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MAX17103 Dataheets PDF



Part Number MAX17103
Manufacturers Maxim Integrated
Logo Maxim Integrated
Description DC-DC Converter
Datasheet MAX17103 DatasheetMAX17103 Datasheet (PDF)

19-4445; Rev 0; 2/09 EVAALVUAAILTAIOBNLEKIT DC-DC Converter with Integrated Scan Driver, VGL Controller, Op Amp, and LDO for TFT LCD MAX17103/AUO-P1721.14 General Description The MAX17103 includes a high-performance step-up regulator, a 350mA low-dropout linear regulator, a highspeed operational amplifier, a negative linear regulator controller, and a high-voltage, level-shifting scan driver. The device is optimized for thin-film transistor (TFT) liquid-crystal display (LCD) applications. The .

  MAX17103   MAX17103


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19-4445; Rev 0; 2/09 EVAALVUAAILTAIOBNLEKIT DC-DC Converter with Integrated Scan Driver, VGL Controller, Op Amp, and LDO for TFT LCD MAX17103/AUO-P1721.14 General Description The MAX17103 includes a high-performance step-up regulator, a 350mA low-dropout linear regulator, a highspeed operational amplifier, a negative linear regulator controller, and a high-voltage, level-shifting scan driver. The device is optimized for thin-film transistor (TFT) liquid-crystal display (LCD) applications. The step-up DC-DC converter provides the regulated supply voltage for panel source driver ICs. The high 1.2MHz switching frequency allows the use of ultrasmall inductors and ceramic capacitors. The currentmode control architecture provides fast-transient response to pulsed loads typical of source driver loads. The step-up regulator features an adjustable soft-start and an adjustable cycle-by-cycle current limit. The high-current operational amplifier is designed to drive the LCD backplane (VCOM). The amplifier features high output current (±200mA), fast slew rate (50V/µs), wide bandwidth (12MHz), and rail-to-rail inputs and outputs. The low-voltage LDO linear regulator has an integrated 0.8Ω pass element and can provide at least 350mA. The output voltage is accurate within ±1%. The high-voltage, level-shifting scan driver is designed to drive the TFT panel gate drivers. Its three outputs can swing up to 40V (max) to swiftly drive capacitive loads. To save power, the two complementary outputs are designed to allow charge sharing during state changes. The MAX17103 is available in a 32-pin, 5mm x 5mm, thin QFN package with a maximum thickness of 0.8mm for thin LCD panels. Applications Notebook Computer Displays Ordering Information PART TEMP RANGE PIN-PACKAGE MAX17103ETJ+ -40°C to +85°C 32 Thin QFN-EP* AUO-P1721.14 -40°C to +85°C 32 Thin QFN-EP* +Denotes lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. Features o 2.3V to 5.5V IN Supply Voltage Range o 1.2MHz Current-Mode Step-Up Regulator Fast-Transient Response High-Accuracy Reference (1%) Integrated 16V, 2A, 200mΩ MOSFET High Efficiency (> 85%) Adjustable Cycle-by-Cycle Current Limit o High-Performance Operational Amplifier 200mA Output Short-Circuit Current 50V/µs Slew Rate 12MHz, -3dB Bandwidth o Low-Dropout Linear Regulator High-Accuracy Output Voltage (1.0%) o High-Voltage Drivers with Scan Logic +35V to -15V Outputs 40V (Max) Swing o Linear Regulator Controller for Gate-Off Supply o Thermal-Overload Protection o 32-Pin, 5mm x 5mm, Thin QFN Package Simplified Operating Circuit VVGL VIN VGHON VMAIN VLOGIC VGHON SYSTEM VVGL DRVN IN FBN VGL REF CONTROLLER ENA LDOADJ STEP-UP CONTROLLER LDOO LINEAR REGULATOR VDET CD MAX17103 AUO-P1721.14 LX PGND FB COMP SS AGND OPAS VOLTAGE DETECTOR RST OP OUT GHON CK CS XCK ST SCAN DRIVER LOGIC POS CKH QS XCKH STH To VCOM BACKPLANE PANEL VGLC VGHON GD VGL Pin Configuration appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products 1 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. DC-DC Converter with Integrated Scan Driver, VGL Controller, Op Amp, and LDO for TFT LCD MAX17103/AUO-P1721.14 ABSOLUTE MAXIMUM RATINGS IN, RST to AGND ...................................................-0.3V to +7.5V FB, FBN, CD, ENA, VDET, SS, CS, ST, CK, XCK to AGND...................................-0.3V to (VIN + 0.3V) LDOADJ, LDOO, COMP, REF to AGND ......-0.3V to (VIN + 0.3V) PGND to AGND .....................................................-0.3V to +0.3V LX, OPAS to PGND.................................................-0.3V to +18V DRVN to AGND.............................................-20V to (VIN + 0.3V) GHON to PGND......................................................-0.3V to +40V VGL to PGND ........................................................ -20V to +0.3V GHON to VGL…………………………………………-0.3V to +45V GD to PGND ..........................................-0.3V to (VGHON + 0.3V) GD to VGHON ........................................................-15V to +0.3V VGLC, STH, CKH, XCKH ........(-0.3V + VVGL) to (VGHON + 0.3V) OUT, POS to PGND ................................-0.3V to (VOPAS + 0.3V) POS to OUT ...........................................................-7.5V to +7.5V OUT Maximum Continuous Output Current......................±75mA GHON, STH, VGL, CKH, and XCKH RMS Current Rating 120mA LX, PGND RMS Current Rating.............................................1.6A Continuous Power Dissipation (TA = +70°C) 32-Pin TQFN (derate 24.9mW/°C above +70°C).......1990mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (s.


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