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TM
Advance Data Sheet: Maxeta iFA Series
Maxeta iFA Series DC-DC Power Modules
24V Input, 28V Output, 602W Full Brick
The Maxeta iFA series power modules are
ideally suited for wireless applications to power
RF power amplifiers. With a typical 89% full
load efficiency (90% at 80% load), a power
density of 108W per cubic inch and a total
power and current output capability of 602W
and 21.5A respectively, the Maxeta Series
offers the highest efficiency, power densi
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TM Advance Data Sheet: Maxeta iFA Series Ordering information: Product Package Platform Input Output Output Main # Of Safety Feature Set Identifier Size Voltage Current/ Units Output Outputs Class Power Voltage i F A 24 021 A 280 V - 0 00 00 – Standard TDK Innoveta Full Brick Standard Maxeta 19 - 36V 021 – 21.5 Amps 280 – 28V Single >00 – See option table Feature OVP Out Pin Length PEM Stud Special Code Set Replaces Style Power Good 00 No 0.145” Threaded No
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TM Advance Data Sheet: Maxeta iFA Series Mechanical Specification: Unless otherwise specified, tolerances are: x.x ± 0.5 mm [x.xx ± 0.02 in.], x.xx ± 0.25 mm [x.xxx ± 0.010 in.]. 10 9 1 2 8 3 7 6 4 5 12 14 16 13 15 17 Recommended hole pattern (top view) ℡ (877) 498-0099 ©2005 TDK Innoveta Inc. 3/18 iFA Advance Datasheet 6/6/2005
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TM Advance Data Sheet: Maxeta iFA Series Pin Assignment: PIN FUNCTION PIN FUNCTION PIN FUNCTION 1 ON/OFF (+) 7 Vout (-) 13 PWR GOOD 2 ON/OFF (-) 8 Vout (+) 14 Parallel Control 3 Vin (+) 9 Vout (+) 15 TRIM 4 Vin (-) 10 Vout (+) 16 SENSE (+) 5 Vout (-) 11 Not present 17 SENSE (-) 6 Vout (-) 12 AUX OUT 18 * Pin base material is copper. The maximum module weight is 250g (8.8 oz). Heatsink Offering: TDK Innoveta Height Orientation Overall Part Number Module Height
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TM Advance Data Sheet: Maxeta iFA Series Absolute Maximum Ratings: Stress in excess of Absolute Maximum Ratings may cause permanent damage to the device. Characteristic Min Max Unit Notes & Conditions Continuous Input Voltage -0.5 40 Vdc Transient Input Voltage --- 50 Vdc 100mS max. Isolation Voltage Input to Output --- 1500 Vdc Basic Insulation Input to Base-plate --- 1500 Vdc Basic Insulation Output to Base-plate --- 500 Vdc Operational Insulation S
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TM Advance Data Sheet: Maxeta iFA Series Electrical Data: iFA24021A280V- 000 through - 026: 28V, 21.5A, 602W Output Characteristic Min Typ Max Unit Notes & Conditions Output Voltage Initial Set-point 27.30 28 28.42 Vdc Vin=Vin,nom; Io=Io,max; Tc = 25˚C Output Voltage Tolerance 27.02 28.70 Vdc Over all rated input voltage, load, and temperature conditions to end of life Efficiency --- 89 --- % Vin=Vin,nom; Io=Io,max; Tc = 25˚C Line Regulation --- 20 56 mV Vin=Vin,min
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TM Advance Data Sheet: Maxeta iFA Series Electrical Characteristics: iFA24021A280V- 000 through - 026: 28V, 21.5A, 602W Output 93 90 91 80 89 70 87 60 50 85 40 83 30 81 20 79 10 77 0 75 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Output Current (A) Output Current (A) Vin = 19V Vin = 24V Vin = 36V Vin = 32V Vin = 19V Vin = 24V Vin = 36V Vin = 32V Typical Efficiency vs. Input Voltage and Load at Ta=25 °C Typical Power Dissipation v
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TM Advance Data Sheet: Maxeta iFA Series Electrical Characteristics: iFA24021A280V- 000 through - 026: 28V, 21.5A, 602W Output Output Ripple at Nominal Input Voltage and Full Load, Ta=25 °C Dynamic Load Response. Load step from 50% to 75% of full load Ch. 1: Vo Ch. 4: Io with 0.1A/uS (Vin=nominal). Ch.1: Vo Ch. 4: Io 40 35 30 25 20 15 10 5 0 14 16 18 20 22 24 26 28 30 32 34 36 Input Voltage (V) Io_min = 2.1A Io_mid = 10.6A Io_max = 21.1A Dynamic Load Transient. L
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TM Advance Data Sheet: Maxeta iFA Series Thermal Performance: iFA24021A280V- 000 through - 026: 28V, 21.5A, 602W Output 23 23 21 21 19 19 17 17 15 15 13 13 11 11 9 9 7 7 25 35 45 55 65 75 85 95 105 115 125 25 35 45 55 65 75 85 95 105 115 Ambient Temperature (C) Ambient Temperature (C) NC 0.3 m/s (60 LFM) 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) NC 0.3 m/s (60 LFM) 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 3.0 m/s (600 LFM) Max IMS Temp
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TM Advance Data Sheet: Maxeta iFA Series The cross section of the airflow passage is Thermal Management: rectangular with the space between the top of the module or heatsink (where applicable) An important part of the overall system and a parallel facing PCB is kept at a design process is thermal management; constant (0.5 in). The power module’s thermal design must be considered at all orientation with respect to the airflow levels to ensure good reliability and lifetime d
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TM Advance Data Sheet: Maxeta iFA Series Performance page for the power module of pins) as shown in the Heatsink Offering interest. In all conditions, the power module section. The heatsink kit contains four M3 x should be operated below the maximum 0.5 steel mounting screws and a precut operating temperature shown on thermal interface pad for improved thermal the derating curve. For improved design resistance between the power module and margins and enhanced system reliabi
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TM Advance Data Sheet: Maxeta iFA Series protection circuitry will latch the power Operating Information: module off once it detects the over-voltage condition as specified on the electrical data Output Over-Current Protection: The page. To remove the module from the power modules are equipped with current latched condition, either turn the input power limit, over-current slow hiccup, and over- off and back on or reset the remote ON/OFF current trip fast hiccup mode protectio
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TM Advance Data Sheet: Maxeta iFA Series FUSE Output Voltage Adjustment: The output +Vin voltage of the power module is adjustable by the user using an external resistor or by C1 R1 applying external voltage. However, when -Vin the output voltage is increased, the input voltage range is limited as shown in the following figure. SW +ON/OFF Vin Limit for Trim-up -ON/OFF I ON/OFF 115 110 ON/OFF Control from Input Side 105 An alternativ
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TM Advance Data Sheet: Maxeta iFA Series If the output voltage adjustment feature is In order to trim the output voltage from the not used, the Vout(+) pin should be shorted minimum value (-40% down) to the to the sense(+) pin and the Vout(-) pin maximum value (+10% up) in a linear should be shorted to the sense(-) pin by fashion, a fixed resistor, Rext, should be jumper wires. connected between the trim pin and the sense(-) pin while a 50KΩ variable resistor, Rv, shall be connecte
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TM Advance Data Sheet: Maxeta iFA Series The output voltage can also be adjusted that is pulled low during normal operation of within the same range by applying external the power module. The power good circuitry voltage at the trim pin via a buffer. In this will pull the power good pin below 1V while case, Vo_d can be approximately sinking a maximum sink current of 5mA. determined by the following formula: The maximum allowed voltage to the pin is 35V. In order for the power goo
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TM Advance Data Sheet: Maxeta iFA Series Auxiliary Bias Power (Optional): The iFA Reliability: series power modules provide an auxiliary output, which is referenced to the output The power modules are designed using sense (-) pin. It provides an output voltage Innoveta’s stringent design guidelines for between 7.5 and 13.5Vdc that can supply a component de-rating, product qualification, maximum current of 20mA. The auxiliary and design reviews. Early failures are bias ci
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TM Advance Data Sheet: Maxeta iFA Series Input/Output Ripple and Noise Measurements: L Li in n + + + + V V Vs s s C C1 1 C Ce ex xt t C C0 0 R R RL L Lo o oa a ad d d V Vi in n V Vo ou ut t - - - - G Gr ro ou un nd d P Pl la an ne e The input reflected ripple is measured with a current probe and oscilloscope. The ripple current is the current through the 15uH inductor, Lin, with esr ≤ 10 mΩ, feeding a capacitor, C1, esr ≤ 350 mΩ @ 100kHz, across the mod
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TM Advance Data Sheet: Maxeta iFA Series To preserve maximum flexibility, the power Warranty: modules are not internally fused. An external input line normal blow fuse with a TDK Innoveta’s comprehensive line of maximum value of 40A is required by safety power solutions includes efficient, high- agencies. density DC-DC converters. TDK Innoveta offers a three-year limited warranty. A lower value fuse can be selected based Complete warranty information is listed on upon
