PTH12020WAST

PTH12020W/L www.ti.com ............................................................................................................................................................. SLTS208I – MAY 2003 – REVISED MARCH 2009 18-A, 12-V INPUT NON-ISOLATED WIDE-OUTPUT ADJUST POWER MODULE FEATURES APPLICATIONS • Up to 18 A Output Current • 12-V Input Voltage • Wide-Output Voltage Adjust (1.2 V to 5.5 V/(0.8 V to 1.8 V) • Efficiencies up to 95% • 195 W/in3 Power Density • On/Off Inhibit • Output Voltage Sense • Pre-Bias Startup • Under-Voltage Lockout • Auto-Track™ Sequencing • Margin Up/Down Controls • Output Over-Current Protection (Non-Latching, Auto-Reset) • Over-Temperature Protection • Operating Temperature: –40°C to 85°C • Point-of-Load Alliance (POLA™) Compatible • Safety Agency Approvals: UL/IEC/CSA-22.2 60950-1 • 1 2 Complex multi-voltage, multi-processor systems NOMINAL SIZE = 1.5 in x 0.87 in (38,1 mm x 22,1 mm) DESCRIPTION The PTH12020 series of non-isolated power modules offers OEM designers a combination of high performance, small footprint, and industry leading features. As part of a new class of power modules, these products provide designers with the flexibility to power the most complex multi-processor digital systems using off-the-shelf catalog parts. The series employs double-sided surface mount construction and provides highperformance step-down power conversion for up to 18A of output current from a 12-V input bus voltage. The output voltage of the W-suffix parts can be set to any value over the range, 1.2V to 5.5V. The L-suffix parts have an adjustment range of 0.8V to 1.8V. The output voltage is set using a single resistor. This series includes Auto-Track™ sequencing. Auto-Track sequencing simplifies the task of supply voltage sequencing in a power system by enabling modules to track each other, or any external voltage, during power up and power down. Other operating features include an on/off inhibit, output voltage adjust (trim), margin up/down controls, and the ability to start up into an existing output voltage or prebias. For improved load regulation, an output voltage sense is provided. A non-latching over-current trip and overtemperature shutdown feature protects against load faults. Target applications include complex multivoltage, multiprocessor systems that incorporate the industry's high-speed DSPs, microprocessors and bus drivers. For start-up into a non-prebiased output, review page 14 in the Application Information section. For start-up into a prebiased output, review page 18 in the Application Information section. 1 2 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. 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 © 2003–2009, Texas Instruments Incorporated PTH12020W/L SLTS208I – MAY 2003 – REVISED MARCH 2009 ............................................................................................................................................................. www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. STANDARD APPLICATION Track Margin Down Margin Up 10 9 8 1 2 VIN 7 PTH12020x (T o p V i ew) 3 4 5 VO Sense Inhibit + RSET CIN 560 mF (Required) VOUT 6 + C OUT 330 mF (Optional) L O A D GND GND ORDERING INFORMATION For the most current package and ordering information, see the Package Option Addendum at the end of this datasheet, or see the TI website at www.ti.com ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range unless otherwise noted (1) UNIT Vtrack Track input –0.3V to VI +0.3 V TA Operating temperature range Over VI Range Twave Wave solder temperature Surface temperature of module body or pins (5 seconds maximum) Treflow Solder reflow temperature Surface temperature of module body or pins Tstg Storage temperature Storage temperature of module removed from shipping package Tpkg Packaging temperature Shipping Tray or Tape and Reel storage or bake temperature 45°C Mechanical shock Per Mil-STD-883D, Method 2002.3 1 msec, 1/2 Sine, mounted 500 G Mechanical vibration Mil-STD-883D, Method 2007.2 20-2000 Hz 20 G Weight Flammability (1) (2) 2 –40C to 85C PTH12020WAH 260°C (2) PTH12020WAS 235°C (2) PTH12020WAZ 260°C (2) PTH12020WAD –55°C to 125°C 7 grams Meets UL 94V-O Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. During soldering of package version, do not elevate peak temperature of the module, pins or internal components above the stated maximum. Submit Documentation Feedback Copyright © 2003–2009, Texas Instruments Incorporated Product Folder Link(s) :PTH12020W/L PTH12020W/L www.ti.com ............................................................................................................................................................. SLTS208I – MAY 2003 – REVISED MARCH 2009 ELECTRICAL CHARACTERISTICS TA = 25°C, VI =12 V, VO = 3.3 V, CI = 560 µF, CO = 0 µF, and Io = Iomax (unless otherwise noted) PARAMETER PTH12020W TEST CONDITIONS MIN TYP MAX 60C, 200 LFM airflow 0 18 (1) 25C, natural convection 0 18 (1) UNIT IO Output current VI Input voltage range Votol Set-point voltage tolerance ΔRegtemp Temperature variation –40°C 2.5 V 1 %Vo Recovery time Vo over/undershoot –8 8.8 Over VI and Io ranges CI External input capacitance (7) (8) mV Reliability (3) mA 1 V/ms 10.4 9.2 0.5 0.24 260 0 Ceramic 0 Per Bellcore TR-332, 50% stress, TA = 40°C, ground benign V mA 380 kHz µF (5) Non-ceramic 4 320 V mA 5 560 Capacitance value µA (3) –0.2 Equivalent series resistance (non-ceramic) (6) 70 Open (4) Input low voltage, Referenced to GND Switching frequency (5) µSec 9.7 VI decreasing ƒs (3) (4) A 70 –0.13 VI increasing Inhibit (pin 3) to GND, Track (pin 8) open (1) (2) 30 ±5% Input low current, Pin 3 to GND MTBF V RSET = 2.0 kΩ, Vo = 3.3 V Input standby current External output capacitance mV %Vo RSET = 4.32 kΩ, Vo = 2.5 V II CO V %Vo 5.5 95% Input high voltage, Referenced to GND VIL 13.2 ±2 (2) ±3 (2) RSET = 280 Ω, Vo = 5.0 V A 330 (6) 9900 (7) 300 (8) 5.3 µF mΩ 106 Hrs See SOA curves or consult factory for appropriate derating. The set-point voltage tolerance is affected by the tolerance and stability of RSET. The stated limit is unconditionally met if RSET has a tolerance of 1%, with 100 ppm/°C or better temperature stability. A small low-leakage (