ALQ15XX48X ASTEC | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 19

Technical content

(Open Frame Dual Output Quarter Brick) MODEL: ALQ15 SERIES SHEET 1 OF 19 MARCH 4, 2004 - REVISION 01 ALQ15 Dual Output Open-Frame DC-DC Converter Module Industry Standard ¼ Brick: 36V-75V Input / 60W Output Power The ALQ15 series is Astec's latest dual output; high -density converter offering that comes in an industry standard ¼ brick open-frame package. With its independently controlled output rails, the module effectively minimizes cross regulation, which has been an issue to most dual converters available in the market. The ALQ15 series has been designed to deliver 60W of clean, well -regulated, low noi se DC power for today's demanding loads at respectable efficiency levels: 3.3V -2.5V 2.5V/1.5V, with each output rail able to deliver 15A max (5V@12A). The module comes with standard feature sets such as output enable with positive or negative options; output voltage -adjust; over current, over voltage and over temperature protection. In addition, it is also being offered at both 5mm (std) and 3.7mm pin lengths. Special Features

  • Tight Regulation
  • Low Ripple and Noise at < 30mVPK-PK
  • Industry Standard ¼ Brick Footprint
  • Positive and Negative Enable Options
  • Regulation to Zero Load
  • High Capacitive Load Start-up
  • Fixed Switching Frequency
  • Output Trim
  • Input Under-Voltage Lockout
  • Basic Insulation Environmental Specifications
  • -40ºC to 85ºC Operating Temperature
  • -55ºC to 125ºC Storage Temperature
  • Designed for > 1 million hours MTBF Electrical Parameters Input Input Range 36-75 VDC Input Surge 100V / 100ms Efficiency 5.0V/3.3V @ 89.5% (Typ at 60W) 3.3V/2.5V @ 87.7% 3.3V/1.8V @ 86.5% 2.5V/1.5V @ 84.0% Control Enable TTL compatible (Positive and Negative Enable Options) Output Load Current 15A max per channel (60W max) 5V @ 12A max Line/Load Regulation < 1% VO (Typ) Ripple and Noise 30mVPK-PK Output Voltage Adjust Range ±10% Vo Transient Response 3% VO deviation max (3.3V) 50% to 75% Load Change 220 msec typical settling time (for 3.3V) Over Current Protection 130% IO,max typical Safety UL + cUL 60950, Recognized EN60950 through TUV-PS CB Report

(Open Frame Dual Output Quarter Brick) MODEL: ALQ15 SERIES SHEET 2 OF 19 MARCH 4, 2004 - REVISION 01 ALQ15 SERIES MODEL NAME CONSTRUCTION VOUT / IOUT ALQ15AF48 Open Frame 5.0V-12A / 3.3V-15A ALQ15FG48 Open Frame 3.3V-15A / 2.5V-15A ALQ15FG48N-6D* Open Frame 3.3V-15A / 2.5V-15A ALQ15FY48 Open Frame 3.3V-15A / 1.8V-15A ALQ15GM48 Open Frame 2.5V-15A / 1.5V-15A OPTIONS: SUFFIX Negative Enable: "N" Positive Enable: No suffix 3.7mm (nominal) Pin Length: "-6" * Check Part Numbering Scheme on Table 2 and the corresponding external trim function on Table 1-D

(Open Frame Dual Output Quarter Brick) MODEL: ALQ15 SERIES SHEET 3 OF 19 MARCH 4, 2004 - REVISION 01 Electrical Specifications STANDARD TEST CONDITION on a single module unless otherwise specified. TA: 25ºC (Ambient Air) +VIN: PIN 1 48V ± 2V ENABLE: PIN 2 Open (Positive Enable) -VIN: PIN 3 Return Pin for +VIN +VOUT2: PIN 4 Connect to Load 2 -VOUT: PIN 5 Return Pin for Load 1 & 2 TRIM: PIN 6 Open +VOUT1: PIN 7 Connect to Load 1 Airflow Refer to the appropriate derating curve ABSOLUTE MAXIMUM RATINGS Stresses in excess of the absolute maximum ratings can cause permanent damage to the converter. Functional operation of the device is converter is not implied at these or any other conditions in excess of those given in the operational section of the specs. Exposure to abso lute maximum ratings for extended period can adversely affect device reliability. Parameter Device Symbol Min Typ Max Unit Input Voltage: Continuous Transient(100ms) : All All VIN VI N, trans 100 Vdc Vdc Operating Ambient Temperature1 All TA -40 - +85 ºC Storage Temperature All TSTG -55 - 125 ºC Operating Humidity All - - - 85 % I/O Isolation All - 1500 - - Vdc Maximum Enable Voltage All 25 Vdc NOTE: 1. Power Derating applies. Refer to Figures 15 to 18.

(Open Frame Dual Output Quarter Brick) MODEL: ALQ15 SERIES SHEET 4 OF 19 MARCH 4, 2004 - REVISION 01 Electrical Specifications (continued) INPUT SPECIFICATION Parameter Device Symbol Min Typ Max Unit Operating Input Voltage All VIN 36 48 75 VDC Maximum Input Current2 Conditions: VIN = between 0 to VIN,min PO = PO,max; TA = 25 ºC AF FG FY GM IIN,max - 2.20 2.20 2.20 2.27 A Input Reflected Ripple Current3 Conditions: PO = PO,max; TA = 25 ºC All II1/ II2 - 10 20 mAPK-PK Standing Loss Condition: VIN = VIN,nom; TA = 25 ºC All - - - 3.0 W recommended. 3. See Figure 1 for Input Reflected Ripple Current Test Setup. OUTPUT SPECIFICATIONS Parameter Device Symbol Min Typ Max Unit Voltage Setpoint Conditions: VI = VIN,nom; TA = 25 ºC; VO1: IO1 = IO,max; PO = 60W VO2: IO2 = IO,max; PO = 60W AF FG FY GM VO1/ V O2 VO1/ V O2 VO1/ V O2 VO1/ V O2 4.93 / 3.25 3.25 / 2.46 3.25 / 1.76 2.46 / 1.47 5.00 / 3.30 3.30 / 2.50 3.30 / 1.80 2.50 / 1.50 5.08 / 3.35 3.35 / 2.54 3.35 / 1.84 2.54 / 1.53 Vdc Load Current 5.0V 3.3V 2.5V 1.8V 1.5V IO1/IO2 IO1/IO2 IO1/IO2 IO1/IO2 IO1/IO2 12.0 15.0 15.0 15.0 15.0 A Combined Output Power PO = PO1 + PO2 AF FG FY GM PO PO PO PO W Line Regulation: Conditions: VIN = VIN, min to VIN, max; IO1 = IO, max, IO2 = IO, min VIN = VIN, min to VIN, max; IO1 = IO, min, IO2 = IO, max 5.0V 3.3V 2.5V 1.8V 1.5V 0.06 0.03 0.03 0.03 0.03 0.15 0.10 0.10 0.10 0.10 %Vo

(Open Frame Dual Output Quarter Brick) MODEL: ALQ15 SERIES SHEET 5 OF 19 MARCH 4, 2004 - REVISION 01 Electrical Specifications (continued) OUTPUT SPECIFICATIONS Parameter Device Symbol Min Typ Max Unit Load Regulation4 Conditions: IO = 1A to IO,max; VIN =VIN,nom 5.0V 3.3V 2.5V 1.8V 1.5V 0.06 0.12 0.20 0.26 0.33 0.40 0.60 0.70 0.90 1.00 %Vo Cross Regulation4 Conditions: VIN = VIN,nom, IO = IO,max All - - 0.20 %Vo Temperature Conditions: TA = -40 ºC to +65 ºC; VIN = VIN,nom; IO = IO,max All 1.50 %Vo Output Ripple and Noise: Peak-to-Peak5 Conditions: IO = IO,max; VIN =VIN,nom; BW = 20 MHz; TA =25 oC 5.0 3.3 2.5 1.8 1.5 mVPK-PK External Load Capacitance6 All - - 10000 µF Over Current Limit Inception Conditions: Vo = 90% VO,nom; IO2 = IO,min; VIN = VIN,nom Characteristics: Hiccup mode, auto-recovery All 5.0V IO,OCP IO,OCP 16.5 13.2 A Output Short Circuit Conditions: VIN = VIN,nom; IO2 = 0A TA = 25 ºC All IOPK IORMS IODC IINS 150 APK ARMS A mA Efficiency Conditions: VIN = VIN,nom; TA = 25 ºC PO = PO,max, balanced current loading AF FG FY GM η η η η 89.0 87.0 86.0 83.0 89.5 87.7 86.5 84.0 90.5 88.5 87.5 85.0 Switching Frequency Note: Can be determined from output ripple waveform All - - 300 375 KHz NOTE: 4. Channel under test shall follow the specified conditions while the other channel is set to min load, 0A. 5. Channel under test shall be set to full load with the other channel set to IO, min - See Fig 2 for the recommended output ripple and noise test setup. 6. Refer to YSC plots on Fig 19 and 20 to determine loop stability at various output load impedance.

(Open Frame Dual Output Quarter Brick) MODEL: ALQ15 SERIES SHEET 6 OF 19 MARCH 4, 2004 - REVISION 01 Electrical Specifications (continued) OUTPUT SPECIFICATIONS Parameter Device Symbol Min Typ Max Unit Dynamic Response7 Conditions: Δ IO/Δ t = 0.15A/µs ; VIN = VIN,nom ; TA = 25°C Peak Voltage Deviation Load Change: IO = 50% to 75% or 75% to 50% IO,max 5.0V 3.3V 2.5V 1.8V 1.5V 0.8 1.3 1.6 2.3 2.8 2.0 3.0 3.0 5.0 5.0 %Vo Transient Settling Time Note: VO,nom (ref.) (from ref. to 0.1Δ VPK) 5.0V 3.3V 2.5V 1.8V 1.5V 360 220 210 145 136 500 500 500 300 300 µsec Turn-On Time Conditions: VIN = VIN,min; IO1 = IO,max, IO2 = IO,min; TA = 25°C Note: VO1 within 1% AF FG FY GM msec Output Voltage Overshoot Conditions: VIN = VIN,nom; TA = 25°C; PO = 0W 5.0V 3.3V 2.5V 1.8V 1.5V %VO NOTE: 7. Dynamic response tested with 10uF-aluminum and 1uF-tantalum capacitors across the load. FEATURE SPECIFICATION Parameter Device Symbol Min Typ Max Unit Undervoltage Lockout Turn-on Point Turn-off Point All All 35.0 34.0 36.0 V V Output Voltage Adjustment Range Conditions: VIN = VIN,nom; TA = 25°C VO1: IO1 = IO,max, IO2 = IO,min VO2: IO1 = IO,min; IO2 = IO,max Note: Tolerance = ± 1% All - 90 - 110 %VO

(Open Frame Dual Output Quarter Brick) MODEL: ALQ15 SERIES SHEET 7 OF 19 MARCH 4, 2004 - REVISION 01 Electrical Specifications (continued) FEATURE SPECIFICATION Parameter Device Symbol Min Typ Max Unit Enable Pin Voltage POSITIVE LOGIC Logic Low: Module OFF Logic High: Module ON w/o N- Suffix VENABLE VENABLE 1.5 2.2 5.0 V V NEGATIVE LOGIC Logic Low: Module ON Logic High: Module OFF Suffix VENABLE VENABLE 1.5 2.2 5.0 V V Enable Pin Current Logic Low Logic High: (ILKG at VENABLE = 5V) All All IENABLE IENABLE 1.0 mA µA Module Output Voltage at Logic High (Negative Enable) at Logic Low (Positive Enable) Suffix w/o N- Suffix VO VO 1.2 1.2 V V Output Over Voltage Clamp Conditions: VIN = VIN,nom; TA = 25°C Characteristics: Hiccup mode; auto-tracking wrt Vout trim 5.0V 3.3V 2.5V 1.8V 1.5V VO,CLAMP VO,CLAMP VO,CLAMP VO,CLAMP VO,CLAMP 5.7 3.8 2.8 2.0 1.7 6.0 3.9 3.0 2.2 1.8 6.5 4.3 3.4 2.4 2.1 V V V V V Over-Temperature Shutdown Note: 1. Tcomp(max) < 140 °C 2. Measured in the vicinity of pin 3 and R29 All TB 110 115 120 °C ISOLATION SPECIFICATION Parameter Device Symbol Min Typ Max Unit Isolation Capacitance All - - 680 - pF Isolation Resistance All - 10 - - MΩ

(Open Frame Dual Output Quarter Brick) MODEL: ALQ15 SERIES SHEET 10 OF 19 MARCH 4, 2004 - REVISION 01 Basic Operation and Features (continued) TABLE 1-C TABLE 1-D ALQ15GM48 (2.5V / 1.5V) ALQ15FG48N-6D* ? [%} RTRIM-UP [kO] ? [%} RTRIM-DOWN [kO] ? [%} RTRIM-UP [kO] ? [%} RTRIM-DOWN [kO] +1 70.46 -1 70.31 +1 46.84 -1 66.47 +2 29.65 -2 32.75 +2 20.82 -2 27.32 +3 17.00 -3 19.42 +3 12.14 -3 15.55 +4 10.83 -4 12.58 +4 7.81 -4 9.87 +10 0.00 -10 0.00 +10 0.00 -10 0.00 * DI/DT’s QD48T025033 Trim Equivalent ALQ15 standard trim utilizes approximately similar range of trim resistors for both RTRIM-UP and RTRIM-DOWN to adjust the outputs. This facilitates ease of resistor selection and contributes to a decreased number of parts for customer inventory if the TRIM pin is being utilized. OUTPUT ENABLE The ALQ15 comes with an Enable pin (PIN 2), which is primarily used to turn ON/OFF the converter. Both a Positive (no part number suffix required) and a Negative (suffix “N” required) Enable Logic options are being offered. Please refer to Table 2 for the Part Numbering Scheme. For Positive Enable, the converter is turned on when the Enable pin is at logic HIGH or left open. The unit turns off when the Enable pin is at logic LOW or directly connected to -VIN. On the other hand, the Negative Enable version turns on when the Enable pin is at logic LOW or directly connected to -VIN. The unit turns off when the Enable pin is at Logic HIGH. OUTPUT OVER VOLTAGE PROTECTION (OVP) The Over Voltage Protection circuit will shut down the entire converter if any of the two output voltages exceeds the OVP threshold limits. The converter will automatically recover once the fault is removed. OVER CURRENT PROTECTION (OCP) The Over Current Protection circuit will shutdown the converter if any of the load current of either output reaches the OCP threshold limits. The unit will automatically recover once the over current condition is removed. See Figure 12 for typical output characteristic under an over current condition. OVER TEMPERATURE PROTECTION (OTP) The Over Temperature Protection circuit will shutdown the converter once the sensed location reaches the OTP range. This feature prevents the unit from overheating and consequently going into thermal runaway, which may further damage the converter and the end system. Such overheating may be an effect of operation outside the given power thermal derating conditions. Restart is possible once the temperature of the sensed location drops to less than 110 °C.

0 LFM

100 LFM

200 LFM

300 LFM

400 LFM

500 LFM

600 LFM

Figure 15. Total Output Power (balanced load: Figure 16. Total Output Power (balanced load:

Figure 17. Total Output Power (balanced load: Figure 18. Total Output Power (balanced load:

Figure 19. YSC Plots of 3V3 and 2V5 Output Channels.

Figure 20. YSC Plots of 1V8 and 1V5 Output Channels.

2 ENABLE 6 TRIM

NOTE: Pin diameters at ∅ = 0.04" [1.02 mm] nominal. Figure 21. ALQ15 series mechanical outline ( inches [(mm ]).

converter pins should be preheated for 20-30 seconds at 110°C and wave soldered at 260°C for less than 10 seconds. TABLE 2. Part Numbering information.