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It is not possible to normally set the voltage at the output (it constantly jumps). It seems to put 5 v but it starts walking from 4 to 7 v, or completely fails to 1-2 v. At the output current of about 1,5 a the board was heated to 60 degrees.On the chip for some reason the marking is grated, it looks like the laser is very clear edges and strips on the surface of the chip, although some figures are half visible from the grated marking. But to understand what this chip failed.
2019-06-06
The quantity corresponds. I did not check in the work.
2019-07-04| Teil # | Beschreibung | Aktie | Preis |
|---|---|---|---|
| LM5039SQX/NOPB DISTI # V39:1801_07282151 | Voltage Mode PWM Controller 2A 2000kHz 24-Pin WQFN EP T/R | 0 | |
| LM5039SQX/NOPB DISTI # LM5039SQX/NOPB-ND | IC REG CTRLR HALF-BRIDGE 24WQFN RoHS: Compliant Min Qty: 4500 Container: Tape & Reel (TR) | Temporarily Out of Stock |
|
| LM5039SQX/NOPB DISTI # LM5039SQX/NOPB | Voltage Mode PWM Controller 500mA 24-Pin WQFN T/R - Tape and Reel (Alt: LM5039SQX/NOPB) RoHS: Compliant Min Qty: 4500 Container: Reel | Americas - 0 |
|
| LM5039SQ/NOPB DISTI # 595-LM5039SQ/NOPB | Switching Controllers Half-Brdg PWM Cntlr RoHS: Compliant | 990 |
|
| LM5039SQX/NOPB DISTI # 595-LM5039SQX/NOPB | Switching Controllers Half-Brdg PWM Cntlr RoHS: Compliant | 0 |
|
| Bild | Teil # | Beschreibung |
|---|---|---|
|
Mfr.#: LM5039SQ/NOPB OMO.#: OMO-LM5039SQ-NOPB |
Switching Controllers Half-Brdg PWM Cntlr |
|
|
Mfr.#: LM5039SQX/NOPB OMO.#: OMO-LM5039SQX-NOPB |
Switching Controllers Half-Brdg PWM Cntlr |
|
Mfr.#: LM5039SQ OMO.#: OMO-LM5039SQ-1190 |
Neu und Original |
|
|
Mfr.#: LM5039SQX OMO.#: OMO-LM5039SQX-1190 |
Neu und Original |
|
Mfr.#: LM5039SQX/NOPB |
Switching Controllers Half-Brdg PWM Cntl |
|
|
Mfr.#: LM5039SQ/NOPB |
Switching Controllers Half-Brdg PWM Cntl |
