Datasheet > QKS48T21120-PCAS#

QKS48T21120-PCAS#

更新时间： 2023-06-15 00:00:00

品牌	Logo	应用领域
BEL		/
页数	文件大小	规格书
9页	271K
描述
DC-DC Regulated Power Supply Module, 1 Output, 252W, Hybrid, PACKAGE-5

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QKS48T21120 DC-DC Bus Converter Data Sheet

Quarter-Brick with 48VDC Input; 12VDC @ 21A Output

Benefits

• Simplifies power system design; reduces design

time and technical risk

• Compatible with all (12 Vin nom.) POLs available in

the market

Features

• RoHS lead free solder and lead solder exempted

products are available

• Loosely regulated output

• High output power of 252 W

• Efficiency to 94%

• Wide-input voltage range from 36 to 75 VDC

• 100V/100ms input voltage surge withstand

• Input-to-output isolation: 1500 VDC

• Basic insulation

Applications

• Power systems utilizing Intermediate Bus

Architecture

• Networking equipment

• Data/voice processing

• Wireless communications

• Computing

• Backdrive protection

• Start-up into pre-biased load

• Output overcurrent protection

• Output overvoltage protection

• Overtemperature protection

• ATCA

• Remote on/off (primary referenced), positive or

negative logic option

• Designed to comply with NEBS GR-1089 and GR-63

• Safety: UL60950-1, CSA C22.2 No. 60950-1,TUV

EN60950-1, IEC60950-1

Description

The QKS is a high density and highly efficient, isolated DC-DC converter that operates over an input voltage range

of 36 VDC to 75VDC. It provides a 12 VDC nominal, loosely-regulated output voltage at up to 21 ADC of current.

The converter is an ideal choice for building a complete power system utilizing the Intermediate Bus Architecture

(IBA). The thermally-optimized construction of the QKS allows the converter to provide high output current over a

wide operating temperature range while maintaining a safe guardband for component electrical and thermal

ratings. The QKS employs 100% surface-mount components for consistency and reliability in the production

process.

Model Selection

Input

Voltage

VDC

Input

Current,

Max ADC

Output

Voltage

VDC

Output Rated

Current I _rated

ADC

Output

Ripple/Noise,

mV p-p

Typical

Eff.@ 75%

I _rated, 40C,

48Vi

Model

QKS48T21120

35-75

7.5

12 _(NOM.)

120 _(NOM.)

Model numbers highlighted in yellow or shaded are not recommended for new designs.

The QKS48T21120 is not recommended for new designs. Please refer to the

QME48T20120 data sheet for a similar product.

MCD10089 Rev. 1.1, 8-Oct-08

Page 1 of 9

www.power-one.com

12 3 4 5 6 7...9

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