Datasheet > 50QBTW4_4812S2.25

50QBTW4_4812S2.25

更新时间： 2024-02-18 06:54:52

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50W - Single Output - Wide Input - Isolated & Regulated

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50QBTW12_2.25 Series

50W - Single Output - Wide Input - Isolated & Regulated

DC-DC Converter

50 Watt

High eﬃciency

Isolation 2250V Input-to-

The 50QBTW12_2.25 converter series is composed of isolated, board-

mountable, ﬁxed switching frequency dc-dc converters that use synchro-

nous rectiﬁcation to achieve extremely high power conversion eﬃciency.

These DC-DC converter modules use advanced power processing, control

and packaging technologies to enhance the performance, ﬂexibility, reli-

ability and cost eﬀectiveness of mature power components. Each modu-

le is six-sided metal case enclosed to provide protection from the harsh

environments seen in many industrial and transportation applications.

Fixed switching frequency

provides predictable EMI

No life-span constrained

capacitor inside

output (optional 3000V)

Fully protected: OVP, OTP,

OCP and UVLO

Output voltage trim range of

-10%, +10%

4:1 & 8:1 & 12:1 Ultra-Wide

input range

Single, dual, & multiple out-

puts available

RoHS compliant

Common speciﬁcations

Short circuit protection:

Cooling:

Output speciﬁcations

Hiccup, continous, automatic recovery

Free air convection

-45°C~+115°C

Item

Test condition

V_NOM50% Load

Min

Typ

Max

1.5

Units

Output voltage

accuracy

Operation case temperature:

Storage temperature range:

Over temperature protection:

Storage humidity range:

Switching frequency:

Case material:

Line regulation

Load regulation

Minimum load

Low line to high line

10% to 100% load

0.3

0.5

-55°C~+125°C

120°C TYP, auto recovery

95% MAX, non-condensing

V_NOM: 220kHz MIN, 330kHz MAX

Aluminium

• Single output

• Dual output

Ripple&Noise

20MHz Bandwidth and

with 1uF MLCC. Output

Capacitor each output

1.5

MTBF (BellCore-TR-332 @50˚C G.B):

Weight:

TBD (M HR)

Temperature drift

0.04 %/°C

µs

TBD (g)

Transient recovery 25% load step change

time

800

Dimensions:

39.7 x 60 x 12.9mm

Transient peak

deviation

ΔIo/Δt=2.5A/us

%Vo

msec

VDC

Input speciﬁcations

Start-up time

When use enable

function

Item

Test condition

Min

Typ

Max

Units

Transient input voltage

ranges (100ms max)

• 50QBTW4_24xx

• 50QBTW4_48xx

• 50QBTW12_72xx

VDC

Trimming output

voltage

V_NOM10% Load

V_NOM

10%

160

Over voltage

protection

120

Operating input voltage • 50QBTW4_24xx

ranges

VDC

• 50QBTW4_48xx

• 50QBTW12_72xx

Output power

protection

154

Under voltage lockout

- Start-up voltage -

• 50QBTW4_24xx

• 50QBTW4_48xx

• 50QBTW12_72xx

VDC

Under voltage lockout

- Shutdown voltage -

• 50QBTW4_24xx

• 50QBTW4_48xx

• 50QBTW12_72xx

VDC

Example:

50QBTW12_7205S2.25

50= 50Watt; QB= Quarter Brick; TW= series; W12= ultra wide input

(12:1) 14-154Vin; 5Vout; S= single output; 2.25=2250VDC

Input current

See model selection guide

Standby mode (OFF, UVLO) 5mA

Enable function input

Positive logic

• ON

• OFF

Open or 8 ~ 20 VDC

Short or 0 ~ 1.2 VDC

Note:

1. Min. load shouldn‘t be less than 5%, otherwise ripple maybe increase

dramatically. Operation under minimum load will not damage the converter,

however, they may not meet all speciﬁcation listed.

2. All speciﬁcations are measured at TA=25°C, humidity<75%, nominal input

voltage and rated output load unless otherwise speciﬁed.

Negative logic

• ON

• OFF

Short or 0 ~ 1.2 VDC

Open or 8 ~ 20 VDC

3. It is recommended to protect the input by fuses or other protection devices.

4. In this datasheet, all the test methods of indications are based on corporate

standards.

5. All characteristics are for listed model, non-standard models may perform

diﬀerently, please contact our technical person for more detail.

6. Speciﬁcations subject to change without prior notice.

Isolation speciﬁcations

Item

Test condition

Min

Typ

Max Units

Isolation voltage

Tested for 1 minute

Additonal option for

50QBTW12_7205S3:

2250

VDC

3000

100

VDC

MΩ

Isolation resistance

500VDC, 70% RH

Isolation capacitance

1500

Page 1 of 3

GAPTEC-Electronic GmbH & Co. KG

sales@gaptec-electronic.com – www.gaptec-electronic.com

50QBTW12_2.25 – Rev. 2018-1.0

Speciﬁcations subject to change without notice.

12 3

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