This document defines the customer‑acceptance specifications for the Hitachi INVC818 backlight inverter used with cold‑cathode fluorescent lamps in LCD modules. It outlines the scope, general specifications, electrical characteristics, reliability tests, mechanical structure and design precautions.
Key data include a nominal output power of 2.8 W (high) / 2.4 W (low), input voltage range 7.0‑19.0 V, efficiency ≥65 %, and MTBF of at least 60 000 h. Mechanical details such as connector types (DF13‑6P‑1.25H, IL‑G‑4P‑S3L2‑SA) and maximum thickness of 8 mm are also provided, along with safety guidelines for wiring length and handling.
| Output Power (High) | 2.8 W |
|---|---|
| Output Power (Low) | 2.4 W |
| Cooling Condition | Free air flow |
| Efficiency | ≥65 % |
| Weight | ≤10 g |
| Operating Ambient Temperature | 0 °C ~ 50 °C |
| Storage Ambient Temperature | -20 °C ~ 70 °C |
| Humidity | ≤90 % RH |
| Audible Sound Level | ≤35 dB at 30 cm |
| MTBF | ≥60 000 h |
| Input Voltage Range | 7.0 V ~ 19.0 V |
| Input Current Range | 260 mA ~ 360 mA |
| Lamp Current Range | 4.0 mA ~ 6.0 mA |
| Main Frequency | 25 kHz ~ 55 kHz |
| Dimming Range | 100 % ~ 50 % |
The inverter operates with an input voltage from 7.0 V to 19.0 V (typical 12.0 V).
The minimum mean time between failures is specified as 60 000 hours.