Datasheet Texas Instruments PTB48600A

Not Recommended for New Designs
PTB48600 —48-V Input
85 W Dual Complementary-Output
DC/DC Converter for DSL SLTS239 JANUARY 2005 Features Dual Complementary Outputs
(В±5 V) Input Voltage Range:
36 V to 75 V On/Off Enable for Sequencing 1500 VDC Isolation Over-Current Protection Over-Temperature Shutdown Under-Voltage Lockout Temp Range: –40 to +85°C
Fixed Frequency Operation
Synchronizes with PTB4850x
Powers line driver ICs for AC-7
and other xDSL chipsets Safety Approvals: (Pending)
EN60950
UL/cUL60950 Description Pin Configuration The PTB48600A is one of a series
of isolated DC/DC converter modules
that provide a pair of complementary
supply voltages for powering line-driver
ICs in xDSL telecom applications. These
modules operate from a standard telecom
(-48 V) central office supply and can
provide up to a 85 W of power in a balanced load configuration.
The A-suffix module (В±5 V) is designed
to power the line driver ICs for the AC-7
ADSL chipset. It will also power any
other applications that require a complementary supply with relatively balanced …