Power-One LT1702-7 500 watt ac-dc converter Datasheet

T Series
500 Watt AC-DC Converters
Universal input range 70...255V AC with PFC
Single outputs up to 56.5 V DC
4 kV AC I/O electric strength test voltage
LGA
• Rugged electrical and mechanical design, hot
swappable
• Battery chargers for 24 and 48 V lead acid
batteries with remote temperature control
• Operating ambient temperature range
–25...71°C with convection cooling
Selection chart
Output Voltage
Temperature
at 0.5 x Io nom
coefficient
[V DC]
of output [mV/K]
24.25
–5
24.25
–5
25.25...28.25
–3
25.25...28.25
–3
48
–5
48
–5
50.5...56.5
–3
50.5...56.5
–3
54.5
–5
54.5
–5
1 Availability on request.
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Edition 5/07/01
Output current
Io nom
[A]
16
16
14.5
14.5
11
11
10.2
10.2
10
10
Input voltage
Ui
[V AC]
70...140
85...255
70...140
85...255
70...140
85...255
70...140
85...255
70...140
85...255
Type
UT 1201-7
LT 1201-7
UT 1240-7Z
LT 1240-7Z
UT 1702-7
LT 1702-7
UT 1740-7Z
LT 1740-7Z
UT 1701-7
LT 1701-7
Options 1
B1
B1
B1, D
B1, D
B1
B1
B1, D
B1, D
B1
B1
1
Cassette Style
T Series
Input
Input voltage AC
Input frequency
Power factor
Inrush current
active PFC
virtually no inrush current
refer to selection chart
47/63 Hz
>0.96
Output
Efficiency
Ui nom, Io nom
up to 93%
Output voltage setting accuracy Ui nom, 50% Io nom
±0.25 V
Output voltage noise (total)
IEC/EN 61204, including a sinusoidal output ripple at
twice the line frequency
≤1.1 Vpp
Line regulation
Ui min...Ui max, Io nom
typ. 1.6%
Load regulation
Ui nom, 1...100% Io nom
typ. 2.5%
Minimum load
not required
Current limitation
constant power, constant current characteristic
typ. 145% Io nom
Operation in parallel
enabled by droop current share
Hold-up time
Io nom, output voltage decrease to 85% Uo nom
16 ms
Protection
Input fuse
Reverse polarity
Input undervoltage lockout
Input overvoltage lockout
Input transient
Output
Output overvoltage
Overtemperature
built-in, UT/LT
bridge rectifier
10 A slow blow/6.3 A fast
typ. 90% Ui min
typ. 104% Ui max
varistor
no-load, overload and short circuit proof
second control loop
switch-off with auto restart
30/60 V SELV
TC typ. 100°C
Control
Output voltage adjustment
Inhibit
Output undervoltage monitoring
Status monitoring
Status indication
Ucr input for remote control
93...104% Uo nom
output enabled if inhibit left open
threshold level externally adjustable
system good (Sys OK, Uo OK, no int. or external fault)
LEDs: Sys OK, Uo OK and Error
Safety
Approvals
Electric strength test voltage
Degree of protection
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Edition 5/07/01
EN 60950, UL 1950, CSA 22.2 No. 950
class I, I/case
class I, I/O
class I, O/case
2 kV AC
4 kV AC
1 kV AC
IP 30
2
T Series
500 Watt AC-DC Converters
EMC
Electrostatic discharge
Electromagnetic field
Electr. fast transients/bursts
Surge
Conducted disturbances
Electromagnetic emissions
IEC/EN 61000-4-2, level 4, contact/air
IEC/EN 61000-4-3, level 3
IEC/EN 61000-4-4, level 4, capacitive/direct
IEC/EN 61000-4-5, level 3
IEC/EN 61000-4-6, level 3
CISPR 22/EN 55022, conducted
8/15 kV, criterion A
10 V/m, criterion A
2/4 kV, criterion A
2 kV, criterion A
10 Vrms, criterion A
class B
Environmental
Operating ambient temperature
Operating case temperature TC
Storage temperature
Damp heat
Vibration, sinusoidal
Shock
Random vibration
MTBF
Ui nom, Io nom, convection cooled
Ui nom, Io nom
non operational
IEC/EN 60068-2-3, 93%, 40°C
IEC/EN 60068-2-6, 2...28/28...2000 Hz
IEC/EN 60068-2-27, 6 ms
IEC/EN 60068-2-64, 20...500 Hz
MIL-HDBK-217E, GB, 40°C
–25...71°C
–25...95°C
–40...100°C
56 days
1.5 mm/5 gn
100 gn
4.9 gn rms
198'000 h
Options
Remote bus voltage monitoring
Battery cell voltage selector switch
Mounting plate for chassis mounting
D
Z
B1
Pin allocation
Pin
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
Electrical determination
Phase
Neutral
Protective earth
Protective earth
Output voltage positive
Output voltage positive
Hot plug-in contact, positive
Hot plug-in contact, negative
Output voltage negative
Output voltage negative
System good signal input
System good signal output
Inhibit input or remote control input
Power down signal
Power down signal threshold of Uo
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Edition 5/07/01
S10079
Design.
P
N
Vo+
Vo+
HC+
HC–
Vo–
Vo–
Sys In
Sys Out
i/Ucr
D
D set
6
10
14
18
22
26
30
4
8
12
16
20
24
28
32
3
Cassette Style
T Series
Mechanical data
Tolerances ±0.3 mm (0.012") unless otherwise indicated.
European
Projection
S09036
Case temperature measuring point 1
171.93 (DIN 41494) (6.77")
Measuring point 2
of case temperature TC
60 (2.36")
30 (1.18")
Potentiometer
Cell voltage
selector switch
94.8 (3.73")
3U/111 (4.37")
Measuring point 1
of case temperature TC
Input fuse
(Option)
28 TE/142.2 (5.6")
Accessories
Front panels 19" (Schroff)
Mating H15 connectors with screw, solder, fast-on or press-fit terminals
Connector retention facilities and code key system for connector coding
Back planes for system integration
19" racks for system integration
Temperature sensors for battery charging
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Edition 5/07/01
4
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