Datasheet Texas Instruments PTB48540B

Not Recommended for New Designs
PTB48540 Series
10-W Power-Over-Ethernet Isolated
Power Module Assembly SLTS224B – APRIL 2004 – REVISED JULY 2004 Features Input Voltage Range:
36 V to 57 V 10 W Output IEEE Std. 802.3af Compliant
(for PoE-PD Interface) 85 % Efficiency Low Profile (9 mm) Output Voltage Trim/Adjust Under-Voltage Lockout Input Transient Suppressor Internal EMI Filter Meets FCC Class B Radiated &
Class A Conducted Output Inhibit Control Short Circuit Protection Over Temperature Shutdown 1500 VDC Isolation Safety Approvals (Pending):
UL 60950, cUL 60950, EN60950 Description Pin Assignments The PTB48540 series of power modules is specifically designed to provide
an isolated, low-voltage power source to
a remote Powered Device (PD) in PowerOver-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 …