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Acer Acer –LCD-D240H
DC output loading
capability
Vcc5V/1.8A,
Vcc25V/1.4A
Audio 5V: 1.5A
USB 5V: 1.5A
Rise Time
<50mS
Dynamic load change
Hold-up time
AC input: 100V~240V >10mS
Overshoot
<10%
Turn on delay time
2S
Power management See Table-1
Note3: Paralleled a 0.1uF ceramic Cap. And 47uF aluminum Cap. Between the end of DC loading side,
Measured band-width=20MHz.
Ripple voltage of +25V is less than 1500mv when enter into burst mode.
3.1.3 Protection characteristics
Protection Condition Spec
OPP(Over current protection) nominal AC input
9 W ( min )
SCP(short circuit protection) with auto-recovery function
OVP(Over voltage protection) Auto recovery <output capacitor voltage
OTP(Over temperature protection) NA
Fuse protection NA
Table-1
Status H-sync V-sync Video Power LED
Power On on on active ≤ 70W White
off on blanked < 2W Amber
on off blanked < 2W Amber
Power Saving
off off blanked < 2W Amber
Power Off -- -- -- < 1W Off
3.2 Backlight Power Supply
Panel: AUO-M240HW01-V2
Items Specification
Lamp 4 CCFL
Input Voltage 23.2---28V
Input curren
t
1.2A (Typ.), 1.4A (Max.)
On/Off switch level
3.6V V on 2.0 V (on)
-0.3v ≤ V off ≤ 0.8 V (off)
On/Off switch level
3.6V V on 2.0 V (on)
-0.3v ≤ V off ≤ 0.8 V (off)
Brightness PWM Duty (ACM Off)
35%~100%
Brightness PWM Duty (ACM On)
3%~100%
CCFL operating Voltage 900Vrms (Typ.),
7.5mA (Typ.)
CCFL Current
8.0mA (Max.)