Datasheet > MAX14514

MAX14514

更新时间： 2024-11-21 14:57:23

品牌	Logo	应用领域
亚德诺 - ADI		驱动驱动器
页数	文件大小	规格书
15页	854K
描述
双通道场致发光灯驱动器

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中文翻译

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MAX14514 数据手册

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MAX14514

Dual Electroluminescent Lamp Driver

General Description

Beneﬁts and Features

● Dual ±15kV ESD-Protected EL Lamp Outputs

The MAX14514 is a high-voltage DC-AC converter

ideal for driving two electroluminescent (EL) lamps. The

MAX14514 features a +2.7V to +5.5V input range that

allows the device to accept a wide variety of voltage

sources, including single-cell lithium-ion (Li+) batteries.

The lamp outputs of the device generate up to 300VP-P

for maximum lamp brightness.

● 300V

Maximum Output for Highest Brightness

P-P

● +2.7V to +5.5V Input Voltage Range

● Resistor Adjustable Slew-Rate Control

● Resistor Adjustable Lamp and Switching Converter

Frequencies

The MAX14514 utilizes an inductor-based boost con-

verter to generate the high voltage necessary to drive EL

lamps and allows the use of a 220µH inductor to effec-

tively drive total combined lamp sizes of up to 20nF.

● DIM Input for Controlling Output Voltage Through DC

Analog Voltage, PWM, or Resistor to GND

● Capacitor Adjustable Soft Turn-On/-Off

● Low 150nA Shutdown Current

The MAX14514 uses a high-voltage full-bridge output

stage to convert the high voltage generated by the boost

converter to an AC waveform suitable for driving the

EL panels. An external resistor controls the slew-rate of

the rising and falling edges of the AC drive waveform to

reduce audible noise output. The high-voltage outputs are

ESD protected up to ±15kV Human Body Model, ±4kV

IEC 61000-4-2 Air Gap Discharge, and ±4kV IEC 61000-

4-2 Contact Discharge.

● Thermal Shutdown

● Space Saving, 14-Pin, 3mm x 3mm TDFN Package

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

MAX14514ETD+

-40°C to +85°C

14 TDFN-EP*

+Denotes lead(Pb)-free/RoHS-compliant package.

*EP = Exposed paddle.

The MAX14514 features dimming/enable controls (DIM1,

DIM2) for each output to allow the user to set the peak-

to-peak output voltage with a PWM signal, a DC analog

voltage, or a resistor connected from DIM_ to GND. The

MAX14514 also provides a slow turn-on/-off feature that

slowly ramps the output voltage applied to the lamp when

enabled or disabled.

Pin Conﬁguration

TOP VIEW

The MAX14514 enters a low-power shutdown mode when

the EN and DIM_ inputs are connected to GND. The

device also features thermal shutdown if the die tempera-

ture exceeds +158°C (typ).

14 13 12 11 10

The MAX14514 is available in a space-saving, 14-pin,

3mm x 3mm TDFN package and is specified over the

extended -40°C to +85°C operating temperature range.

MAX14514

*EP

Applications

● I Keypad Backlighting

● LCD Backlighting

● PDAs/Smartphones

TDFN-EP

(3mm x 3mm)

*EP = EXPOSED PAD. CONNECT EP TO GND OR LEAVE UNCONNECTED.

19-4466; Rev 2; 9/18

12 3 4 5 6 7...15

中文翻译

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与MAX14514相关器件

型号	品牌	获取价格	描述	数据表
MAX14514ETD+	MAXIM	获取价格	Dual Electroluminescent Lamp Driver
MAX14515	MAXIM	获取价格	High-Voltage Liquid Lens Driver
MAX14515	ADI	获取价格	高压液体镜头驱动器
MAX14515AEWA+T	MAXIM	获取价格	Buffer/Inverter Based Peripheral Driver
MAX14515EWA+	MAXIM	获取价格	High-Voltage Liquid Lens Driver
MAX1452	MAXIM	获取价格	Low-Cost Precision Sensor Signal Conditioner
MAX1452	ADI	获取价格	低成本、高精度传感器信号调理器
MAX1452_09	MAXIM	获取价格	Low-Cost Precision Sensor Signal Conditioner
MAX1452_10	MAXIM	获取价格	Low-Cost Precision Sensor Signal Conditioner
MAX14521E	MAXIM	获取价格	Quad, High-Voltage EL Lamp Driver with I2C Interface

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