MAX8753ETI+T Maxim Integrated Products, MAX8753ETI+T Datasheet
MAX8753ETI+T
Specifications of MAX8753ETI+T
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MAX8753ETI+T Summary of contents
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... TQFN ________________________________________________________________ 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-DC Converter with Integrated Charge Pumps o 3 Integrated DC-DC Converters, 1 LDO o 1MHz Current-Mode PWM Boost Regulator Up to +13V Main High-Power Output ...
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TFT LCD DC-DC Converter with Integrated Charge Pumps ABSOLUTE MAXIMUM RATINGS SHDN, LCDON to GND ......................................-0.3V to +6V IN, DLP, OUTL, FBL, FBP, FBN, INTG, FB, REF to GND ............................................-0. PGND to GND .......................................................-0.3V to +0. ...
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ELECTRICAL CHARACTERISTICS (continued) = 3.0V, SHDN = LCDON = IN, V (Circuit of Figure 0°C to +85°C. Typical values are PARAMETER SYMBOL LX Current Limit I Soft-Start Period POSITIVE CHARGE PUMP V Input Supply ...
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... DLP Turn-On Threshold DLP Discharge Switch On-Resistance FAULT PROTECTION Duration to Trigger Fault t FAULT FBL Fault-Trip Level FB, FBP Fault-Trip Level FBN Fault-Trip Level Thermal-Shutdown Threshold Dual-Mode is a trademark of Maxim Integrated Products, Inc. 4 _______________________________________________________________________________________ = V = 10V, PGND = GND, C REF = 0.22µF, C SUPP SUPN CONDITIONS 300mA ...
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ELECTRICAL CHARACTERISTICS = 3.0V, SHDN = LCDON = IN, V (Circuit of Figure -40°C to +85°C. Typical values are at T PARAMETER SYMBOL INPUT SUPPLIES Input Supply Range Input Undervoltage Threshold IN Quiescent Supply Current SUPP Supply ...
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TFT LCD DC-DC Converter with Integrated Charge Pumps ELECTRICAL CHARACTERISTICS (continued) = 3.0V, SHDN = LCDON = IN, V (Circuit of Figure -40°C to +85°C. Typical values are PARAMETER SYMBOL SEQUENCING DLP Turn-On Threshold ...
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Figure 3V 9V MAIN OUTP VOLTAGE vs. OUTP LOAD CURRENT 24.2 24 10V SUPP 24 SUPP 23.9 23 OUTP LOAD CURRENT ...
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TFT LCD DC-DC Converter with Integrated Charge Pumps (Circuit of Figure 3V 9V MAIN OUTP SWITCHING WAVEFORMS 0 0 24V 4µs/div 5V/div 200mV/div CIN OUTP B. V ...
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PIN NAME 1 SUPP Positive Charge-Pump Supply Voltage. Bypass to PGND with a 0.1µF capacitor. 2, 12, 20, N.C. No connection. Not internally connected C2N Negative Terminal of Flying Capacitor C2 4 C2P Positive Terminal of Flying Capacitor ...
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TFT LCD DC-DC Converter with Integrated Charge Pumps V IN 6.8µH +2.6V TO +5. 10µF C INTG 470pF 11 0.1µ MAIN 19 0.1µ LOGIC 26 +2.5V, 300mA LOGIC 24 10µF ...
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Table 2. Component Suppliers SUPPLIER PHONE Fairchild 408-822-2000 Sumida 847-545-6700 Taiyo Yuden 408-573-4150 TDK 847-803-6100 Toshiba 949-455-2000 Detailed Description The MAX8753 quadruple-output DC-DC converter pro- vides the regulated voltages required by active-matrix, TFT LCDs. Figure 1 shows the typical operating ...
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TFT LCD DC-DC Converter with Integrated Charge Pumps REF-OK REF REF C REF 1.1V GND OSC OSC SLOPE COMP MAX8753 Figure 3. Step-Up Regulator Block Diagram slope compensation signal is summed with the current- sense and feedback signals. On the ...
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V SUPP SUPP CLK R ON CONTROL CTRL C1N C1 C1P C2P C2 C2N MAX8753 Figure 4. Positive Charge-Pump Regulator Block Diagram C2. If the voltage across C2 plus a diode drop ( smaller than the first ...
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TFT LCD DC-DC Converter with Integrated Charge Pumps R ON CONTROL OSC CHARGE- PUMP LOGIC MAX8753 Figure 5. Negative Charge-Pump Regulator Block Diagram Linear Regulator The MAX8753 contains a linear regulator that uses an internal pMOS transistor to supply load ...
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LCDON is high. When LCDON is logic- high, the main DC-DC step-up converter powers up with soft-start enabled. Once the main step-up converter reaches regulation, the negative charge pump turns ...
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TFT LCD DC-DC Converter with Integrated Charge Pumps plus the contributions from the positive and negative charge pumps × MAIN EFF ( ) MAIN MAX ( ) NEG where I is the maximum output ...
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The MAX8753’s high switching frequency demands a high-speed rectifier. Schottky diodes are recommend- ed for most applications because of their fast recovery time and low forward voltage. In general Schottky diode complements the internal MOSFET well. Output-Voltage Selection ...
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TFT LCD DC-DC Converter with Integrated Charge Pumps Applications Information Power Dissipation An IC’s maximum power dissipation depends on the thermal resistance from the die to the ambient environ- ment and the ambient temperature. The thermal resis- tance depends on ...
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Minimize the length and maximize the width of the traces between the output capacitors and the load for best transient response. 6) Minimize the size of the LX node while keeping it wide and short. Keep the LX node ...
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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 © 2006 Maxim Integrated Products Boblet ...