Specification	PTB48502AAZ

Applications	ITE (Commercial)
Control Features	Active High, Enable
Current - Output (Max)	13 A, 10 A
Features	Remote On/Off, UVLO, OCP, OTP
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	10-SMD Module
Power (Watts)	45 W
Size / Dimension [x]	2.22 in
Size / Dimension [x]	56.4 mm
Size / Dimension [y]	36.8 mm
Size / Dimension [y]	1.45 in
Size / Dimension [z]	12.6 mm
Size / Dimension [z]	0.49 in
Type	Isolated Module
Voltage - Input (Max) [Max]	75 V
Voltage - Input (Min) [Min]	36 V
Voltage - Isolation	1.5 kV
Voltage - Output 1	3.3 V
Voltage - Output 2	1.2 V

PTB48502A Series

3.3/1.2-V 45-W Output, 48-V Input DC/DC Converter

Part	Features	Mounting Type	Voltage - Input (Max) [Max]	Power (Watts)	Size / Dimension [z]	Size / Dimension [y]	Size / Dimension [x]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [z]	Voltage - Output 1	Voltage - Input (Min) [Min]	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Applications	Voltage - Output 2	Voltage - Isolation	Number of Outputs	Type	Current - Output (Max)	Control Features
Texas Instruments PTB48502AAZ	OCP OTP Remote On/Off UVLO	Surface Mount	75 V	45 W	12.6 mm	36.8 mm	2.22 in	56.4 mm	1.45 in	0.49 in	3.3 V	36 V	10-SMD Module	85 °C	-40 °C	ITE (Commercial)	1.2 V	1.5 kV	2	Isolated Module	10 A 13 A	Active High Enable

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tray	9	$ 145.43
Texas Instruments	TIW TRAY	1	$ 140.94
		100	$ 136.71
		250	$ 113.82
		1000	$ 105.97

Description

General part information

PTB48502A Series

The PTB4850x power modules are a dual-output isolated DC/DC converter, designed to provide the logic supply voltages for AC-7 based xDSL applications. The PTB48500 is rated for 13 A of total output current, making it suitable for 32-channel xDSL applications. The PTB48501 and PTB48502 provide output current for powering up to 64 xDSL channels. The PTB48501 is rated for 16.5 A total output current, and the PTB48502, 21 A. The PTB48502 incorporates 10 W of additional capacity for powering peripheral circuitry. Any of these converters can be used for other applications with similar power requirements.

The modules operate from a standard telecom (-48 V) central office (CO) supply and include anon/offenable control, output current limit, over-temperature protection, input under-voltage lockout (UVLO). The PTB48500 and PTB48501 also incorporates a power-up reset (POR) output.

The modules are designed to operate with one of the PTB4851x DC/DC converter modules. The combination of PTB4850x and PTB4851x converter provides the complete the power supply for an AC7 chipset. TheEN OutandSync Outpins provide compatible output signals for controlling both the power up sequence and switching frequency the PTB48510.