UNR-1.8/2-D5SM データシートの表示（PDF） - DATEL Data Acquisition products
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UNR-1.8/2-D5SM
DATEL Data Acquisition products
UNR-1.8/2-D5SM Datasheet PDF : 7 Pages
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UNR Series
NON-ISOLATED, 3.6-10W, SURFACE-MOUNT DC/DC CONVERTERS
Performance Specifications and Ordering Guide À
Model
UNR-1.8/2-D5SM
VOUT
(Volts)
1.8
IOUT
(Amps)
2
Output
R/N (mVp-p) Á
Typ.
Max.
40
75
Regulation (Max.) VIN Nom.
 Line Load
(Volts)
±0.35% ±0.35%
5
Input
Range
(Volts)
4.5-5.5
UNR-2.5/2-D5SM
2.5
2
30
50
±0.25% ±0.5%
5
4.75-5.5
UNR-3.3/3-D5SM
3.3
3
30
45
±0.4%
±0.5%
5
4.75-5.5
UNR-3.3/3-D12SM Á
3.3
3
100
150 ±0.25% ±0.5%
12 10.4-13.6
À Typical at TA = +25°C under nominal line voltage and full-load conditions, unless otherwise noted. The UNR-1.8/2-D5SM requires an
Á external 15kΩpull-up resistor between VIN and On/Off Control for normal operation. See On/Off Control for details.
Ripple/Noise (R/N) measured over a 20MHz bandwidth. The UNR-3.3/3-D12SM is specified with an external
22µF input capacitor. All other models are specified with no external I/O capacitors. Output noise on the "D12" model can be
reduced significantly with the addition of external output capacitors. See I/O Filtering.
 "D5" models require a minimum 300mA load current to maintain regulation. The "D12" model has no mimimum load requirement.
à Listed specs apply from 300mA to full load for "D5" models and from no load to full load for the "D12" model.
Nominal line voltage, no-load/full-load conditions.
à IIN
(mA)
30/900
40/1180
40/2250
40/930
Efficiency
Min.
Typ.
77%
79%
83%
85%
86%
88%
87%
89%
Package
(Case,
Pinout)
C17, P24
C17, P24
C17, P24
C17, P24
PART NUMBER STRUCTURE
U NR - 2.5 / 2 - D5 SM
Output Configuration:
U = Unipolar
Non-Isolated
Surface-Mount Packaging
Nominal Output Voltage:
1.8, 2.5 or 3.3 Volts
Maximum Output Current
in Amps
À 4.5-5.5Volts for UNR-1.8/2-D5SM
Input Voltage Range:
D5 = 4.75-5.5 Volts (5V nominal) À
D12 = 10.4-13.6 Volts (12V nominal)
TEMPERATURE DERATING
10
UNR-3.3/3-D5SM, UNR-3.3/3-D12SM
9
8
7
6
UNR-2.5/2-D5SM
5
4
3
UNR-1.8/2-D5SM
2
1
0
–40 0 40 45 50 55 60 65 70 75 80 85 90 95 100
Ambient Temperature (˚C)
MECHANICAL SPECIFICATIONS
0.100
(2.54)
0.500
(12.70)
0.300
(7.62)
METAL CASE
Case C17
4
9
8
3
7
2
6
1
5
TOP VIEW
1.00
(25.40)
0.45
(11.43)
0.110
(2.79)
0.800
(20.32)
4 EQ. SP.@
0.200 (5.08)
1.00
(25.40)
0.10
(2.54)
0.110
(2.79)
0.015
(0.38)
0.020
(0.51)
INSULATED BASE
0.055
(1.40)
I/O Connections
Pin Function P24
1
N.C.
2 Logic Ground
3 On/Off Control
4
N.C.
5
+Output
6
N.C.
7 Output Return
8 Intput Return
9
+Input
2
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