PTEA404120 Datasheet, PDF (1/14 Pages) Texas Instruments – 50-W, 48-V INPUT, 12-V OUTPUT, ISOLATED DC/DC CONVERTER

PTEA404120
www.ti.com
SLTS274A – DECEMBER 2006 – REVISED JANUARY 2007
50-W, 48-V INPUT, 12-V OUTPUT, ISOLATED DC/DC CONVERTER
FEATURES
• 50-W Output
• Input Voltage Range: 36 V to 75 V
• 91% Efficiency
• 2000 V_DC Isolation
• On/Off Control
• Overcurrent Protection
• Differential Remote Sense
• Adjustable Output Voltage
• Output Overvoltage Protection
• Over-Temperature Shutdown
• Undervoltage Lockout
• Standard 1/8-Brick Footprint
• UL Safety Agency Approval
DESCRIPTION
The PTEA404120 power module is a single-output
isolated DC/DC converter, housed in an industry
standard one-eighth brick package. This module is
rated up to 50 W with a maximum load current of
4.2 A.
The PTEA404120 operates from a standard 48-V
telecom central office (CO) supply and occupies less
than 2.0 in² of PCB area. The modules offer OEMs a
compact and flexible high-output power source in an
industry standard footprint. They are suitable for
distributed power applications in both telecom and
computing environments, and may be used for
intermediate bus converter architectures.
Features include a remote On/Off control with
optional logic polarity, an undervoltage lockout
(UVLO), a differential remote sense, and an industry
standard output voltage adjustment using an external
resistor. Protection features include output
overcurrent protection (OCP), overvoltage protection
(OVP), and thermal shutdown (OTP).
The modules are fully integrated for stand-alone
operation, and require no additional components.
STANDARD APPLICATION
SENSE (+)
7
+V_I
1 _+VI
Sense(+)
+V_O ⁸
C_I
(Optional)
PTEA404120N Adjust ⁶
−V_I
3
−V_I
Remote
−V_O ⁴
On/Off
Sense(−)
2
5
+V_O
L
C_O
O
(Optional) _A
D
−V_O
SENSE (–)
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2007, Texas Instruments Incorporated