Acer B243HL service manual Output characteristics Items Condition Spec, Protection characteristics

Acer Acer –LCD-B243HL

3.Electrical and Optical Characteristics and Performance

3.1Main Power Supply

3.1.1Input characteristics

	Items			Condition		Spec		Note
	AC Input Voltage range		Universal input full range			90~264Vac
	AC Input Voltage rating		Universal input full range			100~240Vac
	AC input frequency range		90~264Vac			47~63Hz
	AC input frequency rating		100~240Vac			50~60Hz
	AC Input Current		100Vac			1.5A(max)
			240Vac			0.6A(max)
	Inrush Current		115Vac,cold star,25°C			35A (max)		See Note2
			230Vac,cold star,25°C			70A(max)
	AC-DC power Efficiency		DC output full loading			≥80%
	Note2. Before each test,		the buck capacitor need to be discharged.
	Before each test, it must be 10 minutes at least after the latest test.
	Hot star not component be damaged.
3.1.2 Output characteristics
	Items		Condition			Spec		Note
	Ripple and Noise	+25V output			<1500mv		With system See note 3
		+5V output			<300mv
		Audio 5V output			<500mv
		USB +5V output			<150mv
		+25V output			<480mv		With dummy Load
		+5V output			<100mv
		Audio 5V output			<100mv
		USB +5V output			<100mv
		25V loading:0.1A~0.8A			Vcc25V:23.5V~29V		For system active
		5V loading:0.75A~3.2A
					Vcc5V: 4.85V~5.35V
		Audio 5V:		0A~1A
	DC Output Voltage				Audio 5V: 4.5V~5.5V
		USB 5V:		0A~2A
					USB 5V: 4.75V~5.25V
		25v loading:0A			Vcc25V: 23.5V~30V		For power saving or DC
		5V loading: 0.1A			Vcc5V: 4.85V~5.35V		off
	DC output loading				Vcc5V/3.2A,
	capability				Vcc25V/0.8A
					Audio 5V: 1A
					USB 5V: 2A
	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

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