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| 型号： | MAX17100ETM+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/35页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST INT-SWITCH 48-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | LCD 电视机/监控器 |
| 电源电压： | 2.5 V ~ 6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-WFQFN 裸露焊盘 |
| 供应商设备封装： | 48-TQFN-EP（6x6） |
| 包装： | 带卷 (TR) |
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ATION
EVALU
AVAILA
19-4644; Rev 1; 8/10
KIT
BLE
Internal-Switch Boost Regulator with Integrated Scan
Driver, VCOM Calibrator, and Op Amp for TFT LCDs
General Description
The MAX17100 includes a high-voltage step-up regula-
tor, three high-performance operational amplifiers, two
linear regulators, two high-voltage switch control blocks
for gate-driver supply modulation, a digital VCOM cali-
brator, and six independent scan drivers.
The DC-DC converter is a 1.2MHz current-mode step-
up regulator with a built-in power MOSFET and pro-
vides the regulated supply voltage for the panel source
driver ICs. The built-in power MOSFET allows output
voltages to be as high as 18V from inputs of 2.5V to 6V.
A built-in 7-bit digital soft-start function limits inrush cur-
rents during startup. The step-up regulator provides
fast transient response to pulsed loads while producing
efficiencies over 87%.
Three operational amplifiers, typically used as the
gamma correction divider string, are configured as
unity-gain buffers and feature high output short-circuit
current (200mA), fast slew rate (45V/μs), and wide
bandwidth (20MHz). Their rail-to-rail inputs and outputs
maximize application flexibility.
Two linear regulators provide regulated gate-on and
gate-off supplies for TFT panel. The two high-voltage
switch control blocks modulate the shape of the gate-
on supply with adjustable startup delay.
One operational amplifier is designed to drive the LCD
backplane (VCOM). It features high short-circuit current
of 200mA. The programmable VCOM calibrator adjusts
the VCOM output-voltage level through serial interface
by sinking a programmable current from the VCOM
resistor-divider. The calibrator includes nonvolatile
memory cells that store the desired VCOM voltage level.
The six independent high-voltage level-shifting scan
drivers are designed to drive the TFT panel gate lines.
The outputs swing from +35V (maximum) to -15V (mini-
mum) and can swiftly drive capacitive loads.
The MAX17100 is available in a lead-free, 48-pin, thin
QFN package with 0.4mm lead spacing. The package
is a 6mm x 6mm square with a maximum thickness of
Features
o 2.5V to 6V Input Supply Range
o 1.2MHz Current-Mode Step-Up Converter
Fast Transient Response to Pulsed Load
High-Accuracy Output Voltage (1%)
Built-In 20V, 3A, 0.16 ? n-Channel Power
MOSFET
Cycle-by-Cycle Current Limit
High Efficiency (87%)
o Three High-Performance Operational Amplifier s
200mA Output Short-Circuit Current
45V/μs Slew Rate
20MHz, -3dB Bandwidth
Rail-to-Rail Inputs and Outputs
o Linear Regulator for Gate-On and Gate-Off Supply
o Two Logic - Controlled High-Voltage Switches with
Adjustable Delay
o Programmable VCOM Calibrator
7-Bit Adjustable Current-Sink Output
Serial Interface
Nonvolatile Setting Memory
o Six Independent Level - Shifting Scan Drivers
o Built-In Sequencing
o Soft-Start and Timer-Delayed Fault Latch for All
Regulator Outputs
o Thermal-Overload Protection
o Gate Driver for External Input-Side Series MOSFET
Ordering Information
0.8mm for ultra-thin LCD panel design.
Applications
PART
MAX17100ETM+
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
48 Thin QFN-EP*
LCD Monitors
LCD TVs
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Pin Configuration and Minimal Operating Circuit appear at
end of data sheet.
________________________________________________________________ Maxim Integrated Products
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.
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| MAX17101ETJ+T | 功能描述:DC/DC 开关控制器 Dual PWM Step-Down Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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