Silverstone ST85ZF SST-ST85ZF Manual De Usuario
Los códigos de productos
SST-ST85ZF
Description:
Electrical Specification
SilverStone Technology Co., Ltd.
Subject:
SilverStone Technology
Model: ST85ZF
Switching Power Supply
Document No.:
ES-850-ZEUS-01
File Name: ST85ZF.doc Page : 4
Ripple and noise shall be measured using the following methods:
a) Measurements made differentially to eliminate common-mode noise
b) Ground lead length of oscilloscope probe shall be
a) Measurements made differentially to eliminate common-mode noise
b) Ground lead length of oscilloscope probe shall be
≤ 0.25 inch.
c) Measurements made where the cable connectors attach to the load.
d) Outputs bypassed at the point of measurement with a parallel combination of
d) Outputs bypassed at the point of measurement with a parallel combination of
10uF tantalum capacitor in parallel with a 0.1uF ceramic capacitors.
e) Oscilloscope bandwidth of 0 Hz to 20MHz.
f) Measurements measured at locations where remote sense wires are connected.
g) Regulation tolerance shall include temperature change, warm up drift and dynamic load
f) Measurements measured at locations where remote sense wires are connected.
g) Regulation tolerance shall include temperature change, warm up drift and dynamic load
3.3 Dynamic Loading
The output voltages shall remain within the limits specified in Table 7 for the step loading and within the limits
specified in Table 8 for the capacitive loading. The load transient repetition rate shall be tested between 50Hz
and 5kHz at duty cycle ranging from 10%-90%. The load transient repetition rate is only a test specification.
The Δstep load may occur anywhere within the MIN load to the MAX load shown in Table 5.
specified in Table 8 for the capacitive loading. The load transient repetition rate shall be tested between 50Hz
and 5kHz at duty cycle ranging from 10%-90%. The load transient repetition rate is only a test specification.
The Δstep load may occur anywhere within the MIN load to the MAX load shown in Table 5.
Output
ΔStep Load Size
Load Slew Rate
Capacitive Load
+5V
30% of Max. Load
0.5 A/uS
1,000 uF
+3.3V
30% of Max. Load
0.5 A/uS
1,000 uF
+12V Combine
65% of Max. Load
0.5 A/uS
2,200 uF
+5VSB
25% of Max. Load
0.5 A/uS
1 uF
Table 8 – Transient Load requirements
3.4 Capacitive Loading
The power supply shall be stable and meet all requirements, except dynamic loading requirements, with the
following capacitive loading ranges.
following capacitive loading ranges.
Output MIN MAX Units
+5V 10
12,000
uF
+3.3V 10 12,000 uF
+12V 10 11,000 uF
-12V 1 350 uF
+5VSB 1 350 uF
Table 9 – Capacitive Loading Conditions