PT6460 TI | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 10

Technical content

Features

  • 5 V Input
  • 14 A Output Current
  • Low-Profile (8mm)
  • DSP Compatible
  • >90 % Efficiency
  • Adjustable Output Voltage
  • On/Off Inhibit
  • Pre-Bias Start-up Capability Pin-Out Information * Denotes negative logic: Open = Output enabled Ground = Output disabled

Description

The PT6460 Excalibur™ series of integrated switching regulators (ISRs) combines outstanding power density with a comprehensive list of features. They are an ideal choice for applications where board space is a premium and performance cannot be compromised. These modules provide a full 14 A of output current, yet are housed in a low-profile, 12-pin, package that is almost half the size of the previous product generation. The integral copper case construction requires no h eatsink, and offers the advantages of solderability and a small footprint (0.64 in² for suffix ‘N’). Both through-hole and surface mount pin configurations are available. The PT6460 series operates from a 5-V input bus and provides a convenient point-of-load power source for the industry’s latest high-performance DSPs and microprocessors. The series includes output voltage options as low as 1.0 VDC. Other features include external output voltage adjustment, on/off inhibit, pre-bias startup, short circuit protection, and an output remote sense. PT Series Suffix (PT1234x) Case/Pin Order Package Configuration Suffix Code Vertical N (EPH) Horizontal A (EPJ) SMD C (EPK) (Reference the applicable package code draw- ing for the dimensions and PC board layout)

  • Over-Current Protection
  • Output Remote Sense
  • Optional Output Capacitor
  • Small Footprint (0.64 in², Suffix ‘N’)
  • Surface Mount Compatible
  • IPC Lead Free 2 PT6460 Vo Adjust VIN 5–8 9–102–4 L O A D C IN 470 µF (Required) + C OUT 330 µF (Optional) Inhibit GND GND VOUT +VSENSE

For technical support and more information, see inside back cover or visit www.ti.com PT6460 Series 14-A 5-V Input Adjustable Integrated Switching Regulator Specifications (Unless otherwise stated, T a =25 °C, Vin =5 V, Cin =470 µF, Cout =0 µF, and Io =Iomax) PT6460 SERIES Characteristics Symbols Conditions Min Typ Max Units Output Current I o Vin =5 V 0 — 14 A Input Voltage Range V in Over Io range 4.5 — 5.5 V Set-Point Voltage Tolerance V o tol — — ±2 %V o Temperature Variation ∆Regtemp –40 °C <Ta < +85 °C — ±0.5 — %V o Line Regulation ∆Regline Over Vin range — ±10 — mV Load Regulation ∆Regload Over Io range — ±12 — mV Total Output Variation ∆Regtot Includes set-point, line, load, ——± 3% V o–40 °C ≤ Ta ≤ +85 °C Efficiency η Io =10 A PT6461 (3.3 V) — 94 — PT6462 (2.5 V) — 93 — PT6463 (2.0 V) — 91 — PT6465 (1.5 V) — 88 — PT6466 (1.2 V) — 86 — PT6467 (1.0 V) — 84 — Vo Ripple (pk-pk) V r 20MHz bandwidth— 25 — mVpp Transient Response 1 A/µs load step, 50 to 100 % I omax, Cout =330 µF ttr Recovery Time — 50 — µSec ∆Vtr Vo over/undershoot — 100 — mV Over-Current Threshold I TRIP Reset, followed by auto-recovery — 27.5 — A Output Voltage Adjust V o adj — ±15 (1) —% Switching Frequency ƒ s Over Vin and Io ranges — 300 — kHz Inhibit Control (pin1) Referenced to GND (pins 5–8) Input High Voltage V IH Vin –0.5 — Open (2) V Input Low Voltage VIL –0.2 — 0.8 Input Low Current IIL Pin 1 to GND — –10 — µA Inhibit Input Current I in inhibit Pin 1 to GND — 5 — mA External Input Capacitance C in 470 (3) ——µ F External Output Capacitance C out 0 330 (4) (5) 3,300 µF Operating Temperature Range T a Over Vin range –40 (5) —8 5 (6) °C Solder Reflow Temperature T reflow Surface temperature of module pins or case — — 215 (7) °C Storage Temperature T s — –40 — 125 °C Reliability MTBF Per Bellcore TR-332 8.0 — — 10 6 Hrs50 % stress, Ta =40 °C, ground benign Mechanical Shock Mil-STD-883D, Method 2002.3 — 500 — GHalf Sine, mounted to a fixture Mechanical Vibration Mil-STD-883D, Method 2007.2, Suffix N — 20 (8) — G20-2000 Hz, PCB mounted Suffixes A, C — 20 (8) — Weight — — — 10 — grams Flammability — Materials meet UL 94V-0 Notes: (1) This is a typical value. For the adjustment limits of a specific model consult the related application note on output voltag e adjustment. (2) The Inhibit control (pin 1) has an internal pull-up, and if left open-circuit the module will operate when input power is ap plied. A small low-leakage (<100 nA) MOSFET is recommended to control this input. See application notes for more information. (3) A 470 µF electrolytic input capacitor is required for proper operation. The capacitor must be rated for a minimumm of 0.7 Ar ms of ripple current. (4) An external output capacitor is not required for basic operation. Adding 330 µF of distributed capacitance at the load will improve the transient response. (5) For operation below 0 °C, C OUT should have stable characteristics. Use either low-ESR tantalum or Oscon® type capacitors. (6) See SOA curves or consult factory for the appropriate derating. (7) During solder reflow of SMD package version do not elevate the module case, pins, or internal component temperature above a peak of 215 °C. For further guidance refer to the application note, “Reflow Soldering Requirements for Plug-in Power Surface Mount Products,” (SLTA 051). (8) The case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable p ackage outline drawing. SL TS178B - JANUARY 2003 - REVISED JUNE 2003

For technical support and more information, see inside back cover or visit www.ti.com Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the ISR. Efficiency vs Output Current Power Dissipation vs Output Current Performance Data; Vin =5.0 V (See Note A) Output Ripple vs Output Current PT6460 Series 14-A 5-V Input Adjustable Integrated Switching Regulator Pin Descriptions VIN: The positive supply voltage input for the module with respect to the common GND. VOUT: This is the regulated output voltage from the mod- ule with respect to the common GND. GND: The common node to which the input, output, and external control signals are referenced. Inhibit*: This is an open-collector (open-drain) negative logic input that is referenced to GND. Pulling this pin low disables the module’s output voltage. If Inhibit* is left open-circuit, the output will be active whenever a valid input source is applied. Typical Characteristics Vo Adjust: This pin is used to trim the output voltage over a typical range of ±15 % of nominal. The adjust- ment method uses an external resistor. The resistor is connected from V o Adjust to either the GND or (+)Sense, in order to adjust the output either up or down, respec- tively. Consult the related application note for the adjust limits on a specific part. Vsense: An external remote sense input is provided to allow the regulation circuit to compensate for voltage drop between the module and the load. For optimal voltage accuracy Vsense should be connected to V OUT. If desired, Vsense may also be left open circuit. 100 02468 1 0 1 2 1 4 Iout (A ) Efficiency - % PT6461 PT6462 PT6463 PT6464 PT6465 PT6466 PT6467 02468 1 0 1 2 1 4 Iout (A ) Ripple - mV PT6462 PT6463 PT6464 PT6461 PT6465 PT6466 PT6467 02468 1 0 1 2 1 4 Iout (A ) Pd - Watts SL TS178B - JANUARY 2003 - REVISED JUNE 2003

For technical support and more information, see inside back cover or visit www.ti.com PT6460 Series Safe Operating Curve, Vin =5 V (See Note B) Typical Characteristics 02468 1 0 1 2 1 4 Iout (A ) Ambient Temperature (°C) 200LFM 120LFM 60LFM Nat conv Airflow 02468 1 0 1 2 1 4 Iout (A ) Ambient Temperature (°C) 200LFM 120LFM 60LFM Nat conv Airflow PT6461; VOUT =3.3 V PT6467; VOUT =1 V Note B: SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating t emperatures. 14-A 5-V Input Adjustable Integrated Switching Regulator SL TS178B - JANUARY 2003 - REVISED JUNE 2003

For technical support and more information, see inside back cover or visit www.ti.com Application Notes Table 2-1: Input/Output Capacitors Capacitor Recommendations for the PT6460 & PT6470 Regulator Series Input Capacitor: The recommended input capacitor is determined by a minimum of 470 µF capacitance and 700 mA minimum ripple current rating. Ripple current and <100 m Ω equivalent series resistance (ESR) values are the major considerations, along with temperature, when when designing with different types of capacitors. Tantalum capacitors have a recommended minimum voltage rating of 2 × (maximum DC voltage + AC ripple). This is necessary to insure reliability for input voltage bus applications. Output Capacitors (Optional): The ESR of the capacitors should be less than 150 m Ω . Electrolytic capacitors have marginal ripple performance at frequencies greater than 400 kHz but excellent low fre- quency transient response. Above the ripple frequency, ceramic capacitors are necessary to improve the transient response and reduce any high frequency noise components apparent during higher current excursions. Preferred low ESR type capacitor part numbers are identified in Table 2-1. PT6460 & PT6470 Series Tantalum Capacitors( Optional Output Capacitors) Tantalum type capacitors can be used for the output but only the AVX TPS, Sprague 593D/594/595, or Kemet T495/T510 series. Th ese capacitors are recommended over many other tantalum types due to their higher rated surge, power dissipation, and ripple current capability. As a caution the TAJ series by AVX is not recommended. This series has considerably higher ESR, reduced power dissipation, and lower ripple current capability. The TAJ series is less reliable than the AVX TPS series when deter- mining power dissipation capability. Tantalum or Oscon® types are recommended for applications where ambient temperatures fall below 0 °C. Capacitor Table Table 2-1 identifies the characteristics of capacitors from a number of vendors with acceptable ESR and ripple current (rms) ratings. The number of capacitors required at both the input and output buses is identified for each capacitor type. This is not an extensive capacitor list. Capacitors from other vendors are available with comparable specifications. Those listed are for guidance. The RMS ripple current rating and ESR (at 100kHz) are critical parameters necessary to insure both optimum regulator performance and long capacitor life. /rodneVroticapaC seireS scitsiretcarahCroticapaCy titnauQ gnikroW egatloV )Fµ(eulaVt nelaviuqE)RSE( ecnatsiseRseireS elppiRmumixaM C°501@tnerruC )smrI( eziSlacisyhP )mm( tupnI suB tuptuO suB rebmuNtraProdneV cinosanaP )laidaR(CF )TMS(KF V61 V01 V52 V53 074 065 074 074 90.0 Ω 90.0 Ω 80.0 Ω 60.0 Ω Am557 Am557 Am058 Am0011 5.21x01 01 × 5.21 2.01x01 5.21 × 5.31 174C1CFUEE 165A1CFUEE P174E1KFVEE Q174V1KFVEE noc-imehCdetinU VXL/ZXL XF V61 V01 V01 074 086 086 090.0 Ω 090.0 Ω 510.0 Ω Am067 Am077 Am5374 5.21x01 5.21x01 01 × 5.01 LL21X01M174BV61ZXL LL21X01M186BV01ZXL M086XF01 MP/LPnocihciN )TMS(seireSXN V61 V61 V01 033 074 033 21.0 ÷ 60.0=2 Ω 90.0 Ω 420.0 Ω Am547 Am077 Am0773 5.21x01 51x01 8x01 6HPM133C1MPU 6HPM174C1MPU SG1RACM033A1XNP PSnoc-sO-oynaS )TMS(PVS V01 V01 074 065 510.0 Ω 310.0 Ω Am0054> Am0025> 01 × 5.01 11 × 7.21 M074PS01 M065PVS01 mulatnaTXVA )TMS(SPT V01 V01 074 074 540.0 Ω 060.0 Ω Am3271 Am6281 L3.7 × W7.5 × H1.4 5400R010M774ESPT 0600R010M774VSPT remyloPtemeK mulatnaT (035T/025T) TMS V01 V01 033 033 040.0 Ω 510.0 Ω Am0081 Am0083> W3.4 × L3.7 × H0.4 SA010M733X025T SA010M733X035T mulatnaTeugarpS (D495) TMS V010 860 90.0 Ω Am0661L 2.7 × W6 × H1.4

11 T 2R0100X786D595

For technical support and more information, see inside back cover or visit www.ti.com Application Notes continued PT6460, PT6470 Series Va (req.d) 2.300 1.8 k Ω 2.250 7.1 k Ω 2.200 15.1 k Ω 2.150 28.4 k Ω 2.100 55.1 k Ω 2.3 kΩ 2.050 135.0 k Ω 7.7 kΩ 2.000 15.9 k Ω 1.950 (205.0) kΩ 29.5 kΩ 1.900 (85.1) kΩ 56.7 kΩ 1.850 (45.1) kΩ 138.0 kΩ 1.800 (25.1) kΩ 1.1 kΩ 1.750 (13.1) kΩ (169.0) kΩ 6.3 kΩ 1.700 (5.1) kΩ (66.9) kΩ 14.1 kΩ 1.650 (32.9) kΩ 27.2 kΩ 1.600 (15.9) kΩ 53.2 kΩ 1.550 (5.7) kΩ 131.0 kΩ 1.500 1.8 k Ω 1.475 (239.0) kΩ 4.2 kΩ 1.450 (102.0) kΩ 7.1 kΩ 1.425 (56.4) kΩ 10.7 kΩ 1.400 (33.7) kΩ 15.1 kΩ 1.375 (20.0) kΩ 20.8 kΩ 1.350 (10.9) kΩ 28.4 kΩ 1.325 (4.4) kΩ 39.1 kΩ 1.300 55.1 k Ω 2.3 kΩ 1.275 81.8 k Ω 4.8 kΩ 1.250 135.0 k Ω 7.7 kΩ 1.225 295.0 k Ω 11.4 kΩ 1.200 15.9 k Ω 1.175 (125.0) kΩ 21.7 kΩ 1.150 (45.1) kΩ 29.5 kΩ 1.125 (18.4) kΩ 40.4 kΩ 1.100 (5.1) kΩ 56.7 kΩ 1.075 83.9 k Ω 1.050 138.0 k Ω 1.025 302.0 k Ω 1.000 0.975 (46.5) kΩ 0.950 (5.7) kΩ Table 3-2 ISR ADJUSTMENT RESISTOR VALUES Series Pt. Nos. 5.0V Bus: PT6461 PT6462 PT6463 PT6464 PT6465 PT6466 PT6467 3.3V Bus: N/A PT6472 PT6473 PT6474 PT6475 PT6476 PT6477 Va (req.d) 3.60 2.3 k Ω 3.55 7.7 k Ω 3.50 15.9 k Ω 3.45 29.5 k Ω 3.40 56.7 k Ω 3.35 138.0 k Ω 3.30 3.25 (475.0) kΩ 3.20 (220.0) kΩ 3.15 (135.0) kΩ 3.10 (92.4) kΩ 3.05 (66.9) kΩ 3.00 (49.9) kΩ 2.95 (37.5) kΩ 2.90 (28.6) kΩ 2.85 (21.6) kΩ 2.80 (15.9) kΩ 3.6 kΩ 2.75 (11.3) kΩ 9.3 kΩ 2.70 (7.4) kΩ 17.9 kΩ 2.65 (4.1) kΩ 32.2 kΩ 2.60 (1.3) kΩ 60.7 kΩ 2.550 146.0 k Ω 2.500 2.450 See note 4 (328.0) kΩ 2.400 (146.0) kΩ 2.350 (85.7) kΩ 2.300 (55.3) kΩ 2.250 (37.2) kΩ 2.200 (25.0) kΩ 2.150 (16.4) kΩ 2.100 (9.9) kΩ 2.050 (4.8) kΩ 2.000 (0.8) kΩ R1 = Black R 2 = (Blue)

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. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third–party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright  2003, Texas Instruments Incorporated