User's Manual

LITEMAX Electronics Inc. Page 18
Backlight driving Section
[Note1] On-off conditions for supply voltage
[Notw2] Current dissipation
VDD= +12.0V, PWM Duty=100%
[Note3] BL_EN terminal is connected to a 68K ohm pull-down resistor.
[Note4] PWM terminal is not connected pull-down resistor.
[Note5] High: Backlight ON
Low: Backlight OFF
[Note6] f
PWM
= 1/t15
Duty 10%: MIN. Luminance
Duty 100%: MAX. Luminance
Luminance changes in proportion to the duty ratio. (t14≧500 us)
When the frequency slows, the display fineness might decrease.