16-channel DC DC controller for backlight arrays
The Texas Instruments TLC69600YBHR is a DC DC controller designed for backlight applications, driving up to 16 channels at 30 mA per channel with a 20 V output ceiling.
Per-channel current and output voltage — sizing the LED string
Each of the 16 outputs is rated for 30 mA, which sets the maximum current per LED string. The 20 V output ceiling supports multiple series-connected LEDs per channel, typical for medium-sized LCD backlight panels. The controller requires external MOSFETs and inductors — the BOM must include these power-stage components, and the PCB layout must handle the switching loop.
24-DSBGA footprint — assembly and layout considerations
The 24-DSBGA package measures 1.58x2.43 mm, a very small footprint that saves board space but demands a controlled solder-paste stencil and X-ray inspection for voiding under the bumps. Surface-mount assembly with a standard reflow profile for lead-free solder applies; the package is RoHS3 compliant.