QHS12-120-PHCRC [MURATA]

DC-DC Regulated Power Supply Module;


型号：	QHS12-120-PHCRC
厂家：	muRata
描述：	DC-DC Regulated Power Supply Module
文件：	总12页 (文件大小：643K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Q-Class Converters

QHS12-120 Model

Features:

12 Volt / 12 Amp output

Greater than 92% Efficient

Industry Standard ¼ Brick package

OBSOLETE PRODUCT

Full 144 Watt capability to more than 70 °C

Output voltage trim capability

Thermal and overload protection

Microprocessor controlled supervisory functions

9 Out-gassing feature ensures reliable pin soldering

9 RoHS Compliant

Table 1

Input Characteristics

Notes & Conditions (1)

Min

Typ.

Max

100

Units

Input Voltage Operating Range

Input Voltage Transient Protection

Input Undervoltage Lockout

Vdc

Turn-on Threshold

Turn-off Threshold

Hysteresis Voltage

Turn-on Threshold

Turn-off Threshold

Hysteresis Voltage

Steady-State

Input Overvoltage Lockout

3.3

150

Input Current

No-Load Input Current

Enabled state

Disabled Input Current

Disabled state

Input Reflected Ripple Current (2)

Inrush Current Transient

Enable Characteristics

0.1

mA p-p

A²s

Vdc

kOhms

Vdc

Internal pull-up voltage, ref. to Vi(-)

Input Impedance, internal pull-up

On State range

100

Enable – Negative Logic Version

Enable – Positive Logic Version

-0.1

0.8

Off State range

Vdc

For full details go to

www.murata-ps.com/rohs

Technical enquiries email: sales@murata-ps.com, tel: +508 339 3000

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QHS12-6201001509_D01_21/04/08

Q-Class Converters

Murata Power Solutions

QHS12-120 Model

Table 2

Output Characteristics

Notes & Conditions (1)

Min

11.88

Typ.

Max

12.12

0.2

12.1

Units

Output Voltage Set Point

Output Line Regulation

Output Load Regulation

Trim feature not used

Vdc

Output Voltage Total Regulation

11.8

Vdc

Output Ripple Voltage & Noise (3)

Output Current Operating Range

Efficiency

20 MHz Bandwidth

100

mV p-p

100% Load

Vin present: Enable to 90% Vout

Enabled: Vin applied to 90% Vout

Turn-On Time

Start-up Inhibit Time

Transient Response (4)

200

300

+10

μs

25% step, 0.1A/μs, ΔVo

Recovery Time

Of Output Voltage Set Point, typ.

Remote Sense Compensation Range

(5), (6)

Output Voltage Trim Range (6)

Maximium Output Capacitance

Of Output Voltage Set Point, typ.

-20

+10

μF

3,900

Table 3

Protection Characteristics

Notes & Conditions (1)

Non-Latching

Re-start rate

Min

Typ.

Max

Units

Output Over-Current Shutdown

Over Voltage Shutdown

Over Temperature Shutdown (7)

Latching

Non-Latching

15.2

Vdc

°C

125

Table 4

General Specifications

Isolation Voltage

Notes & Conditions (1)

Input to Output

Min

1500

Typ.

Max

Units

Vdc

Mohm

Isolation Resistance

Input to Output

Isolation Capacitance

Storage Temperature Range

Thermal Measurement Location

(TML) Temperature (9)

Operating Temperature Range

Semiconductor Junction Tempature

Material Flammability

MTBF

6800

Non-condensing

See mechanical drawing for location

-40

125

°C

Measured at TML

Package Rating

UL 94V-0

Calculated (Bellcore TR-332)

Demonstrated

120

150

°C

1.2

tbd

10⁶Hrs

kHz

Switching Frequency

Dimension (LxWxH)

350

2.28”L x 1.45” W x 0.47”H

(57.91 x 36.83 x 11.8 mm)

Weight

grams

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QHS12-120 Model

Table 5

Standards Compliance

Notes & Conditions (8)

UL/CSA 60950

TUV

c-UL-us recognized (basic Insulation), UL File# E165113

(Bauart) certified

Notes:

(1) Vin = 48Vdc, Ta = 25 °C, Airflow = 200 LFM unless otherwise noted.

(2) Input Reflected Ripple Current is specified when measured with the filter shown in Figure 7.

(3) Output Ripple Voltage and noise is specified when measured with a 10uF tantalum and a 1uF ceramic capacitor at the converter

output pins.

(4) Transient response is specified without a capacitor at the output of the converter.

(5) If remote sense is not required or used, the Sense(+) and Sense(-) pins must be connected to Vo(+) and Vo(-) respectively.

(6) See ‘Remote Sense’ and ‘Trim Feature’ details regarding output voltage range limitations.

(7) Thermal shutdown is monitored at the ‘Thermal Measurement Location” (TML). See ‘Mechanical Information’ on page 4 for the

thermal measurement location.

(8) See ‘Safety Considerations’.

(9) De-rating curves are conducted in a controlled environment. End application testing is required to ensure the Thermal Measurement

Location temperature is below the maximum specified.

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Q-Class Converters

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QHS12-120 Model

Mechanical Information

Figure 1

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Q-Class Converters

Murata Power Solutions

QHS12-120 Model

Pin Assignment

Table 6

Pin #

Pin Name

Vi(+)

Function

Notes & Conditions

Positive Input Voltage

Input Enable / Disable

Referenced to Vo(-).

No external source required.

Positive Logic: Floating = Enabled

Negative Logic: Floating = Disabled

Vi(-)

Vo(-)

Sense(-)

Trim

Sense(+)

Vo(+)

Negative Input Voltage

Negative Output Voltage

Negative Remote Sense

Output Voltage Trim

Positive Remote Sense

Positive Output Voltage

Must be connected to Vo(-)

See ‘Trim Feature’ below

Must be connected to Vo(+)

Remote Sense

The remote sense regulates the output voltage across the sensing connections, and should be connected at the point on the board where

regulation is desired. It is used to compensate for contact and distribution losses to the load. Efforts should be made to minimize these

losses to help reduce noise and improve efficiency of the system.

R_distribution

R_contact

Vo(+)

Sense(+)

Trim

R_{trim_up}

R_{trim_down}

C_load

I_load

Sense(-)

Vo(-)

R_distribution

R_contact

Figure 2

The voltage between remote sense pins and the output terminals must not exceed the output voltage sense range as specified in Table 2.

[Vo(+) – Vo(-)] - [Sense(+) – Sense(-)]

≤

Sense Range % x set point

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Q-Class Converters

Murata Power Solutions

QHS12-120 Model

Trim-up Feature

Trim-down Feature

The Trim-up configuration is used to increase the level of the

nominal output voltage.

The Trim-down configuration is used to reduce the level of the

nominal output voltage.

This is achieved by connecting a resistor between Trim and

Sense(+) pins:

Trim-down is achieved by connecting a resistor between Trim

and Sense(-) pins:

Vo(+)

Sense(+)

C_load

R_{trim_up}

Trim

R_{trim_down}

Sense(-)

C_load

I_load

Sense(-)

Vo(-)

Figure 3

Figure 4

The value of the trim-up resistor is determined by the following

equation:

The value of the trim-down resistor is determined by the

following equation:

QHS12-120 Trim-up and Trim-down Resistance

10000

The voltage between the Vo(+) and Vo(-) terminals must not

exceed the minimum output over voltage shut-down value

indicated in

Rup

Table 3. This limit includes any increase in voltage due to

remote-sense compensation and output voltage set-point

adjustment (trim).

Rdow n

1000

100

The amount of power delivered by the module is defined as the

voltage at the output terminals multiplied by the output current.

(Output Voltage Set Point, typ x Output Current, Max) When

using remote sense and/or trim, the output voltage of the module

can be increased, and may result in an increase of output

power. Care should be taken to ensure that the maximum output

power of the module remains at or below the maximum rated

power.

Delta (%)

Figure 5

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QHS12-120 Model

Efficiency Curves

Efficiency at 25 Degrees C

Figure 6 QHS12-120 Efficiency

Test Setup

Input Reflected Ripple

Input Reflected Ripple Test Circuit

Vi(+)

Vin

12uH

DC-DC

Converter

220uF,

ESR<0.1 ohms

@ 100kHz

33uF,

ESR<0.7 ohms

@ 100kHz

Vi(-)

RTN

Figure 8 Input Current at full load, 48Vdc input.

5 mA/div, 500 uS /div.

Figure 7 Test circuit used for input ripple current

measurement

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Q-Class Converters

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QHS12-120 Model

Output Ripple/Noise

Figure 9 Output ripple: Vin=48 Vdc, Iout=12 Amps.

Vert: 50 mV/div. Horiz: 2 uS/div

Load Transient +ve Step

Load Transient –ve Step

Figure 11 Top Trace: Load Current, 25% step,

5 A/div. Bottom Trace: Vout, 50 mV/div.

Horiz: 200 uS/div.

Figure 10 Top Trace: Load Current, 25% step,

5 A/div. Bottom Trace: Vout, 50 mV/div.

Horiz: 200 uS/div.

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Q-Class Converters

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QHS12-120 Model

Thermal Derating (Parallel) TTML=110C

Thermal Derating (Transverse) TTML=110C

0 LFM

100 LFM

200 LFM

300 LFM

400 LFM

Poly. (100 LFM)

100 LFM

200 LFM

300 LFM

400 LFM

Poly. (100 LFM)

Ambient Temperature [ºC]

Figure 12

Figure 13

Thermal Derating (Parallel) TTML=120C

Thermal Derating (Transverse) TTML=120C

0 LFM

100 LFM

200 LFM

300 LFM

400 LFM

Poly. (100 LFM)

100 LFM

200 LFM

300 LFM

400 LFM

Poly. (100 LFM)

Ambient Temperature [ºC]

Figure 14

Figure 15

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Q-Class Converters

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QHS12-120 Model

Thermal Image, 300 LFM, Output to Input

71.4°C

^E:E^61.:⁶61.6

D: 71.3

C: 71.7

D: 71.3^{F: 65.6}

B:64.6

A: 61.8

C: 71.7_{G: 62.8}

H: 64.2

F: 65.6

B: 64.6

A: 61.8

H: 64.2

G: 62.8

25.4°C

Figure 20 Parallel Airflow at 300 LFM, from output to input (right to left).

Ambient Temperature 25 °C. Vin = 48 V, and load current of 12 amps.

Turn-on (Vout vs Vin)

Turn-on (Enable)

Figure 17 Vin: 48 Vdc, load = 12 Adc plus 3,900 uf,

top trace (2): Vout, bottom trace (1): Enable Signal,

transition from disable to enable.

Figure 16 Converter pre-enabled, load = 12 Adc

Figure 18 include description/condition of test

plus 3,900 uf, top trace(2): Vout, bottom trace (1):

Vin from 0 to 48 Vdc.

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Q-Class Converters

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QHS12-120 Model

EMI Signature

Figure 19 Quasi-Peak Measurement of positive input at 48Vdc and full load, with EMI filter as shown in Fig. 27.

External EMI Test Filter

100 uF

100v

10 nF

+48v

RTN

1 uF

UUT

Pulse

P0351

10 nF

1 uF

1.470 mH

Figure 20 EMI Filter as used for EMI measurement of Fig. 26

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Q-Class Converters

QHS12-120 Model

Safety Considerations

This Product is certified to the standards listed in the ‘Standards Compliance’ section in the table above. If this product is built into

information technology equipment, the installation must comply with the above standard.

An external input fuse of 30 A maximum 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.

Part Number Designations

RoHS Compliant

The QHS12-120 series of converters is in compliance with the European Union Directive 2002/95/EC (RoHS) with respect to the following

sustances: lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium, polybrominated biphenyls (PBB) or polybrominated diphenyl ethers

(PBDE).

This product is subject to the following operating requirements

and the Life and Safety Critical Application Sales Policy:

Refer to: http://www.murata-ps.com/requirements/

Murata Power Solutions, Inc.

11 Cabot Boulevard, Mansﬁeld, MA 02048-1151 U.S.A.

ISO 9001 and 14001 REGISTERED

Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other

technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply

the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Speciﬁcations are subject to change without

notice.

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QHS12-120-PHCRC [MURATA]

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