PT4855N [Rochester]

Name: PT4855N
Brand: Rochester
SKU: PT4855N
Availability: InStock

Part No:

PT4855N

Category:

DC/DC Converters

Manufacturer:

Rochester

Description:

The PT4850 Excalibur™ power modules are a series of isolated triple-output DC/DC converters that operate from a standard (–48V) central office supply. Rated for a combined output of up to 25A, designed for powering mixed logic applications.

Datasheet:

Stock Status:

Available for RFQ

Pricing:

Request Volume Pricing

Quote Response:

Within 24 Hours

Shipping:

In-stock parts ship in 1–2 business days

Specification

Type

Parameter

Case Temperature

105°C

Cross Regulation

±10mV

Current Limit Threshold Vo1

20A

Current Limit Threshold Vo2

15A

Current Limit Threshold Vo3

15A

Enable High Level Input Voltage Max

Open

Enable High Level Input Voltage Min

3.5V

Enable Low Level Input Current

0.5mA

Enable Low Level Input Voltage Max

0.8V

Enable Low Level Input Voltage Min

-0.2V

External Output Capacitance Max

5000µF

Flammability

UL 94V-O

Input Voltage Continuous Max

75V

Input Voltage Continuous Min

36V

Input Voltage Surge Max

80V

Internal Input Capacitance

2µF

Isolation Voltage

1500V

Line Regulation

±0.2% to ±0.5%

Load Regulation

±5 to ±10mV

Operating Temperature

-40°C ~ +85°C

Otp Max

125°C

Otp Min

110°C

Output Adjust Range

±10%

Output Current Total Max

25A

Output Over Voltage Protection

125%

PT4851 PT4852 PT4853 PT4854 PT4855 Efficiency

85%

PT4851 PT4852 PT4853 PT4854 PT4855 Output Current Vo1 Max

15A

PT4851 PT4852 PT4853 PT4854 PT4855 Output Current Vo2 Max

10A

PT4851 PT4852 PT4853 PT4854 PT4855 Output Current Vo3 Max

10A

PT4856 Efficiency

88%

PT4856 Output Current Vo1 Max

10A

PT4856 Output Current Vo2 Max

10A

PT4856 Output Current Vo3 Max

10A

Package

Vertical (N), Horizontal (A), SMD (C)

Pcb Area

1.97 sq. in.

Set Point Voltage Tolerance

1.5%

Standby Input Current Max

4mA

Standby Input Current Min

2.5mA

Storage Temperature

-40°C ~ +125°C

Switching Frequency

280kHz ~ 340kHz

Temperature Sensor 100c

1.5V

Temperature Sensor 40c

0.1V

Temperature Variation

±0.5%

Total Output Voltage Variation

±2% to ±3%

Transient Response Overshoot

5%

Transient Response Time

200 µSec

Under Voltage Lockout Off Max

32V

Under Voltage Lockout Off Min

30V

Under Voltage Lockout On Max

36V

Under Voltage Lockout On Min

34V

Weight

90 grams

Products Detail

The PT4850 series are isolated triple-output DC/DC converters operating from a standard (–48V) central office supply, rated for up to 25A combined output for mixed logic applications. They provide a compact multiple-output power supply in a single module with options for DSP/ASIC core voltage and I/O voltages. Features include flexible On/Off enable control, input under-voltage lockout, over-temperature protection, current limiting, short-circuit protection, and internal sequencing for DSP IC power requirements. The modules use a space-saving solderable package requiring no external heat sink, with vertical, horizontal, and surface mount configurations available.

Key Features

Triple Logic Voltage Outputs, Dual Logic On/Off Control, Fixed Frequency Operation, Input Voltage Range: 36V to 75V, Solderable Space Saving Package: 1.97 sq. in. PCB Area (suffix N), 1500VDC Isolation, IPC Lead Free 2, Over-Current Protection, Over-Voltage Protection, Over-Temperature Shutdown, Under-Voltage Lockout, Independently Adjustable Outputs

Application scenarios

Mixed logic applications

Documents

Datasheets:

PT4850 Series

Product FAQ

1. Is PT4855N available for RFQ?

Yes. PT4855N by Rochester is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

2. Why is there no fixed price for PT4855N?

Pricing for PT4855N can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

3. What are the key specifications of PT4855N?

PT4855N is a Rochester DC/DC Converters with PT4851 PT4852 PT4853 PT4854 PT4855 Output Current Vo1 Max: 15A and PT4851 PT4852 PT4853 PT4854 PT4855 Output Current Vo2 Max: 10A. Review the product details or submit an RFQ if you need confirmation before purchase.

4. How fast can I get a quote for PT4855N?

Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

5. How soon can PT4855N be shipped?

If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

6. Can you suggest alternatives to PT4855N?

Yes. If PT4855N is unavailable, obsolete, or does not meet your required lead time, we can help check similar Rochester DC/DC Converters parts or compatible alternatives.

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