MAX15034BEVKIT+ Maxim Integrated Products, MAX15034BEVKIT+ Datasheet
MAX15034BEVKIT+
Specifications of MAX15034BEVKIT+
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MAX15034BEVKIT+ Summary of contents
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... Graphics Cards Networking Systems Point-of-Load High-Current/High-Density Telecom DC-DC Regulators RAID Systems ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. o 4.75V to 5. 28V Input o Dual-Output Synchronous Buck Controller o Configurable for Two Separate Outputs (25A) or ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications ABSOLUTE MAXIMUM RATINGS IN, LX_ to AGND.....................................................-0.3V to +30V BST_ to AGND........................................................-0.3V to +35V DH_ to LX_ ....................................-0. DL_ to PGND ..............................................-0. BST_ to LX_ ..............................................................-0.3V to +6V ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications ELECTRICAL CHARACTERISTICS (continued +5V REG DD EN_ A (Note 2) PARAMETER SYMBOL Nonoverlap Time (Dead Time) RT/CLKIN Output Voltage V ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications ELECTRICAL CHARACTERISTICS (continued +5V REG DD EN_ A (Note 2) PARAMETER SYMBOL -3dB Bandwidth CSP_ Input Bias Current CURRENT-ERROR AMPLIFIER ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications (Circuit of Figure +25°C, unless otherwise noted OSCILLATOR FREQUENCY vs 10,000 DH_ DL_ 1000 100 10 0 100 200 300 ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications (Circuit of Figure +25°C, unless otherwise noted DRIVER RISE TIME vs. LOAD CAPACITANCE 100 90 80 DH_ ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications (Circuit of Figure +25°C, unless otherwise noted OUT1/OUT2 OUT-OF-PHASE WAVEFORMS (V = 0.8V 1.3V) OUT1 OUT2 MAX15034 toc14 10μs/div SHORT-CIRCUIT CURRENT WAVEFORMS (V = 5V) ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications (Circuit of Figure +25°C, unless otherwise noted INTERNAL AVERAGE CURRENT LIMIT vs. TEMPERATURE -40 -25 - ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications PIN NAME Current-Sense Differential Amplifier Negative Input for Output 2. Connect CSN2 to the negative terminal of 1 CSN2 the sense resistor. The differential voltage between CSP2 and CSN2 is internally amplified ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications PIN NAME Output 1 Enable. A logic-low shuts down channel 1’s MOSFET drivers. EN1 can be used for output 15 EN1 sequencing. Boost Flying-Capacitor Connection. Reservoir capacitor connection for the high-side MOSFET ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications CLP1 10 EAOUT1 12 EAN1 11 UVLO REG FOR INTERNAL 21 REG BIASING EN1 15 AVGLIMIT 0.61V INTREF EN2 28 8 AGND VEA2 4 ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications Dual-Output/Dual-Phase Select (MODE) The MAX15034 can operate as a dual-output, indepen- dently regulated buck converter dual-phase, single-output buck converter. The MODE input selects between the two operating modes. When ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications Hiccup Fault Protection The MAX15034 includes overload fault protection circuitry that prevents damage to the power MOSFETs. The fault protection consists of two digital fault integration blocks that enable hiccuping under overcurrent ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications The outer voltage control loop consists of the voltage- error amplifier (VEA1). The noninverting input (EAN1) is externally connected to the midpoint of a resistive volt- age-divider from OUT1 to EAN1 to ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications CLP_ A = 36V/V V CSP_ g CSN_ GM IN RAMP (V/S) SW CLK 1.225V EN_ Figure 3. Current Comparator and MOSFET Driver Logic V OUT R 1 EAN_ ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications D1 (100mA, 30V) C2 1μF C8 0.1μ 0.5μH 2mΩ 0.8V/10A C6 680μF R4 1.74kΩ R5 4.64kΩ V R16 REG 100kΩ R17 100kΩ EXTERNAL FREQUENCY SYNC Figure 6. Dual-Output Buck Regulator ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications D1 (100mA, 30V) C2 1μF C8 0.1μ 0.8μH 2mΩ 1.3V/20A C6 680μF R4 5.11kΩ R5 4.75kΩ V R16 REG 100kΩ R17 100kΩ EXTERNAL FREQUENCY SYNC Figure 7. Dual-Phase, Single-Output Buck ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications Design Procedures Inductor Selection The switching frequency per phase, peak-to-peak ripple current in each phase, and allowable voltage ripple at the output, determine the inductance value. Selecting higher switching frequencies reduces the ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications Table 1. High-Side MOSFET Losses LOSS DESCRIPTION Losses associated with MOSFET on-time and Conduction Loss on-resistance. I RMS and duty cycle. Losses associated with charging and discharging the gate capacitance of the ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications Table 2. Low-Side MOSFET Losses LOSS DESCRIPTION Losses associated with MOSFET on-time, I Conduction Loss is a function of load current and duty cycle. Losses associated with charging and discharging the gate ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications LX_ MAX15034 CSP_ CSN_ Figure 8. Noninductive Resistive Sense LX_ MAX15034 CSP_ CSN_ Figure 9. Lossless Inductor Sense Set the RC time constant to be 1.1 to 1.2 times the inductor time ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications LX_ MAX15034 CSP_ CSN_ Figure 10. Inductive Sense Resistor The MAX15034 provides precision average current-limit programmability while using standard sense resistors or shunts. Use the equation below to determine the appropriate V ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications Reverse Current Limit The MAX15034 limits the reverse current when the out- put capacitor voltage is higher than the preset output voltage. Calculate the maximum reverse current limit based on V and ...
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Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications In practical applications, pick the crossover frequency ( the range of < < First calculate R in equation 2 above. Calculate ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 25 © 2008 Maxim Integrated Products ...