QBK025A0B1 datasheet(3/16 Pages) LINEAGEPOWER

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Data Sheet

March 27, 2008

QBK025A0B DC-DC Power Modules:

36-55Vdc Input; 12Vdc Output Voltage; 25A Output Current

LINEAGE POWER

Electrical Specifications (continued)

Parameter

Device

Symbol

Min

Typ

Max

Unit

Output Voltage Set-point

VO, set

Vdc

(VIN=VIN,nom, IO=15A, Ta =25°C)

Output Voltage

11.4

⎯

12.6

Vdc

(Over all operating input voltage, resistive

load, and temperature conditions until end of

life)

Output Regulation

Line (VIN = VIN, min to VIN, max)

All

⎯

0.2

⎯

%Vo

Load (IO = IO, min to IO, max)

All

⎯

%Vo

Temperature (Tref =TA, min to TA, max)

All

⎯

150

⎯

Output Ripple and Noise on nominal output

(VIN =VIN, nom and IO = IO, min to IO, max,

RMS (5Hz to 20MHz bandwidth)

All

⎯

mVrms

Peak-to-Peak (5Hz to 20MHz bandwidth)

All

⎯

200

⎯

mVpk-pk

External Capacitance

All

CO, max

⎯

10,000

μF

Output Current

12V

Adc

Output Current Limit Inception (Hiccup Mode)

(Vo = 90% Vo, set )

12V

IO, lim

⎯

28.5

⎯

Adc

Efficiency

12V

⎯

VIN= 48V, TA=25°C, IO= IO, max

Switching Frequency

fsw

⎯

300

⎯

KHz

Dynamic Load Response

(dIO/dt=0.1A/μs; VIN=VIN, nom; TA=25°C)

Load change from IO = 50% to 75% of IO, max

Peak Deviation

12V

Vpk

⎯

% VO

Settling Time (VO<10% peak deviation)

⎯

200

⎯

μs

Load change from IO = 50% to 25% of IO, max,

Peak Deviation

12V

Vpk

⎯

% VO

Settling Time (VO<10% peak deviation)

⎯

200

⎯

μs

Isolation Specifications

Parameter

Symbol

Min

Typ

Max

Unit

Isolation Capacitance

Ciso

⎯

2000

⎯

Isolation Resistance

Riso

⎯

MΩ

General Specifications

Parameter

Min

Typ

Max

Unit

Calculated MTBF (IO=80% of IO, max, TA=25°C,

airflow=1m/s(200LFM))

2,600,000

Hours

Weight

⎯

44 (1.55)

g (oz.)

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