Details, datasheet, quote on part number: PSB243-7IR
PartPSB243-7IR
CategoryPower Management and Supplies => IC Power Supplies => 7423784
Title1-OUTPUT DC-DC REG PWR SUPPLY MODULE
Description
CompanyPower-One
DatasheetDownload PSB243-7IR datasheet
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Specifications 
Output Voltage23.86 to 24.14 volts
Input Voltage31 to 144 volts
Operating Temperature-25 to 71 C (-13 to 160 F)

 

Features, Applications
PSB Series Extended Data Sheet Positive Switching Regulators (Rugged)

Input voltage V DC Single output DC No input to output isolation High efficiency to 96% Extremely wide input voltage range Very good dynamic properties Input undervoltage lock-out External output voltage adjustment and inhibit 2 temperature ranges

Continuous no-load and short-circuit proof No derating Safety according to IEC/EN 60950

The PSB series of positive switching regulators is designed as power supply modules for electronic systems. Their major advantages include a high level of efficiency that remains virtually constant over the entire input range, high reliability, low ripple and excellent dynamic response. Modules with input voltages 144 V are specially designed for battery driven mobile applications. The case design allows operation at nominal load to 71C without additional cooling.

Options

Io max for V or reduced temperature. See: Thermal Considerations. Surges 156 V for 2 s. See also: Electrical Input Data: DVio min. Efficiency at Vi nom and Io nom.

Non standard input/output configurations or special custom adaptions are available on request. See also: Commercial Information: Inquiry Form for Customized Power Supply.

Page Electromagnetic Compatibility (EMC)............................ 8 Immunity to Environmental Conditions.......................... 9 Mechanical Data........................................................... 10 Safety and Installation Instructions............................... 10 Description of Options.................................................. 12 Accessories................................................................... 12 EC Declaration of Conformity....................................... 13

Summary......................................................................... 1 Model Selection and Key Data....................................... 1 Part Number Description................................................ 2 Functional Description.................................................... 2 Electrical Input Data........................................................ 3 Electrical Output Data..................................................... 4 Auxiliary Functions.......................................................... 6

PSB 3 -7 Positive switching regulator in case B02................... PSB Nominal output voltage in volt (5A for 5.1 V)....... 5A,... 48 Nominal output current in ampere............................. 4, 5 Operational ambient temperature range to 71C (option)........................................... -9 Input filter (option)............................................................ L Inhibit input....................................................................... i Control input for output voltage adjustment 1................. R Potentiometer 1 (option)................................................... P Thyristor crowbar (option).............................................. C

PSB = A positive switching regulator with (4) A output, ambient temperature range to 71C, input filter, inhibit input, potentiometer and thyristor crowbar.

The switching regulators are designed using the buck converter topology. See also: Technical Information: Topologies. The input is not electrically isolated from the output. During the on period of the switching transistor, current is transferred to the output and energy is stored in the output choke. During the off period, this energy forces the current to continue flowing through the output choke to the load and back through the freewheeling diode. Regulation is accomplished by varying the on/off duty ratio of the power switch.

These regulators are ideal for a wide range of applications, where input to output isolation is not necessary, or where already provided by an external front end (e.g. a transformer with rectifier). To optimise customer's needs, additional options and accessories are available.

Peak value of inrush current Vi nom without option L Rise time Time to half-value Peak value of inrush current Vi nom with option L Rise time Time to half-value Input RFI level, 55011/22 Vi nom, Io nom 30 MHz with option L

Vio min Min. diff. voltage (Vi Vo) Undervoltage lock-out No load input current

Peak value of inrush current Vi nom without option L Rise time Time to half-value Peak value of inrush current Vi nom with option L Rise time Time to half-value Input RFI level, 55011/22 Vi nom, Io nom 30 MHz with option L

Surges 156 V for 2 s (complying to LES-DB standard for = 110 V). With external input capacitor F/200 V and option L.

External Input Circuitry The sum of the lengths of the supply lines to the source or to the nearest + b) should not exceed 5 m unless option L is fitted. This option is recommended in order to prevent power line oscillations and reduce superimposed interference voltages. See also: Technical Information: Application Notes.

Fig. 2 Switching regulator with long supply lines.

 

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