F4804-G - Power-One - Datasheet.Live

REV. June 01, 2005 Page 1 of 10 www.power-one.com

F4804 Input Filter Data Sheet

80Vdc @ 4A Output

di/dt

Applications

Differential and Common Mode filtering for DC-DC

converters with 48 V and 24 V input:

• Telecommunications

• Data communications

• Distributed Power Solutions

Features

• Maximum current 4 A

• Maximum operating input voltage 80V

• 100V/50V 100ms transient withstand capability

• Differential LC-filter stage

• Surface mounted design

• Small footprint – only 0.75 sq. in.

• Low profile: 0.339” [8.61 mm] maximum

• Low weight: 0.18 oz [5 g]

• -40°C to 85°C ambient temperature range

• No airflow required up to 3 A current @ 85°C

• Enables Q

&& ™ Family converter compliance with

EN55022 and FCC Class B requirements conducted

emissions

• UL 60950 recognition in U.S. & Canada, and

DEMKO certification per IEC/EN 60950

• RoHS compliant (Q4 2005)

Description

The F4804 Input Filter minimizes the conducted and radiated emissions generated by switch mode DC-DC

converters, and allows board designs utilizing Q

&& ™ Family converters to easily meet stringent Class B conducted

emissions requirements.

Using the F4804 filter as the primary power-conditioning device in front of any of the Q

&& ™ Family converters will

provide a “worry-free” EMI design. Unlike most available off-the-shelf filter modules, the F4804 contains, in

addition to common mode noise reduction components, a differential LC-filter stage, which guarantees compliance

with conducted noise standards in the whole frequency range from 150 kHz to 30 MHz, including fundamental

switching frequency and its harmonics. Test results show headroom of 15-20 dB for conducted noise quasi-peak

levels, in relation to Class B requirements; see Figs. 2-8.

F4804 filter is designed specifically for distributed power solutions in conjunction with Q

&& ™ Family DC-DC

converters. Low profile and small size (only 0.75 sq. in.) in a surface mount package helps the system designer

save real estate on the system board, and simplifies the layout.

A single F4804 filter can be used with multiple converters, and is capable of providing up to a nominal 4 A to the

converter input bus. It can provide up to 3 A at 85°C ambient with no airflow.

REV. June 01, 2005 Page 2 of 10 www.power-one.com

F4804 Input Filter Data Sheet

80Vdc @ 4A Output

di/dt

Electrical Specifications

Conditions: TA=25ºC, No Airflow, Vin=48 Vdc, unless otherwise specified.

Parameter Notes Min Typ Max Units

Absolute Maximum Ratings

Input Voltage1 Continuous 0 100 Vdc

Operating Ambient Temperature -40 85 °C

Storage Temperature -55 125 °C

Electrical Characteristics

Operating Input Voltage Range1, 2 0 48 80 Vdc

Maximum Operating Current 85°C ambient, no airflow 3 3 Adc

85°C ambient, airflow 300 LFM [1.5 m/s] 4 Adc

Voltage Drop at Maximum Load 4 A 0.32 Vdc

Voltage Drop – Typical Application Loaded with Q48x30033 (3.3 V, 30 A) 4 0.16 Vdc

Efficiency at Typical Load Loaded with Q48x30033 (3.3 V, 30 A) 99.6 99.7 %

Conducted Noises, Quasi-Peak Level 5 Loaded with Q48x30033 (3.3 V, 30 A)

- Main frequency and low harmonics up

to 5 MHz 40 45 dBµV

- High frequencies up to 30 MHz 35 48 dBµV

Additional Notes:

1. Absolute maximum voltage and maximum operating voltage are for the filter itself; check maximum rating for corresponding

DC-DC converters. Filter will not be damaged with reversed input voltage.

2. Designed primarily for 48 V applications, filter can be used with both 48 V converters (operating range from 36 V to 72 V) and

24 V converters (operating range from 18 V to 36 V). Typical filter application schematic is shown on Fig. 1.

3. Maximum current at any ambient temperature without airflow can be calculated as Imax = [4 - 0.025*(Tamb-45)] A, with

constraint Imax ≤ 4 A.

4. Letter x denotes either T or S, i.e. filter module is loaded either with Q48T30033 through-hole or Q48S30033 surface

mounted converter.

5. Typical EMI plot for conducted emissions (with fully loaded Q48x30033 converter connected to the filter output, see

schematic Fig. 1) is shown on Fig. 2. Plot was taken by independent test laboratory TUV. TUV report confirms compliance

with Class B requirements according EN-55022 (CISPR-22) and FCC standards.

REV. June 01, 2005 Page 3 of 10 www.power-one.com

F4804 Input Filter Data Sheet

80Vdc @ 4A Output

di/dt

Rload

Vin (+)

Vin (-)

ON/OFF

Vout (+)

Vout (-)

TRIM

SENSE (+)

SENSE (-)

QFamily

Converter

(Top View)

47uF

ceramic

Cin

F4804

Vsource

++IN

-IN -OUT

+OUT

(Top View)

Input Filter

Fig. 1: Typical F4804 application schematic with Q

&& Family converter (negative ON/OFF

logic). Values C1, C2 and Cin depend on the specific converter input and output voltage.

Fig. 2: Conducted emissions plot (quasi-peak values: "x", average values: "+")

for Q48x30033 in conjunction with F4804 filter. Limits shown are for quasi-peak

(upper limit) and average (lower limit) values. C1 = 2200 pF, C2 = 3300 pF, Cin

= 47 µF.

REV. June 01, 2005 Page 4 of 10 www.power-one.com

F4804 Input Filter Data Sheet

80Vdc @ 4A Output

di/dt

Fig. 3: Conducted emissions plot (quasi-peak values: "x", average values: "+")

for Q48x30025 in conjunction with F4804 filter. Limits shown are for quasi-peak

(upper limit) and average (lower limit) values. C1 = 2200 pF, C2 = 3300 pF, Cin

= 47 µF.

REV. June 01, 2005 Page 5 of 10 www.power-one.com

F4804 Input Filter Data Sheet

80Vdc @ 4A Output

di/dt

Fig. 4: Conducted emissions plot (quasi-peak values: "x", average values: "+")

for Q48x30020 in conjunction with F4804 filter. Limits shown are for quasi-peak

(upper limit) and average (lower limit) values. C1 = 2200 pF, C2 = 3300 pF, Cin

= 47 µF.

REV. June 01, 2005 Page 6 of 10 www.power-one.com

F4804 Input Filter Data Sheet

80Vdc @ 4A Output

di/dt

Fig. 5: Conducted emissions plot (quasi-peak values: "x", average values: "+")

for Q48x30018 in conjunction with F4804 filter. Limits shown are for quasi-peak

(upper limit) and average (lower limit) values. C1 = 2200 pF, C2 = 3300 pF, Cin

= 47 µF.

REV. June 01, 2005 Page 7 of 10 www.power-one.com

F4804 Input Filter Data Sheet

80Vdc @ 4A Output

di/dt

Fig. 6: Conducted emissions plot (quasi-peak values: "x", average values: "+")

for Q48x30015 in conjunction with F4804 filter. Limits shown are for quasi-peak

(upper limit) and average (lower limit) values. C1 = 2200 pF, C2 = 3300 pF, Cin

= 47 µF.

REV. June 01, 2005 Page 8 of 10 www.power-one.com

F4804 Input Filter Data Sheet

80Vdc @ 4A Output

di/dt

Fig. 7: Conducted emissions plot (quasi-peak values: "x", average values: "+")

for Q48x15050 in conjunction with F4804 filter. Limits shown are for quasi-peak

(upper limit) and average (lower limit) values. C1 = 0 pF (not mounted), C2 =

1500 pF, Cin = 200 µF.

REV. June 01, 2005 Page 9 of 10 www.power-one.com

F4804 Input Filter Data Sheet

80Vdc @ 4A Output

di/dt

Fig. 8: Conducted emissions plot (quasi-peak values: "x", average values: "+")

for Q48x08120 in conjunction with F4804 filter. Limits shown are for quasi-peak

(upper limit) and average (lower limit) values. C1 = 0 pF (not mounted), C2 =

1500 pF, Cin = 200 µF.

REV. June 01, 2005 Page 10 of 10 www.power-one.com

F4804 Input Filter Data Sheet

80Vdc @ 4A Output

di/dt

Physical Information (Actual size shown)

TOP VIEW

-IN

SIDE VIEW

+IN

-OUT

+OUT

Filter Part Numbering Ordering Information

Product

Series Input

Voltage Rated Load

Current Tape and Reel Environmental

F 48 04 - R G

Filter Module

≤ 80 V

No letter ⇒ Bulk

R ⇒ Tape and Reel

G ⇒ Green/RoHS

Compliant

Not populated ⇒ Non-RoHS

Compliant

The example above describes P/N F4804-RG: 0-80 V input, 4 A @ 80 V output, tape and reel, and RoHS compliant.

Please consult factory regarding availability of a specific (including RoHS compliant) version.

NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical

components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written

consent of the respective divisional president of Power-One, Inc.

TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on

the date manufactured. Specifications are subject to change without notice.

Pad/Pin Connections

Pad/Pin # Function

+IN Vin (+)

-IN Vin (-)

-OUT Vout (-)

+OUT Vout (+)

• All dimensions are in inches [mm]

• Connector Material: Copper

• Connector Finish: Gold over Nickel

• Converter Weight: 0.18 oz [5 g]

• Recommended Surface-Mount Pads:

Min. 0.080” x 0.112” [2.03 x 2.84]

Max. 0.092” x 0.124” [2.34 x 3.15]]