Product Summary

The pt4856 Excalibur power module is an isolated tripleoutput DC/DC converter that operates from a standard (–48V) central office supply. These modules are rated for a combined output of up to 25A, and were designed for powering mixed logic applications. The triple-output voltage provides a compact multiple-output power supply in a single DC/DC module.



Parametrics

pt4856 absolute maximum ratings: (1)Input Voltage Range Vin Continuous: 36 to 75 V; (2)Switching Frequency μs Over Vin and Io ranges: 280 to 340 kHz; (3)Standby Input Current Iin standby pins 3 & 4 open circuit: 2.5 to 4 V; (4)External Output Capacitance Cout Per each output: 5000 μF; (5)Primary/Secondary Isolation V iso: 1500 V.

Features

pt4856 features: (1)Triple Logic Voltage Outputs (Independently Regulated !); (2)Input Voltage Range: 36V to 75V; (3)1500VDC Isolation; (4)Over-Current Protection; (5)Over-Voltage Protection; (6)Over-Temperature Shutdown; (7)Under-Voltage Lockout; (8)Independently Adjustable Outputs; (9)Dual Logic On/Off Control; (10)Fixed Frequency Operation; (11)Solderable Space Saving Package: 1.97 sq. in. PCB Area (suffix N).

Diagrams

pt4856 pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
PT4856A
PT4856A
Texas Instruments
DC/DC Switching Converters 5/3.3/1.5V 48V Inp Trpl-Otpt DC-DC Conv
Data Sheet
Negotiable 
PT4856N
PT4856N
Texas Instruments
DC/DC Switching Converters 5/3.3/1.5V 48V Inp Trpl-Otpt DC-DC Conv
Data Sheet
Negotiable 
PT4856C
PT4856C
Texas Instruments
DC/DC Switching Converters 5/3.3/1.5V 48V Inp Trpl-Otpt DC-DC Conv
Data Sheet
Negotiable