PQB3-D Datasheet, PDF (4/6 Pages) CUI INC – DC-DC CONVERTER

CUI Inc │ SERIES: PQB3-D │ DESCRIPTION: DC-DC CONVERTER
date 03/19/2013 │ page 4 of 6
DERATING CURVES
Wave Soldering Profile
Peak Temp. 260°C Max.
250
Wave Soldering Time
4 Sec. Max.
200
10 Sec. Max.
150
100
50
0
Time (sec.)
EMC RECOMMENDED CIRCUIT
Temperature Derating Curve
100
80
60
Safe operating area
40
20
-40 -20
0
20
40
60
85
Ambient Temperature (°C)
105 120
Figure 1
Vin
GND
FUSE
LDM1
MO V
TVS
+
C0
(a)
LDM2
C1
(b)
Vin
+ Vo
C2
EUT
G ND
C3
-Vo
(0V)
L OAD
Vin (Vdc)
FUSE
MOV
LDM1
TVS
C0
C1
LDM2
C2
C3
Recommended external circuit components
5
12
24
48
choose according to practical input current
--
--
10D560K
10D101K
--
--
56μH
56μH
SMCJ13A
SMCJ28A
SMCJ48A
SMCJ90A
680μF/16V
680μF/25V
120μF/50V
120μF/100V
4.7μF/50V
4.7μF/50V
4.7μF/50V
4.7μF/100V
12μH
12μH
12μH
12μH
4.7μF/50V
4.7μF/50V
4.7μF/50V
4.7μF/100V
1nF/2kV
1nF/2kV
1nF/2kV
1nF/2kV
TEST CONFIGURATION
Oscilloscope
Lin
DC DC ^Current
Cin Probe
Load
External components
Lin
4.7μH
Cin
220μF, ESR < 1.0Ω
at 100 KHz
Note: Input r_Lef_il_nec₍t₄ed_.-₇ri_µpp_Hle₎current_Cis_inm₍e₂a₂su₀re_µd_Fw_,ith_Ea_Sn_Rind_<uc₁to_.r₀L_Ωin a_an_td ₁Ca₀p₀aci_Kto_Hr C_zin₎ to simulate source impedance.
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