Click to expand full text
PTB48500A and PTB48502A are Not Recommended for New Designs
www.ti.com
PTB48500 PTB48501 PTB48502
SLTS218C – SEPTEMBER 2003 – REVISED AUGUST 2006
DUAL-OUTPUT, 48-V INPUT ISOLATED DC/DC CONVERTER for xDSL
FEATURES
• Dual Outputs (Independently Regulated) • Input Voltage Range: 36 V to 75 V • Power-Up/Down Sequencing • 1500 VDC Isolation • Over-Current Protection • Over-Temperature Shutdown • Under-Voltage Lockout • Fixed Frequency Operation • Temp Range: –40°C to 85°C • Industry Standard Outline • Operates with PTB4851x for Complete AC7
Power Solution • Powers up to 64 DSL Ports • Safety Approvals:
– UL/cUL 60950
– EN 60950
DESCRIPTION
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.