MVT040A0X3-SRPHZ;中文规格书-Datasheet资料。TI公司的电源芯片。最大输出4

文件名称: MVT040A0X3-SRPHZ;中文规格书-Datasheet资料

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详细说明：MVT040A0X3-SRPHZ;中文规格书-Datasheet资料。TI公司的电源芯片。最大输出40A电流。Advance Data sheet 40A Analog mega lynx: Non-isolated DC-DC Power Module N。 vember17,2011 4.5-14. 4Vdc input; 0.6Vdc to 2Vdc output; 40A output current Electrical Specifications(continued) Parameter Device Symbol Min Typ Max Unit Output Voltage Set-point(with 0. 1% tolerance for external resistor used to set output voltage A O. set -1.0 +10% o. set Output Voltage(Over all operating input voltage, resistive load, and temperature conditions until end of life) -3.0 3.0%Vo. set Adjustment Range(selected by an external resistor Some output voltages may not be possible depending 0.6 2.0 Vd on the input voltage-see Feature Descriptions Section Remote Sense Range 0.5 Vdc Line (vIn=vin min to VIN. max Load (o=lo. in to lo. max) 10 Temperature( ref=TA min to TA. max All 0.4 o. set Output Ripple and Noise on nominal output dlo=lo. min to lo. max co=0.1μF∥22 ceramic capacitors Peak-to-Peak(5Hz to 20MHz bandwidth 100 RMS (5Hz to 20MHz bandwidth) 20 38 mV ithout the tunable Loop TBD ith the Tunable Loop EsR≥0.15mQ O. max TBD F EsR≥10mQ All O. max TBD F Output Current (in either sink or source mode) All 40 A Output Current Limit Inception(Hiccup Mode) TBD (current limit does not operate in sink mode) %l。mx Output Short-Circuit Current TBD (VoS250mV)( Hiccup Mode Efficiency Vo.set=0.vdc TBD % VnN=12Vdc,TA=25°C Vo.set =1.vDc TBD % Vo.set=1.vdc TBD Switching Frequency All TBD kHz Frequency Synchronization All Synchronization Frequcncy range 510 720 kH High-Level Input Voltage A 2.0 ow-Levcl Input Voltage All V 4 Input Current, SYNC All SYNc 100 A 「 Minimum Pulse Width, SYNc All 100 Maximum SYNc rise time tsv YNC SH 1 External capacitors may require using the new Tunable Loop feature to ensure that the module is stable as well as getting the best transient response. see the tunable Loop section for details. LINEAGE POWER Advance data sheet 40A Analog Mega DLynx: Non-isolated DC-DC Power Module November 17.2011 4.5-14.4Vdc input; 0.6Vdc to 2Vdc output; 40A output current General Specifications Parameter Device Min Typ M ax Unit Calculated MTBF(lo=0.8lo, max, TA=40 C)Telecordia Issue 2 Method 1 Case 3 TBD Hours Weight TBD g( 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 Intertace (VIN=VIN in to VN. max; open collector or equivalent, Signal referenced to GND) Device is with suffix "4-Positive Logic(See Ordering Information) Logic High(Module ON) Input High Current TBD Input high voltage All TBD VINmar Logic LoW(Module OFF) Input Low Current TBD Input Low Voltage -0.3 二 TBD Device Code with no suffix- Negative Logic(see Ordering Information) On/OFF pin is open collector/drain logic input with external pull-up resistor; signal referenced to GND Logic High(Module OFF nput high current TB BD Input High voltage VIH TBD Logic Low(Module ON) Input low Current All TBD Input Low volt All -0.2 TBD Vdc Turn-On delay and rise times ( VINEV N nom, lo=lo, max, Vo to within +% 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 Tdelay msec 10% of Vo, set) Case 2: Input power is applied for at least one second and then the on/off input is enabled (delay from instant at Tdelay 700 usec which Von/Off is enabled until Vo- 10%of Vo, set Output voltage Rise time( time for Vc to rise fror Trise msec 10%of Vo, set to 90% of Vo, set) Dutput voltage overshoot (TA= 25C VIN= VIN, min to VIN, max, lo=lo, min to lo, max 30%∨o With or without maximum external capacitance shoot(TA= 25C to v V With or without maximum external capacitance Over Temperature Protection All T 145 (See Thermal Considerations section) LINEAGE POWER Advance Data sheet 40A Analog mega lynx: Non-isolated DC-DC Power Module N。 vember17,2011 4.5-14. 4Vdc input; 0.6Vdc to 2Vdc output; 40A output current Feature Specifications(cont Parameter Device Symb Min Typ Max Ur Tracking Accuracy (Power-Up: 2V/ms) VsEQ-Vo 100 00 Ia. min to I Input Undervoltage Lockout Turn-on threshold 2.475 3.025 Vdc Turn-off Threshold 2.25 2.75 Hysteresis 0.25 Vdc PGOOD(Power Good) Signal Interface Open Drain, Vsupply 5VDC Overvoltage threshold for PGOOD ON 108 %Vo. set Overvoltage threshold for PGOOD OFF 105 %∨o.set Undervoltage threshold for PGOOD ON %∨o.set Undervoltage threshold for PGOOD OFF %Ve Pulldown resistance of PGOoD pin 50 LINEAGE POWER Advance data sheet 40A Analog Mega DLynx: Non-isolated DC-DC Power Module November 17.2011 4.5-14.4Vdc input; 0.6Vdc to 2Vdc output; 40A output current Design Considerations Input Filtering The 40A Analog Mega DLynx module should be connected to a low ac-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 TBD minimize input ripple voltage and ensure module stabili To minimize input voltage ripple, ceramic capacitors are recommended at the input of the module. Figure shows the input ripple voltage for various output voltages at 40a of load current with tbd uf or TBD F ceramic capacitors and an input of 12V Figure 2. Output ripple voltage for various output voltages with external tbd ceramic capacitors at the output(40A load). Input voltage is 12 TBD Safety Considerations 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. ie. UL 60950-1 2nd csa c22.2 No Figure 1. Input ripple voltage for various output 60950-107,DNEN60950-1:2006+A11(DE0805 voltages with TBD uF or TBD uF ceramic Teil1+A11)2009-11;EN60950-1:2006+A112009 capacitors at the input(40A load). Input voltage 03 12v Output Filtering For the converter output to be considered meeting the quirements of safety extra-low voltage(SELV), the These modules are designed for low output ripple input must meet SELV requirements. The power voltage and will meet the maximum output ripple module has extra-low voltage(ELv) outputs when all specification with 0. 1 HF ceramic and TBD WF ceramic inputs are ELV capacitors at the output of the module. However additional output filtering may be required by the The input to these units is to be provided with a fast system designer for a number of reasons. First, there acting fuse with a maximum rating of TBD A in the may be a need to further reduce the output ripple and positive input lead noise of the module. Second the dynamic response characteristics may need to be customized to a particular load step change 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. Figure 2 provides output ripple information for different extemal capacitance values at various vo and a full load current of 40A. For stable operation of the module limit the capacitance to less than the maximum output capacitance as specified in the electrical specification table. Optimal performance of the module can be achieved by using the tunable Loopfeature described later in this data sheet LINEAGE POWER Advance data sheet 40A Analog Mega DLynx: Non-isolated DC-DC Power Module November 17 2011 4.5-14.4Vdc input; 0.6Vdc to 2Vdc output; 40A output current Feature Descriptions Caution Do not connect S/g gnd to GND sewhere in the Remote on/off Figure 3. Circuit configuration for programming The 40A Analog Mega DLyif w power modules output voltage using an external resistor. feature an On/Off pin for remote On/Off operation Table 1 Twa On/Off lagic options are available. In the positive Logic On/Off option, (device code suffix 4-see Vo.set(V)Rtrim(KQ2) Ordering Information), the module turns on during a 0.6 logic High on the On/Off pin and turns OFF during a 0.9 40 logic Low. With the Negative Logic On/Off option, (no 1.0 30 device code suffix, see Ordering Information),the 1.2 module turns OFF during logic High and on during 20 logic LoW. The On/Off signal should be always 1.5 13.33 referenced to ground For either On/Off logic option 1.8 10 leaving the on/Off pin disconnected will turn the module on when input voltage is present Remote sense The power module has a remote Sense feature to Monotonic Start-up and shutdown minimize the effects of distribution losses by regulating The module has monotonic start-up and shutdown the voltage at the SENSE pin. The voltage between behavior for any combination of rated input voltage, the SENSE pin and VoUT pin should not exceed 0.5V. output current and operating temperature range Voltage Margining Startup into Pre-biased Output Output voltage margining can be implemented in the The module can start into a prebiased output as long module by connecting a resistor, Rmargin-up, from the as the prebias voltage is 0.5V less than the set output Trim pin to the ground pin for margining-up the output voltage voltage and by connecting a resistor, Rmargin-down, from the Trim pin to output pin for margining-down. Figure Output Voltage Programming 4 shows the circuit configuration for output voltage The output voltage of the module is programmable to margInIng any voltage from 0. 6dc to 2Vdc by connecting a resistor between the Trim and SIG GND pins of the > Marge module Without an external resistor between trim and SIG GND pins, the output of the module will be MODULE 0.6Vdc. To calculate the value of the trim resistor Rtrim for a desired output voltage, should be as per the following equation Tri 12 Rmargin-up Rtrim (Vo-0.6) Rtrim is the external resistor in kQ Vo is the desired output voltage. Table 1 provides IG GND Rtrim values required for some common output Figure 4. Circuit Configuration for margining ●VnN(+) Vo(+) Output Voltage Sequencing VS+ ON/OFF The power module includes a sequencing feature, EZ SEQUENCE that enables users to implement various TRIM LOAD types of output voltage sequencing in their pplications. This is accomplished via an additional sequencing pin. When not using the sequencing feature. leave it unconnected SIG GND The voltage applied to the seQ pin should be scaled down by the same ratio as used to scale the output Itage down to the refe voltage of the mod This is accomplished by an external resistive divider LINEAGE POWER Advance data sheet 40A Analog Mega DLynx: Non-isolated DC-DC Power Module November 17.2011 4.5-14. 4Vdc input; 0.6Vdc to 2Vdc output; 40A output current connected across the sequencing voltage before it is module as shown in Fig. 6, with the converter being fed to the SEQ pin as shown in Fig. 5 synchronized by the rising edge of the external signal The Electrical Specifications table specifies the LYnx Module requirements of the external SYNC signal. If the SYNc in is not used the module should free run at the SEQ default switching frequency. If synchronization is not being used, connect the SYNC pin to GND SEQ MODULE R1=Rtrim SIG GND ●sYNC Figure 5. Circuit showing connection of the ●GND sequencing signal to the SEQ pin When the scaled down sequencing voltage is applied Figure 6. External source connections to to the seQ pin, the output voltage tracks this voltage synchronize switching frequency of the module until the output reaches the set-point voltage. The final value of the sequencing voltage must be set higher than the set-point voltage of the module. The output Dual Layout oltage follows the sequencing voltage on a one-to Identical dimensions and pin layout of Analog and one basis. By connecting multiple modules together Digital Mega DLynx modules permit migration from multiple modules can track their output voltages to the one to the other without needing to change the layout voltage applied on the seQ pin In both cases the trim resistor is connected between To initiate simultaneous shutdown of the modules the trim and signal ground SEQ pin voltage is lowered in a controlled manner. The output voltage of the modules tracks the voltages Power Good below their set-point voltages on a one-to-one basis The module provides a Power Good(PGOOD)signal A valid input voltage must be maintained until the that is implemented with an open-drain output to tracking and output voltages reach ground potential indicate that the output voltage is within the regulation Overcurrent Protection limits of the power module. The PGOOD signal will be To provide protection in a fault (output overload) de-asserted to a low state if any condition such as overtemperature, overcurrent or loss of regulation condition, the unit is equipped with internal occurs that would result in the output voltage going current-limiting circuitry and can endure current limiting +10% outside the setpoint value. The PGood terminal continuously. At the point of current-limit inception, the unit enters hiccup mode. The unit operates normally can be connected through a pullup resistor (suggested value 100kQ2)to a source of 5Vdc or lower. once the output current is brought back into its specified range Overtemperature Protection Tunable Loop To provide protection in a fault condition, the unit is The module has a feature that optimizes transient equipped with a thermal shutdown circuit. The unit will response of the module called Tunable Loop shut down if the overtemperature threshold of TBD C (typ) is exceeded at the thermal reference point External capacitors are usually added to the output of Tref. Once the unit goes into thermal shutdown it will the module for two reasons: to reduce output ripple then wait to cool before attempting to restart and noise and to reduce output voltage deviations from the steady-state value in the presence of dynamic load Input Undervoltage Lockout current changes. Adding external capacitance however affects the voltage control loop of the module typically At input voltages below the input undervoltage lockout causing the loop to slow down with sluggish response limit, the module operation is disabled. The module Larger values of external capacitance could also cause will begin to operate at an input voltage above the the module to become unstable undervoltage lockout turn-on threshold The Tunable Loop allows the user to externally Synchronization adjust the voltage control loop to match the filter The module switching frequency can be synchronized network connected to the output of the module. The to a signal with an external frequency within a Tunable Loop is implemented by connecting a series specified range. Synchronization can be done by using R-C between the VS+ and TRiM pins of the module the external signal applied to the SYNC pin of the as shown in Fig. 7. This R-c allows the user to LINEAGE POWER 8 Advance data sheet 40A Analog Mega DLynx: Non-isolated DC-DC Power Module November 17 2011 4.5-14.4Vdc input; 0.6Vdc to 2Vdc output; 40A output current externally adjust the voltage loop feedback compensation of the module VOUT RTune MODULE CO 士 CT TRIM RTrim SIG GND GND Figure. 7. Circuit diagram showing connection of aTUME and CTUNE to tune the control loop of the R odule Table 2. General recommended values of of rTune and ctune for Vin=12V and various external ceramic capacitor combinations TBD Table 3. Recommended values of rTunE and CTUNE to obtain transient deviation of 2% of Vout for a 20A step load with Vin=12V. TBD LINEAGE POWER Advance data sheet 40A Analog Mega DLynx: Non-isolated DC-DC Power Module November 17.2011 4.5-14. 4Vdc input; 0.6Vdc to 2Vdc output; 40A output current Thermal considerations Power modules operate in a variety of thermal The thermal reference points, Tref used in the environments; however, sufficient cooling should specifications are also shown in Figure 9. For reliable always be provided to help ensure reliable operation operation the temperatures at these points should not exceed 120C. The output power of the module should Considerations include ambient temperature airflow not exceed the rated power of the module (o, set X module power dissipation, and the need for increased lo, max) reliability. a reduction in the operating temperature of the module will result in an increase in reliability the Please refer to the Application Note Thermal thermal data presented here is based on physical Characterization process For open Frame board measurements taken in a wind tunnel. the test set-up Mounted power modules"for a detailed discussion of is shown in Figure 8. The preferred airflow direction thermal aspects including maximum device for the module is in Figure 9 temperatures (1.01 DIR-CTICN Power module 76.2 Figure 9. Preferred airflow direction and location of pot of the module(tref) for measuring 27 airflow and (0.50) ambient temperature fd Figure 8. Thermal Test Setup LINEAGE POWER

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