MAX1542ETP+ Maxim Integrated Products, MAX1542ETP+ Datasheet
MAX1542ETP+
Specifications of MAX1542ETP+
Related parts for MAX1542ETP+
MAX1542ETP+ Summary of contents
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... AGND 5 THIN QFN (5mm x 5mm) Pin Configurations continued at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. TFT LCD DC-to-DC Converter with Operational Amplifiers o Ultra-High-Performance Step-Up Regulator ...
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TFT LCD DC-to-DC Converter with Operational Amplifiers ABSOLUTE MAXIMUM RATINGS IN, CTL, COMP, FB, DEL, FREQ (MAX1543) to AGND ...............................................................-0.3V to +6V COMP, FB, DEL to AGND .............................-0.3V to (IN + 0.3V) PGND to AGND ..................................................................±0. PGND ............................................................-0.3V ...
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ELECTRICAL CHARACTERISTICS (continued 3V 8V 28V, FREQ = IN (MAX1543), PGND = AGND = SUP SRC unless otherwise noted.) PARAMETER SYMBOL FB Input Bias Current FB Transconductance FB Voltage Gain LX ...
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TFT LCD DC-to-DC Converter with Operational Amplifiers ELECTRICAL CHARACTERISTICS (continued 3V 8V 28V, FREQ = IN (MAX1543), PGND = AGND = SUP SRC unless otherwise noted.) PARAMETER SYMBOL DEL Turn-On Threshold ...
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ELECTRICAL CHARACTERISTICS (continued 3V 8V 28V, FREQ = IN (MAX1543), PGND = AGND = SUP SRC PARAMETER SYMBOL LX Current Limit Current-Sense Transresistance OPERATIONAL AMPLIFIERS SUP Supply Range SUP Supply Current ...
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TFT LCD DC-to-DC Converter with Operational Amplifiers (V = 3.3V 8V 1.2MHz MAIN OSC STEP-UP REGULATOR EFFICIENCY vs. LOAD CURRENT (V = 8V) MAIN 95 MAX1543 1.2MHz OSC L = 4.7µH ...
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1.2MHz MAIN OSC OPERATIONAL AMPLIFIER FREQUENCY RESPONSE FOR VARIOUS 1000pF 0 -10 - SUP 10kΩ L -30 100 ...
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TFT LCD DC-to-DC Converter with Operational Amplifiers (V = 3.3V 8V 1.2MHz MAIN OSC STEP-UP REGULATOR PULSED LOAD-TRANSIENT RESPONSE I MAIN 1A/div I L 500mA/div V MAIN 100mV/div AC-COUPLED 10µs/div HEAVY-LOAD SOFT-START WAVEFORMS MAX1542 ...
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1.2MHz MAIN OSC OPERATIONAL AMPLIFIER LARGE-SIGNAL STEP RESPONSE V OUT_ 1V/div 1µs/div PIN NAME MAX1542 MAX1543 1 1 COM 2 2 SRC 3, 15, 20 — ...
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TFT LCD DC-to-DC Converter with Operational Amplifiers PIN NAME MAX1542 MAX1543 — 15 FREQ COMP 18 18 DEL 19 19 CTL — 20 DRN Typical Application Circuits The MAX1542 typical application circuit ...
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Table 1. Component List DESIGNATION C1 C8 D2, D3 Table 2. Component Suppliers SUPPLIER Inductors Sumida USA Capacitors TDK Diodes Fairchild Toshiba The regulator controls the output voltage and the power delivered to the outputs by ...
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TFT LCD DC-to-DC Converter with Operational Amplifiers G_OFF -7V AT 20mA 0.1µ 2.6V TO 5.5V C1 10µF R8 100kΩ C11 220pF C10 33nF Figure 1. MAX1542 Typical Application Circuit Delay Control Circuit A capacitor from DEL to AGND ...
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G_OFF -7V AT 20mA V IN 2.6V TO 5.5V C1 10µF R8 100kΩ C11 220pF C10 33nF Figure 2. MAX1543 Typical Application Circuit (2.5V rising, 2.35V falling, typ) to ensure that the input voltage is high enough for reliable operation. ...
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TFT LCD DC-to-DC Converter with Operational Amplifiers COMP FB 1.24V OSCILLATOR FREQ* 5µA NEG1 OUT1 POS1 *MAX1543 ONLY. Figure 3. Functional Diagram Thermal-Overload Protection Thermal-overload protection prevents excessive power dissipation from overheating the MAX1542/MAX1543. When the junction temperature exceeds T ...
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DEL REF CTL Figure 4. Switch Control values also require more energy storage and more turns of wire, which increase physical size and can 2 increase I R losses in the inductor. Low inductance val- ues decrease the physical size ...
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TFT LCD DC-to-DC Converter with Operational Amplifiers operating point (η ) taken from an appropriate curve MIN in the Typical Operating Characteristics ✕ V IN(DC,MAX) MAIN(MAX) MAIN Calculate the ripple current at that operating point and the ...
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POSITIVE CHARGE-PUMP OUTPUT VOLTAGE vs 3-STAGE CHARGE-PUMP 2-STAGE CHARGE-PUMP 1-STAGE CHARGE-PUMP (V) MAIN Figure 5. Positive Charge-Pump Output Voltage vs. ...
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TFT LCD DC-to-DC Converter with Operational Amplifiers Power Dissipation The MAX1542/MAX1543s’ maximum power dissipation depends on the thermal resistance from the IC die to the ambient environment and the ambient temperature. The thermal resistance depends on the IC package, PC ...
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TFT LCD DC-to-DC Converter with Pin Configurations (continued) TOP VIEW COM 1 SRC 2 N.C. 3 MAX1542 PGND 4 AGND 5 THIN QFN ______________________________________________________________________________________ Operational Amplifiers TRANSISTOR COUNT: 2508 PROCESS: BiCMOS 15 N. SUP 11 ...
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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. 20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2003 Maxim Integrated Products ...