BD8132FV and BD8139AEFV are high-precision gamma correction voltage generation ICs with built-in DACs and serial communication control. They provide a single-chip solution with a high-precision 10-bit DAC, output amplifier, Vcom amplifier, and auto-read function.
The BD8139AEFV is a gamma‑correction voltage generation IC for TFT‑LCD panels. It integrates a 10‑bit DAC, output amplifiers, Vcom amp, and an auto‑read function, and is controlled via a 2‑wire serial interface (SCL, SDA). The device operates from 2.3 V to 40 V supply ranges and includes thermal shutdown protection.
The document provides electrical characteristics, pin assignments, block diagrams, recommended operating ranges, and ordering information. It also outlines application notes for large‑screen LCD TVs and includes safety and export notices.
| Power supply voltage 1 (DVcc) | 2.3 – 40 V |
|---|---|
| Power supply voltage 2 (Voc) | 6 – 18 V |
| REFIN voltage | 6 – 18 V |
| Amp output current capacity | up to 40 mA |
| Serial clock frequency (BD8132FV) | up to 5 MHz |
| 2‑wire serial frequency (BD8139AEFV) | up to 400 kHz |
| OSC frequency (BD8139AEFV) | up to 400 kHz |
| Thermal shutdown temperature | ≈ 175 °C |
| DAC resolution | 10 bit |
The integrated DAC provides a 10‑bit resolution.
Thermal shutdown occurs at approximately 175 °C to protect the IC.