LCD bias supply IC — what the 2 mA supply current tells you
The ADD8754DACPZ-REEL7 is an LCD bias power management IC from Analog Devices, part of the ADD8754 series. It draws 2 mA from a 3V to 5.5V rail, which means the quiescent loss is low enough that a battery-powered display backlight controller can run continuously without draining the cell overnight — the IC's own consumption sits well below the panel's gate-drive charge budget. The scorch mark on a dead board around this part usually traces to a failed output capacitor or a shorted LCD row driver, not the bias IC itself — the 2 mA supply current means it runs cool unless the load side pulls it into current limit.
Package and board-fit — 24-LFCSP landing pattern
The exposed pad under the centre must be soldered to a thermal land on the PCB — without it the junction-to-board thermal path is open, and the die temperature rises above the 85°C ceiling under load. The 4x4 mm footprint fits into a tight display-driver layout where board real estate is already consumed by the LCD connector and the boost inductor. The package is supplied in Bulk (tube or tray), not tape-and-reel. For a rework bench replacing one on a board, this means the part arrives loose and needs manual placement — no carrier tape to deal with. The -REEL7 suffix on the order code signals the reel quantity variant; the base part ADD8754DACPZ-REEL uses the same die and package, just a different reel count. The two drop into the same footprint without rewiring.
No official successor or second-source cross-reference exists within the ADD8754 family; the -REEL7 and -REEL suffixes differ only in reel quantity, not in silicon or package. If the board was stuffed with ADD8754DACPZ-REEL, the -REEL7 variant is a direct drop-in — same die, same 24-LFCSP footprint, same bias performance.