MAX15005AAUE+T Maxim Integrated Products, MAX15005AAUE+T Datasheet
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MAX15005AAUE+T
Specifications of MAX15005AAUE+T
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MAX15005AAUE+T Summary of contents
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... Supply Isolated Flyback, Forward, Nonisolated SEPIC, Boost Converters Pin Configurations appear at end of data sheet. ________________________________________________________________ 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. 4.5V to 40V Input Automotive ♦ Wide 4.5V to 40V Operating Input Voltage Range ♦ ...
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Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers ABSOLUTE MAXIMUM RATINGS IN to SGND.............................................................-0.3V to +45V IN to PGND.............................................................-0.3V to +45V ON/OFF to SGND ........................................-0. OVI, SLOPE, RTCT, SYNC, SS, FB, COMP SGND .........................................-0. ...
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Flyback/Boost/SEPIC Power-Supply Controllers ELECTRICAL CHARACTERISTICS (continued 14V 0.1μ 0.1μF // 1μ VCC 560pF 0V, COMP = unconnected, OUT = unconnected. T SYNC OVI ...
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Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers ELECTRICAL CHARACTERISTICS (continued 14V 0.1μ 0.1μF // 1μ VCC 560pF 0V, COMP = unconnected, OUT ...
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Flyback/Boost/SEPIC Power-Supply Controllers ELECTRICAL CHARACTERISTICS (continued 14V 0.1μ 0.1μF // 1μ VCC 560pF 0V, COMP = unconnected, OUT = unconnected. T SYNC OVI ...
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Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers ( 14V 0.1μF, C VCC = 0.1μF // 1μF, C REG5 = 1μF, V ON/OFF = 5V 0.01μF, C SLOPE = 100pF ...
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Flyback/Boost/SEPIC Power-Supply Controllers ( 14V 0.1μF, C VCC = 0.1μF // 1μF, C REG5 = 1μF, V ON/OFF = 5V 0.01μF, C SLOPE = 100pF 13.7kΩ 560pF. T ...
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Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers ( 14V 0.1μF, C VCC = 0.1μF // 1μF, C REG5 = 1μF, V ON/OFF = 5V 0.01μF, C SLOPE = 100pF ...
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Flyback/Boost/SEPIC Power-Supply Controllers PIN NAME 1 IN Input Power Supply. Bypass IN with a minimum 0.1μF ceramic capacitor to PGND. ON/OFF Input. Connect ON/OFF to IN for always-on operation. To externally program the UVLO threshold of the IN supply, connect ...
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Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers IN 1 1.228V OFF ON/OFF 2 ON/OFF COMP THERMAL SHUTDOWN OV-COMP OVI 3 1.228V SLOPE 4 COMPENSATION RTCT 6 OSCILLATOR CLK SGND 7 SYNC 8 10 ______________________________________________________________________________________ OFF 7.4V LDO PREREGULATOR REG ...
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Flyback/Boost/SEPIC Power-Supply Controllers Detailed Description The MAX15004A/B/MAX15005A/B are high-perfor- mance, current-mode PWM controllers for wide input- voltage range isolated/nonisolated power supplies. These controllers are for use as general-purpose boost, flyback, and SEPIC controllers. The input voltage range of 4.5V to ...
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Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers operation of the power supply; however, to reduce the power dissipation of the internal LDO, it can be dis- abled by applying an external voltage higher than 7. (LDO output). ...
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Flyback/Boost/SEPIC Power-Supply Controllers (t ). See Figures 3a and 3b for a coarse selec- DISCHARGE tion of capacitor values for a given switching frequency and maximum duty cycle and then use the following equations to calculate the resistor value to ...
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Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers MAX15005 MAXIMUM DUTY CYCLE vs. OUTPUT FREQUENCY (f 100 3300pF 2200pF 1500pF 560pF CT = 1000pF ...
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Flyback/Boost/SEPIC Power-Supply Controllers When the voltage produced by this current (through the current-sense resistor) exceeds the current-limit com- parator threshold, the MOSFET driver (OUT) quickly ter- minates the on-cycle. In most cases, a short-time constant RC filter is required to ...
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Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers REG5 0.1μ Figure 5. Application Schematic Input Capacitor Selection in Boost Configuration The input current for the boost ...
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Flyback/Boost/SEPIC Power-Supply Controllers Δ V ESR = ESR I O × MAX = C OUT Δ × OUT is the load current, Δ the portion of the ripple due ...
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Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers Selecting V The V external supply series resistor should be sized CC to provide enough average current from V the external MOSFET (I ) and I DRIVE clamped internally to 10.4V and ...
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Flyback/Boost/SEPIC Power-Supply Controllers Step 3) Calculate the secondary to primary turns ratio (N ) and the bias winding to primary turns ratio (N SP using the following equations and N ...
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Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers An additional small LC filter may be necessary to sup- press the remaining low-energy high-frequency spikes. The LC filter also helps attenuate the switching frequen- cy ripple. Care must be taken to ...
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Flyback/Boost/SEPIC Power-Supply Controllers MOSFET, Diode, and Series Capacitor Selection in a SEPIC Converter For the SEPIC configuration, choose an n-channel MOSFET with a V rating at least 20% higher than the DS sum of the output and input voltages. When ...
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Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers V IN 2.5V TO 16V C7 6.8μF D1 LL4148 100nF MAX15005A OFF ON/OFF 3 OVI 4 SLOPE C SLOPE 47pF 5 REG5 N.C. RT 15kΩ 6 RTCT ...
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Flyback/Boost/SEPIC Power-Supply Controllers Layout Recommendations Typically, there are two sources of noise emission in a switching power supply: high di/dt loops and high dv/dt surfaces. For example, traces that carry the drain cur- rent often form high di/dt loops. Similarly, ...
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Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers V IN (5.5V TO 16V) C1 330μF 50V 0.1μF 50V MAX15005A/B R17 100kΩ ON/OFF V R18 IN 47.5kΩ 1% R11 182kΩ OVI R12 12.1kΩ 1% ...
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Flyback/Boost/SEPIC Power-Supply Controllers V IN (4.5V TO 16V) C1 10μF 25V 1 IN C11 0.1μF R11 301kΩ 2 ON/OFF V OUT R10 100kΩ R8 153kΩ 3 OVI R9 10kΩ 4 SLOPE C2 100pF 5 N.C. R2 REG5 13kΩ 6 RTCT ...
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Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers TOP VIEW + IN 1 ON/OFF 2 OVI 3 MAX15004A SLOPE 4 MAX15005A N.C. 5 RTCT 6 SGND 7 SYNC 8 EP TSSOP-EP Chip Information PROCESS: BiCMOS 26 ______________________________________________________________________________________ ...
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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 ____________________ 27 © 2011 Maxim Integrated Products 4 ...