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12-A, 12-V INPUT NON-ISOLATED WIDE-OUTPUT

FEATURES APPLICATIONS

NominalSize=1.37inx0.62in

(34,8mmx15,75mm)

DESCRIPTION

PTH12010W , PTH12010L

SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007

ADJUST POWER MODULE

• Complex Multivoltage, Multiprocessor

• Up to 12-A Output Current

Systems

• 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 94%

• 200 W/in

Power Density

• On/Off Inhibit

• Output Voltage Sense

• Prebias Startup

• Undervoltage Lockout

• Auto-Track™ Sequencing

• Margin Up/Down Controls

• Output Overcurrent Protection

(Nonlatching, Auto-Reset)

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

• Safety Agency Approvals:

UL/IEC/CSA-22.2 60950-1

• Point of Load Alliance (POLA™) Compatible

The PTH12010 series of non-isolated power modules that are small in size but big on performance and

flexibility. The high output current, compact footprint, and industry-leading features offers system designers a

versatile module for powering complex multi-processor digital systems.

The series employs double-sided surface mount construction and provides high-performance step-down power

conversion for up to 12 A of output current. The output voltage of the W-suffix parts can be set to any value over

the range, 1.2 V to 5.5 V. The L-suffix devices have an adjustment range of 0.8 V to 1.8 V. The output voltage is

set using a single external resistor.

This series includes Auto-Track™ sequencing. Auto-Track 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 also provided. A nonlatching overcurrent trip serves as load fault protection.

Target applications include complex multivoltage, multiprocessor systems that incorporate the industry’s

high-speed TMS320™ DSP family, 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.

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.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (27 pages)

PAGE 1
PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 12-A, 12-V INPUT NON-ISOLATED WIDE-OUTPUT ADJUST POWER MODULE FEATURES APPLICATIONS • • • • • • • • • • • • • • • • Up to 12-A Output Current 12-V Input Voltage Wide-Output Voltage Adjust (1.2 V to 5.5 V)/(0.8 V to 1.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 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 1 10 9 8 7 PTH12010x (Top View) 2 VI VO 6 3 4 5 VOSense CI RSET, 1 % (Required) + Inhibit CO 330 mF (Optional) + 560 mF (Required) GND GND A.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 ELECTRICAL CHARACTERISTICS TA = 25°C, VI = 12 V, VO = 3.3 V, CI = 560 µF, CO = 0 µF, and IO = IO max (Unless otherwise stated) PTH12010W CHARACTERISTICS CONDITIONS Io Output current 1.2 V ≤ Vo≤ 5.5 V VI Input voltage range Over Io range Vo tol Set-point voltage tolerance MIN TYP MAX 60 °C, 200 LFM airflow 0 12 (1) 25 °C, natural convection 0 12 (1) 10.8 UNIT A 13.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 ELECTRICAL CHARACTERISTICS TA = 25°C, VI = 12 V, VO = 1.8 V, CI = 560 µF, CO = 0 µF, and IO = IOmax (Unless otherwise stated) PTH12010L CHARACTERISTICS Io Output current 0.8 V ≤ VO≤ 1.8 V VI Input voltage range Over IO range Vo tol Set-point voltage tolerance MIN TYP MAX 60 °C, 200 LFM airflow 0 12 (1) 25 °C, natural convection 0 12 (1) 10.8 UNIT A 13.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 DEVICE INFORMATION TERMINAL FUNCTIONS TERMINAL NAME NO. GND 1,7 VI DESCRIPTION This is the common ground connection for the VI and VO power connections. It is also the 0 Vdc reference for the control inputs. 2 The positive input voltage power node to the module, which is referenced to common GND. 3 The Inhibit pin is an open-collector/drain negative logic input that is referenced to GND.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 PTH12010W TYPICAL CHARACTERISTICS (VI = 12 V) (1) (2) EFFICIENCY vs LOAD CURRENT OUTPUT RIPPLE vs LOAD CURRENT POWER DISSIPATION vs LOAD CURRENT 5 100 100 VO = 3.3 V VO = 5 V VO = 1.5 V 70 Output Ripple − mV VO = 2.5 V VO = 2 V VO = 1.2 V VOUT = 2.5 V VOUT = 1.8 V VOUT = 5 V VOUT = 2 V 60 VOUT = 3.3 V 40 0 50 0 2 4 6 8 10 12 0 2 IO − Output Current − A 2 VOUT = 1.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 PTH12010L TYPICAL CHARACTERISTICS (VI = 12 V) (1) (2) EFFICIENCY vs LOAD CURRENT OUTPUT RIPPLE vs LOAD CURRENT 50 100 5 VO = 1.5 V VO = 1.8 V 40 Output Ripple − mV 80 VO = 1 V VO = 0.8 V 70 VOUT = 1 V VOUT = 0.8 V VOUT = 1.2 V 30 20 10 60 PD − Power Dissipation − W VO = 1.2 V 90 Efficiency − % POWER DISSIPATION vs LOAD CURRENT VOUT = 1.8 V VOUT = 1.5 V 4 VOUT = 1.8 V VOUT = 1.5 V 3 VOUT = 1.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 APPLICATION INFORMATION ADJUSTING THE OUTPUT VOLTAGE The VO Adjust control (pin 4) sets the output voltage of the PTH12010 product. The adjustment range is from 1.2 V to 5.5 V for the W-suffix modules, and 0.8 V to 1.8 V for L-suffix modules. The adjustment method requires the addition of a single external resistor, RSET, that must be connected directly between the VO Adjust and GND pins.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 Use Equation 1 to calculate the adjust resistor value. See Table 2 for the parameters, RS and Vmin. Table 2. Adjust Formula Parameters RSET = 10 kW x 0.8 V - RS kW VO - Vmin PARAMETER PTH12010W PTH12010L Vmin 1.2 V 0.8 V (1) Vmax 5.5 V 1.8 V RS 1.82 kΩ 7.87 kΩ Table 3. Output Voltage Set-Point Resistor Values PTH12010W VO(V) RSET (kΩ) PTH12010L VO(V) RSET (kΩ) VO RSET (kΩ) 1.2 Open 2.7 3.51 0.8 Open 1.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 CAPACITOR RECOMMENDATIONS FOR THE PTH12010 SERIES OF POWER MODULES INPUT CAPACITOR The recommended input capacitance is determined by the 560 µF minimum capacitance and 800 mArms minimum ripple current rating. A 10 µF X5R/X7R ceramic capacitor may also be added to reduce the reflected input ripple current. The ceramic capacitor should be located between the input electrolytic and the module.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 Table 4. Input/Output Capacitors (1) CAPACITOR CHARACTERISTICS CAPACITOR VENDOR, TYPE/SERIES, (STYLE) WORKING VALUE VOLTAGE (µF) MAX. ESR AT 100 kHz MAX RIPPLE CURRENT AT 85°C (lrms) QUANTITY PHYSICAL SIZE (mm) INPUT BUS OUTPUT BUS VENDOR PART NUMBER Panasonic, Aluminum 25 V 560 0.065 Ω 1205 mA 12,5 x 15 1 1 EEUFC1E561S FC, (Radial) 25 V 1000 0.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 DESIGNING FOR VERY FAST LOAD TRANSIENTS The transient response of the DC/DC converter has been characterized using a load transient with a di/dt of 1 A/µs. The typical voltage deviation for this load transient is given in the data sheet specification table using the optional value of output capacitance.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 Features of the PTH Family of Non-Isolated Wide Output Adjust Power Modules Introduction The PTH/PTV family of non-isolated, wide-output adjustable power modules are optimized for applications that require a flexible, high performance module that is small in size. Each of these products are POLA™ compatible.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 POWER-UP INTO A NON-PREBIASED OUTPUT — AUTO-TRACK™ FUNCTION The Auto-Track function is unique to the PTH/PTV family, and is available with all POLA products. Auto-Track was designed to simplify the amount of circuitry required to make the output voltage from each module power up and power down in sequence.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 Q1VDS (2 V/div) VO (2 V/div) II (2 A/div) t − Time − 40 ms/div Figure 13. Power-Up from Track Control NOTE: If a prebias condition is not present, it is highly recommended that the Track control pin be used for controlled power-up and power-down. If Track control is not used, the output voltage starts up and overshoots by as much as 10%, before settling at the output voltage setpoint.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 Typical Auto-Track Application The basic implementation of Auto-Track allows for simultaneous voltage sequencing of a number of Auto-Track compliant modules. Connecting the Track inputs of two or more modules forces their track input to follow the same collective RC-ramp waveform, and allows their power-up sequence to be coordinated from a common Track control signal.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 2 U1 Track VI = 12 V 3 Vo 1 = 3.3 V 6 VI VO PTH12050W Inhibit GND 4 1 Adjust 5 + + CI1 CO1 RSET1 2.0 kΩ 8 U3 VCC 7 SENSE RESET 2 5 RTRK # RESIN 1 3 50 Ω TL7712A REF 0.1 µF 9 Up Dn RESET 8 5 Track Sense CT 2 GND CREF 10 U2 6 CT 3.3 µF 4 VI VO PTH12060W Vo 2 = 1.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 POWER-UP INTO A PREBIASED OUTPUT — START-UP USING INHIBIT CONTROL The capability to start up into an output prebias condition is now available to all the 12-V input, PTH series of power modules. (Note that this is a feature enhancement for the many of the W-suffix products) [1]. A prebias startup condition occurs as a result of an external voltage being present at the output of a power module prior to its output becoming active.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 10 9 Up VI = 12 V 2 VI 5 Sense GND 1 7 C1 330 mF 10 9 R3 11 k0 TL7702B 8 7 R4 100 kW C5 0.1 mF PTH12010L Inhibit 3 8 VCC SENSE 5 RESET 2 RESIN 1 6 REF RESET 3 CT GND 4 R5 C6 10 k0 0.68 mF VI GND 1 7 6 Adjust 4 R1 2 kW Tra ck 2 VO PTH12020W Inhibit 3 + 8 Dn Tra ck VO1 = 3.3 V + C2 330 mF 5 Sense VO 6 Vadj 4 VO2 = 1.8 V + IO2 R1 130 W + C3 330 mF VC ORE + C4 330 mF VC CI O ASIC Figure 18.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 Remote Sense Products with this feature incorporate an output voltage sense pin, VO Sense. A remote sense improves the load regulation performance of the module by allowing it to compensate for any IR voltage drop between its output and the load. An IR drop is caused by the high output current flowing through the small amount of pin and trace resistance.
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PTH12010W, PTH12010L www.ti.com SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007 Margin Up/Down Controls The PTH12060, PTH12010, PTH12020, and PTH12030 products incorporate Margin Up and Margin Down control inputs. These controls allow the output voltage to be momentarily adjusted [1], either up or down, by a nominal 5%. This provides a convenient method for dynamically testing the operation of the load circuit over its supply margin or range.
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PTH12010W, PTH12010L www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 13-Nov-2010 Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.