Specification	PTB48540BAH

Applications	ITE (Commercial)
Current - Output (Max) [Max]	3 A
Efficiency	79 %
Mounting Type	Through Hole
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	13-DIP Module
Power (Watts)	10 W
Type	Isolated PoE Module
Voltage - Input (Max) [Max]	57 V
Voltage - Input (Min) [Min]	36 V
Voltage - Isolation	1.5 kV
Voltage - Output 1	3.3 V

PTB48540B Series

3.3 V, 10-W Power-Over-Ethernet Power Module

Part	Voltage - Isolation	Applications	Package / Case	Type	Operating Temperature [Max]	Operating Temperature [Min]	Size / Dimension [z]	Size / Dimension [x]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [y]	Size / Dimension [z]	Voltage - Input (Max) [Max]	Voltage - Input (Min) [Min]	Number of Outputs	Mounting Type	Current - Output (Max) [Max]	Voltage - Output 1	Power (Watts)	Efficiency
Texas Instruments PTB48540AAH	1.5 kV	ITE (Commercial)	13-DIP Module	Isolated PoE Module	85 °C	-40 °C	0.35 "	41.1 mm	1.62 "	38.1 mm	1.5 in	8.9 mm	57 V	36 V	1	Through Hole	2 A	5 V	10 W
Texas Instruments PTB48540BAH	1.5 kV	ITE (Commercial)	13-DIP Module	Isolated PoE Module	85 °C	-40 °C							57 V	36 V	1	Through Hole	3 A	3.3 V	10 W	79 %

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tray	24	$ 57.64
Texas Instruments	TIW TRAY	1	$ 63.75
		100	$ 56.67
		250	$ 46.59
		1000	$ 41.67

Description

General part information

PTB48540B Series

The PTB48540 series of power modules is specifically designed to provide an isolated, low-voltage power source to a remote Powered Device (PD) in Power-Over-Ethernet (PoE) applications. These modules are rated 10 W and incorporate all the necessary interface requirements to comply with IEEE Std. 802.3af, for managing the input power to the PD from the PoE Power Sourcing Equipment (PSE). This includes PD detection and PD classification current signatures required for the PSE. The modules are compatible with PD classifications, class 0 through class 3.

In addition to a fully integrated DC/DC converter, each PTB48540 power module incorporates internal input diode bridges to support both Data Line and Spare Line pair standard Ethernet connections, an integral transient suppressor for input over-voltage protection, and an EMI filter to ensure noise compatibility with Ethernet data signals.

Other features include an input undervoltage lockout (UVLO), over-current and short-circuit protection, an output voltage adjust/trim, and over-temperature protection. An "Output Inhibit" control allows the output voltage to be turned off to support an idle condition or power saving mode. The output voltage options are for 3.3-V, 5-V, or 12-V output. The target applications are small low-power remote IP appliances, such as security card readers and cameras, test dongles, and IP phone consoles.

Documents

Technical documentation and resources

PTB48540 Series: 10-W Power-Over-Ethernet Isolated Power Module Assembly datasheet (Rev. B)

Data sheet