LCD Backlight Driver IC LP8550 U7701 U9701 BGA-25 Pin for MacBook

Product Description

The MacBook LP8550 LCD Backlight Driver IC is a replacement LED backlight driver chip used on compatible MacBook logic boards. The IC is identified as LP8550 and may be referenced on board schematics or board-view diagrams as U7701 or U9701.

The LP8550 is a high-efficiency white-LED backlight driver with an integrated boost converter. Texas Instruments specifies the LP8550 with six adjustable LED current outputs, PWM and I²C brightness control, LED fault detection, and an integrated high-voltage boost converter.

This LCD Backlight Driver IC LP8550 is commonly used for display-backlight repair on compatible MacBook Air 11-inch, MacBook Air 13-inch, and MacBook Pro Unibody 13-inch and 15-inch logic boards. Compatible board references include A1370, A1369, A1465, A1466, A1278, and A1286.

Compatible Models

• MacBook Air 11-inch A1370
• MacBook Air 11-inch A1465
• MacBook Air 13-inch A1369
• MacBook Air 13-inch A1466
• MacBook Pro Unibody 13-inch A1278
• MacBook Pro Unibody 15-inch A1286
• Compatible logic-board revisions using LP8550 at U7701/U9701 should be verified before ordering

Compatible Part Numbers

• LP8550
• U7701
• U9701
• LP8550TLE/NOPB
• LP8550TLX/NOPB
• Package: DSBGA / YZR, 25-pin

Product Details

• Product Type: LCD LED Backlight Driver IC
• IC Number: LP8550
• Board Reference: U7701 / U9701
• Package: 25-Pin DSBGA
• Package Code: YZR
• Function: LED LCD Backlight Driver
• Topology: Boost Converter
• LED Outputs: 6
• Input Voltage Range: 2.7V to 22V depending on operating configuration
• Maximum Switching Frequency: 1250 kHz
• LED Current: Up to 50mA per channel
• Control: PWM / I²C
• Manufacturer: Texas Instruments
• Condition: Replacement IC / Board-Level Repair Component

Warranty Details

Warranty: 1 Month Warranty
Warranty Service Type: Replacement Warranty
Warranty Type: Seller Warranty

Important Note:-

• Please verify the exact IC marking, board reference, package, pin count, and logic-board model before ordering.
• LP8550, U7701, and U9701 are used as identification references for this backlight-driver component on compatible MacBook boards.
• This is an IC chip only. It does not include the MacBook logic board, display, display cable, or other components.
• The LP8550 uses a 25-pin DSBGA package, so professional BGA rework equipment and proper soldering technique are required for installation.
• Do not replace the IC based only on the MacBook model. Confirm the original chip marking and board reference before installation.
• A backlight problem can also be caused by a damaged fuse, display connector, backlight circuit, cable, power rail, or other motherboard component. The IC should be diagnosed before replacement.
• Professional motherboard-level repair is strongly recommended.
• Product images are for reference only. Actual IC marking may vary by manufacturing lot.
• Warranty does not cover incorrect installation, overheating, soldering damage, lifted pads, physical damage, or modification.
• For IC components, firmware/programming is not applicable to the LP8550 itself, but correct board-level diagnosis and installation are required.
• If the product is found to be out of stock after ordering, the payment will be refunded.
• Functionality-related problems reported within the warranty period are eligible for replacement according to warranty terms.

FAQs

1. What is the LP8550 IC used for?

The LP8550 is an LED LCD backlight driver IC used to control the LED backlight system. It includes an integrated boost converter and multiple LED current outputs.

2. What are U7701 and U9701?

U7701 and U9701 are board-reference designators used on compatible MacBook logic boards for the LP8550 backlight driver IC.

3. How many pins does the LP8550 have?

The LP8550 is available in a 25-pin DSBGA package.

4. Which MacBook models use this LP8550 backlight driver?

Parts references list the LP8550 for compatible A1370, A1369, A1465, A1466, A1278, and A1286 logic boards, covering selected MacBook Air and MacBook Pro Unibody models.

5. Can I replace the LP8550 without BGA equipment?

The LP8550 is a BGA/DSBGA component, so specialized board-level repair equipment and appropriate BGA rework skills are recommended.