LCD bias power management — what the 3V to 5.5V supply range means
The ADD8754DACPZ-REEL is an Analog Devices battery power management circuit designed specifically for LCD bias generation. It accepts a supply from 3V to 5.5V, which covers the common 3.3V and 5V rails found in portable displays, tablet panels, and industrial LCD modules. The 2 mA supply current keeps the power budget lean for battery-operated designs — you are not burning a regulator's quiescent just to hold the bias rails. The -40°C to 85°C operating range means it is rated for outdoor kiosk, automotive cabin, or factory-floor HMI use, not just office-temperature gear.
Package and footprint — 24-LFCSP (4x4) with exposed pad
Housed in a 24-VFQFN exposed pad CSP (24-LFCSP-VQ, 4x4 mm), this is a surface-mount part that needs the thermal pad properly soldered to a ground-plane via array. Without that thermal path, the junction temperature climbs faster than the 85°C ambient limit allows. The exposed pad also serves as the primary electrical ground return — a cold joint here can cause erratic bias output. Reflow profile follows standard lead-free (ROHS3 compliant,) parameters for a 4x4 QFN;.
Lifecycle and compliance — active, no LTB clock
The ADD8754DACPZ-REEL carries an Active product status and ROHS3 compliance. The series identifier is ADD8754, which is the base part number for this LCD bias controller family.