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参数资料
| 型号： | DQ62412QKA02NKS |
| 厂商： | SYNQOR INC |
| 元件分类： | 电源模块 |
| 英文描述： | 2-OUTPUT 20 W DC-DC REG PWR SUPPLY MODULE |
| 文件页数： | 9/15页 |
| 文件大小： | 617K |
| 代理商： | DQ62412QKA02NKS |
Product # DQ62412QKA02
Phone 1-888-567-9596
Doc.# 005-2DQ245L Rev. A
06/08/05
Page 3
T
Technical S
echnical Specification
pecification
Input:
Outputs:
Current:
PPackage:
ackage:
35-75V
2.45V & 1.225V
20W
Quarter-brick
Parameter
Min.
Typ.
Max.
Units
Notes & Conditions
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
100
V
Continuous
Operating
80
V
Continuous
Operating Transient Protection
100
V
100ms transient, square wave
Isolation Voltage (input to output)
2000
V
Basic insulation, Pollution Degree 2
Operating Temperature
-40
100
°C
Storage Temperature
-55
125
°C
Voltage at ON/OFF input pin
-2
18
V
INPUT CHARACTERISTICS
Operating Input Voltage Range
35
48
75
V
Input Under-Voltage Lockout
Turn-On Voltage Threshold
32
33
34
V
Turn-Off Voltage Threshold
28.5
29.5
30.5
V
Lockout Voltage Hysteresis
2.5
3.5
4.5
V
Maximum Input Current
0.8
A
100% Load, 35 Vin
No-Load Input Current
40
mA
Disabled Input Current
2
5
mA
Inrush Current Transient Rating
0.01
A2s
Response to Input Transient
150
mV
1000V/ms input transient
Input Reflected Ripple Current
4
mA
RMS thru 10H inductor; Figures 23 & 25
Input Terminal Ripple Current
30
mA
RMS; Figures 23 & 24
Recommended Input Fuse
20
A
Fast blow external fuse recommended
Input Filter Component Values (C\L)
2.2\4.7
F\H
Internal values, see Figure E
Recommended External Input Capacitance
47
F
Typical ESR 0.1-0.2
, see Figure 23
OUTPUT CHARACTERISTICS
Output Voltage Set Point (1.225V)
1.225
V
48Vin, 50% load on each voltage
Output Voltage Set Point (2.45V)
2.45
V
48Vin, 50% load on each voltage
Total Output Voltage Regulation (1.225V)
1.17
1.27
V
Cross regulation, line, load, temp; Figures 7 - 10
Total Output Voltage Regulation (2.45V)
2.35
2.70
V
Cross regulation, line, load, temp; Figures 7 - 10
Output Voltage Ripple and Noise (1.225V & 2.45V)1
20MHz bandwidth; Figures 23 & 26
Peak-to-Peak
50
100
mV
Full Load, see Figures 23 & 26
RMS
10
20
mV
Full Load, see Figures 23 & 26
Operating Output Current Range (1.225V)
0
16
A
Subject to thermal derating; Figures 11 - 18
Operating Output Current Range (2.45V)
0
8
A
Subject to thermal derating; Figures 11 - 18
Output DC Current-Limit Inception (1.225V)
17.6
19.2
20.8
A
Output Voltage 10% Low; Figures 27 - 28
Output DC Current-Limit Inception (2.45V)
8.8
9.6
10.4
A
Output Voltage 10% Low; Figures 27 - 28
Short-Circuit Protection - redundant shutdown (1.225V)
25.6
A
Figures 29-30
Short-Circuit Protection - redundant shutdown (2.45V)
12.8
A
Figures 29-30
Output DC Current-Limit Shutdown (1.225\2.45V)
0.8\1.6
V
Back-Drive Current Limit while Enabled (1.225V only)
0.5
A
Negative current drawn from output
Back-Drive Current Limit while Disabled (1.225V only)
2
A
Negative current drawn from output
Maximum Output Capacitance (1.225V) - 50/50 split
2,000
F
20W load; 5% overshoot at Vout at startup
Maximum Output Capacitance (2.45V) - 50/50 split
2,000
F
20W load; 5% overshoot at Vout at startup
DYNAMIC CHARACTERISTICS
Input Voltage Ripple Rejection (1.225\2.45V)
85\85
dB
120 Hz; Figs. 33-34
Output Voltage during Load Current Transient
For a Step Change in 1.225V Output Current (.1A/s)
50
mV
50% to 75% to 50% Iout max; Figure 21
For a Step Change in 2.45V Output Current (.1A/s)
50
mV
50% to 75% to 50% Iout max; Figure 22
Settling Time
400
s
To within 1% Vout nom
Turn-On Transient
Turn-On Time
10
15
ms
Full load, Vout=90% nom.; Figures 19 & 20
Start-Up Inhibit Time
180
200
240
ms
-40°C to +125°C; Figure F
Output Voltage Overshoot
0
%
20mF load capacitance, Iout = 0A
EFFICIENCY
100% Load (20W)
85
%
48Vin, 50% load each Vout; Figures 1 - 6
50% Load (10W)
82.5
%
48Vin, 25% load each Vout; Figures 1 - 6
TEMPERATURE LIMITS FOR POWER DERATING CURVES
Semiconductor Junction Temperature
125
°C
Package rated to 150°C
Board Temperature
125
°C
UL rated max operating temp 165°C
Transformer Temperature
125
°C
See Figures 11 - 18 for derating curves
ISOLATION CHARACTERISTICS
Isolation Voltage (dielectric strength)
2000
V
Isolation Resistance
30
M
Isolation Capacitance2
3300
pF
DQ62412QKA02 ELECTRICAL CHARACTERISTICS
TA=25°C, airflow rate=300 LFM, Vin=48Vdc unless otherwise noted; full operating temperature range is -40°C to +100°C ambient
temperature with appropriate power derating. Specifications subject to change without notice.
Note 1: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: support@synqor.com).
Note 2: Higher values of isolation capacitance can be added external to the module.
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