ATH025A0X3 LINEAGEPOWER | Alldatasheet
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Technical content
Features
Compliant to RoHS EU Directive 2002/95/EC (- Z versions) Compliant to ROHS EU Directive 2002/95/EC with lead solder exemption (non-Z versions) Delivers up to 30A of output current High efficiency – 93% 3.3V full load (VIN=12Vdc) Available in two input voltage ranges ATH: 4.5 to 5.5Vdc ATS: 6.0 to 14Vdc Output voltage programmable from ATH: 0.8 to 3.63Vdc ATS: 0.8 to 5.5Vdc Small size and low profile: 50.8 mm x 12.7 mm x 14.0 mm Monotonic start-up into pre-biased output Output voltage sequencing (EZ-SEQUENCE TM) Remote On/Off Remote Sense Over current and Over temperature protection Parallel operation with active current sharing Wide operating temperature range (-40°C to 85°C) UL* 60950 Recognized, CSA† C22.2 No. 60950-00 Certified, and VDE‡ 0805 (EN60950-1 3rd edition) Licensed ISO** 9001 and ISO 14001 certified manufacturing facilities
Description
The Austin MegaLynx series SIP power modules are non-isolated DC-DC converters in an industry standard package that can deliver up to 30A of output current with a full load efficiency of 92% at 3.3Vdc output voltage (VIN = 12Vdc). The ATH series of modules operate off an input voltage from 4.5 to 5.5Vdc and provide an output voltage that is programmable from 0.8 to 3.63Vdc, while the ATS series of modules have an input voltage range from 6 to 14V and provide a programmable output voltage ranging from 0.8 to 5.5Vdc. Both series have a sequencing feature that enables designers to implement various types of output voltage sequencing when powering multiple modules on the board. Additional features include remote On/Off, adjustable output voltage, remote sense, over current, over temperature protection and active current sharing between modules. RoHS Compliant
June 3, 2009 Austin MegaLynxTM: Non-Isolated DC-DC Power Modules: 4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current 6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current LINEAGE POWER 2 Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. Parameter Device Symbol Min Max Unit Input Voltage Continuous All V IN -0.3 15 Vdc Sequencing pin voltage All Vs EQ -0.3 15 Vdc Operating Ambient Temperature All T A -40 85 °C (see Thermal Considerations section) Storage Temperature All T stg -55 125 °C Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Parameter Device Symbol Min Typ Max Unit Operating Input Voltage ATH V IN 4.5 5.0 5.5 Vdc ATS V IN 6.0 12 14 Vdc Maximum Input Current ATH I IN,max 27 Adc (VIN= VIN,min , VO= VO,set, IO=IO, max) ATS I IN,max 26 Adc Inrush Transient All I2 t 1 A2 s Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; VIN=6.0V to 14.0V, IO= IOmax ; See Figure 1) All 100 mAp-p Input Ripple Rejection (120Hz) All 50 dB
June 3, 2009 Austin MegaLynxTM: Non-Isolated DC-DC Power Modules: 4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current 6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current LINEAGE POWER 3 Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Output Voltage Set-point All V O, set -1.5 ⎯ +1.5 % V O, set (VIN=VIN,min, IO=IO, max, Tref=25°C) Output Voltage All V O, set –3.0 +3.0 % V O, set (Over all operating input voltage, resistive load, and temperature conditions until end of life) Adjustment Range Selected by an external resistor ATH V O 0.8 3.63 Vdc ATS V O 0.8 5.5 Vdc Output Regulation Line (VIN=VIN, min to VIN, max) All 0.1 % V O, set Load (IO=IO, min to IO, max) All 0.4 % V O, set Temperature (Tref=TA, min to TA, max) All 0.5 1 % V O, set Output Ripple and Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO, max COUT = 0.01μF // 0.1μF // 10μF ceramic capacitors) Peak-to-Peak (5Hz to 20MHz bandwidth) V o ≤ 2.5V 50 mV pk-pk Peak-to-Peak (5Hz to 20MHz bandwidth) 2.5V < V o ≤ 3.63V 75 mV pk-pk Peak-to-Peak (5Hz to 20MHz bandwidth) V o > 3.63V 100 mV pk-pk External Capacitance ESR ≥ 1 mΩ All C O, max 0 2,000 µF ESR ≥ 10 mΩ All C O, max 0 10,000 µF Output Current (VIN = 5Vdc/12Vdc) ATH025/ATS025 I o 0 25 Adc Output Current (VIN = 5Vdc) ATH030 I o 0 30 Adc Output Current Limit Inception (Hiccup Mode) All I O, lim 120 % I omax Output Short-Circuit Current All I O, s/c 20 % I omax (VO≤250mV) ( Hiccup Mode ) Efficiency V O,set = 0.8dc η 82.0 % VIN=12Vdc, TA=25°C V O,set = 1.2Vdc η 84.0 % IO=25A , VO= VO,set V O,set = 1.5Vdc η 88.0 % VO,set = 1.8Vdc η 89.5 % VO,set = 2.5Vdc η 91.0 % V O,set = 3.3Vdc η 92.5 % V O,set = 5.0Vdc η 94.0 % Efficiency V O,set = 0.8dc η 84.0 % VIN=5Vdc, TA=25°C V O,set = 1.2Vdc η 88.5 % IO=30A , VO= VO,set V O,set = 1.5Vdc η 90.0 % VO,set = 1.8Vdc η 91.0 % VO,set = 2.5Vdc η 93.0 % V O,set = 3.3Vdc η 95.0 % Switching Frequency, Fixed All f sw ⎯ 300 ⎯ kHz
June 3, 2009 Austin MegaLynxTM: Non-Isolated DC-DC Power Modules: 4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current 6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current LINEAGE POWER 4 Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Dynamic Load Response (dIO/dt=5A/μs; VIN=VIN, nom; VO=3.3V; TA=25°C;) Load Change from Io= 0% to 50% of IO,max; No external output capacitors Peak Deviation ATS V pk ⎯ 350 ⎯ mV Settling Time (VO<10% peak deviation) ATS t s ⎯ 20 ⎯ μs (dIO/dt=5A/μs; VIN=VIN, nom; VO=3.3V; TA=25°C;) Load Change from IO= 50% to 0%of IO, max: No external output capacitors Peak Deviation ATS V pk ⎯ 350 ⎯ mV Settling Time (VO<10% peak deviation) ATS t s ⎯ 20 ⎯ μs (dIO/dt=5A/μs; VIN=VIN, nom; VO=3.3V; TA=25°C;) Load Change from Io= 0% to 50% of IO,max; No external output capacitors Peak Deviation ATH V pk ⎯ 320 ⎯ mV Settling Time (VO<10% peak deviation) ATH t s ⎯ 20 ⎯ μs (dIO/dt=5A/μs; VIN=VIN, nom; VO=3.3V; TA=25°C) Load Change from IO= 50% to 0%of IO, max: No external output capacitors Peak Deviation ATH V pk ⎯ 250 ⎯ mV Settling Time (VO<10% peak deviation) ATH t s ⎯ 20 ⎯ μs General Specifications Parameter Min Typ Max Unit Calculated MTBF (VIN= VIN, nom, IO= 0.8IO, max, TA=40°C) Telecordia SR 332 Issue 1: Method 1, case 3 3,016,040 Hours Weight ⎯ 7.4 ⎯ g
June 3, 2009 Austin MegaLynxTM: Non-Isolated DC-DC Power Modules: 4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current 6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current LINEAGE POWER 5 Feature Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions for additional information. Parameter Device Symbol Min Typ Max Unit On/Off Signal Interface (VIN=VIN, min to VIN, max ; open collector or equivalent, Signal referenced to GND) Logic High (Module OFF) Input High Current All I IH 0.5 ⎯ 3.3 mA Input High Voltage All V IH 3.0 ⎯ VIN, max V Logic Low (Module ON) Input Low Current All I IL ⎯ ⎯ 200 µA Input Low Voltage All V IL -0.3 ⎯ 1.2 V Turn-On Delay and Rise Times (VIN=VIN, nom, IO=IO, max , VO to within ±1% of steady state) Case 1: On/Off input is enabled and then input power is applied (delay from instant at which VIN = VIN, min until Vo = 10% of Vo, set) All Tdelay ― 3 msec Case 2: Input power is applied for at least one second and then the On/Off input is enabled (delay from instant at which Von/Off is enabled until V o = 10% of Vo, set) All Tdelay ― 3 msec Output voltage Rise time (time for Vo to rise from 10% of Vo, set to 90% of Vo, set) All Trise ― 4 msec Output voltage overshoot 3.0 % V O, set IO = IO, max; VIN, min – VIN, max, TA = 25 o C Remote Sense Range All ⎯ ⎯ 0.5 V Over Temperature Protection All T ref ⎯ 125 ⎯ °C (See Thermal Consideration section) Sequencing Slew rate capability All dV SEQ/dt — 2 V/msec (VIN, min to VIN, max; IO, min to IO, max VSEQ < Vo) Sequencing Delay time (Delay from VIN, min to application of voltage on SEQ pin) All Ts EQ-delay 10 msec Tracking Accuracy Power-up (2V/ms) All |V SEQ –Vo,set| 100 200 mV Power-down (1V/ms) |V SEQ –Vo,set| 200 400 mV (VIN, min to VIN, max; IO, min - IO, max VSEQ < Vo,set) Input Undervoltage Lockout Turn-on Threshold ATH 4.3 Vdc Turn-off Threshold ATH 3.9 Vdc Turn-on Threshold ATS 5.5 Vdc Turn-off Threshold ATS 5.0 Vdc Forced Load Share Accuracy -P ⎯ 10 % Io Number of units in Parallel -P 5
undervoltage lockout turn-on threshold. achieved as specified in the electrical specification. resistor needed for a specific output voltage. Figure 45. Circuit configuration to program output voltage using an external resistor. either leave the SEQ pin unconnected or tied to VIN. Figure 46. Circuit Configuration for margining
0.8 Open
June 3, 2009 Austin MegaLynxTM Non-Isolated dc-dc Power Modules: 4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current 6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current LINEAGE POWER 15 For proper voltage sequencing, first, input voltage is applied to the module. The On/Off pin of the module is left unconnected or tied to GND for negative logic modules so that the module is ON by default. After applying input voltage to the module, a delay of 10msec minimum is required before applying voltage on the SEQ pin. During this delay time, the SEQ pin should be kept at a voltage of 50mV (± 20 mV). After the 10msec delay, the voltage applied to the SEQ pin is allowed to vary and the output voltage of the module will track this voltage on a one-to-one volt basis until the output reaches the set- point voltage. To initiate simultaneous shutdown of the modules, the sequence pin voltage is lowered in a controlled manner. The output voltages of the modules track the sequence pin voltage when it falls below their set-point voltages. A valid input voltage must be maintained until the tracking and output voltages reach zero to ensure a controlled shutdown of the modules. For a more detailed description of sequencing, please refer to Application Note AN04-008 titled “Guidelines for Sequencing of Multiple Modules”. When using the EZ-SEQUENCE TM feature to control start-up of the module, pre-bias immunity feature during start-up is disabled. The pre-bias immunity feature of the module relies on the module being in the diode-mode during start-up. When using the EZ-SEQUENCE TM feature, modules goes through an internal set-up time of 10msec, and will be in synchronous rectification mode when voltage at the SEQ pin is applied. This will result in sinking current in the module if pre-bias voltage is present at the output of the module. When pre-bias immunity during start-up is required, the EZ- SEQUENCETM feature must be disabled. Active Load Sharing (-P Option) For additional power requirements, the Austin MegaLynx series power module is also available with a parallel option. Up to five modules can be configured, in parallel, with active load sharing. Good layout techniques should be observed when using multiple units in parallel. To implement forced load sharing, the following connections should be made:
- The share pins of all units in parallel must be connected together. The path of these connections should be as direct as possible.
- All remote-sense pins should be connected to the power bus at the same point, i.e., connect all the SENSE (+) pins to the (+) side of the bus. Close proximity and directness are necessary for good noise immunity Some special considerations apply for design of converters in parallel operation:
- When sizing the number of modules required for parallel operation, take note of the fact that current sharing has some tolerance. In addition, under transient condtions such as a dynamic load change and during startup, all converter output currents will not be equal. To allow for such variation and avoid the likelihood of a converter shutting off due to a current overload, the total capacity of the paralleled system should be no more than 75% of the sum of the individual converters. As an example, for a system of four ATS030A0X3-SR converters the parallel, the total current drawn should be less that 75% of (4 x 30A) , i.e. less than 90A.
- All modules should be turned on and off together. This is so that all modules come up at the same time avoiding the problem of one converter sourcing current into the other leading to an overcurrent trip condition. To ensure that all modules come up simultaneously, the on/off pins of all paralleled converters should be tied together and the converters enabled and disabled using the on/off pin.
- The share bus is not designed for redundant operation and the system will be non-functional upon failure of one of the unit when multiple units are in parallel. In particular, if one of the converters shuts down during operation, the other converters may also shut down due to their outputs hitting current limit. In such a situation, unless a coordinated restart is ensured, the system may never properly restart since different converters will try to restart at different times causing an overload condition and subsequent shutdown. This situation can be avoided by having an external output voltage monitor circuit that detects a shutdown condition and forces all converters to shut down and restart together.
June 3, 2009 Austin MegaLynxTM Non-Isolated dc-dc Power Modules: 4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current 6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current LINEAGE POWER 17 Mechanical Outline of Module Dimensions are in millimeters and (inches). x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in) BACK SIDE VIEW Pin out Pin Function 1 Vo 2 Vo
3 Sense+
5 GND
6 GND*
7 Share**
8 GND
9 V IN
10 V IN
11 SEQ
12 Trim
13 On/Off
** Pin 7 is paralleling option
June 3, 2009 Austin MegaLynxTM: Non-Isolated DC-DC Power Modules: 4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current 6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current LINEAGE POWER 18 Recommended Pad Layout Dimensions are in millimeters and (inches). x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in)
June 3, 2009 Austin MegaLynxTM Non-Isolated dc-dc Power Modules: 4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current 6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current LINEAGE POWER 19 Through-Hole Lead-Free Soldering Information The RoHS-compliant through-hole products use the SAC (Sn/Ag/Cu) Pb-free solder and RoHS-compliant components. They are designed to be processed through single or dual wave soldering machines. The pins have an RoHS-compliant finish that is compatible with both Pb and Pb-free wave soldering processes. A maximum preheat rate of 3°C/s is suggested. The wave preheat process should be such that the temperature of the power module board is kept below 210°C. For Pb solder, the recommended pot temperature is 260°C, while the Pb-free solder pot is 270°C max. Not all RoHS-compliant through-hole products can be processed with paste-through-hole Pb or Pb-free reflow process. If additional information is needed, please consult with your Lineage Power technical representative for more details.
June 3, 2009 Austin MegaLynxTM: Non-Isolated DC-DC Power Modules: 4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current 6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current LINEAGE POWER 20 Document No: DS05-012 ver. 1.04 PDF Name: austin_megalynx_sip.pdf
Ordering Information
Please contact your Lineage Power Sales Representative for pricing, availability and optional features. Table 2. Device Codes Table 3. Device Options
3000 Skyline Drive, Mesquite, TX 75149, USA
a pplication . No rig hts under any patent accompany the sale o f any such p roduct(s) or in for mati on. © 2008 Lineage Po we r Corpor ation, (Mesquite, Texas) All In ternational Rights Reserved.