Application-specific PMIC for active shutter 3D glasses
The Texas Instruments TPS65735RSNR is a power management IC designed specifically for active shutter 3D glasses — not a general-purpose buck or LDO. It integrates the shutter-drive waveform generation and power sequencing needed to synchronise with a 3D display's infrared emitter, so the BOM skips a separate MCU or timing generator for that function. Its 39 µA supply current is the headline number for battery life: in a typical 3D glasses frame running a 120 Hz shutter cycle, that quiescent draw lets a 100 mAh Li-ion cell run through several movie-length sessions before recharge. The 2.5 V to 6.4 V input range covers a single-cell Li-ion (3.0-4.2 V) or two alkaline cells in series, giving the industrial designer flexibility on battery chemistry without a separate boost stage.
Package and thermal pad — layout checklist
The TPS65735RSNR comes in a 32-WFQFN with exposed pad, supplier package 32-QFN (4x4 mm). The 0.50 mm pitch QFN demands a solder stencil aperture that deposits enough paste on the centre pad without bridging the perimeter leads — a 0.125 mm stencil thickness with a 70-80 % aperture reduction on the pad is a common starting point.
Sourcing and lifecycle — active production
For a BOM line in a consumer 3D-glasses product still in design or production, this part has no near-term last-time-buy risk.