參數(shù)資料
型號(hào): PKD4218SI
廠商: ERICSSON POWER MODULES AB
元件分類(lèi): 電源模塊
英文描述: 1-OUTPUT 25.2 W DC-DC REG PWR SUPPLY MODULE
文件頁(yè)數(shù): 17/20頁(yè)
文件大?。?/td> 338K
代理商: PKD4218SI
6
EN/LZT 146 120 R2B Ericsson Power Modules AB, March 2003
PKD 4218 SIOA
TC = –25…+90°C, VI = 36 ...75V unless otherwise specified.
Output
1) See Operating information.
2) See also Typical Characteristics, Power derating.
Miscellaneous
Characteristics
Conditions
min
typ
max
Unit
η
Efficiency
IO= IOmax, VI = 53 V, TC= +25°C85
86
%
Pd
Power dissipation
IO= IOmax, VI = 53 V, TC= +25°C
3.7
W
fs
Switching frequency
165
170
175
kHz
Characteristics
Conditions
Output 1
Unit
min
typ
max
VOi
Output voltage initial
setting and accuracy
TC = +25°C, IO =IOmax, VI = 53 V
1.49
1.50
1.51
V
Output adjust range 1)
1.35
1.65
VO
Output voltage
tolerance band
Long term drift
included
IO=0.1…1.0
× IOmax
1.45
1.55
V
Idling voltage
IO = 0
1.49
1.51
Line regulation
IO=IOmax
5mV
Load regulation
IO=0.01…1.0
× IOmax, VI = 53 V
5mV
ttr
Load transient recovery time
IO=0.1… 1.0
× IOmax, VI = 53 V
load step = 0.5× IOmax
100
s
Vtr
Load transient voltage
IO=0.1… 1.0
× IOmax, VI = 53 V
load step = 0.5× IOmax
dI / dt = 5A / s
±350
mV
Tcoeff
Temperature coefficient
IO=IOmax, TC <TC max
0
±0.025
±0.25
mV/C
tr
Ramp-up time
IO= 0.1…1.0
× IOmax
VI=53V
0.1 …0.9
× VO
20
ms
ts
Start-up time
From VI connection
to VO = 0.9
× VOi
25
IO
Output current
0
14
A
POmax
Max output power 2)
Calculated value
21
W
Ilim
Current limiting threshold
TC <TC max
16.5
A
Isc
Short circuit current
TC =+25°C
20
A
VOac
Output ripple & noise
IO=IOmax
20 Hz …5 MHz
30
60
mVp-p
SVR
Supply Voltage Rejection (ac)
f = 100 Hz sine wave, 1 Vp-p, VI = 53 V
(SVR = 20 log (1 Vp-p/VOp-p))
70
dB
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