Acer TravelMate 290 TravelMate 290 Service Guide - Page 37

AC Adapter Item Frequency variation range (Hz) Nominal voltages (Vrms) Inrush current Efficiency Output Ratings (CV mode) DC output voltage Noise + Ripple Output current Output Ratings (CC mode) DC output voltage Constant output Dynamic Output Characteristics Start-up time Hold up time Over Voltage Protection (OVP) Short circuit protection Electrostatic discharge (ESD) Dielectric Withstand Voltage Primary to secondary Leakage current Regulatory Requirements Specification 47 - 63 90 - 264 The maximum inrush current will be less than 50A and 100A when the adapter is connected to 115Vac(60Hz) and 240Vac(50Hz) respectively. High efficiency 86% minimum, at 100~240Vac AC input, full load, warm-up condition. Offers constant voltage 19.0V output source with 60W max output power capacity. 380mvp-pmax (20MHz bandwidth) for resistor load 0 A (min.) 3.16A (max.) 18.0 ~ 20.0 3.3A 3 sec. (@115 Vac and 230Vac full load) 5ms min. (@115 Vac input, full load) 27V Output can be shorted without damage, and auto recovery 15kV (at air discharge) 8kV (at contact discharge) 4242 Vdc for 1 second 60uA at 254Vac 1. FCC class B requirements (USA) 2. VDE class B requirements (German) 3. VCCI classII requirements (Japan) Power Management ACPI Mode Mech. Off (G3) Soft Off (G2/S5) Working (G0/S0) Sleeping State (S3) Sleeping State (S4) Power Management All devices in the system are turned off completely. OS initiated shutdown. All devices in the system are turned off completely. Individual devices such as the CPU and hard disk may be power managed in this state. CPU Power Down VGA Power Down PCMCIA Suspend Audio Power Down Hard Disk Power Down Super I/O Power Down Also called Hibernate state. System saves all system states and data onto the disk prior to power off the whole system. Environmental Requirements Item Temperature Specification Chapter 1 29