary with the coil as explained in the induction heater article.
200khz may be set by adjusting the resistor or the capacitor and verifying with a frequency meter
waqarshakoor says
can i use IR 2151 or any other Self-Oscillating Half-Bridge drive for induction heater?
Swagatam says
yes, it can be tried, but the frequency will need to be adjusted until the optimal resonance frequency is achieved.
ifeanyi anthony nwaobasi says
1. Is it tested by You to give a sine wave?
2. How will d ferrite TRF b connected
Swagatam says
it's not a sine wave, it's a square wave design.
the trafo will need to be soldered on the PCB for the connections.