ATH18K12-9J

ATH18K12 Series —12-V Input 18-A, 12-V Input Non-Isolated Wide-Output Adjust Power Module REVISION 00 (30SEP2003) Features NOMINAL SIZE = 1.5 in x 0.87 in (38,1 mm x 22,1 mm) • Up to 18 A Output Current • 12-V Input Voltage • Wide-Output Voltage Adjust (1.2 V to 5.5 V) • Efficiencies up to 95 % • 195 W/in³ Power Density • On/Off Inhibit • Output Voltage Sense • Margin Up/Down Controls • Under-Voltage Lockout • Auto-Track™ Sequencing • Output Over-Current Protection (Non-Latching, Auto-Reset) • Over-Temperature Protection • Surface Mountable • Operating T emp: –40 to +85 °C • DSP Compatible Output Voltages • IPC Lead Free 2 • Point-of-Load Alliance (POLA) Compatible The ATH18K12 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 18 A of output current from a 12-V input bus voltage. The output voltage of the ATH18K12 can be set to any value over the range, 1.2 V to 5.5 V, using a single resistor. Description This series includes Auto-Track™. 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), and margin up/down controls. To ensure tight load regulation, an output voltage sense is also provided. A non-latching over-current trip and over-temperature shutdown provides load fault protection. Target applications include complex multi-voltage, multi-processor systems that incorporate the industry’s high-speed DSPs, micro-processors and bus drivers. Pin Configuration Pin 1 2 3 4 5 6 7 8 9 10 Function GND Vin Inhibit * Vo Adjust Vo Sense Vout GND Track Margin Down * Margin Up * * Denotes negative logic: Open = Normal operation Ground = Function active ™ Track Auto- ncing e Sequ Standard Application Track Margin Down Margin Up 10 1 9 8 7 Rset = Resistor to set the desired output voltage (see spec. table for values). Cin = Required electrolytic 560 µF Cout = Optional 330 µF electrolytic ATH18K12-9S PTH12020W VIN (Top View) 2 6 VOUT 3 4 5 Inhibit RSET (Required) 0.1 W, 1 % Vo Sense L O A D GND North America (USA): 1-888-41-ASTEC Europe (UK): 44(1384)842-211 + CIN 560 µF (Required) COUT 330 µF (Optional) GND + Asia (HK): 852-2437-9662 ATH18K12 Series—12-V Input 18-A, 12-V Input Non-Isolated Wide-Output Adjust Power Module REVISION 00 (30SEP2003) Ordering Information Input Voltage 10.8V to 13.2V Options: “-J” “-SJ” “-S” Output Voltage 1.2V1 to 5.5V Output Current 18A Model Number ATH18K12-9(S)(J) - Through-hole Termination, Tray Packaging SMT Termination, Tray Packaging SMT Termination, T&R Packaging Notes: 1 Preset output voltage is 1.2V; externally adjustable to 5.5V Pin Descriptions Vin: The positive input voltage power node to the module, which is referenced to common GND. Vout: The regulated positive power output with respect to the GND node. GND: This is the common ground connection for the Vin and Vout power connections. It is also the 0 VDC reference for the control inputs. Inhibit: The Inhibit pin is an open-collector/drain negative logic input that is referenced to GND. Applying a lowlevel ground signal to this input disables the module’s o utput and turns o ff the o utput vo ltage. When the Inhibit control is active, the input current drawn by the regulator is significantly reduced. If the I nhibit p in is left open-circuit, the module will produce an output whenever a valid input source is applied. Vo Adjust: A 0.1 W, 1 % tolerance (or better) resistor must be connected directly between this pin and pin 7 (GND) pin to set the output voltage to the desired value. The set point range for the output voltage is from 1.2 V to 5.5 V. The resistor required for a given output voltage may be calculated from the following formula. If left open circuit, the module output will default to its lowest output voltage value. For further information on output voltage adjustment consult the related application note. R set Vo Sense: The sense input allows the regulation circuit to compensate for voltage drop between the module and the load. For optimal voltage accuracy Vo Sense should be connected to Vout. It can also be left disconnected. Track: This is an analog control input that enables the output voltage to follow an external voltage. This pin becomes active typically 20 ms after the input voltage has been applied, and allows direct control of the output voltage from 0 V up to the nominal set-point voltage. Within this range the output will follow the voltage at the Track pin on a volt-for-volt basis. When the control voltage is raised above this range, the module regulates at its set-point voltage. The feature allows the output voltage to rise simultaneously with other modules powered from the same input bus. If unused, the input may b e le ft unc o nnec ted. Note: Due to the under-voltage lockout feature, the output of the module cannot follow its own input voltage during power up. For more information, consult the related application note. Margin Down: When this input is asserted to GND, the output voltage is decreased by 5% from the nominal. The input requires an open-collector (open-drain) interface. It is not TTL compatible. A lower percent change can be accomodated with a series resistor. For further information, consult the related application note. Margin Up: When this input is asserted to GND, the output voltage is increased by 5%. The input requires an open-collector (open-drain) interface. It is not TTL compatible. The percent change can be reduced with a series resistor. For further information, consult the related application note. 0.8 V = 10 k · Vout – 1.2 V – 1.82 k The specification table gives the preferred resistor values for a number of standard output voltages. ** Auto-Track is a trademark of Texas Instruments, Inc. North America (USA): 1-888-41-ASTEC Europe (UK): 44(1384)842-211 Asia (HK): 852-2437-9662 ATH18K12 Series—12-V Input 18-A, 12-V Input Non-Isolated Wide-Output Adjust Power Module REVISION 00 (30SEP2003) Environmental & Absolute Maximum Ratings Characteristics Track Input Voltage Operating T emperature Range Solder Reflow T emperature Storage T emperature Mechanical Shock Mechanical Vibration Weight Flammability — — Symbols V track Ta T reflow Ts (Voltages are with respect to GND) Min –0.2 –40 –40 — — — Typ — — — 500 20 7 Max V in Conditions Over Vin Range Surface temperature of module body or pins — Per Mil-STD-883D, Method 2002.3 1 msec, ½ Sine, mounted Mil-STD-883D, Method 2007.2 20-2000 Hz Meets UL 94V-O Units V °C °C °C G’s G’s grams 85 215 (i) 125 — — — Notes: (i) During reflow of SMD package version do not elevate peak temperature of the module, pins or internal components above the stated maximum. For further guidance refer to the application note, “Reflow Soldering Requirements for Plug-in Power Surface Mount Products.” Specifications Characteristics Output Current (Unless otherwise stated, Ta =25 °C, Vin =12 V, Vout =3.3 V, Cin =560 µF, Cout =0 µF, and Io =Iomax) Symbols Io V in Conditions 60 °C, 200 LFM airflow 25 °C, natural convection Over Io range –40 °C 2.5 V Reset, followed by auto-recovery 1 A/µs load step, 50 to 100 % Iomax, Cout =330 µF Recovery Time Vo over/undershoot Pin to GND Pin to GND Vtrack – Vo ≤ 50 mV and Vtrack < Vo(nom) Vin increasing Vin decreasing Referenced to GND Pin to GND Inhibit (pin 3) to GND, Track (pin 8) open Over Vin and Io ranges Min 0 0 10.8 — — — — — — — — — — — — — — — — — — — — 5 — 8.8 Vin –0.5 –0.2 — — 260 560 (5) 0 5.3 PTH12020W Typ — — — — ±0.5 ±5 ±5 — 95.0 93.5 92.2 90.8 90.0 88.5 86.5 32 1 30 70 130 ±5 – 8 (3) — — 9.7 9.2 — — –0.24 5 320 — 330 (6) — Max 18 (1) 18 (1) 13.2 ±2 (2) — — — ±3 — — — — — — — — — — — — — — –0.13 — 10.4 — (2) Units A V %Vo % Vo Input Voltage Range Set-Point Voltage T olerance T emperature Variation Line Regulation Load Regulation T otal Output Variation Efficiency Vo tol ∆Regtemp ∆Regline ∆Regload ∆Regtot η mV mV %Vo % Vo Ripple (pk-pk) Over-Current Threshold Transient Response Vr Io trip ttr ∆Vtr ∆Vo margin IIL margin IIL track dVtrack/dt UVLO VIH VIL IIL inhibit Iin inh ƒs Cin Cout MTBF mVpp % Vo A µSec mV % µA mA V/ms V V mA mA kHz µF µF 106 Hrs Margin Up/Down Adjust Margin Input Current (pins 9 /10) Track Input Current (pin 8) Track Slew Rate Capability Under-Voltage Lockout Inhibit Control (pin3) Input High Voltage Input Low Voltage Input Low Current Input Standby Current Switching Frequency External Input Capacitance External Output Capacitance Reliability (4) Open (4) 0.5 — — 380 — 10,000 — Per Bellcore TR-332 50 % stress, Ta =40 °C, ground benign Notes: (1) See SOA curves or consult factory for appropriate derating. (2) 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 200 ppm/°C or better temperature stability. (3) A small low-leakage (3000 mA 1600 mA >2000 mA 2360 mA Physical Size(mm) 10×12.5 12.5×15 12.5×13.5 12.5×13.5 10×10.5 10×12.5 10×16 12.5×15 16×15 16×15 10×10.5 11×12 7.3L ×5.7W ×4.1H 4.3W ×7.3L ×4.0H 7.2L ×6W ×4.1H Input Bus 2 1 1 1 2 2 1 1 1 1 2 2 N/R N/R N/R N/R N/R (1) (1) Optional Output Bus 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Vendor Part Number 330 560 1000 680 330 330 680 560 680 560 270 330 330 330 330 220 330 EEUFC1E331 EEUFC1E561S EEVFK1E102Q EEVFK1V681Q 16FX330M LXZ25VB331M10X12LL LXZ16VB681M10X16LL UPM1E561MHH6 UPM1E681MHH6 UPM1V561MHH6 16SP270M 16SVP330M TPSE337M010R0100 (Vo