PT8100 Series 40-A 3.3/5-V Input Programmable Integrated Switching Regulator SLTS157A (Revised 8/23/2002) Features • 40ADC Output Current • +3.3V or +5V Input • Low Output Voltages: 0.8V—2.7V • High Efficiency • Programmable Output: (VRM Compatible 5-bit Codes) • Multiphase Topology Description • • • • • • Output Remote Sense Short-Circuit Protection Thermal Shutdown Standby On/Off Control Space-Saving Package Solderable Copper Case Ordering Information The PT8100 Excalibur™ power modules are a family of high-output, high-efficiency, fully integrated switching regulators (ISRs), housed in a solderable 31-pin space-saving copper package. Modules are available for operation from either a 3.3V or 5V nominal input bus voltage. Each provides up to 40A of output current at output voltages as low as 0.8V. The output voltage is programmable via a 5-bit input code. The PT8100 series incorporates a state-of-the-art, 2-phase, multiple power path topology. This extends the output current range while providing superior transient response and input current ripple performance. The modules are designed for highend computing and signal processing applications, both of which demand high output currents at low supply voltages. The modules have a number of standard features to facilitate system integration. These include shortcircuit protection, thermal shutdown, standby (On/Off) control, and an output remote sense to compensate for voltage drop between the regulator and the load. In addition, the voltage programming codes are compatible with Intel’s® VRM specifications. Output Voltage Progam Range Part No. PT8101H PT8102H PT8103H PT8104H PT8105H =1.300 to =1.075 to =1.075 to =1.050 to =0.800 to 2.70V 1.85V 1.85V 1.825V 1.575V Input Bus 5V 5V 3.3V 5V 3.3V PT Series Suffix (PT1234 x ) Case/Pin Configuration Order Suffix N A C Vertical Horizontal SMD Package Code (EKH) (EKF) (EKG) (Reference the applicable package code drawing for the dimensions and PC board layout) Standard Application (See p.3 for PT8104 application schematic) PROGRAMMING PINS VID0 VID1 VID2 VID3 VID4 REMOTE SENSE VID Common 11 L1 VIN 12–16 + C1 1,500µF Required 4 3 2 1 31 PT8100 Series VOUT 23–30 (Except PT8104) 1µH C3 100µF Optional 5 + 6 C2 660µF Required 17–22 L O A D + GND GND STBY* C1 C2 = Required 1500µF electrolytic input capacitor = Required 660µF low ESR OS-Con®, or 1,200µF aluminum electrolytic Lin /C3 = Optional input filter components. 1µH input choke and 100µF electroytic capacitor. For technical support and more information, see inside back cover or visit www.ti.com/powertrends 1 PT8100 Series 40-A 3.3/5-V Input Programmable Integrated Switching Regulator Pin-Out Information (Except PT8104 –see p.3) Pin Function Pin Function Pin Function 1 VID 0 12 Vin 22 GND 2 VID 1 13 Vin 23 Vout 3 VID 2 14 Vin 24 Vout 4 VID 3 15 Vin 25 Vout 5 VID 4 16 Vin 26 Vout 6 STBY * 17 GND 27 Vout 7 Do Not Connect 18 GND 28 Vout 8 Do Not Connect 19 GND 29 Vout 9 Do Not Connect 20 GND 30 Vout 10 Do Not Connect 21 GND 31 Remote Sense 11 VID Common * For STBY pin: Open =Output Enabled VID Common =Output Disabled Voltage Programming Information (Except PT8104 –see p.3) PT8101 (VRM 8.4) VID 3 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 VID 2 VID 1 VID 0 1 1 1 1 1 0 1 0 1 1 0 0 0 1 1 0 1 0 0 0 1 0 0 0 1 1 1 1 1 0 1 0 1 1 0 0 0 1 1 0 1 0 0 0 1 0 0 0 VID 4=1 Vout (iv) 2.00 2.10 2.30 2.40 2.50 2.60 2.70 N/A N/A N/A N/A N/A N/A N/A N/A N/A VID 4=0 Vout 1.30V 1.35V 1.40V 1.45V 1.50V 1.55V 1.60V 1.65V 1.70V 1.75V 1.80V 1.85V 1.90V 1.95V 2.00V 2.05V PT8102/8103 (VRM 9.1) VID 4=1 Vout 1.075V 1.100V 1.125V 1.150V 1.175V 1.200V 1.225V 1.250V 1.275V 1.300V 1.325V 1.350V 1.375V 1.400V 1.425V 1.450V VID 4=0 Vout 1.475V 1.500V 1.525V 1.550V 1.575V 1.600V 1.625V 1.650V 1.675V 1.700V 1.725V 1.750V 1.775V 1.800V 1.825V 1.850V PT8105 (Custom Code) VID 4=1 Vout 0.800V 0.825V 0.850V 0.875V 0.900V 0.925V 0.950V 0.975V 1.000V 1.025V 1.050V 1.075V 1.100V 1.125V 1.150V 1.175V Notes: i) Logic 0 = Connect to VID Common ii) Logic 1 = Open circuit (no pull-up resistors) iii) VID3 and VID4 may not be changed while the unit is operating. iv) The output voltage of the PT8101 must not be set higher than 2.7V. 2 For technical support and more information, see inside back cover or visit www.ti.com VID 4=0 Vout 1.200V 1.225V 1.250V 1.275V 1.300V 1.325V 1.350V 1.375V 1.400V 1.425V 1.450V 1.475V 1.500V 1.525V 1.550V 1.575V PT8100 Series 40-A 3.3/5-V Input Programmable Integrated Switching Regulator Pin-Out Information Voltage Programming Information (PT8104 only) Pin Function Pin Function 1 VID 25mV 17 GND 2 VID 0 18 GND 3 VID 1 19 GND 4 VID 2 20 GND 5 VID 3 21 GND 6 STBY 22 GND 7 Do Not Connect 23 Vout 8 Do Not Connect 24 Vout 9 Do Not Connect 25 Vout 10 Do Not Connect 26 Vout 11 VID Common 27 Vout 12 Vin 28 Vout 13 Vin 29 Vout 14 Vin 30 Vout 15 Vin 31 Remote Sense 16 Vin VID 3 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 * For STBY pin: Open =Output Enabled VID Common =Output Disabled Standard Application (PT8104 only) PT8104 (VRM 8.5) VID 2 VID 1 VID 0 1 1 1 1 1 0 1 0 1 1 0 0 0 1 1 0 1 0 0 0 1 0 0 0 1 1 1 1 1 0 1 0 1 1 0 0 0 1 1 0 1 0 0 0 1 0 0 0 VID 25mV=0 Vout 1.300V 1.350V 1.400V 1.450V 1.500V 1.550V 1.600V 1.650V 1.700V 1.750V 1.800V 1.050V 1.100V 1.150V 1.200V 1.250V VID 25mV=1 Vout 1.325V 1.375V 1.425V 1.475V 1.525V 1.575V 1.625V 1.675V 1.725V 1.775V 1.825V 1.075V 1.125V 1.175V 1.225V 1.275V Notes: i) Logic 0 = Connect to VID Common ii) Logic 1 = Open circuit (no pull-up resistors) iii) VID3 and VID4 may not be changed while the unit is operating. (PT8104 only) PROGRAMMING PINS VID 25mV VID 0 VID 1 VID 2 VID 3 REMOTE SENSE VID Common 11 Lin VIN 3 2 1 31 VOUT 23–30 1µH + STBY* 4 PT8104 12–16 CIN GND 5 6 17–22 L O A D + COUT GND Cin = Required 1500µF electrolytic Cout = Required 660µF low ESR OS-Con®, or 1,200µF aluminum electrolytic L in = Optional 1µH input choke For technical support and more information, see inside back cover or visit www.ti.com 3 PT8100 Series 40-A 3.3/5-V Input Programmable Integrated Switching Regulator PT8101 /2 Specifications (Unless otherwise stated Ta =25°C, C 1 =1,500µF, C 2 =660µF, V in =5V, & Io =40A ) PT8101/2, Vin =5V Characteristics Symbols Conditions Min Output Current Io 25°C, natural convection 60°C with 200LFM airflow 0.1 0.1 (1) (1) Typ Max Units — — 38 40 A Input Voltage Range Vin Over Io Range 4.5 — 5.5 V Set-Point Voltage Tolerance Vo tol Over Vo range — ±1 ±2 %V Line Regulation ∆Reg line Over Vin range — ±5 — mV Load Regulation ∆Regload Over Io range — ±5 — mV Temperature Variation ∆Reg temp –40°C ≤T a ≤85°C — ±0.5 — %Vo Total Output Voltage Variation ∆Votot Includes set-point, line load, –40°C ≤Ta ≤ 85°C — — ±3 %V Efficiency η Io =20A Vo =2.5V Vo =1.8V Vo =1.5V Vo =1.2V — — — — 93 90 88 86 — — — — % Vo =2.5V Vo =1.8V Vo =1.5V Vo =1.2V — — — — 89 85 83 81 — — — — % mV Io =40A Vo Ripple (pk-pk) Vr 20MHz bandwidth — 25 — Transient Response (Vo =1.8V) ttr 1A/µs load step, 50% to 100% Iomax — 50 — µSec ∆Vtr Vo over/undershoot — 75 — mV ttr 1A/µs load step, 50% to 100% Iomax — 25 — µSec ∆Vtr Vo over/undershoot — 30 — mV Transient Response (Vo =1.2V) Short Circuit Threshold Io sc — 60 — A Switching Frequency ƒo Over load range 300 350 400 kHz Standby Control (pin 6) Input High Voltage Input Low Voltage Input Low Current VIH VIL I IL Referenced to GND (pins 17–22) Pin 6 to GND — -0.2 — — — 0.5 Open (2) 0.8 — Standby Input Current Iin standby Pin 6 to GND — 35 — mA External Output Capacitance C2 See application schematic 660 — 15,000 µF External Input Capacitance C1 See application schematic 1,500 — — µF Operating Temperature Range Ta Over Vin Range –40 — +85 (4) °C Storage Temperature Ts — -40 — +125 °C (5) (3) V mA Mechanical Shock Per Mil-STD-883D, Method 2002.3 1 msec, Half Sine, mounted to a fixture — 500 — G’s Mechanical Vibration Mil-STD-883D, Method 2007.2 20-2000 Hz, soldered in PCB — — 20 (6) 20 (6) — G’s — 55 — grams Weight — Vertical/Horizontal Flammability — Materials meet UL 94V-0 Vertical Horizontal Notes: (1) ISR-will operate down to no load with reduced specifications. (2) The Standby input (pin 6) has an internal pull-up. If it is left open-circuit the module will operate when input power is applied. A low-leakage MOSFET is recommended to control this input. The open-circuit voltage is nominally 5V. See application notes for interface considerations. (3) For operation below 0°C, Cout must have stable characteristics. Use either low ESR tantalum or Oscon® capacitors. (4) See safe Operating Area curves or consult factory for the appropriate derating. (5) The PT8100 regulators require a minimum of 660µF, low ESR ouput capacitance (1,200µF for standard aluminum electrolytic) for proper operation. (6) The case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing. Input Filter: The filter components L 1, and C3 are optional for most applications. The inductor must be rated to handle the projected input current. A rating of 30ADC is recommended. The capacitance C1 must be rated for a minimum of 1Arms of ripple current. For transient or dynamic load applications, additional capacitance may be required. For more information refer to the application note on capacitor recommendations for this product. 4 For technical support and more information, see inside back cover or visit www.ti.com PT8100 Series 40-A 3.3/5-V Input Programmable Integrated Switching Regulator PT8103/5 Specifications (Unless otherwise stated T a =25°C, C1 =1,500µF, C2 =660µF, Vin =3.3V, & I o = 40A ) PT8103/5, Vin =3.3V Characteristics Symbols Conditions Min Output Current Io 25°C, natural convection 60°C with 200LFM airflow 0.1 0.1 (1) (1) Typ Max Units — — 39 40 A Input Voltage Range Vin Over I o Range 3.1 — 3.6 V Set-Point Voltage Tolerance Vo tol Over V o range — ±1 ±2 %V Line Regulation ∆Reg line Over V in range — ±5 — mV Load Regulation ∆Regload Over I o range — ±5 — mV Temperature Variation ∆Reg temp –40°C ≤T a ≤85°C — ±0.5 — %Vo Total Output Voltage Variation ∆Votot Includes set-point, line, load, –40°C ≤Ta ≤ 85°C — — ±3 %V Efficiency η I o =20 Vo =1.8V Vo =1.5V Vo =1.2V Vo =0.8V — — — — 90 89 87 84 — — — — % Vo =1.8V Vo =1.5V Vo =1.2V Vo =0.8V — — — — 86 84 82 78 — — — — % mV I o =40 Vo Ripple (pk-pk) Vr 20MHz bandwidth — 25 — Transient Response (Vo =1.2V) ttr 1A/µs load step, 50% to 100% Iomax — 25 — µSec ∆Vtr V o over/undershoot — 30 — mV Short Circuit Threshold Io sc — 60 — A Switching Frequency ƒo Over load range 300 350 400 kHz Standby Control (pin 6) Input High Voltage Input Low Voltage Input Low Current VIH VIL I IL Referenced to GND (pins 17–22) Pin 6 to GND — -0.2 — — — 0.5 Open (2) 0.8 — Standby Input Current Iin standby Pin 6 to GND — 35 — mA External Output Capacitance C2 See application schematic 660 — 15,000 µF External Input Capacitance C1 See application schematic 1,500 — — µF Operating Temperature Range Ta Over V in Range –40 — +85 (4) °C Storage Temperature Ts — -40 — +125 °C G’s (5) (3) Mechanical Shock Per Mil-STD-883D, Method 2002.3 1 msec, Half Sine, mounted to a fixture — 500 — Mechanical Vibration Mil-STD-883D, Method 2007.2 20-2000 Hz, soldered in PCB — — 20 (6) 20 (6) — — 55 — Weight — Vertical/Horizontal Flammability — Materials meet UL 94V-0 Vertical Horizontal V mA G’s grams Notes: (1) ISR-will operate down to no load with reduced specifications. (2) The Standby input (pin 6) has an internal pull-up. If it is left open-circuit the module will operate when input power is applied. A low-leakage MOSFET is recommended to control this input. The open-circuit voltage is nominally 5V. See application notes for interface considerations. (3) For operation below 0°C, Cout must have stable characteristics. Use either low ESR tantalum or Oscon® capacitors. (4) See safe Operating Area curves or consult factory for the appropriate derating. (5) The PT8100 regulators require a minimum of 660µF, low ESR ouput capacitance (1,200µF for standard aluminum electrolytic) for proper operation. (6) The case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing. Input Filter: The filter components L 1 and C3 are optional for most applications. The inductor must be rated to handle the projected input current. A rating of 30ADC is recommended. The input capacitance, C1 must be rated for a minimum of 1Arms of ripple current. For transient or dynamic load applications, additional capacitance may be required. For more information refer to the application note on capacitor recommendations for this product. For technical support and more information, see inside back cover or visit www.ti.com 5 PT8100 Series 40-A 3.3/5-V Input Programmable Integrated Switching Regulator PT8104 Specifications (Unless otherwise stated Ta =25°C, C1 =1,500µF, C 2 =660µF, V in =5V, Vo =1.8V, & Io =40A ) PT8104, Vin =5V Characteristics Symbols Conditions Min Output Current Io 25°C, natural convection 60°C with 200LFM airflow 0.1 0.1 (1) (1) Typ Max Units — — 38 40 A Input Voltage Range Vin Over Io Range 4.5 — 5.5 V Set-Point Voltage Tolerance Vo tol Over Vo range — ±1 ±2 %V Line Regulation ∆Reg line Over Vin range — ±10 — mV Load Regulation (Droop) ∆Regload Over Io range — 1.5 — mV/A Temperature Variation ∆Reg temp –40°C ≤T a ≤85°C — ±0.5 — %Vo Total Output Voltage Variation ∆Votot Includes set-point, line, load, –40°C ≤Ta ≤ 85°C, pin 31 to GND — — 75 (2) mV Efficiency η Io =15A Vo =1.8V Vo =1.5V Vo =1.2V — — — 90 88 87 — — — % Io =40A Vo =1.8V Vo =1.5V Vo =1.2V — — — 85 82 80 — — — % mV Vo Ripple (pk-pk) Vr 20MHz bandwidth — 25 — Transient Response (Vo =1.2V) ttr 1A/µs load step, 50% to 100% Iomax — 50 — µSec ∆Vtr Vo over/undershoot — 50 — mV Short Circuit Threshold Io sc — 58 — A Switching Frequency ƒo Over load range 300 350 400 kHz Standby Control (pin 6) Input High Voltage Input Low Voltage Input Low Current VIH VIL I IL Referenced to GND (pins 17–22) Pin 6 to GND — –0.2 — — — 0.5 Open (3) 0.8 — Standby Input Current Iin standby Pin 6 to GND — 35 — mA External Output Capacitance C2 See PT8104 application schematic 660 — 15,000 µF External Input Capacitance C1 See PT8104 application schematic 1,500 — — µF Operating Temperature Range Ta Over Vin Range –40 — +85 (5) °C Storage Temperature Ts — –40 — +125 °C (6) (4) V mA Mechanical Shock Per Mil-STD-883D, Method 2002.3 1 msec, Half Sine, mounted to a fixture — 500 — G’s Mechanical Vibration Mil-STD-883D, Method 2007.2 20-2000 Hz, soldered in PCB — — 20 (7) 20 (7) — G’s — 55 — grams Weight — Vertical/Horizontal Flammability — Materials meet UL 94V-0 Vertical Horizontal Notes: (1) ISR-will operate down to no load with reduced specifications. (2) Total output voltage variation includes load regulation droop, which is required for compliance with specification VRM 8.4-5 (3) The Standby input (pin 6) has an internal pull-up. If it is left open-circuit the module will operate when input power is applied. A low-leakage MOSFET is recommended to control this input. The open-circuit voltage is nominally 5V. See application notes for interface considerations. (4) For operation below 0°C, Cout must have stable characteristics. Use either low ESR tantalum or Oscon® capacitors. (5) See safe Operating Area curves or consult factory for the appropriate derating. (6) The PT8100 regulators require a minimum of 660µF, low ESR ouput capacitance (1,200µF for standard aluminum electrolytic) for proper operation. (7) The case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing. Input Filter: The filter components L 1 and C3 are optional for most applications. The inductor must be rated to handle the projected input current. A rating of 20ADC is recommended. The input capacitance, C1 must be rated for a minimum of 1Arms of ripple current. For transient or dynamic load applications, additional capacitance may be required. For more information refer to the application note on capacitor recommendations for this product. 6 For technical support and more information, see inside back cover or visit www.ti.com Typical Characteristics PT8100 Series 40-A 3.3/5-V Input Programmable Integrated Switching Regulator Characteristic Data; Vin =5V, PT8101/2/4 (See Note A) Safe Operating Area; Vin =5V (See Note B) PT8101, Vo =2.5V Efficiency vs Output Current 90 100 Efficiency - % VOUT 2.5V 1.8V 1.5V 1.2V 80 70 60 Ambient Temperature (°C) 80 90 Airflow 70 400LFM 200LFM 60LFM Nat conv 60 50 40 30 50 20 0 8 16 24 32 40 0 8 16 Iout (A) 24 32 40 Iout (A) Output Ripple vs Output Current PT8102/PT8104, Vo =1.8V 50 90 Ripple - mV VOUT 1.5V 1.8V 2.5V 1.2V 30 20 10 Ambient Temperature (°C) 80 40 Airflow 70 400LFM 200LFM 60LFM Nat conv 60 50 40 30 0 20 0 8 16 24 32 40 0 Iout (A) 8 16 24 32 40 Iout (A) Power Dissipation vs Output Current 15 12 Pd - Watts VOUT 2.5V 1.8V 1.5V 1.2V 9 6 3 0 0 8 16 24 32 40 Iout (A) Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the Converter. Note B: SOA curves represent the conditions at which internal components are at or below the manufacturer’s maximum operating temperatures For technical support and more information, see inside back cover or visit www.ti.com 7 Typical Characteristics PT8100 Series 40-A 3.3/5-V Input Programmable Integrated Switching Regulator Characteristic Data; Vin =3.3V, PT8103/5 Safe Operating Area; Vin =3.3V (See Note A) Efficiency vs Output Current (See Note B) PT8103, Vo =1.8V 100 90 Efficiency - % VOUT 1.8V 1.5V 1.2V 0.8V 80 70 60 Ambient Temperature (°C) 80 90 Airflow 70 400LFM 200LFM 60LFM Nat conv 60 50 40 30 50 20 0 8 16 24 32 40 0 8 16 Iout (A) 24 32 40 Iout (A) PT8105, Vo =1.5V Output Ripple vs Output Current 50 90 Ripple - mV V OUT 0.8V 1.2V 1.8V 1.5V 30 20 10 Ambient Temperature (°C) 80 40 Airflow 70 400LFM 200LFM 60LFM Nat conv 60 50 40 30 0 20 0 8 16 24 32 40 0 8 16 Iout (A) 24 32 40 Iout (A) PT8105, Vo =0.8V Power Dissipation vs Output Current 15 90 Pd - Watts VOUT 1.8V 1.5V 1.2V 0.8V 9 6 3 Ambient Temperature (°C) 80 12 Airflow 70 400LFM 200LFM 60LFM Nat conv 60 50 40 30 0 20 0 8 16 24 32 40 0 Iout (A) 8 16 24 32 Iout (A) Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the Converter. Note B: SOA curves represent the conditions at which internal components are at or below the manufacturer’s maximum operating temperatures 8 For technical support and more information, see inside back cover or visit www.ti.com 40 Application Notes PT8100 Capacitor Recommendations for the Non-Isolated 40-A Excalibur™ Series of Regulators Tantalum Characteristics Tantalum capacitors with a minimum 10V rating are recommended on the output bus, but only the AVX TPS, Sprague 594/595, or Kemet T495/T510 product series. The AVX TPS, Sprague, or Kemet series capacitors are specified over other types due to their higher surge current, excellent power dissipation, and ripple current ratings. As a caution, the TAJ Series by AVX is not recommended. This series exhibits considerably higher ESR, reduced power dissipation and lower ripple current capability. The TAJ series is also less reliable compared to the TPS series when determining power dissipation capability. Input Capacitors The recommended input capacitance is determined by the 1.0 ampere minimum ripple current rating and 1500µF minimum capacitance. Capacitors listed below must be rated for a minimum of 2× the input voltage with +5V operation. Ripple current and ≤100mΩ equivalent series resistance (ESR) values are the major considerations along with temperature when selecting the proper capacitor. Output Capacitors The minimum required output capacitance is either 660µF Oscon/Tantalum or 1200µF Alunimun Electrolytic with a maximum ESR less than or equal to 100mΩ. Failure to observe this requirement may lead to regulator instability or oscillation. Electrolytic capacitors have poor ripple performance at frequencies greater than 400kHz, but excellent low frequency transient response. Above the ripple frequency ceramic decoupling 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 1 below. Capacitor Table Table 1 identifies the characteristics of capacitors from a number of vendors with acceptable ESR and ripple current (rms) ratings. The suggested minimum quantities per regulator for both the input and output buses are identified. This is not an extensive capacitor list. The table below is a suggested selection guide for input and output capacitors. Other capacitor vendors are available with comparable RMS ripple current rating and ESR (Equivalent Series Resistance at 100kHz). These critical parameters are necessary to insure both optimum regulator performance and long capacitor life. Table 1 Capacitors Characteristic Data Capacitor Vendor Series Panasonic FC/FK (Surface Mount) Capacitor Characteristics Quantity Working Voltage Value(µF) (ESR) Equivalent Series Resistance 85°C Maximum Ripple Current(Irms) Physical Size(mm) Input Bus Output Bus 16V 16V 1500 2200 0.060Ω 0.038Ω 1100mA 2000mA 12.5×13.5 18x16.5 1 1 1 1 EEVFK1C152Q EEVFC1C222N Vendor Number FC (Radial) 16V 1500 0.043Ω 1690mA 16x15 1 1 EEUFC1C152S United Chemi-Con LXZ (Radial) 16V 25V 1500 1800 0.038Ω 0.029Ω 1660mA 2200mA 12.5x20 16x20 1 1 1 1 LXZ16VB155M12X20LL LXZ25VB182M16X20LL FX 6.3V 10V 1000 680 0.013Ω 0.015Ω÷2 =0.007Ω 4935mA >7000mA 10×10.5 10×10.5 1 2 1 1 6FX1000M (Vin =3.3V) 10FX680M (Os-con) Nichicon PL Series 10V 10V 1500 1800 0.050Ω 0.044Ω 1190mA 1420mA 16x15 16x15 1 1 1 1 UPM1A152MHH6 UPM1A182MHH6 UD Series 10V 1000 0.09Ω 670mAx2 10×10 2 2 UUD1A102MCR1GS Os-con: SS SVP (Surface Mount) SVP (Surface Mount) 10V 10V 10V 330 330 560 0.025Ω÷3 =0.008Ω 0.017Ω÷3 =0.006Ω 0.013Ω÷2 =0.065Ω >7000mA >7000mA >7000mA 10×10.5 10.3×12.6 10×12.7 3 3 2 2 2 2 10SS330M 10SVP330M 10SVP560M AVX Tanatalum TPS Series (Surface (Mount) 10V 10V 330 330 0.100Ω÷3 =0.034Ω 0.060Ω÷3 =0.020Ω >3500mA >3500mA 7.0 L ×5.97 W ×3.45 H 3 3 2 2 TPSV337M010R0100 TPSV337M010R0060 Vishay/Sprague Tantalum 595D/594D Series (Surface Mount) 10V 10V 330 680 0.045Ω÷3 =0.015Ω 0.090Ω÷4 =0.023Ω >4600mA >2500mA 7.2 L ×6.0 W ×3.5 H 3 2 2 1 594D337X0010R2T 595D687X0010R2T Kemet Tantalum T510/T495 /T520 (Surface Mount) 10V 10V 330 220 0.035Ω÷3 =0.012Ω 0.070Ω÷5 =0.035Ω >5000mA >3000mA 7.3 L ×4.3 W ×4.0 H 3 5 1 2 T510X337M010AS T495X227M010AS Sanyo Poscap TPB (Surface Mount) 10V 220 0.040Ω÷5 =0.008Ω >3000mA 7.2 L ×4.3 W ×3.1 H 5 2 10TPB220M For technical support and more information, see inside back cover or visit www.ti.com 9 Application Notes PT8100 Series Pin-Coded Output Voltage Programming of the 40-A Rated PT8100 Series Regulators microprocessor this may not be possible. In this case either connect pin 11 to pins 17–22, or the ground plane close to the regulator. This will allow the microprocessor to use the common ground as a VID control reference. The PT8100 series of Excalibur® ISRs incorporate a pin-coded programmable output voltage. In each case the desired output voltage must be selected from a preset range defined by the regulator model. Programming is achieved by selectively connecting the control inputs, “VID0–VID4” (“VID 25mV–VID3” for PT8104), pins 1–5, to the “VID Common,” pin 11. 1 The programming code and pinout information for each model is provided in the PT8100 specifications. Some of the program codes are compatible with the “Voltage ID” codes defined by the Intel® VRM specifications. Figure 1 shows the pin-strap connections for selecting 1.5V output voltage from a PT8101. 4. If active devices are used to ground the voltage control pins, low-level open-drain MOSFETs should be used over bipolar transistors. The inherent Vce(sat) in bipolar devices introduces errors in the device’s internal voltage control circuit. Discrete transistors such as the BSS138, 2N7002, IRLML2402, are examples of appropriate devices. Active Voltage Programming: Special precautions should be taken when making changes to the voltage control progam code while the output is active. It is recommended that the ISR be powered down or placed in standby. Changes made to the program code while Vout is active can induce high current transients through the device. This is the result of the electrolytic output capacitors being either charged or discharged to the new output voltage set-point. The transient current can be minimized by making only incremental changes to the binary code, i.e. one LSB at a time. A minimum of 100µs settling time between each program state is also recommended. Making non-incremental changes to VID3 and VID4 with the output enabled is discouraged. The transients induced may activate the module’s over-current protection. When using active devices to program the output voltage, their state should be asserted prior to input power being applied. If this is not possible, pull STBY* (pin 6) to GND during the application of power, assert the program code, then release pin 6. The release of pin 6 will then to allow the device to initiate a softstart power-up to the program voltage. Notes: 1. The programming convention is as follows:Logic 0: Connect to pin 11 (VID Common). Logic 1: Open circuit/open drain (See notes 2, & 4) 2. The output voltage range of the PT8101 is limited to 2.7V maximum. Above this voltage, the performance of the module is not guaranteed. Although the module will appear to function above this voltage, VID 4 (pin 5) should not be used to set the output voltage higher than 2.7V. 3. Do not connect pull-up resistors to the voltage programming pins. 4. To minimize output voltage error, use pin 11 (VID Common) as the logic “0” reference. However if the regulator is used to power a VRM compatible Figure 1 VID0 VID1 VID2 VID3 VO SENSE VID4 11 VIN VID Common Lin 12–16 1µH + 1 =OFF 4 3 2 VID4 – VID0 1 STBY 6 GND 17–22 VOUT VO =1.5V 23–30 + L O A D COUT Q1 BSS138 GND 10 31 Sense PT8101 VIN CIN 5 For technical support and more information, see inside back cover or visit www.ti.com GND Application Notes PT8100 Series Using the On/Off Standby Function of the PT8100 Series of Programmable ISRs The PT8100 series of programmable ISRs incorporates an On/Off Standby function. This feature may be used to turn the regulated output of the module off while input voltage is applied. This places the module in “standby” mode. The standby control may be used for power-up sequencing, or wherever there is a requirement to control the module’s output status from another circuit. 2. In the standby mode the output of the regulator is tristate, and the output voltage falls at the rate that the load circuit discharges the output filter capacitors. 3. When the ground signal to the Standby pin is removed, the regulator output initiates a soft-start cycle by first asserting a low impedance to ground. If an external voltage is applied to the output bus, it will sink current and possibly over-stress the part. The Standby function is provided by the STBY* control, pin 6. If pin 6 is left open-circuit the regulator operates normally, providing a regulated output when a valid supply voltage is applied to Vin (pins 10-16) with respect to GND (pins 17-22). Connecting pin 6 to ground 1 places the regulator in standby mode 2, and reduces the input current to typically 20mA. Applying a ground signal to pin 6 prior to power-up, will inhibit the output during the period that input power is applied. When the ground signal to pin 6 is removed, the regulator initiates a softstart to re-establish the set output voltage. 3 To ensure that the regulator output is properly enabled, the STBY* control pin must be open circuit. Table 1 Standby Control Requirements 2 Parameter Min Typ V IH — V IL –0.2V Turn-On Time Turning Q 1 in Figure 1 off, removes the low-voltage signal at pin 6. After approximately 4ms the regulator output rises and reaches full regulation within 10ms. Fig. 2 shows the typical waveforms of a PT8101 following the prompt turn-off of Q1. The turn-off of Q1 corresponds to the rise in Vstby. The output voltage was set to 1.8V, and the waveforms were measured with a 5V input source, and 9.25A resistive load. Figure 2 Max Open Cct. 1 — I STBY 0.8V –0.5mA Vo (1V/Div) Notes: 1. The standby on a PT8100 series regulators must be controlled with an open-collector (or open-drain) transistor (See fig. 1). Do Not use a pull-up resistor. Table 1 gives the STBY* pin parameters. The control pin has an open-circuit voltage equal to Vin. To shut the regulator output off, the control pin must be “pulled” to less than 0.8Vdc with a low-impedance sink to ground. Iin (2A/Div) Vstby (5V/Div) HORIZ SCALE: 1ms/Div Figure 1 VO SENSE 11 VIN VID Common Lin 12–16 1µH CIN STBY 6 1 =Off GND Q1 BSS138 4 3 2 VID4 – VID0 PT8101 V IN + 5 1 31 Sense VOUT VO =1.8V 23–30 GND 17–22 L O A D + COUT GND For technical support and more information, see inside back cover or visit www.ti.com 11 PACKAGE OPTION ADDENDUM www.ti.com 13-May-2005 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty PT8101A NRND SIP MOD ULE EKF 31 6 TBD Call TI Level-1-215C-UNLIM PT8101C NRND SIP MOD ULE EKG 31 6 TBD Call TI Level-3-215C-168HRS PT8101N NRND SIP MOD ULE EKH 31 TBD Call TI Call TI PT8102A NRND SIP MOD ULE EKF 31 TBD Call TI Level-1-215C-UNLIM PT8102C NRND SIP MOD ULE EKG 31 TBD Call TI Call TI PT8102N NRND SIP MOD ULE EKH 31 TBD Call TI Level-1-215C-UNLIM PT8103A NRND SIP MOD ULE EKF 31 TBD Call TI Call TI PT8103C ACTIVE SIP MOD ULE EKG 31 6 TBD Call TI Level-3-215C-168HRS PT8103N ACTIVE SIP MOD ULE EKH 31 6 TBD Call TI Level-1-215C-UNLIM PT8104A NRND SIP MOD ULE EKF 31 TBD Call TI Call TI PT8104C NRND SIP MOD ULE EKG 31 TBD Call TI Call TI PT8105A NRND SIP MOD ULE EKF 31 TBD Call TI Level-1-215C-UNLIM PT8105C NRND SIP MOD ULE EKG 31 TBD Call TI Call TI PT8105N NRND SIP MOD ULE EKH 31 TBD Call TI Call TI 6 6 6 Lead/Ball Finish MSL Peak Temp (3) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. 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. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 13-May-2005 incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 2 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. 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. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products Applications Amplifiers amplifier.ti.com Audio www.ti.com/audio Data Converters dataconverter.ti.com Automotive www.ti.com/automotive DSP dsp.ti.com Broadband www.ti.com/broadband Interface interface.ti.com Digital Control www.ti.com/digitalcontrol Logic logic.ti.com Military www.ti.com/military Power Mgmt power.ti.com Optical Networking www.ti.com/opticalnetwork Microcontrollers microcontroller.ti.com Security www.ti.com/security Telephony www.ti.com/telephony Video & Imaging www.ti.com/video Wireless www.ti.com/wireless Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright 2005, Texas Instruments Incorporated