MDC_UCE MURATA [Murata Manufacturing Co., Ltd.], MDC_UCE Datasheet

MDC_UCE

Manufacturer Part Number

MDC_UCE

Description

Isolated, High-Density, Eighth-Brick 100W DC/DC Converters

Manufacturer

MURATA [Murata Manufacturing Co., Ltd.]

Datasheet

1.MDC_UCE.pdf (16 pages)

Current page: 1 of 16
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FEATURES

■

RoHS compliant

Industry standard eighth-brick pinout

and package

Outputs from 1.5V to 12V up to 100W

Low proﬁ le 0.4" height with 0.9" x 2.3"

outline dimensions

36 to 75 Vdc input range (48V nominal)

Fully isolated, 2250 Vdc (BASIC)

insulation

Outstanding thermal performance

and derating

Extensive self-protection and short

circuit features with no output reverse

conduction

On/Off control, trim and sense functions

Interleaved synchronous rectiﬁ cation

yields high efﬁ ciency over 90%

Fully protected against temperature and

voltage limits

Designed to meet UL/EN/IEC 60950-1

and CAN/CSA C22.2 No. 60950-1 safety

approvals

www.murata-ps.com

www.murata-ps.com/rohs

CONTROL

SIMPLIFIED BLOCK DIAGRAM

REMOTE

ON/OFF

For full details go to

(2)

–V

(3)

(1)

For efﬁ cient, fully isolated DC power in the smallest space, the UCE

open frame DC/DC converter series ﬁ t in industry-standard “eighth

brick” outline dimensions and mounting pins (on quarter-brick pinout).

Units are offered with ﬁ xed output voltages from

1.5 to 12 Volts and currents up to 40 Amps. UCEs

operate over a wide temperature range (up to +85

degrees Celsius at moderate airﬂ ow) with full rated

power. Interleaved synchronous rectiﬁ er topology

yields excellent efﬁ ciency over 90% and no reverse

output conduction.

environmental specs while delivering excellent

electrical performance in a through-hole package.

Overall noise is typically 50 mV pk-pk (low voltage

models) with fast step response. These converters

offer tight output regulation and high stability even

with no load. The unit is fully protected against

input undervoltage, output overcurrent and short

circuit. An on-board temperature sensor shuts

PRODUCT OVERVIEW

UCE’s achieve these impressive mechanical and

www.murata-ps.com

CONTROLLER

PWM

Typical unit

Figure 1. Simpliﬁ ed Block Diagram

ISOLATION

TRANSFORMER

OPTO

PULSE

CONTROL

SWITCH

REFERENCE &

ERROR AMP

INPUT UNDERVOLTAGE, INPUT

OVERVOLTAGE, AND OUTPUT

OVERVOLTAGE COMPARATORS

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

Typical topology is shown.

down the converter if thermal limits are reached.

“Hiccup” output protection automatically restarts

the converter when the fault is removed.

phased startup and shutdown in multi-voltage ap-

plications. To compensate for longer wiring and to

retain output voltage accuracy at the load, UCEs em-

ploy a Sense input to dynamically correct for ohmic

losses. A trim input may be connected to a user’s

adjustment potentiometer or trim resistors for output

voltage calibration. The UCE will tolerate substantial

capacitive loading for bypass-cap applications.

tions and BASIC I/O insulation provides input/output

isolation to 2250V. Radiation emission testing is

performed to widely-accepted EMC standards.

Isolated, High-Density, Eighth-Brick

A convenient remote On/Off control input enables

UCEs include industry-standard safety certiﬁ ca-

100W DC/DC Converters

UCE Series

MDC_UCE.A18 Page 1 of 16

+SENSE

−SENSE

−V

OUT

(8)

(4)

(7)

(5)

(6)

OUT

TRIM

+1 508 339 3000

Related parts for MDC_UCE

MDC_UCE Summary of contents

Page 1

... BASIC I/O insulation provides input/output isolation to 2250V. Radiation emission testing is performed to widely-accepted EMC standards. INPUT UNDERVOLTAGE, INPUT OVERVOLTAGE, AND OUTPUT OVERVOLTAGE COMPARATORS REFERENCE & ERROR AMP Typical topology is shown. Technical enquiries email: sales@murata-ps.com, tel: MDC_UCE.A18 Page +SENSE (7) +V OUT (8) −V OUT (4) −SENSE ...

Page 2

... L2 = Pin length 0.145 inches (3.68mm)* * Special quantity order is required. , standard , optional, special quantity order Note: Some model combinations may not be available. Contact Murata Power Solutions for availability. Technical enquiries email: sales@murata-ps.com, tel: MDC_UCE.A18 Page Package Typ. Case Pinout 87% C56 P32 88% ...

Page 3

... See ordering guide Isolation Isolation Resistance Capacitance MΩ pF Isolation Safety Rating 100 10 1000 Basic Insulation 100 Technical enquiries email: sales@murata-ps.com, tel: MDC_UCE.A18 Page “N” Model Suffix OFF=open or +2.5V to +15V max. +0.8V max. Current Limit Inception 98% of Vout, after warmup A 24.5 36 ...

Page 4

... Amps, 10 sec. max. Magnetic feedback. See speciﬁ cations. Current-limited. Devices can withstand sustained short circuit without damage. –40 to +125°C. See soldering guidelines. Technical enquiries email: sales@murata-ps.com, tel: MDC_UCE.A18 Page Relative Humidity 16 (non-condensing) to +85°C/85% +1 508 339 3000 ...

Page 5

... FCC part 15, class B, EN55022 Designed to meet UL/cUL 60950-1, CSA-C22.2 No. 60950-1, IEC/EN 60950-1 www.murata-ps.com UCE Series Isolated, High-Density, Eighth-Brick 100W DC/DC Converters input. Use approximately IN Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A18 Page ...

Page 6

... However all units are plug-compatible. INPUT/OUTPUT CONNECTIONS Pin Function P32 1 −Input 2 On/Off Control 3 +Input 4 −Output 5 −Sense 6 Output Trim 7 +Sense 8 +Output Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A18 Page ...

Page 7

... CURRENT PROBE 4 +INPUT L BUS + – BUS IN + – 1 −INPUT = 33μF, ESR < 700mΩ @ 100kHz IN = 220μF, ESR < 100mΩ @ 100kHz BUS = 12μH BUS Figure 2. Measuring Input Ripple Current Technical enquiries email: sales@murata-ps.com, tel: MDC_UCE.A18 Page 508 339 3000 ...

Page 8

... If the output voltage drops too low (approxi- mately 98% of nominal output voltage for most models), the magnetically www.murata-ps.com UCE Series Isolated, High-Density, Eighth-Brick 100W DC/DC Converters Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A18 Page ...

Page 9

... Sense Current 7 ON/OFF TRIM CONTROL Sense Return 8 SENSE − I Return OUT 9 +INPUT -OUTPUT Contact and PCB resistance losses due to IR drops Figure 4. Remote Sense Circuit Conﬁ guration Technical enquiries email: sales@murata-ps.com, tel: MDC_UCE.A18 Page LOAD +1 508 339 3000 ...

Page 10

... ON/OFF CONTROL 1 -INPUT Figure 7. Driving the On/Off Control Pin (suggested circuit) +OUTPUT –INPUT +SENSE R TRIM DOWN ON/OFF TRIM CONTROL –SENSE +INPUT –OUTPUT Figure 8. Trim Connections To Decrease Output Voltages Technical enquiries email: sales@murata-ps.com, tel: MDC_UCE.A18 Page LOAD +1 508 339 3000 ...

Page 11

... Also, capacitors with higher ESR may use a larger capacitance. www.murata-ps.com UCE Series Isolated, High-Density, Eighth-Brick 100W DC/DC Converters Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A18 Page ...

Page 12

... LFM 300 LFM 200 LFM 100 LFM Ambient Temperature (ºC) 300 LFM 200 LFM 100 LFM Natural Convection Ambient Temperature (ºC) Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A18 Page ...

Page 13

... LFM 300 LFM 200 LFM 100 LFM Ambient Temperature (ºC) 400 LFM 300 LFM 200 LFM 100 LFM Ambient Temperature (ºC) Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A18 Page ...

Page 14

... LFM 400 LFM Ambient Temperature (ºC) Natural Convection 100 LFM 200 LFM 300 LFM 400 LFM Ambient Temperature (ºC) Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCE.A18 Page ...

Page 15

... Ambient Temperature (ºC) 400 LFM 300 LFM 200 LFM 100 LFM Ambient Temperature (ºC) 400 LFM 300 LFM 200 LFM 100 LFM Ambient Temperature (ºC) +1 508 339 3000 MDC_UCE.A18 Page ...

Page 16

... Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: MDC_UCE.A18 Page 508 339 3000 ...

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