ALD18 ASTEC [Astec America, Inc], ALD18 Datasheet - Page 5

• Manufacturer Part Number: ALD18
• Description: Single Output 16th Brick: 60Watts
• Manufacturer: ASTEC [Astec America, Inc]

Electrical Specifications (continued)
MODEL: ALD12/18/20/25 SERIES
AUGUST 17, 2005 – REVISION C
SAFETY AGENCY / MATERIAL RATING / ISOLATION
Parameter
Safety Approval
Material Flammability Rating
Parameter
Input to Output Capacitance
Input to output Resistance
Input to Output Insulation Type
Measure input reflected-ripple current with a simulated source inductance (Ltest) of 12 uH.
Capacitor Cs offsets possible battery impedance. Measure current as shown above.
Use a 0.1 F @50V X7R ceramic capacitor (connected an inch away from the output
terminals of the UUT) and a 10 F @ 25V tantalum capacitor (2 inches away from the output
terminals of the UUT). Scope measurement should be made using a BNC socket, positioned 3
inches away from output terminals of the converter.
BATTERY
Figure 1. Input Reflected Ripple Current Measurement Setup.
Vo(+)
Vo(-)
Figure 2. Peak to Peak Output Noise Measurement Setup.
Technical Reference Notes
TO OSCILLOSCOPE
ALD12/18/20/25 Series
(Single Output 16
Device
Device
COPPER STRIP
All
All
All
All
All
@ 20 ºC, 100 kHz
ESR < 0.1 OHM
0.1 uF
Cs 220 uF
12 uH
Ltest
Symbol
th
UL/cUL 60950
TUV EN 60950
UL94V-0
Brick)
@ 20 ºC, 100 kHz
ESR < 0.7 OHM
10 uF
33 uF
SCOPE
Min
-
-
-
Vi(+)
Vi(-)
Typical
RESISTIVE
Basic
1000
LOAD
10
Max
-
-
-
SHEET 5 OF 20
Mohms
Unit
pF
-