# I ordered LD24AJTA LED Driver, but they sent me LD06AJSA **URL:** \ **Category:** General Electronics\ **Created:** [October 20, 2025, 4:22pm UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048 "2025-10-20T16:22:28Z")\ **Posts on this page:** 17\ **Page:** 1
**Author:** ![giovanniguerra](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/giovanniguerra/32/227267_2.png) [@giovanniguerra](https://forum.arduino.cc/u/giovanniguerra)\ **Post date:** [October 20, 2025, 4:22pm UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/1 "2025-10-20T16:22:28Z")
They look very different ![Led-driver-error](https://europe1.discourse-cdn.com/arduino/original/4X/0/b/a/0ba3d9254d8ce5eb8f282d1b8f14f6ba4c57bbf8.jpeg) On the one I ordered the PWM input is clearly marked. On the other one I cannot see a PWM input, unless G is the common ground and CE is the PWM input. Does anyone know anything about the circuit they sent me in error? ---
**Author:** ![gilshultz](https://avatars.discourse-cdn.com/v4/letter/g/67e7ee/32.png) [@gilshultz](https://forum.arduino.cc/u/gilshultz)\ **Post date:** [October 20, 2025, 5:21pm UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/2 "2025-10-20T17:21:16Z")
The best solution is to contact your vendor and explain the problem and ask for an exchange and that they pay shipping as it was there mistook. I cannot tell as I cannot read the chip labels, but the possibility exists they sent you what you ordered in a different configuration. ---
**Author:** ![markd833](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/markd833/32/1186928_2.png) [@markd833](https://forum.arduino.cc/u/markd833)\ **Post date:** [October 20, 2025, 5:28pm UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/3 "2025-10-20T17:28:27Z")
Does this discussion help: > [@Powering white LEDs from 3.3VDC and dimming with PWM](https://forum.arduino.cc/t/powering-white-leds-from-3-3vdc-and-dimming-with-pwm/655026): > > I'm currently working on a battery-operated project that will run on a 3.3V board. Functions: control a small DC motor (telescope focuser) with a KY-023 joystick (PWM duty cycle) control a LED flashlight with the same KY-023 joystick: dimming through PWM + toggle on/off with the joystick button) switch between red and white LEDs by long pressing the joystick button The prototype runs without problem on a Nano at 5VDC. I plan the real thing to run on batteries, most likely a small LiPo 3.7V c… ---
**Author:** ![Wawa](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/wawa/32/1211303_2.png) [@Wawa](https://forum.arduino.cc/u/Wawa)\ **Post date:** [October 20, 2025, 9:59pm UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/4 "2025-10-20T21:59:42Z")
Just a different layout and chip package. CE seems to be the PWM input. See the **[PT4115 datasheet](https://www.edn.com/wp-content/uploads/2014/07/PT4115E-datasheet.pdf)**. If you connect 12volt or so to Vin/GND then you should measure about 5volt on the unconnected PWM pin. ![61t-Fh2yqUL.SL1024](https://europe1.discourse-cdn.com/arduino/original/4X/3/e/d/3ed926f0263eff826049a5be7f066e8f4e7d1cce.jpeg) Ignore the input voltage range on that image. Chips like that have usually a Vin range of 8-30volt and LEDs in series is much better. Use 12volt for 3 LED strings and 24volt for 6-7 LED strings. Leo.. ---
**Author:** ![giovanniguerra](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/giovanniguerra/32/227267_2.png) [@giovanniguerra](https://forum.arduino.cc/u/giovanniguerra)\ **Post date:** [October 21, 2025, 8:17am UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/5 "2025-10-21T08:17:36Z")
Hello, yes I think they did that, and I found at last an explanation of the delivered component: [LD06AJSA article](https://forum.allaboutcircuits.com/ubs/a-small-cheap-cc-led-driver-module-that-is-worth-a-look-5-5.1794/) And it seems that CE is PWN in. CE = Chip Enable. ---
**Author:** ![giovanniguerra](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/giovanniguerra/32/227267_2.png) [@giovanniguerra](https://forum.arduino.cc/u/giovanniguerra)\ **Post date:** [October 21, 2025, 8:18am UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/6 "2025-10-21T08:18:49Z")
> [@markd833](#): > > Does this discussion help: Yes, thanks. ---
**Author:** ![giovanniguerra](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/giovanniguerra/32/227267_2.png) [@giovanniguerra](https://forum.arduino.cc/u/giovanniguerra)\ **Post date:** [October 21, 2025, 8:21am UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/7 "2025-10-21T08:21:09Z")
> [@Wawa](#): > > LEDs in series So the diagram should show LEDs in series? I’ve only just started looking at this stuff and I thought LEDs in series was the best, not in parallel as shown in the diagram. ---
**Author:** ![giovanniguerra](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/giovanniguerra/32/227267_2.png) [@giovanniguerra](https://forum.arduino.cc/u/giovanniguerra)\ **Post date:** [October 22, 2025, 4:35pm UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/8 "2025-10-22T16:35:50Z")
It looks like the one they sent me (LD_ **06** _AJSA) has a max input voltage of 6V, while the one I ordered has a max of 24V (LD_ **24** _AJTA). ---
**Author:** ![Wawa](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/wawa/32/1211303_2.png) [@Wawa](https://forum.arduino.cc/u/Wawa)\ **Post date:** [October 22, 2025, 8:33pm UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/9 "2025-10-22T20:33:40Z")
I doubt that that is a voltage number. I have used hundreds of PT4115 Led drivers and the like (AL8861 etc.). Led driver chips like that usually have a voltage rating of 30-40volt. I would try connecting 30volt from a current limiting lab supply to the board (no LED attached) and see what bang you got for your buck. Leo.. ---
**Author:** ![giovanniguerra](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/giovanniguerra/32/227267_2.png) [@giovanniguerra](https://forum.arduino.cc/u/giovanniguerra)\ **Post date:** [October 23, 2025, 3:54am UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/10 "2025-10-23T03:54:33Z")
> [@Wawa](#): > > I doubt that that is a voltage number. Well, it is a big coincidence if it is not. I’ve already got my bang, because I imagined they’d send me at least a compatible model, but the 6V LD_ **06** _AJSA) got hot and died at 12V. Really bright LED, then darkness. ---
**Author:** ![giovanniguerra](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/giovanniguerra/32/227267_2.png) [@giovanniguerra](https://forum.arduino.cc/u/giovanniguerra)\ **Post date:** [October 23, 2025, 3:56am UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/11 "2025-10-23T03:56:02Z")
> [@gilshultz](#): > > The best solution is to contact your vendor and explain the problem Did that. No reply. Gave a 1 star review on [Amazon.it](http://Amazon.it). They refused to publish it because the fact that I was sent an incompatible product was not relevant. ---
**Author:** ![Wawa](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/wawa/32/1211303_2.png) [@Wawa](https://forum.arduino.cc/u/Wawa)\ **Post date:** [October 23, 2025, 6:37am UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/12 "2025-10-23T06:37:37Z")
I just noticed the difference between the two boards. The one on the left is a switching (buck) converter, the one on the right is linear (no inductor). The one on the right will get hot with increasing differential voltage, the one on the left will stay cool. Leo.. ---
**Author:** ![giovanniguerra](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/giovanniguerra/32/227267_2.png) [@giovanniguerra](https://forum.arduino.cc/u/giovanniguerra)\ **Post date:** [October 23, 2025, 6:59am UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/13 "2025-10-23T06:59:33Z")
> [@Wawa](#): > > will stay cool That is what I tried to do after amazon refused my 1 star rating. ---
**Author:** ![Wawa](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/wawa/32/1211303_2.png) [@Wawa](https://forum.arduino.cc/u/Wawa)\ **Post date:** [October 23, 2025, 7:04am UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/14 "2025-10-23T07:04:58Z")
Since when does a website publish bad ratings. The point is that those two boards use a completely different technology. This is false advertising. You should get your money back, or get the boards with the inductor. Leo.. ---
**Author:** ![giovanniguerra](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/giovanniguerra/32/227267_2.png) [@giovanniguerra](https://forum.arduino.cc/u/giovanniguerra)\ **Post date:** [October 23, 2025, 7:26am UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/15 "2025-10-23T07:26:53Z")
> [@Wawa](#): > > Since when does a website publish bad ratings. Well, Amazon does publish 1 star reviews of things. I’ve resubmitted the review being more explicit about the fact that it is advertised as working up to 24 volts but blows up at 12V. I’m not holding my breath. ---
**Author:** ![giovanniguerra](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/giovanniguerra/32/227267_2.png) [@giovanniguerra](https://forum.arduino.cc/u/giovanniguerra)\ **Post date:** [October 23, 2025, 10:00am UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/16 "2025-10-23T10:00:08Z")
Arrrfg! Ooops! Embarassing 😳 I’d ordered both types and forgotten I’d done so. All my own mistake. The more powerful ones will arrive in a couple of weeks. Urgh. ---
**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\ **Post date:** [April 21, 2026, 10:00am UTC](https://forum.arduino.cc/t/i-ordered-ld24ajta-led-driver-but-they-sent-me-ld06ajsa/1410048/17 "2026-04-21T10:00:57Z")
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