MAX17010ETL+T Maxim Integrated Products, MAX17010ETL+T Datasheet

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MAX17010ETL+T

Manufacturer Part Number
MAX17010ETL+T
Description
IC LCD DISPLAY BIAS 40-TQFN
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX17010ETL.pdf (17 pages)

Specifications of MAX17010ETL+T

Applications
LCD Monitor, Notebook Display
Current - Supply
50µA
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
40-TQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX17010 contains a high-performance step-up
switching regulator, a high-speed operational amplifier
(op amp), 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 the panel-source driver ICs. The con-
verter is a 1.2MHz current-mode regulator with an inte-
grated 20V n-channel power MOSFET. The high
switching frequency allows the use of ultra-small induc-
tors and ceramic capacitors. The current-mode control
architecture provides fast transient response to pulsed
loads. The step-up regulator features undervoltage
lockout (UVLO), soft-start, and internal current limit. The
high-current op amp is designed to drive the LCD
backplane (VCOM). The amplifier features high output
current (±150mA), fast slew rate (45V/µs), wide band-
width (20MHz), and rail-to-rail inputs and outputs.
The high-voltage, level-shifting scan driver is designed
to work with panels that incorporate row drivers on the
panel glass. Its eight outputs swing from +30V (max) to
-10V and can swiftly drive capacitive loads.
The MAX17010 is available in a 40-pin thin QFN pack-
age with a maximum thickness of 0.8mm for ultra-thin
LCD panels. The device operates over the -40°C to
+85°C temperature range.
.
19-0709; Rev 0; 3/07
Internal-Switch Boost Regulator with Integrated
+ Denotes a lead-free package.
* EP = Exposed paddle.
Pin Configuration appears at end of data sheet.
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.
MAX17010ETL+
PART
Notebook Computer Displays
LCD Monitor Panels
________________________________________________________________ Maxim Integrated Products
-40°C to +85°C
TEMP RANGE
Ordering Information
High-Voltage Level Shifter and Op Amp
General Description
Applications
PIN-PACKAGE
40 Thin QFN-EP*
(5mm x 5mm)
o 1.8 V to 5.5V IN Supply Voltage Range
o 3mA SUP Quiescent Current (Switching)
o 1.2MHz Current-Mode Step-Up Regulator
o High-Speed Op Amp
o High-Voltage Level-Shifting Scan Drivers
o Thermal-Overload Protection
o 40-Pin, 5mm x 5mm, Thin QFN Package
V
Fast Transient Response
High-Accuracy Output Voltage (1.0%)
Built-In 20V, 1.9A, 200mΩ MOSFET
High Efficiency (> 85%)
Digital Soft-Start
150mA Output Current
45V/µs Slew Rate
20MHz, -3dB Bandwidth
Logic-Level Inputs
+30V to -10V Output Rails
IN
Minimal Operating Circuit
SHDN
IN
COMP
AGND
VL
GON1
GON2
A1
A2
A3
A4
A5
A6
A7
A8
MAX17010
EP
LX
VCOM
PGND
BGND
SUP
POS
NEG
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
FB
Features
TO VCOM
BACKPLANE
V
MAIN
1

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MAX17010ETL+T Summary of contents

Page 1

... Denotes a lead-free package Exposed paddle. Pin Configuration appears 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 5.5V IN Supply Voltage Range o 3mA SUP Quiescent Current (Switching ...

Page 2

Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp ABSOLUTE MAXIMUM RATINGS IN, SHDN to GND ..................................................-0.3V to +7. AGND ...........................................................-0.3V to +6.0V COMP GND ........................................-0.3V to (VL + 0.3V) VCOM, NEG, POS to ...

Page 3

Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp ELECTRICAL CHARACTERISTICS (continued +3V, Circuit of Figure 1, SUP = 8.5V, V SHDN IN Typical values are +25°C, unless otherwise noted.) A ...

Page 4

Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp ELECTRICAL CHARACTERISTICS (continued +3V, Circuit of Figure 1, SUP = 8.5V, V SHDN IN Typical values are +25°C, unless otherwise noted.) A ...

Page 5

Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp ELECTRICAL CHARACTERISTICS (continued +3V, Circuit of Figure 1, SUP = 8V, V SHDN IN +85°C.) (Note 4) PARAMETER HIGH-VOLTAGE SCAN DRIVER GON1 Input-Voltage Range GON2 ...

Page 6

Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp (Circuit of Figure 3V 8.5V MAIN STEP-UP CONVERTER EFFICIENCY 100 5. 3. ...

Page 7

Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp (Circuit of Figure 3V 8.5V MAIN STEP-UP CONVERTER LOAD-TRANSIENT RESPONSE (30mA TO 300mA 0mA 100μs/div STEP-UP CONVERTER TIMER DELAY LATCH ...

Page 8

Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp (Circuit of Figure 3V 8.5V MAIN OPERATIONAL AMPLIFIER RAIL-TO-RAIL INPUT/OUTPUT WAVEFORMS MAX17010 toc16 V POS 5V/div 0V V VCOM 5V/div 0V 10μs/div ...

Page 9

Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp PIN NAME 1, 24, 30, N.C. No Connection. Not internally connected. 31 PGND Power Ground. Source connection of the internal step-up regulator power switch. Feedback Pin. ...

Page 10

Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp V GOFF 0.1μ +2.7V TO +5.5V C1 10μF 6.3V 1μF C COMP 220pF 0.22μ GOFF Figure 1. MAX17010 Typical Application Circuit Typical Application Circuit The ...

Page 11

Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp Table 2. Component Suppliers SUPPLIER PHONE Fairchild 408-822-2000 Sumida 847-545-6700 TDK 847-803-6100 Toshiba 949-455-2000 Note: Indicate that you are using the MAX17010 when contacting these component suppliers ...

Page 12

Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp The regulator controls the output voltage, and the power delivered to the output, by modulating the duty cycle (D) of the internal power MOSFET in each switching cycle. The ...

Page 13

Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp Linear Regulator (VL) The MAX17010 includes an internal 4V linear regulator. SUP is the input of the linear regulator. The input voltage range is between 5V and 18V. The ...

Page 14

Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp The high-voltage, level-shifting scan drivers are designed to drive the TFT panels with row-drivers inte- grated on the panel glass. Its eight outputs swing from +30V (max) to -6.3V ...

Page 15

Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp Using the circuit’s minimum input voltage (2.2V) and estimating efficiency of 80% at that operating point: × DCMAX ( ...

Page 16

Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp The largest portions of power dissipation in the step-up regulator are the internal MOSFET, inductor, and the out- put diode. If the step-up regulator has 90% efficiency, about 3% ...

Page 17

... 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 ____________________ 17 © 2007 Maxim Integrated Products ...

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