Data Sheet April 1, 2008 ATL010A0X43-SR Non-Isolated Power Modules 12Vdc, Programmable 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A Output Current RoHS Compliant 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) Flexible output voltage sequencing EZ-SEQUENCE Delivers up to 10A of output current High efficiency – 93% at 3.3V full load (VIN = 12.0V) Small size and low profile: 33.00 mm x 13.46 mm x 8.28 mm (1.300 in x 0.530 in x 0.326 in) Low output ripple and noise High Reliability: Applications Distributed power architectures Intermediate bus voltage applications Telecommunications equipment Servers and storage applications Networking equipment o Calculated MTBF = 15 M hours at 25 C Full-load Output voltage programmable from 0.75 Vdc to 5.5 Vdc via external resistor Line Regulation: 0.3% (typical) Load Regulation: 0.4% (typical) Temperature Regulation: 0.4% (typical) Remote On/Off Remote Sense Output overcurrent protection (non-latching) Overtemperature protection Wide operating temperature range (-40°C to 85°C) UL* 60950-1Recognized, CSA† C22.2 No. 60950-1‡ 03 Certified, and VDE 0805:2001-12 (EN60950-1) Licensed ISO** 9001 and ISO 14001 certified manufacturing facilities Description The ATL010A0X43-SR power modules are non-isolated dc-dc converters that can deliver up to 10A of output current with full load efficiency of 93% at 3.3V output. These modules provide a precisely regulated output voltage programmable via an external resistor from 0.75Vdc to 5.5Vdc over a wide range of input voltage (VIN = 9 – 18Vdc). TM The ATL010A0X43-SR series has a sequencing feature, EZ-SEQUENCE that enables designers to implement various types of output voltage sequencing when powering multiple voltages on a board. Their open-frame construction and small footprint enable designers to develop cost- and space-efficient solutions. In addition to sequencing, standard features include remote On/Off, remote sense, output voltage adjustment, over current and over temperature protection. * UL is a registered trademark of Underwriters Laboratories, Inc. † CSA is a registered trademark of Canadian Standards Association. VDE is a trademark of Verband Deutscher Elektrotechniker e.V. ** ISO is a registered trademark of the International Organization of Standards ‡ Document No: DS05-008 ver.1.21 PDF name: atl010a0x43-sr_ds.pdf Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current 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 All VIN -0.3 18 Vdc Sequencing Voltage All VSEQ -0.3 ViN, Max Vdc Operating Ambient Temperature All TA -40 85 °C All Tstg -55 125 °C Input Voltage Continuous (see Thermal Considerations section) Storage Temperature Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Parameter Device Symbol Min Typ Max Unit 9.0 12.0 18.0 Vdc 7.0 Adc Operating Input Voltage All VIN Maximum Input Current All IIN,max VO,set = 0.75 Vdc IIN,No load 40 mA VO,set = 5.0Vdc IIN,No load 100 mA All IIN,stand-by 2.0 mA Inrush Transient All It Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; VIN, min to VIN, max, IO= IOmax ; See Test configuration section) All 20 Input Ripple Rejection (120Hz) All 30 (VIN= VIN, min to VIN, max, IO=IO, max VO,set = 5.5Vdc) Input No Load Current (VIN = 12.0Vdc, IO = 0, module enabled) Input Stand-by Current (VIN = 12.0Vdc, module disabled) 2 2 0.4 As mAp-p dB CAUTION: These power modules can be used in a wide variety of applications ranging from simple standalone operation to an integrated part of sophisticated power architectures. To preserve maximum flexibility, no internal fuse has been provided. Also, extensive safety testing has shown that no external fuse is required to protect the unit. However, it is still recommended that some type of current-limiting power source be used to protect the module and evaluated in the end-use equipment. LINEAGE POWER 2 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Electrical Specifications (continued) Parameter Output Voltage Set-point Device Symbol Min Typ Max Unit All VO, set –2.0 ⎯ +2.0 % VO, set All VO, set –2.5% ⎯ +3.5% % VO, set All VO 0.7525 5.5 Vdc (VIN=IN, min, IO=IO, max, TA=25°C) Output Voltage (Over all operating input voltage, resistive load, and temperature conditions until end of life) Adjustment Range Selected by an external resistor Output Regulation Line (VIN=VIN, min to VIN, max) All ⎯ 0.3 % VO, set Load (IO=IO, min to IO, max) All ⎯ 0.4 % VO, set Temperature (Tref=TA, min to TA, max) All ⎯ 0.4 % VO, set RMS (5Hz to 20MHz bandwidth) All ⎯ 12 30 mVrms Peak-to-Peak (5Hz to 20MHz bandwidth) All ⎯ 30 75 mVpk-pk ⎯ 1000 μF Output Ripple and Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO, max Cout = 1μF ceramic//10μFtantalum capacitors) External Capacitance ESR ≥ 1 mΩ All CO, max ⎯ All CO, max ⎯ ⎯ 5000 μF Output Current All Io 0 ⎯ 10 Adc Output Current Limit Inception (Hiccup Mode ) All IO, lim ⎯ 200 ⎯ % Io Output Short-Circuit Current All IO, s/c ⎯ 3 ⎯ Adc ESR ≥ 10 mΩ (VO≤250mV) ( Hiccup Mode ) Efficiency VIN= VIN, nom, TA=25°C IO=IO, max , VO= VO,set Switching Frequency VO, set = 0.75Vdc η 81.0 % VO, set = 1.2Vdc η 87.5 % VO,set = 1.5Vdc η 89.0 % VO,set = 1.8Vdc η 90.0 % VO,set = 2.5Vdc η 92.0 % VO,set = 3.3Vdc η 93.0 % VO,set = 5.0Vdc η 95.0 All fsw ⎯ 300 ⎯ kHz All Vpk ⎯ 200 ⎯ mV % Dynamic Load Response (dIo/dt=2.5A/μs; VIN = VIN, nom; TA=25°C) Load Change from Io= 50% to 100% of Io,max; 1μF ceramic// 10 μF tantalum Peak Deviation Settling Time (Vo<10% peak deviation) All ts ⎯ 25 ⎯ μs (dIo/dt=2.5A/μs; VIN = VIN, nom; TA=25°C) All Vpk ⎯ 200 ⎯ mV All ts ⎯ 25 ⎯ μs Load Change from Io= 100% to 50%of Io,max: 1μF ceramic// 10 μF tantalum Peak Deviation Settling Time (Vo<10% peak deviation) LINEAGE POWER 3 3 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit All Vpk ⎯ 100 ⎯ mV Dynamic Load Response (dIo/dt=2.5A/μs; VIN = VIN, nom; TA=25°C) Load Change from Io= 50% to 100% of Io,max; Co = 2x150 μF polymer capacitors Peak Deviation Settling Time (Vo<10% peak deviation) All ts ⎯ 25 ⎯ μs (dIo/dt=2.5A/μs; VIN = VIN, nom; TA=25°C) Load Change from Io= 100% to 50%of Io,max: Co = 2x150 μF polymer capacitors Peak Deviation All Vpk ⎯ 100 ⎯ mV Settling Time (Vo<10% peak deviation) All ts ⎯ 25 ⎯ μs General Specifications Parameter Calculated MTBF (VIN= VIN, nom, IO= IO, max, TA=40°C) Telecordia SR 332 Issue 1: Method 1, case 3 Weight LINEAGE POWER Min Typ Max 15,618,000 ⎯ 5.6 (0.2) Unit Hours ⎯ g (oz.) 4 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current 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 Device code with Suffix “4” – Positive logic (On/Off is open collector/drain logic input; Signal referenced to GND - See feature description section) Input High Voltage (Module ON) All VIH ― ― VIN, max V Input High Current All IIH ― ― 10 μA Input Low Voltage (Module OFF) All VIL -0.2 ― 0.3 V Input Low Current All IIL ― 0.2 1 mA Input High Voltage (Module OFF) All VIH 2.5 Vdc Input High Current All IIH Input Low Voltage (Module ON) All VIL Input low Current All Device Code with no suffix – Negative Logic (On/OFF pin is open collector/drain logic input with external pull-up resistor; signal referenced to GND) ― VIN,max 0.2 1 mA ― 0.3 Vdc IIL ― 10 μA All Tdelay 3 msec All Tdelay 3 msec All Trise -0.2 Turn-On Delay and Rise Times o (IO=IO, max , VIN = VIN, nom, TA = 25 C, ) Case 1: On/Off input is set to Logic Low (Module ON) and then input power is applied (delay from instant at which VIN =VIN, min until Vo=10% of Vo,set) Case 2: Input power is applied for at least one second and then the On/Off input is set to logic Low (delay from instant at which Von/Off=0.3V until Vo=10% of Vo, set) Output voltage Rise time (time for Vo to rise from 10% of Vo,set to 90% of Vo, set) ― Output voltage overshoot – Startup 4 6 msec ― 1 % VO, set o IO= IO, max; VIN = 9.0 to 18Vdc, TA = 25 C Sequencing Delay time Delay from VIN, min to application of voltage on SEQ pin Tracking Accuracy All TsEQ-delay (Power-Up: 2V/ms) All VSEQ –Vo 10 100 200 msec mV (Power-Down: 1V/ms) All VSEQ –Vo 300 500 mV ― ― 0.5 V ⎯ 125 ⎯ °C (VIN, min to VIN, max; IO, min to IO, max VSEQ < Vo) Remote Sense Range Overtemperature Protection All All Tref (See Thermal Consideration section) Input Undervoltage Lockout Turn-on Threshold All ⎯ 8.2 ⎯ V Turn-off Threshold All ⎯ 8.0 ⎯ V LINEAGE POWER 5 5 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Characteristic Curves The following figures provide typical characteristics for the ATL010A0X43-SR modules at 25ºC. 95 95 Vin = 9 V 90 EFFICIENCY, η (%) EFFICIENCY, η (%) 90 85 80 Vin = 18 V Vin = 14 V 75 70 Vin = 9 V 85 Vin = 14 V 80 Vin = 18 V 75 70 0 2 4 6 8 10 0 2 OUTPUT CURRENT, IO (A) 4 6 8 10 OUTPUT CURRENT, IO (A) Figure 1. Converter Efficiency versus Output Current (Vout =1.2Vdc). Figure 4. Converter Efficiency versus Output Current (Vout = 2.5Vdc). 95 95 Vin = 9 V 90 EFFICIENCY, η (%) EFFICIENCY, η (%) 90 85 Vin = 18 V 80 Vin = 14 V 75 Vin = 14 V 80 Vin = 18 V 75 70 70 0 2 4 6 OUTPUT CURRENT, IO (A) 8 95 0 10 Figure 2. Converter Efficiency versus Output Current (Vout = 1.5Vdc). 2 4 6 8 10 OUTPUT CURRENT, IO (A) Figure 5. Converter Efficiency versus Output Current (Vout = 3.3Vdc). 100 Vin = 9 V 90 95 EFFICIENCY, η (%) EFFICIENCY, η (%) Vin = 9 V 85 85 Vin = 18 V Vin = 14 V 80 75 90 Vin=9V Vin=14V 85 Vin=18V 80 75 70 70 0 2 4 6 8 10 OUTPUT CURRENT, IO (A) Figure3. Converter Efficiency versus Output Current (Vout = 1.8Vdc). LINEAGE POWER 0 2 4 6 8 10 OUTPUT CURRENT, IO (A) Figure 6. Converter Efficiency versus Output Current (Vout = 5.0Vdc). 6 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Characteristic Curves (continued) The following figures provide typical characteristics for the ATL010A0X43-SR modules at 25ºC. 8 10 12 14 INPUT VOLTAGE, VIN (V) VO (V) (20mV/div) OUTPUT VOLTAGE Figure 7. Input voltage vs. Input Current (Vout = 3.3Vdc). TIME, t (2μs/div) VO (V) (20mV/div) OUTPUT VOLTAGE Figure 8. Typical Output Ripple and Noise (Vin = 12.0V dc, Vo = 2.5 Vdc, Io=10A). TIME, t (2μs/div) Figure 9. Typical Output Ripple and Noise (Vin = 12.0V dc, Vo = 5.0 Vdc, Io=10A). LINEAGE POWER 16 18 VO (V) (200mV/div) IO (A) (2A/div) 0 OUTPUT CURRENT, OUTPUT VOLTAGE Io=0A 1 TIME, t (5 μs/div) Figure 10. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vo = 3.3Vdc). VO (V) (200mV/div) 2 IO (A) (2A/div) Io=5A OUTPUT CURRENT, OUTPUT VOLTAGE 3 TIME, t (5 μs/div) Figure 11. Transient Response to Dynamic Load Change from 100% to 50% of full load (Vo = 3.3 Vdc). VO (V) (100mV/div) Io=10A IO (A) (2A/div) 4 OUTPUT CURRENT, OUTPUT VOLTAGE INPUT CURRENT, IIN (A) 5 TIME, t (10μs/div) Figure 12. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vo = 3.3 Vdc, Cext = 2x150 μF Polymer Capacitors). 7 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Characteristic Curves (continued) VIN (V) (5V/div) Vo (V) (2V/div) VOn/off (V) (2V/div) On/Off VOLTAGE Low-ESR external capacitors (Co= 5000μF) (Vin = 12.0Vdc, Vo = 5.0Vdc, Io = 10.0A, Co = 1050μF). LINEAGE POWER OUTPUT VOLTAGE INPUT VOLTAGE TIME, t (1 ms/div) Figure 15. Typical Start-Up Using Remote On/Off with TIME, t (2 ms/div) Figure 17 Typical Start-Up Using Remote On/Off with Prebias (Vin = 12.0Vdc, Vo = 2.5Vdc, Io = 1.0A, Vbias =1.2Vdc). OUTPUT CURRENT, VOn/off (V) (5V/div) VO (2V/div) OUTPUT VOLTAGE On/Off VOLTAGE Figure 14. Typical Start-Up Using Remote On/Off (Vin = 12.0Vdc, Vo = 5.0Vdc, Io = 10.0A). On/Off VOLTAGE TIME, t (1 ms/div) Figure 16. Typical Start-Up with application of Vin with low-ESR polymer capacitors at the output (7x150 μF) (Vin = 12Vdc, Vo = 5.0Vdc, Io = 10A, Co = 1050 μF) VOV) (1V/div) VOV) (1V/div) OUTPUT VOLTAGE VOn/off (V) (5V/div) Figure 13. Transient Response to Dynamic Load Change from 100% of 50% full load (Vo = 3.3 Vdc, Cext = 2x150 μF Polymer Capacitors). TIME, t (2 ms/div) OUTPUT VOLTAGE TIME, t (10μs/div) IO (A) (10A/div) OUTPUT CURRENT, OUTPUTVOLTAGE IO (A) (2A/div) VO (V) (100mV/div) The following figures provide typical characteristics for the ATL010A0X43-SR modules at 25ºC. TIME, t (10ms/div) Figure 18. Output short circuit Current (Vin = 12.0Vdc, Vo = 0.75Vdc). 8 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Characteristic Curves (continued) 12 12 10 10 OUTPUT CURRENT, Io (A) OUTPUT CURRENT, Io (A) The following figures provide thermal derating curves for ATL010A0X43-SR modules. 8 0.5m/s (100LFM) 6 NC 4 2 0 0 20 40 60 80 O 10 AMBIENT TEMPERATURE, TA C 8 1m/s (200LFM) 6 0.5m/s (100LFM) 4 NC 2 0 0 20 40 60 80 100 O AMBIENT TEMPERATURE, TA C Figure 19. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 14.0 Vdc, Vo=0.75Vdc). Figure 22. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 14.0 Vdc, Vo=5.0 Vdc). OUTPUT CURRENT, Io (A) 12 10 8 1m/s (200LFM) 0.5m/s (100LFM) 6 NC 4 2 0 0 20 40 60 80 100 O AMBIENT TEMPERATURE, TA C Figure 20. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 14.0Vdc, Vo=1.8 Vdc). OUTPUT CURRENT, Io (A) 12 10 1m/s (200LFM) 8 0.5m/s (100LFM) 6 NC 4 2 0 0 20 40 60 80 100 O AMBIENT TEMPERATURE, TA C Figure 21. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 14.0Vdc, Vo=3.3 Vdc). LINEAGE POWER 9 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Test Configurations Design Considerations CURRENT PROBE TO OSCILLOSCOPE The ATL010A0X43-SR module should be connected to a low-impedance source. A highly inductive source can affect the stability of the module. An input capacitance must be placed directly adjacent to the input pin of the module, to minimize input ripple voltage and ensure module stability. LTEST VIN(+) BATTERY 1μH CIN CS 1000μF Electrolytic 2x100μF Tantalum E.S.R.<0.1Ω @ 20°C 100kHz COM NOTE: Measure input reflected ripple current with a simulated source inductance (LTEST) of 1μH. Capacitor CS offsets possible battery impedance. Measure current as shown above. Figure 23. Input Reflected Ripple Current Test Setup. COPPER STRIP In a typical application, 4x47 µF low-ESR tantalum capacitors (AVX part #: TPSE476M025R0100, 47µF 25V 100 mΩ ESR tantalum capacitor) will be sufficient to provide adequate ripple voltage at the input of the module. To minimize ripple voltage at the input, low ESR ceramic capacitors are recommended at the input of the module. Figure 26 shows input ripple voltage (mVpp) for various outputs with 4x47 µF tantalum capacitors and with 4x22 µF ceramic capacitor (TDK part #: C4532X5R1C226M) at full load. RESISTIVE LOAD 1uF . 10uF 300 SCOPE COM GROUND PLANE NOTE: All voltage measurements to be taken at the module terminals, as shown above. If sockets are used then Kelvin connections are required at the module terminals to avoid measurement errors due to socket contact resistance. Figure 24. Output Ripple and Noise Test Setup. Input Ripple Voltage (mVp-p) VO (+) Input Filtering 250 200 150 100 Tantalum 50 Ceramic 0 0 Rdistribution Rcontact Rcontact VIN(+) VO Rdistribution RLOAD VO VIN Rcontact Rcontact COM 1 2 3 4 5 Rdistribution Output Voltage (Vdc) Figure 26. Input ripple voltage for various output with 4x22 µF polymer and 4x47 µF ceramic capacitors at the input (full load). Rdistribution COM NOTE: All voltage measurements to be taken at the module terminals, as shown above. If sockets are used then Kelvin connections are required at the module terminals to avoid measurement errors due to socket contact resistance. Figure 25. Output Voltage and Efficiency Test Setup. VO. IO Efficiency η = LINEAGE POWER VIN. IIN x 100 % 10 6 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Design Considerations (continued) Safety Considerations Output Filtering For safety agency approval the power module must be installed in compliance with the spacing and separation requirements of the end-use safety agency standards, i.e., UL 60950-1, CSA C22.2 No. 60950-1-03, and VDE 0850:2001-12 (EN60950-1) Licensed. The ATL010A0X43-SR module is designed for low output ripple voltage and will meet the maximum output ripple specification with 1 µF ceramic and 10 µF tantalum capacitors at the output of the module. However, additional output filtering may be required by the system designer for a number of reasons. First, there may be a need to further reduce the output ripple and noise of the module. Second, the dynamic response characteristics may need to be customized to a particular load step change. For the converter output to be considered meeting the requirements of safety extra-low voltage (SELV), the input must meet SELV requirements. The power module has extra-low voltage (ELV) outputs when all inputs are ELV. To reduce the output ripple and improve the dynamic response to a step load change, additional capacitance at the output can be used. Low ESR polymer and ceramic capacitors are recommended to improve the dynamic response of the module. For stable operation of the module, limit the capacitance to less than the maximum output capacitance as specified in the electrical specification table. LINEAGE POWER 11 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Feature Description Remote On/Off Overtemperature Protection The ATL010A0X43-SR power modules feature an On/Off pin for remote On/Off operation. The ATL010A0X43-SR modules feature positive on/off logic. Positive Logic On/Off signal, turns the module ON during a logic High on the On/Off pin and turns the module OFF during a logic Low. To provide over temperature protection in a fault condition, the unit relies upon the thermal protection feature of the controller IC. The unit will shutdown if the o thermal reference point Tref, exceeds 125 C (typical), but the thermal shutdown is not intended as a guarantee that the unit will survive temperatures beyond its rating. The module will automatically restart after it cools down. For positive logic modules, the circuit configuration for using the On/Off pin is shown in Figure 27. The On/Off pin is an open collector/drain logic input signal (Von/Off) that is referenced to ground. During a logic-high (On/Off pin is pulled high internal to the module) when the transistor Q1 is in the Off state, the power module is ON. Maximum allowable leakage current of the transistor when Von/off = VIN,max is 10µA. Applying a logic-low when the transistor Q1 is turned-On, the power module is OFF. During this state VOn/Off must be less than 0.3V. When not using positive logic On/off pin, leave the pin unconnected or tie to VIN. MODULE VIN+ R2 Output Voltage Programming The output voltage of the ATL010A0X43-SR module can be programmed to any voltage from 0.75Vdc to 5.0Vdc by connecting a resistor (shown as Rtrim in Figure 28) between Trim and GND pins of the module. Without an external resistor between Trim and GND pins, the output of the module will be 0.7525Vdc. To calculate the value of the trim resistor, Rtrim for a desired output voltage, use the following equation: ⎡ 10500 ⎤ Rtrim = ⎢ − 1000⎥ Ω ⎣Vo − 0.7525 ⎦ Rtrim is the external resistor in Ω Vo is the desired output voltage ON/OFF I ON/OFF + VON/OFF Q2 R1 PWM Enable For example, to program the output voltage of the ATL010A0X43-SR module to 1.8V, Rtrim is calculated as follows: ⎤ ⎡ 10500 − 1000⎥ ⎦ ⎣1.8 − 0.75 R3 Q1 Rtrim = ⎢ Q3 CSS Rtrim = 9.024 kΩ R4 GND _ V IN(+) V O(+) Vout Figure 27. Remote On/Off Implementation. ON/OFF To provide protection in a fault (output overload) condition, the unit is equipped with internal current-limiting circuitry and can endure current limiting continuously. At the point of current-limit inception, the unit enters hiccup mode. The unit operates normally once the output current is brought back into its specified range. The typical average output current during hiccup is 3 A. LOAD TRIM Overcurrent Protection R trim GND Figure 28. Circuit configuration for programming output voltage using an external resistor. Input Undervoltage Lockout At input voltages below the input undervoltage lockout limit, module operation is disabled. The module will begin to operate at an input voltage above the undervoltage lockout turn-on threshold. LINEAGE POWER 12 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Feature Descriptions (continued) Vo Table 1 provides Rtrim values required for some common output voltages Rmargin-down Austin Lynx or Lynx II Series Table 1 Q2 VO, set (V) Rtrim (KΩ) 0.7525 Open 1.2 22.46 1.5 13.05 1.8 9.024 2.5 5.009 3.3 3.122 5.0 1.472 By using a 1% tolerance trim resistor, set point tolerance of ±2% is achieved as specified in the electrical specification. The POL Programming Tool, available at www.lineagepower.com under the Design Tools section, helps determine the required external trim resistor needed for a specific output voltage. Trim Rmargin-up Rtrim Q1 GND Figure 29. Circuit Configuration for margining Output voltage. The amount of power delivered by the module is defined as the voltage at the output terminals multiplied by the output current. When using the trim feature, the output voltage of the module can be increased, which at the same output current would increase the power output of the module. Care should be taken to ensure that the maximum output power of the module remains at or below the maximum rated power (Pmax = Vo,set x Io,max). Voltage Margining Output voltage margining can be implemented in the ATL010A0X43-SR module series by connecting a resistor, Rmargin-up, from the Trim pin to the ground pin for margining-up the output voltage and by connecting a resistor, Rmargin-down, from the Trim pin to the Output pin for margining-down. Figure 30 shows the circuit configuration for output voltage margining. The POL Programming Tool, available at www.lineagepower.com under the Design Tools section, also calculates the values of Rmargin-up and Rmargin-down for a specific output voltage and % margin. Please consult your local Lineage Power technical representative for additional details. LINEAGE POWER 13 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Feature Descriptions (continued) Remote Sense Voltage Sequencing The ATL010A0X43-SR power modules have a Remote Sense feature to minimize the effects of distribution losses by regulating the voltage at the Remote Sense pin (See Figure 30). The voltage between the Sense pin and Vo pin must not exceed 0.5V. The ATL010A0X43-SR series of modules include a TM sequencing feature, EZ-SEQUENCE that enables users to implement various types of output voltage sequencing in their applications. This is accomplished via an additional sequencing pin. When not using the sequencing feature, either tie the SEQ pin to VIN or leave it unconnected. When an analog voltage is applied to the SEQ pin, the output voltage tracks this voltage until the output reaches the set-point voltage. The SEQ voltage must be set higher than the set-point voltage of the module. The output voltage follows the voltage on the SEQ pin on a one-to-one volt basis. By connecting multiple modules together, customers can get multiple modules to track their output voltages to the voltage applied on the SEQ pin. The amount of power delivered by the module is defined as the output voltage multiplied by the output current (Vo x Io). When using Remote Sense, the output voltage of the module can increase, which if the same output is maintained, increases the power output by the module. Make sure that the maximum output power of the module remains at or below the maximum rated power. When the Remote Sense feature is not being used, connect the Remote Sense pin to the output pin. R d istrib u tio n R co n ta c t R c o nta ct V IN (+ ) R d istrib utio n VO S e n se 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 or tied to VIN for positive logic modules) so that the module is ON by default. After applying input voltage to the module, a minimum of 10msec delay is required before applying voltage on the SEQ pin. During this time, potential of 50mV (± 10 mV) is maintained on the SEQ pin. After 10msec delay, an analog voltage is applied to the SEQ pin and the output voltage of the module will track this voltage on a one-to-one volt bases until output reaches the set-point voltage. To initiate simultaneous shutdown of the modules, the SEQ pin voltage is lowered in a controlled manner. Output voltage of the modules tracks the voltages below their set-point voltages on a one-to-one basis. A valid input voltage must be maintained until the tracking and output voltages reach ground potential. R LO AD R d istrib u tio n R co n ta c t R c o nta ct COM R d istrib utio n COM Figure 30. Remote sense circuit configuration TM When using the EZ-SEQUENCE 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 TM during start-up. When using the EZ-SEQUENCE 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 TM during start-up is required, the EZ-SEQUENCE feature must be disabled. For additional guidelines on using EZSEQUENCETM feature of Austin LynxTM II, contact the Lineage Power technical representative for preliminary application note on output voltage sequencing using Austin Lynx II series. LINEAGE POWER 14 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Thermal Considerations Power modules operate in a variety of thermal environments; however sufficient cooling should always be provided to help ensure reliable operation. Considerations include ambient temperature, airflow, module power dissipation, and the need for increased reliability. A reduction in the operating temperature of the module will result in an increase in reliability. The thermal data presented here is based on physical measurements taken in a wind tunnel. The test set-up is shown in Figure 32. Note that the airflow is parallel to the short axis of the module as shown in figure 31. The derating data applies to airflow in either direction of the module’s short axis. 25.4_ (1.0) Wind Tunnel PWBs Power Module 76.2_ (3.0) x 8.3_ (0.325) Probe Loc ation for measuring airflow and ambient temperature Air flow Tref1 Tref2 Bottom View Figure 32. Thermal Test Set-up. Figure 31. Temperature measurement locations Tref1 and Tref2. Heat Transfer via Convection The thermal reference points, Tref1 and Tref2 used in the specifications are shown in Figure 31. For reliable operation these temperatures should not exceed 115oC. The output power of the module should not exceed the rated power of the module (Vo,set x Io,max). Increased airflow over the module enhances the heat transfer via convection. Thermal derating curves showing the maximum output current that can be delivered at different local ambient temperatures (TA) for airflow conditions ranging from natural convection and up to 2m/s (400 ft./min) are shown in the Characteristics Curves section. Please refer to the Application Note “Thermal Characterization Process For Open-Frame BoardMounted Power Modules” for a detailed discussion of thermal aspects including maximum device temperatures. LINEAGE POWER Layout Considerations Copper paths must not be routed beneath the power module. For additional layout guide-lines, refer to the FLTR100V10 application note. 15 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Mechanical Outline Dimensions are in millimeters and (inches). Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated] x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in.) Top View Co-planarity (max): 0.20 [0.008] Side View Bottom View PIN FUNCTION 1 On/Off 2 VIN 3 SEQ 4 GND 5 VOUT 6 Trim 7 Sense MPS176595 LINEAGE POWER 16 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Recommended Pad Layout Dimensions are in millimeters and (inches). Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated] x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in.) LINEAGE POWER 17 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Packaging Details The ATL010A0X43-SR modules are supplied in tape & reel as standard. Modules are shipped in quantities of 250 modules per reel. All Dimensions are in millimeters and (in inches). Reel Dimensions: Outside Dimensions: Inside Dimensions: Tape Width: LINEAGE POWER 330.2 mm (13.00) 177.8 mm (7.00”) 44.00 mm (1.732”) 18 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Surface Mount Information Pick and Place The ATL010A0X43-SR modules use an open frame construction and are designed for a fully automated assembly process. The modules are fitted with a label designed to provide a large surface area for pick and place operations. The label meets all the requirements for surface mount processing, as well as safety standards, and is able to withstand reflow o temperatures of up to 300 C. The label also carries product information such as product code, serial number and the location of manufacture. instructions may result in the failure of or cause damage to the modules, and can adversely affect long-term reliability. In a conventional Tin/Lead (Sn/Pb) solder process peak reflow temperatures are limited to less than 235oC. Typically, the eutectic solder melts at 183oC, wets the land, and subsequently wicks the device connection. Sufficient time must be allowed to fuse the plating on the connection to ensure a reliable solder joint. There are several types of SMT reflow technologies currently used in the industry. These surface mount power modules can be reliably soldered using natural forced convection, IR (radiant infrared), or a combination of convection/IR. For reliable soldering the solder reflow profile should be established by accurately measuring the modules CP connector temperatures. 300 P eak Temp 235oC Figure 33. Pick and Place Location. REFLOW TEMP (°C) 250 150 So ak zo ne 30-240s 100 The ATL010A0X43-SR power modules are lead free modules and can be soldered either in a lead-free solder process or in a conventional Tin/Lead (Sn/Pb) process. It is recommended that the customer review data sheets in order to customize the solder reflow profile for each application board assembly. The following instructions must be observed when soldering these units. Failure to observe these LINEAGE POWER 0 REFLOW TIME (S) Figure 34. Reflow Profile for Tin/Lead (Sn/Pb) process. 240 235 MAX TEMP SOLDER (°C) Tin Lead Soldering Tlim above 205oC P reheat zo ne max 4oCs -1 50 Nozzle Recommendations The module weight has been kept to a minimum by using open frame construction. Even so, these modules have a relatively large mass when compared to conventional SMT components. Variables such as nozzle size, tip style, vacuum pressure and placement speed should be considered to optimize this process. The minimum recommended nozzle diameter for reliable operation is 6mm. The maximum nozzle outer diameter, which will safely fit within the allowable component spacing, is 9 mm. Oblong or oval nozzles up to 11 x 9 mm may also be used within the space available. Co o ling zo ne 1-4oCs -1 Heat zo ne max 4oCs -1 200 230 225 220 215 210 205 200 0 10 20 30 40 50 60 Figure 35. Time Limit Curve Above 205oC for Tin/Lead (Sn/Pb) process. 19 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Surface Mount Information (continued) 300 Lead Free Soldering Peak Temp 260°C Reflow Temp (°C) The –Z version ATL series SMT modules are leadfree (Pb-free) and RoHS compliant and are both forward and backward compatible in a Pb-free and a SnPb soldering process. Failure to observe the instructions below may result in the failure of or cause damage to the modules and can adversely affect long-term reliability. Per J-STD-020 Rev. C 250 200 150 * Min. Time Above 235°C 15 Seconds Heating Zone 1°C/Second Cooling Zone *Time Above 217°C 60 Seconds 100 50 Pb-free Reflow Profile 0 Reflow Time (Seconds) Power Systems will comply with J-STD-020 Rev. C (Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface Mount Devices) for both Pb-free solder profiles and MSL classification procedures. This standard provides a recommended forced-air-convection reflow profile based on the volume and thickness of the package (table 4-2). The suggested Pb-free solder paste is Sn/Ag/Cu (SAC). The recommended linear reflow profile using Sn/Ag/Cu solder is shown in Fig. 36. Figure 36. Recommended linear reflow profile using Sn/Ag/Cu solder. MSL Rating The ATL010A0X43-SR module has an MSL rating of 2. Storage and Handling The recommended storage environment and handling procedures for moisture-sensitive surface mount packages is detailed in J-STD-033 Rev. A (Handling, Packing, Shipping and Use of Moisture/Reflow Sensitive Surface Mount Devices). Moisture barrier bags (MBB) with desiccant are required for MSL ratings of 2 or greater. These sealed packages should not be broken until time of use. Once the original package is broken, the floor life of the product at conditions of ≤ 30°C and 60% relative humidity varies according to the MSL rating (see J-STD-033A). The shelf life for dry packed SMT packages will be a minimum of 12 months from the bag seal date, when stored at the following conditions: < 40° C, < 90% relative humidity. Post Solder Cleaning and Drying Considerations Post solder cleaning is usually the final circuit-board assembly process prior to electrical board testing. The result of inadequate cleaning and drying can affect both the reliability of a power module and the testability of the finished circuit-board assembly. For guidance on appropriate soldering, cleaning and drying procedures, refer to Board Mounted Power Modules: Soldering and Cleaning Application Note (AN04-001). LINEAGE POWER 20 Data Sheet April 1, 2008 ATL010A0X43-SR Non Isolated Module 12Vdc, Programmable: 9 – 18Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current Ordering Information Please contact your Lineage Power Sales Representative for pricing, availability and optional features. Table 2. Device Codes Output Voltage Output Current Efficiency 3.3V@ 10A On/Off Logic Connector Type Comcode Device Code Input Voltage Range ATL010A0X43-SR 9 – 18Vdc 0.75 – 5.5Vdc 10 A 93.0% Positive SMT 108996154 ATL010A0X43-SRZ 9 – 18Vdc 0.75 – 5.5Vdc 10 A 93.0% Positive SMT CC109107851 -Z refers to RoHS-compliant codes Asia-Pacific Headquarters Tel: +65 6416 4283 World Wide Headquarters Lineage Power Corporation 3000 Skyline Drive, Mesquite, TX 75149, USA +1-800-526-7819 (Outside U.S.A.: +1-972-284-2626) www.lineagepower.com e-mail: [email protected] Europe, Middle-East and Africa Headquarters Tel: +49 89 6089 286 India Headquarters Tel: +91 80 28411633 Lineage Power reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. © 2008 Lineage Power Corporation, (Mesquite, Texas) All International Rights Reserved. LINEAGE POWER 21 Document No: DS05-008 ver.1.21 PDF name: atl010a0x43-sr_ds.pdf