Acer 250 Laptop User Manual


 
Chapter 1 29
DC output voltage 19V
Noise + Ripple 300mVp-pmax (20 MHz bandwidth)
Load 0(min) 3.16A(max)
Output Ratings (CC mode)
DC output voltage 19V +/-1.0V for CV mode
Constant current mode 3.6 +/- 0.3A
Dynamic Output Characteristics
Turn-on delay time 3 sec (@ 115Vac)
Hold up time 5ms (@115Vac, Full load)
Over Voltage Protection (OVP) 24V
Short circuit protection 3.9A max can be protected and output can be shorted without damage
Electrostatic discharge (ESD) 15KV (at air discharge)
8KV (at contact discharge)
Dielectric Withstand Voltage
Primary to secondary 3000Vac
Leakage current 0.25 mA max. (@ 254Vac, 60Hz)
Regulatory Requirements Safety Requirements:
1.The subject product rated 100-120V 60Hz must be listed under UL 1950 and
certified with SCA Standard C22.2 No.950.
2.The subject product rated 200-240V 50Hz must comply with low voltage
directive 73/23EEC.
EMI Requirements:
1.The subject product rated 100-120V 60Hz must meet the EMI requirements
of FCC part 15, Subpart B for Class B Digital Device and get FCC Certification
before marketing into USA and Canada.
2.The subject product rated 200-240V 50Hz must meet the EMC Directive 89/
336/EEC.
3.The subject product rated 100-120V must meet the VCCI-2 EMI
requirements.
Power Management
Power Saving Mode Phenomenon
Standby Mode
Enter Standby Mode when
1.Standby/Hibernation hot-key is pressed
and system is not ready to enter Hibernation
mode.
2.System standby/ Hibernation timer expires
and system is not ready to enter Hibernation
mode.
T The buzzer beeps
T The Sleep indicator lights up
Hibernation Mode
Enter Hibernation Mode (suspend to HDD)
when
1.Hibernation hot-key is pressed and
system is ready to enter Hibernation mode
2.System Hibernation timer expires and
system is ready to enter Hibernation mode.
T All power shuts off
Display Standby Mode
Keyboard, built-in touchpad, and an external
PS/2 pointing device are idle for a specified
period.
T The display shuts off
AC Adapter
Item Specification