ML9228 Datasheet, PDF (1/25 Pages) OKI electronic componets – 82-Bit Duplex/Triplex VFD Controller/Driver with Digital Dimming, Keyscan

OKI Semiconductor
ML9228
82-Bit Duplex/Triplex VFD Controller/Driver with Digital Dimming, Keyscan
FEDL9228-01
Issue Date: Oct. 20, 2004
GENERAL DESCRIPTION
The ML9228 is a full CMOS controller/driver for Duplex or Triplex vacuum fluorescent display tube. It conststs
of 82-segment driver outputs and 3-grid pre-driver outputs, so that it can drive directly up to 246-segment VFD.
ML9228 features a digital dimming function, a 5 × 6 keyscan circuit.
FEATURES
• Driver Supply voltage (V_DISP)
: 8.0V to 18.5V
• Logic Supply voltage (V_DD)
: 3.3V±10%, 5.0V±10%
• Duplex/Triplex selectable
• Applicable VFD tube
: 2 Grids × 82 Anodes VFD tube
: 3 Grids × 82 Anodes VFD tube
• 82-segment driver outputs
: I_OH = –6 mA at V_OH = V_DISP–0.8 V (SEG1 to 82)
• 3-grid pre-driver outputs
: I_OL = 10 mA at V_OL = 2 V
• Built-in digital dimming circuit (10-bit resolution)
• Built-in 5 × 6 keyscan circuit
• Built-in oscillation circuit (external R and C)
• Built-in Power-On-Reset circuit
• Package:
128-pin plastic QFP (QFP128-P-1420-0.50-K) (ML9228 GA)
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