lh2320-2 Power-One, lh2320-2 Datasheet - Page 3

• Manufacturer Part Number: lh2320-2
• Description: H Series Data Sheet 70 Watt Ac-dc Converters
• Manufacturer: Power-One

Part Number Description
Operating input range V
Series ................................................................................... H
Number of outputs ........................................................ 1, 2, 3
Output 1, V
Outputs 2, 3: V
Ambient temperature range T
Auxiliary functions and options:
Functional Description
The input voltage is fed via an input fuse, an input filter, and an
inrush current limiter to the input capacitor. This capacitor
sources a single-transistor forward converter. Each output is
powered by a separate secondary winding of the main
transformer. The resultant voltages are rectified and their
ripples smoothed by a power choke and an output capacitor.
The main control circuit senses the main output voltage V
and generates, with respect to the maximum admissible output
currents, the control signal for the primary switching transistor.
This signal is transferred to the primary side by a coupling
transformer.
The auxiliary output voltages V
auxiliary output's current is sensed using a current
transformer. If one of the outputs is driven into current limit, the
other outputs will reduce their output voltages as well, because
all output currents are controlled by the same main control
circuit.
Example:
BCD20019 Rev AB
1
Option D excludes option V and vice versa
Single-output models (different specs.) .............. 01 – 99
5.1 V .................................................................... 01 – 19
12 V ..................................................................... 20 – 39
15 V ..................................................................... 40 – 59
24 V ..................................................................... 60 – 69
other voltages for multiple-output models ........... 70 – 99
Output voltage control input (single-output models) .... R
Save data signal (D1 – D8, to be specified) ................ D
ACFAIL signal (V2, V3, to be specified) ....................... V
o1 nom
LH1501-2D3: AC-DC converter,operating input voltage range 85 – 255 VAC, providing one output with 15 V /
4.5 A, equipped with an output voltage adjust input (R), and undervoltage monitor D3.
o2 nom
:
85 – 255 VAC, 47 – 63 Hz ................... L
, V
o3 nom
®
i
:
:
customer-specific .................. -0
A
:
o2
other voltages ................ 7, 8
–10 to 50 °C .................. -2
and V
o3
5.1 V ............ 0, 1, 2
12 V .................... 3
15 V ................ 4, 5
24 V .................... 6
48 V .................... 9
are tracking. Each
Page 3 of 21
o1
1
1
70 Watt AC-DC Converters
L H 1 5 01 -2 R D3
H Series Data Sheet
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