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參數(shù)資料
| 型號： | YS05S16-D |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 23/25頁 |
| 文件大?。?/td> | 425K |
| 代理商： | YS05S16-D |
OCT 18, 2006 revised to APR 10, 2007
Page 7 of 25
www.power-one.com
YS05S16 DC-DC Converter Data Sheet
3.0-5.5 VDC Input; 0.7525-3.63 VDC Programmable @ 16 A
The output voltage can also be programmed by
external voltage source. To make trimming less
sensitive, a series external resistor Rext is
recommended between TRIM pin and programming
voltage source. Control Voltage can be calculated by
the formula:
30.1
0.7525)
-
)(V
R
1
(5.1
7
.
0
V
REQ
-
O
EXT
CTRL
+
=
[V]
where,
=
CTRL
V
Control voltage [V]
=
EXT
R
External resistor between TRIM pin and
voltage source; the value can be chosen depending
on the required output voltage range [k].
Control voltages with
=
EXT
R
0 and
=
EXT
R
15K are
shown in Table 2.
Table 2: Control Voltage [VDC]
V0-REG [V]
VCTRL (REXT = 0)
VCTRL(REXT = 15K)
0.7525
0.700
1.0
0.658
0.535
1.2
0.624
0.401
1.5
0.573
0.201
1.8
0.522
-0.000
2.0
0.488
-0.133
2.5
0.403
-0.468
3.3
0.268
-1.002
3.63
0.257
-1.044
Protection Features
Input Undervoltage Lockout
Input undervoltage lockout is standard with this
converter. The converter will shut down when the
input voltage drops below a pre-determined voltage;
it will start automatically when Vin returns to a
specified range.
The input voltage must be typically 2.05 V for the
converter to turn on. Once the converter has been
turned on, it will shut off when the input voltage
drops below typically 1.9 V.
Output Overcurrent Protection (OCP)
The converter is protected against overcurrent and
short circuit conditions. Upon sensing an overcurrent
condition, the converter will enter hiccup mode. Once
over-load or short circuit condition is removed, Vout
will return to nominal value.
Overtemperature Protection (OTP)
The
converter
will
shut
down
under
an
overtemperature condition to protect itself from
overheating caused by operation outside the thermal
derating curves, or operation in abnormal conditions
such as system fan failure. After the converter has
cooled to a safe operating temperature, it will
automatically restart.
Safety Requirements
The
converter
meets
North
American
and
International safety regulatory requirements per
UL60950 and EN60950. The maximum DC voltage
between any two pins is Vin under all operating
conditions. Therefore, the unit has ELV (extra low
voltage) output; it meets SELV requirements under
the condition that all input voltages are ELV.
The converter is not internally fused. To comply with
safety agencies’ requirements, a recognized fuse
with a maximum rating of 20 Amps must be used in
series with the input line.
Characterization
General Information
The converter has been characterized for many
operational aspects, to include thermal derating
(maximum load current as a function of ambient
temperature and airflow) for vertical and horizontal
mountings,
efficiency,
startup
and
shutdown
parameters, output ripple and noise, transient
response to load step-change, overload, and short
circuit.
Table 1: Trim Resistor Value
V0-REG [V]
RTRIM [k]
The Closest
Standard Value [k]
0.7525
open
1.0
80.0
80.6
1.2
41.97
42.2
1.5
23.1
23.2
1.8
15
2.0
11.78
11.8
2.5
6.95
6.98
3.3
3.16
3.63
2.21
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