MAX1518ETJ+

MAX1518ETJ+ Datasheet

MAX1516/MAX1517/MAX1518

Part	Datasheet
MAX1518ETJ+	MAX1518ETJ+ (pdf)

Related Parts	Information
MAX1517ETJ+	MAX1517ETJ+
MAX1517ETJ+T	MAX1517ETJ+T
MAX1518ETJ+T	MAX1518ETJ+T

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TFT-LCD DC-DC Converters with Operational Amplifiers MAX1516/MAX1517/MAX1518 The MAX1516/MAX1517/MAX1518 include a high-performance step-up regulator, two linear-regulator controllers, and high-current operational amplifiers for active-matrix thin-film transistor TFT liquid-crystal displays LCDs . Also included is a logic-controlled, high-voltage switch with adjustable delay. The step-up DC-DC converter provides the regulated supply voltage for the panel source driver ICs. The converter is a high-frequency 1.2MHz current-mode regulator with an integrated 14V n-channel MOSFET that allows the use of ultra-small inductors and ceramic capacitors. It provides fast transient response to pulsed loads while achieving efficiencies over The gate-on and gate-off linear-regulator controllers provide regulated TFT gate-on and gate-off supplies using external charge pumps attached to the switching node. The MAX1518 includes five high-performance operational amplifiers, the MAX1517 includes three, and the MAX1516 includes one operational amplifier. These amplifiers are designed to drive the LCD backplane VCOM and/or the gamma-correction divider string. The devices feature high output current ±150mA , fast slew rate 13V/µs , wide bandwidth 12MHz , and rail-to-rail inputs and outputs. The MAX1516/MAX1517/MAX1518 are available in 32pin thin QFN packages with a maximum thickness of 0.8mm for ultra-thin LCD panels. Notebook Computer Displays LCD Monitor Panels Automotive Displays Ordering Information PART MAX1516ETJ MAX1517ETJ MAX1518ETJ TEMP RANGE -40°C to +100°C -40°C to +100°C -40°C to +100°C PIN-PACKAGE 32 Thin QFN 5mm x 5mm 32 Thin QFN 5mm x 5mm 32 Thin QFN 5mm x 5mm 2.6V to 5.5V Input Supply Range 1.2MHz Current-Mode Step-Up Regulator Fast Transient Response to Pulsed Load High-Accuracy Output Voltage Built-In 14V, 2.4A, N-Channel MOSFET High Efficiency 90% Linear-Regulator Controllers for VGON and VGOFF High-Performance Operational Amplifiers ±150mA Output Short-Circuit Current 13V/µs Slew Rate 12MHz, -3dB Bandwidth Rail-to-Rail Inputs/Outputs Logic-Controlled, High-Voltage Switch with Adjustable Delay Timer-Delay Fault Latch for All Regulator Outputs Thermal-Overload Protection 0.6mA Quiescent Current Minimal Operating Circuit VIN LX STEP-UP CONTROLLER COMP PGND AGND MAX1518 GATE-ON CONTROLLER DRVP FBP SWITCH CONTROL SUP NEG1 OUT1 OP1 POS1 NEG2 GATE-OFF CONTROLLER DEL CTL DRVN FBN REF NEG4 OUT2 OP2 POS2 OUT4 POS4 NEG5 OUT3 OP3 POS3 OUT5 OP5 BGND POS5 VMAIN VCP VGON VCN VGOFF Pin Configurations appear at end of data sheet. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at MAX1516/MAX1517/MAX1518 TFT-LCD DC-DC Converters with Operational Amplifiers ABSOLUTE MAXIMUM RATINGS IN, CTL to AGND to +6V COMP, FB, FBP, FBN, DEL, REF to AGND ....-0.3V to VIN + 0.3V PGND, BGND to AGND LX to PGND to +14V SUP to AGND to +14V DRVP, SRC to +30V POS_, NEG_, OUT_ to AGND ...................-0.3V to VSUP + 0.3V POS1 to NEG1, POS2 to NEG2, POS3 to NEG3, POS4 to NEG4, POS5 to NEG5 ...............................-6V to +6V DRVN to AGND ................................... VIN - 30V to VIN + 0.3V COM, DRN to AGND ................................-0.3V to VSRC + 0.3V DRN to +30V OUT_ Maximum Continuous Output Current....................±75mA LX Switch Maximum Continuous RMS Output Current .........1.6A Continuous Power Dissipation TA = +70°C 32-Pin Thin QFN derate 21.2mW/°C above +70°C ..1702mW Operating Temperature Range .........................-40°C to +100°C Junction Temperature Storage Temperature Range .............................-65°C to +150°C Lead Temperature soldering, 10s .................................+300°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS VIN = 3V, VSUP = 8V, PGND = AGND = BGND = 0, IREF = 25µA, TA = 0°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted. PARAMETER IN Supply Range IN Undervoltage-Lockout Threshold SYMBOL VIN CONDITIONS VUVLO VIN rising, typical hysteresis = 150mV MIN TYP MAX UNITS IN Quiescent Current VFB = VFBP = 1.4V, VFBN = 0, LX not switching IIN VFB = 1.1V, VFBP = 1.4V, VFBN = 0, LX switching Duration to Trigger Fault Condition REF Output Voltage Thermal Shutdown MAIN STEP-UP REGULATOR Output Voltage Range Operating Frequency Oscillator Maximum Duty Cycle FB Regulation Voltage FB Fault Trip Level FB Load Regulation FB Line Regulation FB Input Bias Current FB Transconductance FB Voltage Gain -2µA < IREF < 50µA, VIN = 2.6V to 5.5V Temperature rising Hysteresis +160 °C VMAIN fOSC 1020 1200 1380 kHz No load TA = +25°C to +85°C TA = 0°C to +85°C VFB falling 0 < IMAIN < full load, transient only VIN = 2.6V to 5.5V VFB = 1.4V = 5µA 150 280 FB to COMP

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TFT-LCD DC-DC Converters with Operational Amplifiers

MAX1516/MAX1517/MAX1518

The MAX1516/MAX1517/MAX1518 include a high-performance step-up regulator, two linear-regulator controllers, and high-current operational amplifiers for active-matrix thin-film transistor TFT liquid-crystal displays LCDs . Also included is a logic-controlled, high-voltage switch with adjustable delay.

The step-up DC-DC converter provides the regulated supply voltage for the panel source driver ICs. The converter is a high-frequency 1.2MHz current-mode regulator with an integrated 14V n-channel MOSFET that allows the use of ultra-small inductors and ceramic capacitors. It provides fast transient response to pulsed loads while achieving efficiencies over

The gate-on and gate-off linear-regulator controllers provide regulated TFT gate-on and gate-off supplies using external charge pumps attached to the switching node. The MAX1518 includes five high-performance operational amplifiers, the MAX1517 includes three, and the MAX1516 includes one operational amplifier. These amplifiers are designed to drive the LCD backplane VCOM and/or the gamma-correction divider string. The devices feature high output current ±150mA , fast slew rate 13V/µs , wide bandwidth 12MHz , and rail-to-rail inputs and outputs.

The MAX1516/MAX1517/MAX1518 are available in 32pin thin QFN packages with a maximum thickness of 0.8mm for ultra-thin LCD panels.

Notebook Computer Displays

LCD Monitor Panels

Automotive Displays
Ordering Information

PART MAX1516ETJ MAX1517ETJ MAX1518ETJ

TEMP RANGE -40°C to +100°C -40°C to +100°C -40°C to +100°C

PIN-PACKAGE 32 Thin QFN 5mm x 5mm 32 Thin QFN 5mm x 5mm 32 Thin QFN 5mm x 5mm
2.6V to 5.5V Input Supply Range
1.2MHz Current-Mode Step-Up Regulator Fast Transient Response to Pulsed Load High-Accuracy Output Voltage Built-In 14V, 2.4A, N-Channel MOSFET High Efficiency 90%

Linear-Regulator Controllers for VGON and VGOFF High-Performance Operational Amplifiers
±150mA Output Short-Circuit Current 13V/µs Slew Rate 12MHz, -3dB Bandwidth Rail-to-Rail Inputs/Outputs

Logic-Controlled, High-Voltage Switch with Adjustable Delay

Timer-Delay Fault Latch for All Regulator Outputs

Thermal-Overload Protection
0.6mA Quiescent Current

Minimal Operating Circuit

VIN LX

STEP-UP CONTROLLER

COMP

PGND AGND

MAX1518

GATE-ON CONTROLLER

DRVP FBP

SWITCH

CONTROL

SUP NEG1

OUT1 OP1 POS1 NEG2

GATE-OFF CONTROLLER

DEL CTL DRVN

FBN REF NEG4

OUT2 OP2 POS2

OUT4

POS4 NEG5

OUT3 OP3

POS3

OUT5 OP5

BGND

POS5

VMAIN

VCP VGON

VCN VGOFF

Pin Configurations appear at end of data sheet.

Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at

MAX1516/MAX1517/MAX1518

TFT-LCD DC-DC Converters with Operational Amplifiers

ABSOLUTE MAXIMUM RATINGS

IN, CTL to AGND to +6V COMP, FB, FBP, FBN, DEL, REF to AGND ....-0.3V to VIN + 0.3V PGND, BGND to AGND LX to PGND to +14V SUP to AGND to +14V DRVP, SRC to +30V POS_, NEG_, OUT_ to AGND ...................-0.3V to VSUP + 0.3V POS1 to NEG1, POS2 to NEG2, POS3 to NEG3,

POS4 to NEG4, POS5 to NEG5 ...............................-6V to +6V DRVN to AGND ................................... VIN - 30V to VIN + 0.3V

COM, DRN to AGND ................................-0.3V to VSRC + 0.3V DRN to +30V OUT_ Maximum Continuous Output Current....................±75mA LX Switch Maximum Continuous RMS Output Current .........1.6A Continuous Power Dissipation TA = +70°C
32-Pin Thin QFN derate 21.2mW/°C above +70°C ..1702mW Operating Temperature Range .........................-40°C to +100°C Junction Temperature Storage Temperature Range .............................-65°C to +150°C Lead Temperature soldering, 10s .................................+300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

VIN = 3V, VSUP = 8V, PGND = AGND = BGND = 0, IREF = 25µA, TA = 0°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.

PARAMETER IN Supply Range

IN Undervoltage-Lockout Threshold

SYMBOL VIN

CONDITIONS

VUVLO VIN rising, typical hysteresis = 150mV

MIN TYP MAX UNITS

IN Quiescent Current

VFB = VFBP = 1.4V, VFBN = 0,

LX not switching IIN

VFB = 1.1V, VFBP = 1.4V, VFBN = 0,

LX switching

Duration to Trigger Fault Condition REF Output Voltage

Thermal Shutdown

MAIN STEP-UP REGULATOR Output Voltage Range Operating Frequency Oscillator Maximum Duty Cycle

FB Regulation Voltage

FB Fault Trip Level FB Load Regulation FB Line Regulation FB Input Bias Current FB Transconductance FB Voltage Gain
-2µA < IREF < 50µA, VIN = 2.6V to 5.5V Temperature rising Hysteresis
+160 °C

VMAIN
fOSC
1020 1200 1380 kHz

No load

TA = +25°C to +85°C

TA = 0°C to +85°C

VFB falling
0 < IMAIN < full load, transient only VIN = 2.6V to 5.5V

VFB = 1.4V
= 5µA
150 280

FB to COMP

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Datasheet ID: MAX1518ETJ+ 647239