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Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 10
Technical content
rev. page date page date DESCRIPTION: chassis mount dc-dc converter 1 of 10 PART NUMBER: VHK100W
features
- 66-100W isolated output
- Efficiency to 87%
- RoHS Compliant
- 4:1 input range
- Regulated output
- Continuous short circuit protection
- Metal enclosure with integrated heatsink
- Rugged design
- Over-temperature shutdown
description
The VHK100W series of rugged DC-DC converters are designed for high reliability applications, featuring integral heat sink, over-temperature protection, over-current protection and input transient voltage protection. With an external input fuse, the converter can protect accidental input polarity reversal. The wide 4:1 input range (10-36V or 18- 75V) is very useful to stabilize an input source like batteries in various discharging and charging conditions. Additionally, high efficiency, fast response, tight regulations, remote sense and remote On/Off control make these converters very useful in many industrial and communications applications. MODEL input voltage output output input current efficiency nominal range voltage current 1 no load 2 full load 2 typ. 3 (V dc) (V dc) (V dc) (A) (mA) (mA) (%) VHK100W-Q24-S3R3 24 9.0~36.0 3.3 20 35 3438 80 VHK100W-Q24-S5 24 9.0~36.0 5 20 35 5081 82 VHK100W-Q24-S12 24 9.0~36.0 12 8.3 35 4940 84 VHK100W-Q24-S15 24 9.0~36.0 15 6.7 35 4898 85.5 VHK100W-Q24-S24 24 9.0~36.0 24 4.17 35 4905 85 VHK100W-Q24-S28 24 9.0~36.0 28 3.57 35 4151 86 VHK100W-Q24-S48 24 9.0~36.0 48 2.08 35 4952 84 VHK100W-Q48-S3R3 48 18.0~75.0 3.3 20 50 1741 79 VHK100W-Q48-S5 48 18.0~75.0 5 20 50 2465 84.5 VHK100W-Q48-S12 48 18.0~75.0 12 8.3 50 2427 85.5 VHK100W-Q48-S15 48 18.0~75.0 15 6.7 50 2421 86.5 VHK100W-Q48-S24 48 18.0~75.0 24 4.17 50 2397 87 VHK100W-Q48-S28 48 18.0~75.0 28 3.57 50 4151 86 VHK100W-Q48-S48 48 18.0~75.0 48 2.08 50 2447 85 notes: 1. see output derating curves (page 4) 2. input currents are measured at nominal input voltage 3. efficiency is measured at nominal line, full load *V-Infinity reserves the right to make changes to its products or to discontinue any product or service without notice, and to advise customers to verify the most up-to- date product information before placing orders. V-Infinity assumes no liability or responsibility for customer’s applications u sing V-Infinity products other than repair or replacing (at V-I’s option) V-Infinity products not meeting V-I’s published specifications. Nothing will be covered outside of standard product warranty. INPUT parameter conditions/description min nom max units input voltage range 9 24 36 V dc 18 48 75 V dc under voltage lockout 24 Vin power up 8.8 V dc
24 Vin power down 8 V dc
48 Vin power up 17 V dc
48 Vin power down 16 V dc
remote on/off control 4 section 13 in the application notes input filter PI type notes: 4. add suffix “N” to the model number for negative logic on/off control
DESCRIPTION: chassis mount dc-dc converter 2 of 10 PART NUMBER: VHK100W OUTPUT parameter conditions/description min nom max units voltage accuracy ±1.5 % transient response 25% step load change 500 μ sec external trim adj. range ±10 % ripple & noise (20MHz BW) 3.3V, 5V 40 mV RMS 100 mV p-p 12V& 15V 60 mV RMS 150 mV p-p 24V 100 mV RMS 240 mV p-p 28V 100 mV RMS 280 mV p-p 48V 200 mV RMS 480 mV p-p temperature coefficient ±0.03 %/°C short circuit protection continuous line regulation 5 ±0.2 % load regulation 6 ±1 % over voltage protection trip range, % Vo nom. 115 140 % over current protection % nominal output current 110 140 % GENERAL SPECIFICATIONS parameter conditions/description min nom max units switching frequency 250 KHz operating ambient temp. 7 derated from 50 to 85°C -40 85 °C storage temperature -55 105 °C thermal shutdown case temp. 90 °C case material aluminum ISOLATION SPECIFICATIONS parameter conditions/description min nom max units isolation voltage input/output 1500 V dc input/case 1500 V dc output/case 1500 V dc isolation resistance 100 M Ω notes: 5. measured from high line to low line at full load 6. measured from full load to zero load at nominal input 7. see output derating curves (page 4) *V-Infinity reserves the right to make changes to its products or to discontinue any product or service without notice, and to advise customers to verify the most up-to- date product information before placing orders. V-Infinity assumes no liability or responsibility for customer’s applications u sing V-Infinity products other than repair or replacing (at V-I’s option) V-Infinity products not meeting V-I’s published specifications. Nothing will be covered outside of standard product warranty.
B B B B REV. DESCRIPTION DATE A NEW DRAWING 4/22/2008 B dimension updates 8/27/2008 *DIN rail mounting kit available (part# VHK-DIN) + V out Case Remote Trim - S - V out ±0.3mm UNLESS OTHERWISE + S - V in + V in Terminal # Material TOLERANCE: SPECIFIED B Website: www.cui.com RoHS 20050 SW 112th Ave. Tualatin, OR 97062 Phone: 503-612-2300 800-275-4899 Fax: 503-612-2383 Aluminum/Steel VHKXXW Series VHK COPYRIGHT 2008 BY CUI INC. TITLE: MM [INCHES] SCALE: VHKXXW Series PC FILE NAME: APPROVED BY:DRAWN BY: UNITS:PART NO. ZRJ 1:2 REV: 107.5 4.23286.3 3.398 (TYP) 0.614 101.76 4.006 15.6 38.0 1.496 69 8 7 12 3 B 26.50 18.75 0.382 (TYP) 1.043 (2 PLCS) (2 PLCS) 0.738 2.756 3.58391.0 70.0 9.70 9.5 0.374 (TYP)
surface to allow heat conduction. FIGURE 1. OUTPUT DERATING losses and voltage ripples are accounted for. One possible problem is driving the converter with a linear unregulated power su pply. sure the actual input voltage does not exceed the highest voltage of 36V or 75V. for the input pair and the output pair, so as to minimize noise pickup.
source current is recommended to be: Ipeak = 150% * 100 / (85% * 9) = 19.61A . voltage, as shown in this equation: Ipeak = 150%*Pout/( ηη*Vmin) . for this application. Make sure the fuse voltage rating is higher than the maximum input voltage. conduct a large amount of current that may trip the input fuse. Without the input fuse, the converter may suffer permanent dam ages. When the fuse is open, replace it with one of same type and ratings.
- INPUT REVERSAL PROTECTION
drop which is no more than 1V. With an external input fuse connected, the fuse will open and thus remove power from the conver ter. type and rating. Without the input fuse, the converter may suffer permanent damages in a reversal situation. FIGURE 2. REMOTE SENSE
- OUTPUT OCP AND SHORT-CIRCUIT PROTECTION
the output voltage may not shut down, but the converter may build up heat over time, causing over-temperature shutdown.
- OVER-TEMPERATURE PROTECTION
temperature is reduced enough to a safe operating level, the converter will recover to normal operations automatically. In case the output voltage exceeds the OVP threshold, the converter shuts down.
- OUTPUT PARALLEL CONNECTIONS
having one converter as a backup in case of a failure. Make sure the OR-ing diodes can handle the voltage and full load curren t. FIGURE 6. OUTPUT