参数资料
型号: MAX17014ETM+T
厂商: Maxim Integrated Products
文件页数: 1/33页
文件大小: 0K
描述: IC PWR SUPPLY MULT-OUTPUT 48TQFN
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
电流 - 电源: 8mA
电源电压: 8 V ~ 16.5 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(7x7)
包装: 带卷 (TR)
19-1045; Rev 1; 11/09
ATION
ILABLE
EVALU
AVA
KIT
Low-Cost Multiple-Output
Power Supply for LCD TVs
General Description
The MAX17014 multiple-output power-supply controller
generates all the supply rails for thin-film transistor
(TFT) liquid-crystal display (LCD) panels in TVs and
monitors operating from a regulated 12V input. It
includes a step-down and a step-up regulator, a posi-
tive and a negative charge pump, two operational
amplifiers, and a Dual Mode? logic-controlled high-
voltage switch control block. The MAX17014 can oper-
ate from 8V to 16.5V input voltages and is optimized for
LCD TV panel and LCD monitor applications running
directly from 12V supplies.
The step-up and step-down regulators feature internal
power MOSFETs and high-frequency operation allow-
ing the use of small inductors and capacitors, resulting
in a compact solution. Both switching regulators use
fixed-frequency current-mode control architectures,
providing fast load-transient response and easy com-
pensation. A current-limit function for internal switches
and output-fault shutdown protect the step-up and
step-down power supplies against fault conditions. The
MAX17014 provides soft-start functions to limit inrush
current during startup. The MAX17014 provides
adjustable power-up timing.
The positive and negative charge-pump regulators pro-
vide TFT gate driver supply voltages. Both output volt-
ages can be adjusted with external resistive
voltage-dividers. The switch control block allows the
manipulation of the positive TFT gate driver voltage.
The MAX17014 includes two high-current operational
amplifiers designed to drive the LCD backplane
(VCOM). The amplifier features high output current
(±150mA), fast slew rate (100V/μs), wide bandwidth
(20MHz), and rail-to-rail inputs and outputs. A series
p-channel MOSFET is integrated to sequence power to
AV DD after the MAX17014 has proceeded through
normal startup, and provides True Shutdown?.
The MAX17014 is available in a small (7mm x 7mm),
low-profile (0.8mm), 48-pin thin QFN package and
operates over a -40°C to +85°C temperature range.
Features
o Optimized for 10.8V to 13.2V Input Supply
o 8V to 16.5V Input Supply Range
o Selectable Frequency (600kHz/1.2MHz)
o Current-Mode Step-Up Regulator
Built-In 20V, 3.3A, 110m Ω n-Channel MOSFET
High-Accuracy Output Voltage (1%)
True Shutdown
Fast Load-Transient Response
High Efficiency
3ms Internal Soft-Start
o Current-Mode Step-Down Regulator
Built-In 20V, 2.5A, 120m Ω n-Channel MOSFET
Fast Load-Transient Response
Adjustable Output Voltage Down to 1.25V
Skip Mode at Light Load
High Efficiency
3ms Internal Soft-Start
o Adjustable Positive and Negative Charge-Pump
Regulators
o Soft-Start and Timer-Delay Fault Latch for All
Outputs
o Logic-Controlled High-Voltage Integrated
Switches with Adjustable Delay
o Two High-Speed Operational Amplifiers
±150mA Short-Circuit Current
100V/μs Slew Rate
20MHz, -3dB Bandwidth
o 120m Ω p-Channel FET for AV DD Sequencing
o Input Undervoltage Lockout and Thermal-
Overload Protection
o 48-Pin, 7mm x 7mm Thin QFN Package
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
LCD TV Panels
Applications
MAX17014ETM+
-40°C to +85°C
48 Thin QFN
7mm x 7mm
LCD Monitor Panels
Dual Mode is a trademark of Maxim Integrated Products, Inc.
True Shutdown is a trademark of Maxim Integrated Products, Inc.
+Denotes a lead(Pb)-free/RoHS-compliant package.
Simplified Operating Circuit and Pin Configuration 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.
1
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MAX17015AETP+T 功能描述:电池管理 1.2MHz High-Perf Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
MAX17015BETP+ 功能描述:电池管理 1.2MHz High-Perf Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
MAX17015BETP+T 功能描述:电池管理 1.2MHz High-Perf Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel