Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPTH08T230WAZT

PTH08T230W, PTH08T231W

www.ti.com

SLTS265L –NOVEMBER 2005– REVISED AUGUST 2011

6-A, 4.5-V to 14-V INPUT, NON-ISOLATED,

WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TurboTrans™

Check for Samples: PTH08T230W, PTH08T231W

FEATURES

• Up to 6-A Output Current

• TurboTrans™ Technology

• 4.5-V to 14-V Input Voltage • Designed to meet Ultra-Fast Transient

Requirements up to 300 A/µs

• Wide-Output Voltage Adjust (0.69 V to 5.5 V)

• SmartSync Technology

• ±1.5% Total Output Voltage Variation

• Efficiencies up to 95%

APPLICATIONS

• Output Overcurrent Protection

• Complex Multi-Voltage Systems

(Nonlatching, Auto-Reset)

• Microprocessors

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

• Bus Drivers

• Safety Agency Approvals

– UL/IEC/CSA-C22.2 60950-1

• Prebias Startup

• On/Off Inhibit

• Differential Output Voltage Remote Sense

• Adjustable Undervoltage Lockout

• Auto-Track™ Sequencing

• Ceramic Capacitor Version (PTH08T231W)

DESCRIPTION

The PTH08T230/231W is the higher input voltage (4.5V to 14V) version of the PTH04T230/231W (2.2V to 5.5V),

6-A rated, non-isolated power module. This regulator represents the 2nd generation of the PTH series of power

modules which include a reduced footprint and improved features. The PTH08T231W is optimized to be used in

applications requiring all ceramic capacitors.

Operating from an input voltage range of 4.5V to 14V, the PTH08T230/231W requires a single resistor to set the

output voltage to any value over the range, 0.69V to 5.5V. The wide input voltage range makes the

PTH08T230/231W particularly suitable for advanced computing and server applications that use a loosely

regulated 8-V to 12-V intermediate distribution bus. Additionally, the wide input voltage range increases design

flexibility by supporting operation with tightly regulated 5-V, 8-V, or 12-V intermediate bus architectures.

The module incorporates a comprehensive list of features. Output over-current and over-temperature shutdown

protects against most load faults. A differential remote sense ensures tight load regulation. An adjustable

under-voltage lockout allows the turn-on voltage threshold to be customized. Auto-Track™ sequencing is a

popular feature that greatly simplifies the simultaneous power-up and power-down of multiple modules in a

power system.

The PTH08T230/231W includes new patent pending technologies, TurboTrans™ and SmartSync. The

TurboTrans feature optimizes the transient response of the regulator while simultaneously reducing the quantity

of external output capacitors required to meet a target voltage deviation specification. Additionally, for a target

output capacitor bank, TurboTrans can be used to significantly improve the regulator's transient response by

reducing the peak voltage deviation. SmartSync allows for switching frequency synchronization of multiple

modules, thus simplifying EMI noise suppression tasks and reduces input capacitor RMS current requirements.

Double-sided surface mount construction provides a low profile and compact footprint. Package options include

both through-hole and surface mount configurations that are lead (Pb) - free and RoHS compatible.

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.

2TurboTrans, 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 (39 pages)

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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com 6-A, 4.5-V to 14-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TurboTrans™ Check for Samples: PTH08T230W, PTH08T231W FEATURES 1 • • • • • • 2 • • • • • • • • Up to 6-A Output Current 4.5-V to 14-V Input Voltage Wide-Output Voltage Adjust (0.69 V to 5.5 V) ±1.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com PTH08T231W - Ceramic Capacitor Version SmartSync TurboTrans Auto−Track 9 VI 2 Track 8 1 TT +Sense SYNC Vi Vo PTH08T231W Inhibit 10 INH/UVLO −Sense GND 3 CI 300 uF (Required) GND VoAdj 7 RSET 1% 0.05 W (Required) (Note A) 5 RTT 1% 0.05W (Optional) +Sense 4 Vo 6 CO [B] 200 µF Ceramic (Required) L O A D −Sense GND A. RSET required to set the output voltage to a value higher than 0.69 V.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com ORDERING INFORMATION For the most current package and ordering information, see the Package Option Addendum at the end of this data sheet, or see the TI website at www.ti.com.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com ELECTRICAL CHARACTERISTICS TA =25°C, VI = 5V, VO = 3.3V, CI = 330µF, CO1 = 200µF ceramic, CO2 = 100µF, IO = IOmax (unless otherwise stated) PARAMETER TEST CONDITIONS PTH08T230W MIN IO Output current Over VO range 25°C, natural convection Input voltage range Output adjust range Over IO range 4.5 14 (1) 1.2 < VO ≤ 3.6 4.5 14 3.6 < VO ≤ 5.5 VO +1 (2) 14 Over IO range 0.69 5.5 ±1.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com ELECTRICAL CHARACTERISTICS (continued) TA =25°C, VI = 5V, VO = 3.3V, CI = 330µF, CO1 = 200µF ceramic, CO2 = 100µF, IO = IOmax (unless otherwise stated) PARAMETER TEST CONDITIONS PTH08T230W MIN fSYNC Synchronization (SYNC) frequency VSYNCH SYNC High-Level Input Voltage VSYNCL SYNC Low-Level Input Voltage tSYNC SYNC Minimum Pulse Width CI External input capacitance kHz 2 5.5 V 0.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com ELECTRICAL CHARACTERISTICS TA =25°C, VI = 5 V, VO = 3.3 V, CI = 330 µF, CO1 = 200 µF ceramic, and IO = IO max (unless otherwise stated) PARAMETER TEST CONDITIONS PTH08T231W MIN IO Output current Over VO range 25°C, natural convection 0.69 ≤ VO ≤ 1.2 VI Input voltage range Output adjust range Over IO range TYP 6 4.5 14 4.5 14 3.6 < VO ≤ 5.5 VO +1 (2) 14 Over IO range 0.69 5.5 ±1.0 ±0.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com ELECTRICAL CHARACTERISTICS (continued) TA =25°C, VI = 5 V, VO = 3.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com PTH08T230/231W (TOP VIEW) 1 10 9 2 8 7 6 5 3 4 TERMINAL FUNCTIONS TERMINAL NAME NO. DESCRIPTION VI 2 The positive input voltage power node to the module, which is referenced to common GND. VO 4 The regulated positive power output with respect to the GND. GND 3 This is the common ground connection for the VI and VO power connections. It is also the 0 Vdc reference for the control inputs.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com TYPICAL CHARACTERISTICS (1) (2) CHARACTERISTIC DATA ( VI = 12 V) EFFICIENCY vs OUTPUT CURRENT OUTPUT RIPPLE vs OUTPUT CURRENT 25 VO = 3.3 V VO − Output Voltage Ripple − VPP (mV) VO = 5 V 95 90 VO = 2.5 V 75 VO = 1.8 V 70 VO = 1.5 V 65 VO = 1.2 V 60 55 50 VO = 3.3 V VO = 2.5 V 10 5 VO = 1.8 V VO = 1.5 V VO = 2.5 V VO = 1.8 V 1 VO = 1.5 V 0.5 VO = 1.2 V VO = 1.2 V 0 Figure 1. Figure 2. Figure 3.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com TYPICAL CHARACTERISTICS (1) (2) CHARACTERISTIC DATA ( VI = 5 V) EFFICIENCY vs OUTPUT CURRENT OUTPUT RIPPLE vs OUTPUT CURRENT 10 VO = 2.5 V 95 90 85 80 VO = 1.5 V VO = 1.8 V 75 VO = 1.2 V 70 VO = 0.7 V 65 60 1.6 1.4 VO = 3.3 V 8 VO = 1.8 V PD − Power Dissipation − W VO = 3.3 V VO − Output Voltage Ripple − VPP (mV) 100 Efficiency − % POWER DISSIPATION vs OUTPUT CURRENT VO = 3.3 V VO = 2.5 V 6 4 2 VO = 1.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com APPLICATION INFORMATION ADJUSTING THE OUTPUT VOLTAGE The VO Adjust control (pin 7) sets the output voltage of the PTH08T230/231W. The adjustment range is 0.69 V to 5.5 V. The adjustment method requires the addition of a single external resistor, RSET, that must be connected directly between the VO Adjust and the –Sense pins.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com Table 2. Output Voltage Set-Point Resistor Values VO Required RSET (Ω) VO Required (V) RSET (Ω) 0.70 681 k 3.00 1.54 k 0.75 113 k 3.10 1.43 k 0.80 61.9 k 3.20 1.33 k 0.85 41.2 k 3.30 1.21 k 0.90 31.6 k 3.40 1.13 k 0.95 24.9 k 3.50 1.02 k 1.00 20.5 k 3.60 931 1.10 15.4 k 3.70 866 1.20 12.1 k 3.80 787 1.30 9.88 k 3.90 715 1.40 8.25 k 4.00 649 1.50 6.98 k 4.10 590 1.60 6.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com CAPACITOR RECOMMENDATIONS FOR THE PTH08T230/231W POWER MODULE Capacitor Technologies Electrolytic Capacitors When using electrolytic capacitors, high quality, computer-grade electrolytic capacitors are recommended. Aluminum electrolytic capacitors provide adequate decoupling over the frequency range, 2 kHz to 150 kHz, and are suitable when ambient temperatures are above -20°C.
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PTH08T230W, PTH08T231W www.ti.com SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 Output Capacitor (Required) The PTH08T231W requires a minimum output capacitance of 200 μF of ceramic type. The PTH08T230W requires a minimum output capacitance of 200 μF ceramic type. An optional 100 μF of non-ceramic, low-ESR capacitance is recommended for improved performance. See the Electrical Characteristics table for maximum capacitor limits.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com Designing for Fast Load Transients The transient response of the dc/dc converter has been characterized using a load transient with a di/dt of 2.5 A/μs. The typical voltage deviation for this load transient is given in the Electrical Characteristics table using the minimum required value of output capacitance.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com Table 3. Input/Output Capacitors(1) (continued) Capacitor Characteristics Capacitor Vendor, Type Series (Style) Working Value Voltage (µF) Quantity Output Bus (2) Max. ESR at 100 kHz Max Ripple Current at 85°C (Irms) Physical Size (mm) Input Bus No TurboTrans TurboTrans Cap Type (3) 25mΩ 3300mA 7,3×4,3 N/R (9) 1~3 C ≥ 1 (10) 7,3×4,3 N/R (9) 1~2 B≥2 (10) 2R5TPE470M7(VO≤ 1.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com TURBOTRANS TurboTrans™ Technology TurboTrans technology is a feature introduced in the T2 generation of the PTH/PTV family of power modules. TurboTrans optimizes the transient response of the regulator with added external capacitance using a single external resistor.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com PTH08T231W Type A Capacitors 12-V INPUT 5-V INPUT 40 40 30 30 Without TurboTrans Transient − mV/A 20 With TurboTrans 10 9 With TurboTrans 10 9 PTH08T231 Type A Ceramic Capacitors 8 20 PTH08T231 Type A Ceramic Capacitors 8 Figure 12. Capacitor Type A, 100 ≤ C(μF) x ESR(mΩ) ≤ 1000 (e.g.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com PTH08T230W Type B Capacitors 12-V INPUT 5-V INPUT 60 60 50 50 40 40 Without TurboTrans 30 Transient − mV/A 20 With TurboTrans 10 9 8 20 10 9 8 7 With TurboTrans C − Capacitance − µF 10000 3000 4000 5000 6000 2000 1000 300 400 500 600 700 100 10000 3000 4000 5000 6000 2000 1000 300 400 500 600 700 200 100 7 200 Transient − mV/A 30 Without TurboTrans C − Capacitance − µF Figure 14.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com PTH08T230W Type C Capacitors 12-V INPUT 5-V INPUT 60 60 50 50 40 40 Without TurboTrans 30 Transient − mV/A 20 With TurboTrans 10 9 8 20 10 9 8 With TurboTrans C − Capacitance − µF C − Capacitance − µF Figure 16. Capacitor Type C, 5000 < C(μF) x ESR(mΩ) ≤ 10,000 (e.g.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com TurboTrans TM RTT 0 kW +Sense AutoTrack SYNC TT VI +Sense VI VO VO PTH08T230W INH/UVLO GND −Sense VoAdj CI 330 mF (Required) RSET 1% 0.05 W CO1 CO2 200 mF Ceramic (Required) 1200 mF Type B −Sense GND A. GND The value of RTT must be calculated using the total value of output capacitance. Figure 18.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com UNDERVOLTAGE LOCKOUT (UVLO) The PTH08T230/231W power modules incorporate an input undervoltage lockout (UVLO). The UVLO feature prevents the operation of the module until there is sufficient input voltage to produce a valid output voltage.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com Soft-Start Power Up The Auto-Track feature allows the power-up of multiple PTH/PTV modules to be directly controlled from the Track pin. However in a stand-alone configuration, or when the Auto-Track feature is not being used, the Track pin should be directly connected to the input voltage, VI (see Figure 20). VI (5 V/div) Track PTH08T230W VI VO (2 V/div) 2 VI CI GND II (2 A/div) 3 GND Figure 20.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com Output On/Off Inhibit For applications requiring output voltage on/off control, the PTH08T230/231W incorporates an output Inhibit control pin. The inhibit feature can be used wherever there is a requirement for the output voltage from the regulator to be turned off.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com Smart Sync Smart Sync is a feature that allows multiple power modules to be synchronized to a common frequency. Driving the Smart Sync pins with an external oscillator set to the desired frequency, synchronizes all connected modules to the selected frequency.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com Smart Sync Considerations Operating the PTH08T230W with a low duty cycle may increase the output voltage ripple due to pulse skipping of the PWM controller. When operating at the nominal switching frequency, input voltages greater than (VO × 11) may cause the output voltage ripple to increase (typically 2×). Synchronizing to a higher frequency and operating with a low duty cycle may impact output voltage ripple.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com volt-for-volt basis. By connecting the Track pin of a number of these modules together, the output voltages follow a common signal during power up and power down. The control signal can be an externally generated master ramp waveform, or the output voltage from another power supply circuit (3). For convenience, the Track input incorporates an internal RC-charge circuit.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com RTT U1 AutoTrack TurboTrans +Sense VI = 12 V VI VO PTH08T210W VO 1 = 3.3V Inhibit / UVLOProg –Sense VoAdj GND + CO 1 CI 1 U3 RSET1 1.21 kW 8 VCC 7 SENSE 5 RESET 2 RESIN TL7712A 1 REF 6 RESET 3 RTT U2 CT AutoTrack GND Smart Sync 4 CREF 0.1 mF CT 2.2 mF RRST 10 kW VI TurboTrans +Sense PTH08T230W VO VO 2 = 1.8V Inhibit / UVLOProg –Sense GND VoAdj + CO 2 CI 2 RSET2 4.75 kW Figure 27.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com Prebias Startup Capability 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. This often occurs in complex digital systems when current from another power source is backfed through a dual-supply logic component, such as an FPGA or ASIC.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com 3.3 V Track VI = 5 V +Sense Vo = 2.5 V VI VO PTH08T230W Io Inhibit GND Vadj -Sense VCCIO VCORE + CI 330 mF RSET 2.37 kW CO 200 mF ASIC Figure 31.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.
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PTH08T230W, PTH08T231W SLTS265L – NOVEMBER 2005 – REVISED AUGUST 2011 www.ti.com REVISION HISTORY Changes from Revision J (JUNE 2009) to Revision K • Page Changed from: "When using the PTH08T231W without the TurboTrans feature, the maximum amount of capacitance is TBD μF of ceramic type." to: "When using the PTH08T231W without the TurboTrans feature, the maximum amount of capacitance is 5000 μF of ceramic type." .........................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 17-Aug-2011 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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