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DESCRIPTION

PTV08040W

SLTS257A – SEPTEMBER 2005 – REVISED JANUARY 2007

50-A, 8-V to 14-V INPUT, NON-ISOLATED, WIDE-OUTPUT

ADJUST, VERTICAL POWER MODULE

• Advanced Computing and Server Applications

• 50-A Output Current

• 8-V to 14-V Input Voltage

• Wide-Output Voltage Adjust (0.8 V to 3.6 V)

• Efficiencies up to 95%

• On/Off Inhibit

• Differential Output Sense

• Output Overcurrent Protection

(Nonlatching, Auto-Reset)

• Overtemperature Protection

• Auto-Track™ Sequencing

• Start Up Into Output Prebias

• Operating Temperature: –40°C to 85°C

• Multi-Phase, Switch-Mode Topology

• Programmable Undervoltage Lockout (UVLO)

• Safety Agency Approvals:

UL/IEC/CSA-22.2 60950-1

The PTV08040W is a high-performance 50-A rated, non-isolated, power module, that uses the latest multi-phase

switched-mode topology. This provides a small, ready-to-use module, that can power the most densely

populated multiprocessor systems. The PTV08040W is produced in a 21-pin, single in-line pin (SIP) package.

The SIP footprint minimizes board space, and offers an alternate package option for space conscious

applications. The modules use double-sided surface mount construction to provide a low profile and compact

footprint.

Operating from an input voltage range of 8 V to 14 V, the PTV08040W requires a single resistor to set the

output voltage to any value over the range, 0.8 V to 3.6 V. The wide input voltage range makes the PTV08040W

particularly suitable for advanced computing and server applications that utilize a loosely regulated intermediate

distribution bus of 8 V to 14 V.

The PTV08040W incorporates Auto-Track™ sequencing. The Auto-Track feature of the PTH and PTV 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 module incorporates a comprehensive list of features. They include on/off inhibit, a differential remote output

voltage sense which ensures tight load regulation, and an output overcurrent and overtemperature shutdown to

protect against load faults. The programmable undervoltage lockout allows the turn-on and turn-off voltage

thresholds to be customized.

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, TMS320 are trademarks of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2005–2007, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.