TK65927M

更新时间： 2024-11-10 22:42:15

品牌	Logo	应用领域
TOKO		驱动器
页数	文件大小	规格书
20页	196K
描述
MEDIUM EL LAMP DRIVER

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技术参数
数据手册

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TK65927M 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.84
Base Number Matches：	1

TK65927M 数据手册

TK6592x

MEDIUM EL LAMP DRIVER

FEATURES

APPLICATIONS

■ High Ratio of Brightness / Input Power

■ Battery Powered Systems

■ Cellular Telephones

■ Pagers

■ ConstantBrightnessVersusInputSupplyChanges

■ Optimized for 9 nf to 27 nf Panel Capacitance

■ Panel Voltage Slew Rates Controlled for Life

■ LCD Modules

Enhancement

■ Wrist Watches

■ Panel Peak to Peak Voltage Independent of Input

■ Consumer Electronics

Voltage and Temperature

The oscillator circuits for the boost converter and lamp

driverarebothinternallygeneratedintheTK6592x,without

the need for external components. The clock frequency of

the boost converter is laser-trimmed to ensure good initial

accuracy that is relatively insensitive to variations in

temperature and supply voltage. The clock frequency of

the lamp driver tracks the frequency of the boost converter

by a constant scaling factor.

■ Panel Peak to Peak Frequency Independent of

Input Voltage and Temperature

■ Miniature Package (SOT23L-6)

■ Operates with Miniature Coil

■ Minimum External Components

■ Laser-Trimmed Fixed Frequency Operation

■ PWM Control Method

■ Adjustable Output Voltage

Furthermore, the drive architecture of the TK6592x has

been designed to limit peak drive current delivered to the

lamp. This approach limits the slew rate of the voltage

across the lamp and has the potential to improve lamp life

and decrease RF interference.

■ Lower Noise (Audio and EMI)

■ Split Power Supply Application

DESCRIPTION

The TK6592x Electroluminescent (EL) Lamp Driver has

beenoptimizedforbatterycontrolledsystemswherepower

consumptionandsizeareprimaryconcerns.Theminiature

device size (SOT23L-6), together with the miniature Toko

EL coils (D32FU, D31FU, D52FU), further helps system

designers reduce the space required to drive the small EL

panels.

The TK6592x is available in a miniature, 6-pin

SOT23L-6 surface mount package

TK6592x

GND

IND

20P

The proprietary architecture (detailed in the Theory of

Operation section) of the TK6592x provides a constant

output power to the lamp, independent of variations in the

batteryvoltage.Thisarchitectureallowstheoutputvoltage

to remain relatively constant as battery voltages decay,

without the need for directly sensing the high voltage

output of the EL driver.

BLOCK DIAGRAM

IND

HV BOOST

CONTROL

ORDERING INFORMATION

GND

TK6592 MTL

OSCILLATOR

Lamp Frequency Code

BRIDGE

LAMP FREQUENCY CODE

TAPE/REEL CODE

TL: Tape Left

TK65920

TK65921*

TK65922

TK65923*

TK65924

175 Hz TK65925*

200 Hz TK65926

225 Hz TK65927*

250 Hz TK65928

275 Hz TK65929*

300 Hz

325 Hz

350 Hz

375 Hz

400 Hz

* Consult factory for availability

of other frequencies.

May 2000 TOKO, Inc.

Page 1

12 3 4 5 6 7...20

中文翻译

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与TK65927M相关器件

型号	品牌	获取价格	描述	数据表
TK65927MTL	TOKO	获取价格	MEDIUM EL LAMP DRIVER
TK65927MTL/B7	TOKO	获取价格	MEDIUM EL LAMP DRIVER
TK65928	TOKO	获取价格	Switching Regulator, Current-mode, 52.8kHz Switching Freq-Max, PDSO6, SOT-23L, SMT-6
TK65928M	TOKO	获取价格	MEDIUM EL LAMP DRIVER
TK65928MTL	TOKO	获取价格	MEDIUM EL LAMP DRIVER
TK65928MTL/B8	TOKO	获取价格	MEDIUM EL LAMP DRIVER
TK65929	TOKO	获取价格	Switching Regulator, Current-mode, 56.3kHz Switching Freq-Max, PDSO6, SOT-23L, SMT-6
TK65929M	TOKO	获取价格	MEDIUM EL LAMP DRIVER
TK65929MTL	TOKO	获取价格	MEDIUM EL LAMP DRIVER
TK65929MTL/B9	TOKO	获取价格	MEDIUM EL LAMP DRIVER

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