Datasheet

ManualsBrandsMURATA POWER SOLUTIONS ManualsPSU ComponentsDC/DC converter (print) 5 V 20 A 100 W No. of outputs: 1 x

–V

(3)

(1)

OPTO

ISOLATION

PWM

CONTROLLER

REFERENCE &

ERROR AMP

INPUT UNDERVOLTAGE, INPUT

OVERVOLTAGE, AND OUTPUT

OVERVOLTAGE COMPARATORS

* Can be ordered with positive (standard) or negative (optional) polarity.

REMOTE

ON/OFF

CONTROL*

(2)

+SENSE

(7)

–SENSE

(5)

OUT

(8)

OUT

TRIM

(6)

–V

OUT

(4)

SWITCH

CONTROL

Figure 1. Simpliﬁed Schematic

For applications requiring improved electrical and

thermal performance at reduced cost, consider

Murata Power Solutions’ new UCQ series “quarter

brick” DC-DC power converters. These compact

units measure just 1.45" x 2.3" x 0.4" (36.8 x 60.9

x 10.2 mm) and ﬁt the industry-standard footprint.

Available outputs range between 1.2V @ 30 Amps

to 15V @ 6.7 Amps and accept a wide input range.

The UCQ’s interleaved, synchronous-rectiﬁer

topology offers high efﬁciency (up to 93%), tight

line and load regulation, low noise and fast step

response. A single-board optimized open-frame

design contributes to impressive thermal opera-

tion. UCQ’s will operate up to +70°C and 100 LFM

airﬂow with no derating.

The UCQ’s feature full isolation to 2250Vdc

meeting BASIC insulation requirements of

UL/EN/IEC 60950-1. Input ﬁlters reduce propa-

gated switching noise back to input sources. Also

included is a remote On/Off switch control (with

positive or negative logic), output trim adjustable

over nominal and output sense functions to reduce

power lead losses. Extensive protection items

avoid damage from out of limit voltages, currents

and temperatures. Protection faults automatically

recover using the hiccup technique. Besides safety

testing to 60950-1, certiﬁcations for the UCQ in-

clude application for EMC compliance (to EN55022/

CISPR22 with ﬁlter), qualiﬁcation testing.

FEATURES



Standard quarter-brick package/pinout



Low cost; Low proﬁle, 0.4" (10.2mm)



24V or 48V nominal input



Outputs: 1.2V to 15V



Interleaved synchronous-rectiﬁer topology

• Ultra high efﬁciency

• No output reverse conduction



Outstanding thermal performance



On/off control, trim & sense functions



Fully isolated, 2250Vdc (BASIC)



Output overvoltage protection



Fully I/O protected; Thermal shutdown



Designed to meet UL/EN/IEC60950-1

safety approvals

PRODUCT OVERVIEW

Typical topology may vary between units.

Typical units

www.murata-ps.com

www.murata-ps.com/support

For full details go to

www.murata-ps.com/rohs

Single Output UCQ Models

Low-Proﬁle, Quarter Brick, 8.3-40 Amp

Isolated DC-DC Converters

MDC_UCQ Models.E02 Page 1 of 24

Summary of content (24 pages)

PAGE 1
Single Output UCQ Models www.murata-ps.com Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters Typical units FEATURES PRODUCT OVERVIEW Standard quarter-brick package/pinout For applications requiring improved electrical and thermal performance at reduced cost, consider Murata Power Solutions’ new UCQ series “quarter brick” DC-DC power converters. These compact units measure just 1.45" x 2.3" x 0.4" (36.8 x 60.9 x 10.2 mm) and fit the industry-standard footprint.
PAGE 2
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE ➀ Output To Be Discontinued* To Be Discontinued* Root Models ➀ UCQ-1.2/40-D24P-C UCQ-1.2/30-D48N-C UCQ-1.5/25-D48N-C UCQ-1.5/40-D48N-C UCQ-1.8/30-D48N-C UCQ-1.8/40-D48N-C UCQ-2.5/40-D24P-C UCQ-2.5/30-D48N-C UCQ-3.3/35-D24P-C UCQ-3.3/20-D48N-C UCQ-3.3/30-D48N-C UCQ-3.3/40-D48N-C UCQ-5/20-D24P-C UCQ-5/20-D48N-C UCQ-5/25-D48N-C UCQ-12/8.3-D48N-C UCQ-15/6.
PAGE 3
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters FUNCTIONAL SPECIFICATIONS UCQ-1.2/30-D48 UCQ-1.5/25-D48 UCQ-1.5/40-D48 UCQ-1.8/30-D48 UCQ-1.8/40-D48 Input Input voltage range See ordering guide. Start-up threshold, Volts 34 34 34 34 34 Undervoltage shutdown, V 33 32 32.5 32.5 32 1.74 2.
PAGE 4
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters FUNCTIONAL SPECIFICATIONS UCQ-2.5/40-D24 UCQ-2.5/30-D48 UCQ-3.3/35-D24 UCQ-3.3/20-D48 UCQ-3.3/30-D48 Input Input voltage range Start-up threshold, Volts Undervoltage shutdown, V See ordering guide. 16.8 34 17 35 35 15 32 15 34 34 2.04 3.02 Pi Pi Overvoltage shutdown none Reflected (back) ripple current, mA pk-pk 10-30, model dependent Input Current Full load conditions See ordering guide.
PAGE 5
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters FUNCTIONAL SPECIFICATIONS UCQ-3.3/40-D48 UCQ-5/20-D24 UCQ-5/20-D48 33 17 35 31.5 16 34 UCQ-5/25-D48 UCQ-12/8.3-D48 UCQ-15/6.7-D48N-C 35 35 34 34 34 31.5 Input Input voltage range Start-up threshold, Volts Undervoltage shutdown, V See ordering guide Overvoltage shutdown none Reflected (back) ripple current, mA pk-pk 10-30, model dependent. 60 max.
PAGE 6
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters FUNCTIONAL SPECIFICATIONS UCQ-1.2/30-D48 UCQ-1.5/25-D48 UCQ-1.5/40-D48 UCQ-1.8/30-D48 UCQ-1.8/40-D48 Isolation Voltage Input to Output, Volts min. 2250 Input to baseplate, Volts min. 1500 Baseplate to output, Volts min.
PAGE 7
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters FUNCTIONAL SPECIFICATIONS UCQ-2.5/40-D24 UCQ-2.5/30-D48 UCQ-3.3/35-D24 UCQ-3.3/20-D48 UCQ-3.3/30-D48 Isolation Voltage Input to Output, Volts min. 2250 Input to baseplate, Volts min. 1500 Baseplate to output, Volts min.
PAGE 8
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters FUNCTIONAL SPECIFICATIONS UCQ-3.3/40-D48 UCQ-5/20-D24 UCQ-5/20-D48 UCQ-5/25-D48 UCQ-12/8.3-D48 UCQ-15/6.7-D48N-C 10 9 Isolation Voltage Input to Output, Volts min. 2250 Input to baseplate, Volts min. 1500 Baseplate to output, Volts min.
PAGE 9
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters FUNCTIONAL SPECIFICATIONS UCQ-1.2/30-D48 UCQ-1.5/25-D48 UCQ-1.5/40-D48 UCQ-1.8/30-D48 UCQ-1.8/40-D48 Physical Outline dimensions See mechanical specs. Pin material Copper alloy Pin diameter 0.040/0.062 inches (1.016/1.575 mm) Pin finish Nickel underplate with gold overplate Weight, ounces 0.9 1.06 0.9 0.9 1.
PAGE 10
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters Specification Notes (1) All models are tested and specified with external 1||10 µF ceramic/tantalum output capacitors no external input capacitor. All capacitors are low ESR types. These capacitors are necessary to accommodate our test equipment and may not be required to achieve specified performance in your applications. All models are stable and regulate within spec under no-load conditions.
PAGE 11
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters TYPICAL PERFORMANCE CURVES UCQ-1.2/30-D48 Maximum Current Temperature Derating No baseplate, VIN = 48V (at sea level), longitudinal airflow UCQ-1.
PAGE 12
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters TYPICAL PERFORMANCE CURVES 20 85 18 Efficiency (%) VIN = 75V VIN = 48V 16 75 14 VIN = 36V 70 12 65 10 60 8 55 6 50 40 4 8 12 16 20 24 28 32 40 35 30 400 LFM 25 300 LFM 200 LFM 20 100 LFM 15 Natural Convection 10 4 Power Dissipation VIN = 48V 45 45 Power Dissipation (watts) 90 80 UCQ-1.
PAGE 13
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters TYPICAL PERFORMANCE CURVES UCQ-3.3/20-D48 Efficiency vs Line Voltage and Load Current @25°C 95 20 15 12 VIN = 36V 80 9 VIN = 48V 75 6 VIN = 75V 70 5 8 11 14 17 100 LFM 16 200 LFM 14 300 LFM 400 LFM 12 3 Power Dissipation VIN = 48V 2 18 Output Current (Amps) 85 Power Dissipation (watts) Efficiency (%) 90 65 UCQ-3.
PAGE 14
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters TYPICAL PERFORMANCE CURVES UCQ-3.3/35-D24 Efficiency vs Line Voltage and Load Current @25˚ C 92 90 88 Efficiency (%) 86 84 VIN = 36V 82 80 VIN = 24V 78 VIN = 18V 76 74 72 70 3 5 7 9 11 15 17 19 21 23 25 27 29 31 33 35 Load Current (Amps) UCQ-3.
PAGE 15
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters TYPICAL PERFORMANCE CURVES UCQ-3.3/40-D48 Efficiency and Power Dissipation @25˚ C 95 22 90 20 85 Efficiency (%) 80 VIN = 48V 16 75 14 VIN = 36V 70 12 65 10 60 8 55 6 50 4 Power Dissipation VIN = 48V 45 40 4 8 12 16 20 24 28 32 Power Dissipation (watts) 18 VIN = 75V 2 36 40 0 Load Current (Amps) UCQ-3.
PAGE 16
Single Output UCQ Models Low-Profile, Quarter Brick, 8.
PAGE 17
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters TYPICAL PERFORMANCE CURVES UCQ-5/25-D48 Efficiency and Power Dissipation @25˚ C 95 UCQ-5/25-D48 Maximum Current Temperature Derating at Sea Level (VIN = 48V, no baseplate, airflow is from Vin to Vout) 18 30 90 16 75 12 10 VIN = 36V 70 8 65 6 60 4 9 11 13 15 17 19 Load Current (Amps) 21 23 18 90 16 Efficiency (%) 85 14 VIN = 75V 12 VIN = 48V 70 10 8 VIN = 36V 65 6 60 50 0.8 1.6 2.4 3.
PAGE 18
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters TYPICAL PERFORMANCE CURVES UCQ-15/6.7-D48 Efficiency and Power Dissipation @Ta = 25˚ C 100 14 13 12 85 11 10 VIN = 75V 80 9 VIN = 48V 75 70 8 7 VIN = 36V 6 65 5 60 4 Power Dissipation VIN = 48V 55 6.5 Output Current (Amps) 90 Loss (watts) Efficiency (%) 95 50 1.2 UCQ-15/6.7-D48 Maximum Current Temperature Derating at Sea Level (VIN = 48V, no baseplate, airflow is from Vin to Vout) 15 2.2 2.
PAGE 19
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters TYPICAL PERFORMANCE CURVES (VIN = 48V, resistive load step 50% to 75%) 100mV/div UCQ-3.3/30-D48 Output Transient Response (VIN = 48V, resistive load step 75% to 50%) 100mV/div UCQ-3.3/30-D48 Output Transient Response 100µsec/div 100µsec/div UCQ-3.3/30-D48 Enable On/Off UCQ-3.
PAGE 20
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters MECHANICAL SPECIFICATIONS UCQ with Optional Baseplate 0.40 (10.2) 2.30 (58.4) A 2.30 (58.4) B A 0.015 minimum clearance between standoffs and highest component 2.00 (50.8) 5 6 2 7 1 0.300 (7.6) Case C67 BOTTOM VIEW 1.45 (36.8) 4 3 0.600 (15.2) SCREW LENGTH MUST NOT GO THROUGH BASEPLATE B B B A A #M3 THD. X 0.15 DEEP TYPICAL 4 PL. 1.03 (26.2) PINS 1-3, 5-7: 0.040Ø ±0.002 (1.016 ±0.
PAGE 21
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters TECHNICAL NOTES Input Fusing Certain applications and/or safety agencies may require the installation of fuses at the inputs of power conversion components. Fuses should also be used if the possibility of sustained, non-current-limited, input-voltage polarity reversals exists.
PAGE 22
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters +SENSE +VOUT 7 8 C1 C2 SCOPE RLOAD 4 –VOUT 5 –SENSE C1 = 1µF C2 = 10µF LOAD 2-3 INCHES (51-76mm) FROM MODULE Remote Sense Note: The Sense and VOUT lines are internally connected through low-value resistors. Nevertheless, if the sense function is not used for remote regulation the user should connect the +Sense to +VOUT and –Sense to –VOUT at the DC-DC converter pins.
PAGE 23
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters A single resistor connected from the Trim pin (pin 6) to the +Sense (pin 7) will increase the output voltage. A resistor connected from the Trim Pin (pin 6) to the –Sense (pin 5) will decrease the output voltage. Trim adjustments greater than the specified range can have an adverse affect on the converter’s performance and are not recommended.
PAGE 24
Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC-DC Converters On/Off Control The input-side, remote On/Off Control function (pin 2) can be ordered to operate with either logic type: Positive (no suffix) logic models are enabled when pin 2 is left open (or is pulled high, applying +3.5V to +13.5V with respect to –Input, pin 1) as per Figure 8. Positive-logic devices are disabled when pin 2 is pulled low (0 to 0.8V with respect to –Input).