UWR-5/8-D24A Murata Power Solutions Inc, UWR-5/8-D24A Datasheet

DC/DC Converters & Regulators 40W 24V to 5V 8A

UWR-5/8-D24A

Manufacturer Part Number

UWR-5/8-D24A

Description

DC/DC Converters & Regulators 40W 24V to 5V 8A

Manufacturer

Murata Power Solutions Inc

Series

UWRr

Datasheet

1.UWR-57-D12A-C.pdf (10 pages)

Specifications of UWR-5/8-D24A

Product

Isolated

Output Power

40 W

Input Voltage Range

18 V to 36 V

Input Voltage (nominal)

24 V

Number Of Outputs

Output Voltage (channel 1)

5 V

Output Current (channel 1)

8 A

Isolation Voltage

1.5 KV

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

UWR-5/8-D24A-C

Manufacturer:

Quantity:

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FEATURES

Standard 2" x 2" packages/pinouts

Output voltages/currents:

Choice of 3 input voltage ranges:

Fully synchronous forward topology

Outstanding performance:

On/off control and V

Fully isolated (1500Vdc); I/O protected

Thermal shutdown

Designed to meet UL/EN/IEC60950-1

certiﬁcation; CE marked

10-18V, 18-36V, 36-75V

3.3 Volts @ 8/9 Amps

5 Volts @ 7/8 Amps

±1% setpoint accuracy

Efﬁciencies to 90%

Noise as low as 75mVp-p

Stable no-load operation

www.murata-ps.com/rohs

For full details go to

OUT

CONTROL

ON/OFF

FIGURE 1. SIMPLIFIED SCHEMATIC

trim pins

+INPUT

–INPUT

(4)

(1)

(2)

www.murata-ps.com

PRODUCT OVERVIEW

singles. Housed in standard 2" x 2" metal packages (which have traditionally carried

15-20 Watt devices), these power converters supply up to 9 Amps @ 3.3V or 8 Amps

at 5V. They exemplify DATEL’s relentless drive to bring designers more power/current,

in standard packages/pinouts, without compromising reliability or resorting to thermal

specmanship. Input voltage ranges are 10-18V (“D12” models), 18-36V (“D24” models)

or 36-75V (“D48”) models.

pology, UWR 26-40W singles attain 88-90% efficiencies enabling full-power operation to

ambient temperatures as high as +55°C without supplemental air flow. Assembled using

fully automated, SMT-on-pcb techniques, these DC/DC’s additionally provide low noise

(75mVp-p), high accuracy (±1%), tight line/load regulation (±0.5%), quick step response

(200μsec), and stable no-load operation.

output overvoltage protection, current limiting, short-circuit protection, and thermal

shutdown. Each model has a VOUT trim pin as well as an on/off control function that

may be ordered with either positive or negative polarity. These devices are fully isolated

(1500Vdc) and satisfy UL/EN/IEC60950-1 safety requirements. “D48” models (36-75V

inputs) are CE marked.

UVLO & OVLO

COMPARATORS

The newest products in DATEL’s flagship A-Series are the UWR, 26-40 Watt isolated

Employing an advanced, fully synchronous, high-frequency (300-360kHz) forward to-

All models feature input pi filters, input undervoltage and overvoltage shutdown,

Single Output, High-Density, 3.3V

CONTROLLER

SHUTDOWN

THERMAL

PWM

CONTROL

SWITCH

Technical enquiries email: sales@murata-ps.com, tel:

OUT

ISOLATION

OPTO

and 5 V

UWR 26-40W Series

OUT

, 26-40 Watt, DC/DC Converters

REFERENCE &

ERROR AMP

MDC_UWR26-40W_B05 Page 1 of 10

Typical topology is shown.

+1 508 339 3000

+OUTPUT

TRIM

–OUTPUT

(8)

OUT

(6)

(7)

Related parts for UWR-5/8-D24A

UWR-5/8-D24A Summary of contents

Page 1

... Single Output, High-Density, 3.3V PRODUCT OVERVIEW The newest products in DATEL’s flagship A-Series are the UWR, 26-40 Watt isolated singles. Housed in standard 2" x 2" metal packages (which have traditionally carried 15-20 Watt devices), these power converters supply Amps @ 3. Amps at 5V. They exemplify DATEL’s relentless drive to bring designers more power/current, in standard packages/pinouts, without compromising reliability or resorting to thermal specmanship. Input voltage ranges are 10-18V (“ ...

Page 2

... UWR-3.3/9-D48AN-C 3.3 9 UWR-5/7-D12A UWR-5/8-D24A UWR-5/8-D48AN Typical +25°C under nominal line voltage and full-load conditions, unless noted. Ripple/Noise (R/N) is tested/speciifed over a 20MHz bandwidth. All models are speciﬁed with an external 0.47μF multi-layer ceramic capacitor installed across their output pins. Using a 10μF multi-layer ceramic capacitor instead (e.g. TDK part no. C3225X5R1C106M) will further reduce the R/N to 35mVp-p typical and 75mVp-p maximum. Load regulation is speciﬁ ...

Page 3

... Temperature Coefﬁcient ±0.02% per °C. Single Output, High-Density, 3.3V Dynamic Load Response: (50-100% load step Start-Up Time On/Off Switching Frequency: UWR-3.3/8-D12A UWR-3.3/9-D24A, -D48A UWR-5/7-D12A UWR-5/8-D24A, -D48A MTBF UWR-5/8-D24A Operating Temperature Thermal Shutdown Storage Temperature Flammability Dimensions Case Material Pin Material , I = 1.6mA max ...

Page 4

... All models regulate within spec and are stable under no-load conditions. Filtering and Noise Reduction All UWR 26-40 Watt DC/DC Converters achieve their rated ripple and noise speciﬁcations using the external output capacitor speciﬁed in the Perfor- mance/Functional Speciﬁcations table. In critical applications, input/output noise may be further reduced by installing additional external I/O caps ...

Page 5

... Actual measured times will vary with input source impedance, external input/output capaci- tance, and load. The UWR 26-40 Watt implements a soft start circuit that limits the duty cycle of the PWM controller at power up, thereby limiting the Input Inrush current ...

Page 6

... Trimming Output Voltage UWR 26-40W converters have a trim capability (pin 8) that allows users to adjust the output voltages ±5%. Adjustments to the output voltages can be accomplished via a trim pot (Figure single ﬁxed resistor as shown in Figures 6 and 7. A single ﬁxed resistor can increase or decrease the output voltage depending on its connection. Resistors should be located close to the converter and have TCR's less than 100ppm/° ...

Page 7

... 75V 0.9 1.8 2.7 3.6 4.5 5.4 Output Current (Amps) Single Output, High-Density, 3.3V C Ambient UWR-5/7-D12 Efficiency vs. Load @ 25 ˚ 5.6 6.4 7.2 8 0.7 C Ambient UWR-5/8-D24 Efficiency vs. Load @ 25 ˚ 6.3 7.2 8.1 9 0.8 C Ambient UWR-5/8-D48 Efficiency vs. Load @ 25 ˚ 6.3 7.2 8.1 9 0.8 www ...

Page 8

... OUT OUT UWR-3.3/8-D12A Output Ripple and Noise (PARD 12V, full load, external 0.47μF output capacitor.) IN UWR-3.3/9-D24A Output Ripple and Noise (PARD 24V, full load, external 0.47μF output capacitor.) IN UWR-3.3/9-D48A Output Ripple and Noise (PARD 48V, full load, external 0.47μF output capacitor.) IN Technical enquiries email: sales@murata-ps ...

Page 9

... IN 20V/div V OUT 2V/div 1ms/div Single Output, High-Density, 3.3V UWR-5/8-D12A Output Ripple and Noise (PARD) (V 20mV/div 20MHz BW UWR-5/8-D24A Output Ripple and Noise (PARD) (V 20mV/div 20MHz BW UWR-5/8-D48A Output Ripple and Noise (PARD) (V 20mV/div 20MHz BW www.murata-ps.com UWR 26-40W Series and 26-40 Watt, DC/DC Converters ...

Page 10

... Germany: Japan: 12/04/08 China: © 2008 Murata Power Solutions, Inc. Singapore: www.murata-ps.com UWR 26-40W Series and 26-40 Watt, DC/DC Converters OUT OUT Temperature Derating – Natural Convection OUT UWR-5/8-D24A UWR-5/8-D48A UWR-5/7-D12A Ambient Temperature ( C) Mansﬁeld (MA), Tel: (508) 339-3000, email: sales@murata-ps.com Toronto, Tel: (866) 740-1232, email: toronto@murata-ps.com Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps ...

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