PTH12040W
www.ti.com
SLTS237A – DECEMBER 2004 – REVISED OCTOBER 2005
50-A, 8-V to 14-V INPUT, NON-ISOLATED WIDE-OUTPUT
ADJUST POWER MODULE
FEATURES
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50-A Output Current
8-V to 14-V Input Voltage
Wide-Output Voltage Adjust (0.8 V to 5.5 V)
Efficiencies up to 96%
On/Off Inhibit
Differential Output Sense
Output Overcurrent Protection
(Nonlatching, Auto-Reset)
Overtemperature Protection
Auto-Track™ Sequencing
Start Up Into Output Prebias
Margin Up/Down Controls
Operating Temperature: –40°C to 85°C
Multi-Phase, Switch-Mode Topology
Programmable Undervoltage Lockout (UVLO)
Safety Agency Approvals: UL/cUL 60950,
EN60950, VDE
APPLICATIONS
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Advanced Computing and Server Applications
NOMINAL SIZE =
2.05 in x 1.05 in
(52 mm x 26,7 mm)
DESCRIPTION
The PTH12040W is a high-performance 50-A rated, non-isolated, power module, which uses the latest
multiphase switched-mode topology. This provides a small, ready-to-use module, that can power the most densly
populated multiprocessor systems.
Operating from an input voltage range of 8 V to 14 V, the PTH12040W requires a single resistor to set the output
voltage to any value over the range, 0.8 V to 5.5 V. The wide input voltage range makes the PTH12040W
particularly suitable for advanced computing and server applications that utilize a loosely regulated 12-V
intermediate distribution bus.
The modules incorporate a comprehensive list of features. They include on/off inhibit and margin up/down
controls. A differential remote output voltage sense ensures tight load regulation, and an output overcurrent and
overtemperature shutdown protect against most load faults. The programmable under-voltage lockout allows the
turn-on and turn-off voltage thresholds to be customized.
The PTH12040W incorporates Auto-Track™. The Auto-Track feature of the PTH family allows the outputs of
multiple modules to track a common voltage during power up and power down transitions. This simplifies power
up and power down supply-voltage sequencing in a power supply system.
The modules use double-sided surface mount construction to provide a low profile and compact footprint.
Package options include both through-hole and surface mount configurations.
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.
Auto-Track, POLA, TMS320 are trademarks of Texas Instruments.
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 © 2004–2005, Texas Instruments Incorporated
TI [ TEXAS INSTRUMENTS ]
