The MEAN WELL LSP-160R-3.3W is a slim wafer-connector AC/DC power supply with active PFC, 3.3 V output and a 32 A / 105.6 W standard rating. Its higher-output rating is 40 A / 132 W under the specified input, temperature and aluminum-plate conditions. The 20 mm-high fanless enclosure includes a DC OK active signal and the R-option two-unit current-sharing function.
Product Datasheet
Download MEAN WELL LSP-160 Datasheet (PDF)
The LSP-160 section is on PDF pages 1, 2, 3, 4, 5, 6, 7. Refer to the complete mechanical drawings and notes when planning installation.
Model and Output Ratings
Full model
LSP-160R-3.3W
Series
LSP-160
Function option
R: DC OK active signal and current sharing for redundancy
Connection suffix
W: wafer-connector version, available by request
DC output voltage
3.3 V
Rated output current
32 A
Rated output power
105.6 W
Higher-output operating current
40 A
Higher-output operating power
132 W
Output voltage adjustment
3.2–3.5 V
Adjustment for higher-output operation
3.2–3.3 V
Maximum ripple and noise
200 mVp-p
Voltage tolerance
±2.0%
Line regulation
±0.5%
Load regulation
±1.0%; ±2.0% at 40 A load
The higher-output 40 A / 132 W rating requires 200–264 VAC input, −20 to +50°C ambient and the specified aluminum-plate installation. Use the corresponding restricted voltage-adjustment range. The input, ambient-temperature and case-temperature limits apply together.
This is a conditional operating rating; select the load from the model-specific voltage, current and power limits. The series designation is not the output-power rating of every voltage version.
Input and Electrical Performance
Input voltage range
100–264 VAC; 141–370 VDC
Input frequency
47–63 Hz
AC surge-input withstand
300 VAC for 5 seconds
Power factor correction
Built-in active PFC
Typical power factor at full load
PF ≥ 0.94 at 230 VAC; PF ≥ 0.98 at 115 VAC
Typical efficiency
87.5%
Typical AC input current
2.2 A at 115 VAC; 1.1 A at 230 VAC
Typical cold-start inrush current
45 A at 115 VAC; 85 A at 230 VAC
Leakage current
Less than 0.75 mA at 240 VAC
Set-up / rise time at full load
2000 / 110 ms at 230 VAC; 3000 / 110 ms at 115 VAC
Typical hold-up time
8 ms at 230 VAC; 8 ms at 115 VAC
Unless otherwise specified, parameters are measured at 230 VAC input, rated load and 25°C ambient. Ripple and noise are measured with 20 MHz bandwidth using a 12-inch twisted pair terminated with parallel 0.1 µF and 47 µF capacitors. Voltage tolerance includes set-up tolerance, line regulation and load regulation.
The 300 VAC / 5-second withstand figure is a transient input condition; the normal AC operating range remains 100–264 VAC.
Protection
Short-circuit protection
Hiccup mode; automatic recovery after the fault is removed
Overload threshold
130–150% of the 160 W output-power reference
Overload behavior
Constant-current limiting; a further load increase causes hiccup protection, with automatic recovery after the fault is removed
Overvoltage threshold
3.8–4.6 V
Overvoltage recovery
Output shutdown; reapply input power to recover
Overtemperature recovery
Output shutdown; reapply input power after the temperature has fallen
DC OK Status
DC OK interface
Optocoupler collector-emitter status output
DC OK connection, CN2
Pin 1: DC OK +V; pin 2: DC COM
DC OK maximum rating
15 VDC / 10 mA, resistive load
DC OK state
Collector-emitter conducting when the PSU is on; open when the PSU is off
Fault indication
Normal: low; short circuit / overload: hiccup; overvoltage / overtemperature / breakdown: high
Use the DC OK optocoupler interface within its 15 VDC / 10 mA rating. The DC OK signal connection is distinct from the main +V / −V power terminals. The LED provides a separate power-on indication.
Two-Unit Current Sharing
Current-sharing availability
Built in for this R-option model
Parallel-unit limit
2 units
Output-voltage matching
Difference must be less than 0.2 V
Current-sharing connection, CN1
Pin 1: CS+; pin 2: CS−
Parallel-operation load limit
The maximum load must not exceed the rated power
Connect CS+ to CS+ and CS− to CS− between the two units, with the main +V outputs and −V outputs connected in parallel as shown in the function diagram. Do not reverse the CS connections. Fine-adjust the output voltage before paralleling; the function manual identifies the adjustment as SVR1 and the mechanical drawing marks it Vo ADJ.
When total output current is below (30% of rated current) × (number of units), current sharing may be unbalanced and one LED may flash without affecting normal operation. Keep the stated parallel-load limit; two connected units do not establish an unrestricted doubled power rating.
Connections and Optional Mating Parts
AC input assignment, TB1
Pin 1: AC/L; pin 3: AC/N; pin 5: FG
DC output assignment
Pins 1 and 2: +V; pins 3 and 4: −V
Signal-board connector references
CN1 / CN2: JST B2B-PH-K-S or equivalent
Signal mating-part references
JST PHR-2 and JST SPH-002T-P0.5S, or equivalent
Input mating housing
JS-1391-05
Input terminal references
JS-1390-05 and JS-2420-TL
DC output mating housing
1EE4LSP-160F
DC output terminal reference
1EE4LSP-160M
Connect protective earth to FG and observe the input and output assignments in the mechanical drawing. CN2 is the DC OK signal port. CN1 carries the current-sharing signals for this R-option unit.
Select mating parts against the connector references above and confirm the required parts with the order. CN1 and CN2 mating cables are available by request; the optional signal-cable order code is 1FF5LSP-160-CS. Confirm the intended CN1 or CN2 connection when ordering.
Cooling and Operating Limits
Cooling and mounting orientation
Fanless free-air convection; horizontal installation for the published curves
Working temperature
−30 to +70°C, subject to the operating and derating limits
Thermal curve with the specified aluminum plate
100% rated current through 50°C; 60% at 70°C
Without aluminum plate, at 230 VAC
65% through 50°C; reduce to 30% at 70°C
Without aluminum plate, at 100 VAC
45% through 50°C; reduce to 30% at 70°C
Input-voltage load curve, 60 Hz
80% at 100 VAC; 100% at 110–264 VAC
Case-temperature limit
Tc up to 90°C at the indicated case measurement point
Operating altitude
Up to 5000 m, with altitude derating
Working humidity
20–90% RH, non-condensing
Storage temperature and humidity
−40 to +85°C; 10–95% RH, non-condensing
Temperature coefficient
±0.03%/°C from 0 to 50°C
Vibration
10–500 Hz, 5 G; 10 minutes per cycle and 60 minutes on each X, Y and Z axis
For the aluminum-plate curves, mount the unit firmly at the center of a smooth, flat 380 × 380 × 3 mm aluminum plate, or an enclosure surface of the same size. The mounting surface may be coated with thermal grease to improve thermal contact. The installation drawing shows M3 × 4 screws.
Higher-output operation starts at −20°C and requires 200–264 VAC and −20 to +50°C ambient. The general working-temperature range does not authorize that higher rating at all temperatures or input voltages. Observe the separately shown no-plate limits when the additional heat-spreading plate is absent.
Above 2000 m, reduce the allowable ambient temperature by 5°C for every additional 1000 m. Apply all relevant input, ambient and Tc restrictions together.
Safety and EMC
Catalogue-listed approvals
UL 62368; TUV BS EN / EN 62368; CCC GB 4943.1; EAC TP TC 004; BSMI CNS 14336-1
Household-appliance safety reference
Design refers to BS EN / EN 60335-1
Withstand voltage
Input–output: 3.75 kVAC; input–FG: 2 kVAC; output–FG: 1.25 kVAC
Isolation resistance
Input–output, input–FG and output–FG: 100 MΩ at 500 VDC, 25°C and 70% RH
EMC emission
BS EN / EN 55032, GB 17625.1 and GB/T 9254.1, Class B; BS EN / EN 55014 and 61000-3-2/-3; EAC TP TC 020; BSMI CNS 13438
EMC immunity
BS EN / EN 61000-4-2/-3/-4/-5/-6/-8/-11; 61000-6-2 (50082-2); 55035; heavy-industry level, criterion A; EAC TP TC 020
The BS EN / EN 60335-1 entry is a design reference. The power supply is a component for integration into final equipment; the completed equipment must be checked against the applicable EMC requirements.
Mechanical Data and Supply Scope
Dimensions, L × W × H
194 × 55 × 20 mm
Case number
279
Mechanical-drawing tolerance
±1 mm
Mounting holes
Four holes, diameter 3.3 mm
Enclosure treatment
Semi-potting for high-moisture environments
Mass, catalogue PACKING reference per unit
356 g
Catalogue packing
0.356 kg; 30 units / 11.68 kg / 0.6 CUFT
Minimum MTBF
699.54K hours, Telcordia TR/SR-332 (Bellcore); 282.71K hours, MIL-HDBK-217F at 25°C
Catalogue warranty
3 years
Use the Tc location and mounting layout in the model-specific T or W mechanical drawing. Semi-potting does not establish an ingress-protection rating. The optional signal cable and requested mating-cable arrangements must be specified separately; the aluminum-plate drawing defines an installation requirement.
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