LK5660-7R POWER ONE, LK5660-7R Datasheet - Page 4

• Manufacturer Part Number: LK5660-7R
• Description: CONVERTER AC/DC 225VIN 48VOUT
• Manufacturer: POWER ONE
• Series: Kr

Specifications of LK5660-7R

• Voltage - Output: 24V
• Number Of Outputs: 2
• Power (watts): 150W
• Applications: Commercial
• Power Supply Type: Switching (Closed Frame)
• Voltage - Input: 85 ~ 255VAC
• Mounting Type: Chassis Mount
• 1st Output: 24 VDC @ 3A
• 2nd Output: 24 VDC @ 3A
• Size / Dimension: 6.63" L x 4.37" W x 3.15" H (168.5mm x 111mm x 80mm)
• Power (watts) - Rated: 150W
• Operating Temperature: -25°C ~ 71°C
• Efficiency: 83%
• Approvals: CE, cUL, EN, TUV
• Output Voltage (channel 1): 24 V
• Output Current (channel 1): 3 A
• Output Voltage (channel 2): 24 V
• Output Current (channel 2): 3 A
• Isolation Voltage: 2.8 KV
• Output Type: Isolated
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 4th Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: LK 5660-7R; LK 5660-7R; Q1660869

Functional Description
The input voltage is fed via an input fuse, an input filter, a
rectifier, and an inrush current limiter to a boost converter.
This step-up converter provides a sinusoidal input current
(IEC/EN 61000-3-2, class D equipment) and charges the
bulk capacitor C
sources a single-transistor forward converter and provides
the power during the hold-up time.
The main transformer exhibits a separate secondary
winding for each output. Each generated voltage is
rectified and smoothed by the power choke and the output
Fig. 1
Block diagram of single-output models
Fig. 2
Block diagram of double-output models
BCD20001-G Rev AC, 16-Dec-2010
1
2
3
1
2
3
Transient suppressor (VDR)
Inrush current limiter (NTC, only models with T
Bulk capacitor C
Transient suppressor (VDR)
Inrush current limiter (NTC, only models with T
Bulk capacitor C
N~
L~
26
28
30
32
24
L~
N~
30
32
24
28
26
b
b
b
; bulk voltage approx. 370 V
; bulk voltage approx. 370 V
to approx. 370 VDC. This capacitor
1
C
C
Y
Y
1
C
C
Y
Y
2
2
A min
A min
= –25 °C ) or option E
= –25 °C ) or option E
C
i
C
3
Page 4 of 29
i
3
+
+
filter. The control logic senses the main output voltage V
or V
admissible output currents, the control signal for the
switching transistor of the forward converter.
The second output of double output models is tracking to
the main output, but has its own current limiting circuit. If
the main output voltage drops due to current limitation, the
second output voltage will fall as well and vice versa.
A separate auxiliary converter generates the supply
voltages for all primary and secondary control circuits and
options.
o1
150 – 280 Watt AC-DC Converters
and generates, with respect to the maximum
C
C
Y
Y
K Series with PFC Data Sheet
C
Y
P
P
– +
03001c
–
03002c
www.power-one.com
+
16
18
20
22
12
4
6
8
10
14
Vo+
Vo–
R
i
T
S–
D/V
S+
16
18
20
22
12
14
4
6
8
10
R
i
D
T
Vo1+
Vo1–
Vo2–
Vo2+
o