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Description

30 W, 36 -75 VDC Vin, Single Output, 1.5 VDC@20 A DC-DC Converter
EHS20-015-0CC

Part Number

EHS20-015-0CC

Price

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Manufacturer

MURATA POWER SOLUTIONS

Lead Time

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Category

Capacitors » DC-DC Converter

Specifications

Manufacturer

Murata Power Solutions

Manufacturers Part #

EHS20-015-0CC

Lead Time

16 Week Lead Time

Series

EHS20

Factory Pack Quantity

Dimensions

2.30 x 0.82 x 0.36"

Efficiency

86%

Input Voltage Nominal

48 VDC

Isolation

1500 VDC

Mechanical Style

Isolated

Mounting

Through Hole

Number of Outputs

Operating Temperature

- 40 to+ 90°C

Output Amps 1

20 A

Output Voltage V1 Nominal

1.5 VDC

Power

30 W

Subcategory

DC-DC Converter

Datasheet

cdc_ehs20-015.pdf

255 KiB

Download

Extracted Text

E Class Converters EHS20 – 1.5V Model Model 1.5V Units Parameter Output Voltage Setpoint 1.48 – 1.52 Vdc Line/Load Regulation Max 0.1% / 0.2% % Vo Output total regulation 1.45 – 1.55 Vdc Output adjust (note 4) 90-110 %Vo,nom Remote-sense Comp. 10% V Output Ripple & Noise (note 2) Max 100 mVp-p Output Current 0-20 A Efficiency (48V, Full load, 25C) Typ 86% % 1,000 – 10,000 External Capacitance μF Transient Response (typ) (note 3) ΔVo 150 mV Ts 400 25% step, 1A/μs μs Over-voltage trip point (latching) 1.80 – 2.03 V Over-current trip point (non-latching) Typ 25 A All specifications, waveforms, charts at Ta=25C, Vin=48V, unless otherwise specified Technical enquiries email: sales@murata-ps.com, tel: +508 339 3000 1 EHS20-6200981505_D01_28/04/08 E Class Converters Murata Power Solutions EHS20 – 1.5V Model Parameter Conditions Min. Typ. Max. Units Input Input Voltage (Vin) 36 48 75 Vdc Reflected Ripple Current See note (1) 25 ‘mA p-p 2 Inrush Transient 0.2 A s 100mS 10% duty Input Voltage Transient 100 V cycle Undervoltage Lockout Turn-on 32 35 Vdc (non-latching)Turn-off 31 34 Vdc Over-voltage lockout (non-latching)Turn-off 77 81 Vdc Isolation Input-Output 1500 Vdc Resistance; input-output 10 Mohm Temperature Operating Ambient -40 90 °C Storage -40 125 °C Protection Over-Temperature (non-latching)Measured on PCB 125 °C Physical Information Dimensions 2.30”L x 0.82” W x 0.36”H (58.4 x 20.8 x 9.3 mm) Calculated at 40C ambient, (Bellcore) 1,000,000 Hrs EHS15/20 Series MTBF Demonstrated at 40C ambient with 90% confidence: 2,800,000 Hrs Complies with IEC/EN/CSA/UL 60950, provides basic insulation, input to output. Safety c-UL-us (US and Canada) recognized, TUV certified (Bauart). Pin Assignments Pin # Description Pin # Description Pin # Description 1 Vin (+) 4 Vout(-) 7 Sense + 2 Enable 5 Sense - 8 Vo (+) 3 Vin(-) 6 Vo adj 2 EHS20-6200981505_D01_28/04/08 E Class Converters Murata Power Solutions EHS20 – 1.5V Model EHS20-015 TEMPERATURE DERATING EHS20-015 TEMPERATURE DERATING Airflow from Vin(-) to Vin(+), Tj=120C Airflow from Input to Output, Tj=120C 25 25 20 20 15 15 100 LFM 200 LFM 100 LFM 200 LFM 300 LFM 400 LFM 300 LFM 400 LFM 10 10 5 5 20 30 40 50 60 70 80 90 20 30 40 50 60 70 80 90 EHS20-015 Enable with Pre-Bias Ambient temp (deg c) 14Nov03 Ambient temp (deg c) 14Nov03 EHS20-015 Efficiency 90.0 85.0 80.0 36V 75.0 48V 75V 70.0 Output Voltage @ 0.5 V/div., 2 ms/div. Prebias voltage =0.9 Vdc. Input Voltage 48 V 65.0 Load current = 0, Load capacitance = 2,200 uF. 4 6 8 1012 1416 1820 Iout [Adc] EHS20-015 Trim-up and Trim-down Resistance Trim Up/Down Formula : 1.5V model 1000 () 100 % 510 5.10 Vnom Rup (1.5 V) Rup 10.2 K 1.225 % % Rdown 100 Where ( Vout Vnom) 100 and, Vout = Target output voltage % Vnom 10 Where 510 ( Vnom Vout) 100 Rdown() % 10.2 K % Vnom % 1 0% 2% 4% 6% 8% 10% Delta (%) 3 EHS20-6200981505_D01_28/04/08 Iout (amps dc) Efficiency [%] Iout (amps dc) Resistance (Kohms) E Class Converters Murata Power Solutions EHS20 – 1.5V Model EHS20-015 Startup Sequence from Enable EHS20-015 Startup Sequence from Vin Top Trace: Vout @ 0.5 V/div. Top Trace: Vout @ 0.5 V/div. Bot. Trace: Vin @ 20V/div. (48Vdc) Bot. Trace: Venable @ 2 V/div. Horiz. @ 50 ms/div. Horiz. @ 5 ms/div. Vin= 36Vdc Load: 20 A, Turn-on delay: 110mS Load: 20 A., 10,000 uF, Turn-on delay: 4.8 ms EHS20-015 Transient Response, 50-25% step, 1A/us EHS20-015 Transient Response, 50-75% step, 1A/μs CH1: Vout AC coupled CH1: Vout AC coupled CH2 : Step up Current (2A/div) CH2 : Step down Current (2A/div) EHS20-015 Input Reflected Ripple Current, Iout = 20 A EHS20-015 Output Ripple Voltage, Iout = 20A Input Current @ 5.0 mA/div., 20 us/div. (14 mApp) Input Voltage: 48 V, Load Current: 20A Note: refer to test circuit schematic 4 EHS20-6200981505_D01_28/04/08 E Class Converters Murata Power Solutions EHS20 – 1.5V Model Notes: 1. Input Reflected Ripple is specified when measured with the filter shown below i i s c L2 Vin 12uF DC-DC Converter 220uF, 33uF, ESR<0.1 Ohm s ESR<0.7 Ohm s @ 100kHz @ 100kHz RTN 2. Output Ripple and noise is specified when measured with a 10uF tantalum and a 1uF ceramic capacitor at the converter output pins 3. Transient response is specified with a 470uF tantalum capacitor at the output of the converter 4. Trim resistor connection: Rtrim-up connected from Vo adj to Vo(+), Rtrim –down connected from Vo adj to Vo(-). EHS20-015 Enable Pin Connection Table ENABLE POWER SUPPLY DISABLE POWER SUPPLY NEGATIVE LOGIC VERSION 0V < Venable < 0.8V 2.5V < Venable < 15V (internal pull-up > 50Kohms @ (external pull-up > 1Kohms) 5V) POSITIVE LOGIC VERSION 2.5V < Venable < 15V 0V < Venable < 0.8V (external pull-up > 1Kohms) (internal pull-up > 50Kohms @ 5V) Note: Power Supply has internal pull-up resistor. Enable pin is in a valid “high” state if left open-circuit. Safety considerations The EHS series of converters are certified to IEC/EN/CSA/UL 60950. If this product is built into information technology equipment, the installation must comply with the above standard. An external input fuse (5A to 30A recommended), must be used to meet the above requirements. The output of the converter [Vo(+)/Vo(-)] is considered to remain within SELV limits when the input to the converter meets SELV or TNV-2 requirements. The converters and materials meet UL 94V-0 flammability ratings. 5 EHS20-6200981505_D01_28/04/08 E Class Converters Murata Power Solutions EHS20 – 1.5V Model Part Number Designations 6 EHS20-6200981505_D01_28/04/08

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Electronics Finder' parent company, GID Industrial, specializes in procuring industrial parts. We know where to find the rare and obsolete equipment that our customers need in order to get back to business. We stand apart from our competition through our commitment to quality, and look forward to the opportunity to show you how.

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What they say about us

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One of our top priorities is maintaining our business with precision, and we are constantly looking for affiliates that can help us achieve our goal. With the aid of GID Industrial, our obsolete product management has never been more efficient. They have been a great resource to our company, and have quickly become a go-to supplier on our list!

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With our strict fundamentals and high expectations, we were surprised when we came across GID Industrial and their competitive pricing. When we approached them with our issue, they were incredibly confident in being able to provide us with a seamless solution at the best price for us. GID Industrial quickly understood our needs and provided us with excellent service, as well as fully tested product to ensure what we received would be the right fit for our company.

Fuji

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Applied Materials

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Over the years, the equipment used in our company becomes discontinued, but they’re still of great use to us and our customers. Once these products are no longer available through the manufacturer, finding a reliable, quick supplier is a necessity, and luckily for us, GID Industrial has provided the most trustworthy, quality solutions to our obsolete component needs.

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When I can't find an obsolete part, I first call GID and they'll come up with my parts every time. Great customer service and follow up as well. Scott emails me from time to time to touch base and see if we're having trouble finding something.....which is often with our 25 yr old equipment.

ConAgra Foods

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