Sunpower USA - RAM 266 X X (Page 4)

MODEL NO.:

RAM-2661~2666

REV.:1.3

UL/cUL/TUV STANDARD

RS020341

4/6

2002/12/24

3. ELECTRONIC CHARACTERISTICS :

3-1. RISE TIME:

20mS

MAX.

3-2. HOLD UP TIME:

20mS MIN. TEST CONDITION AT 230V AC INPUT AND RATED LOAD, AC OFF POINT

AT 0 DEGREE.
3-3. OVER LOAD PROTECTION:
WHEN OUTPUT POWER OVER 105% TO

150%

OF RATED LOAD, THE POWER SUPPLY

WILL SHUTDOWN.
3-4. SHORT CIRCUIT PROTECTION:
WHEN OUTPUT SHORT TO GROUND, THE POWER SUPPLY WILL SHUTDOWN.
3-5. OVER TEMPERATURE PROTECTION: (OPTION)
WHEN THE POWER SUPPLY TEMPERATURE OVER

95

°C

, THE POWER SUPPLY

WILL SHUTDOWN.
3-6 POWER GOOD SIGNAL:
POWER ON WITHIN 100----500ms, high level ttl SIGNAL RELEASE.

3-7 PS-ON SIGNAL:
THE PS-ON TTL SIGNAL SWITCHES ON/OFF THE PS.
THE INPUT IS DUE TO A 30K PULL UP RESISTOR CONNECTED TO +5VSB.
IF THE INPUT IS OPEN (DEFAULT)THE PS IS SWITCHED OFF.

LOGIC STATE

FUNCTION

INPUT VOLTAGE

INPUT CURRENT

PS-ON =HI

P/S IS SWITCHED OFF PS-ON >2V

PS-ON =LOW P/S IS SWITCHED ON PS-ON <0.8V

MAX-3mA@0V

3-8 POWER FAIL ALARM:
IF ONE POWER MODULE FAIL OR TURN OFF, THE BUZZER WILL BEEP, AND TTL
SINGLE WILL ON LOW.

3-9 FAN FAIL ALARM:

ONE POWER MODULE FAN FAIL OR SYSTEMS FAN FAIL , THE BUZZER WILL BEEP

AND TTL SIGNAL WILL ON LOW.