Over 15 years experience of providing support of MEAN WELL Power Supplies
Overview
LPHC-18-350 is the model of this series: rated current 350mA, rated power 16.8W, typical efficiency 80%.
Features
- Constant current mode power supply
- 180-264VAC input only
- Fully encapsulated with IP67 level (Note.5)
- Protections:Short circuit / Over voltage / Over temperature
- Cooling by free air convection
- Class Ⅱ power unit, no FG
- Pass LPS
- 100% full load burn-in test
- Display devices for decorative & advertising accessories (Note.6)
- High reliability / Low cost
- 2 years warranty
Specifications
OUTPUT
- RATED CURRENT
- 350mA
- CONSTANT CURRENT REGION
- 6~48V
- RATED POWER
- 16.8W
- CURRENT RIPPLENote.2
- ±5%
- VOLTAGE TOLERANCE
- ±5.0%
- CURRENT ACCURACY
- ±8.0%
- SETUP, RISE TIME
- 3600ms, 100ms / 230VAC
- HOLD UP TIME (Typ.)
- 20ms/230VAC at full load
INPUT
- VOLTAGE RANGE
- 180 ~ 264VAC 254 ~ 370VDC
- FREQUENCY RANGE
- 47 ~ 63Hz
- EFFICIENCY(Typ.)
- 80%
- AC CURRENT
- 0.3A/230VAC
- INRUSH CURRENT(Typ.)
- COLD START 50A(twidth=190μs measured at 50% Ipeak) at 230VAC
- MAX. No. of PSUs on 16A CIRCUIT BREAKER
- 13 units (circuit breaker of type B) / 22 units (circuit breaker of type C) at 230VAC
- LEAKAGE CURRENT
- 0.25mA / 240VAC
PROTECTION
- OVER VOLTAGE
- 50.4~ 60V Protection type : Shut off o/p voltage, clamping by zener diode
- OVER TEMPERATURE
- Tj 170℃ typically (U1) Detect on main control IC Protection type : Hiccup mode, recovers automatically after temperature goes down
ENVIRONMENT
- WORKING TEMP.
- -30~ +70℃ (Refer to "Derating Curve")
- WORKING HUMIDITY
- 20 ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -40 ~ +80℃, 10 ~ 95% RH
- TEMP. COEFFICIENT
- ±0.2%/℃ (0 ~ 50℃)
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
SAFETY & EMC (Note 5)
- SAFETY STANDARDS
- BIS IS15885, EAC TP TC 004, IP67,LVD BS EN/EN62368-1 approved; design refer to UL1310 Class 2, CAN/CSA C22.2 No. 223-M91
- WITHSTAND VOLTAGE
- I/P-O/P:3KVAC
- ISOLATION RESISTANCE
- I/P-O/P:>100M Ohms / 500VDC / 25℃/ 70% RH
- EMC EMISSION
- Compliance to BS EN/EN55032 (CISPR32) Class A, BS EN/EN61000-3-2 Class A, BS EN/EN61000-3-3, EAC TP TC 020
- EMC IMMUNITY
- Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, light industry level, EAC TP TC 020
OTHERS
- MTBF
- 7399.9K hrs min. Telcordia SR-332 (Bellcore) ; 1086.9Khrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 140*30*22(L*W*H)
- PACKING
- 0.175Kg; 70pcs/13.3Kgs/0.71CUFT
Test conditions and notes6
- 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
- 2. Current ripple is measured 60%~100% of maximum voltage under rated power delivery.
- 3. Derating may be needed under low input voltage. Please check the static characteristic for more details.
- 4. The power supply is considered as a component that will be operated in combination with final equipment. Since EMC performance will be affected by the complete installation, the final equipment manufacturers must re-qualify EMC Directive on the complete installation again. (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
- 5. Suitable for indoor use or outdoor use without direct sunlight exposure.
- 6. This product is not intended for LED applications in the EU and China.(In the EU NPF/LPF/XLG series are recommended.)
Technical drawings
Downloads
FAQ
Can the LPHC-18-350 be used with a 350mA LED downlight?
Yes, this driver is designed for constant current LED loads at 350mA. It can be used with LED downlights that require 350mA as long as the total forward voltage of the LED load stays within the 6-48V constant current range.
Is the LPHC-18-350 suitable for signage modules or small LED arrays?
It can be suitable for signage modules or small LED arrays when the LEDs are meant to run from a constant current source at 350mA. The connected load must fall within the 6-48V constant current range, and the exact number of LEDs depends on the forward voltage of each LED.
Can I use this driver for a custom LED light assembly instead of a constant voltage power supply?
This model is a constant current driver, not a constant voltage power supply. It is intended for LED assemblies specified for 350mA operation, with total forward voltage inside the 6-48V constant current range.
How do I know if the LPHC-18-350 is compatible with my LED load?
The key checks are output type, current, and voltage range. Your LED load must require constant current at 350mA, and its total forward voltage must fall within 6-48V; the exact number of LEDs depends on each LED forward voltage.
Can the LPHC-18-350 be used in damp or outdoor conditions?
This driver is fully encapsulated to IP67, so it is built for wet and dusty environments, and it may be used outdoors without direct sunlight exposure. Its operating temperature range is -30°C to +70°C with load derating at higher temperatures, which supports demanding ambient conditions when the rest of the system is rated accordingly.
What is the difference between the LPHC-18-350 and LPHC-18-700?
The LPHC-18-350 outputs 350mA with a 6-48V constant current range and 16.8W power, while the LPHC-18-700 outputs 700mA with a 6-25V constant current range and 17.5W power. Both models use 180-264VAC input, carry an IP67 rating, and share the same 140.0 × 30.0 × 22.0 mm housing and 0.175 kg weight.
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