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TK65940M PDF预览

TK65940M

更新时间： 2024-11-11 19:21:59
品牌 Logo 应用领域
TOKO 驱动光电二极管接口集成电路
页数 文件大小 规格书
15页 92K
描述
EL Driver, 1-Segment, PDSO10, MSOP-10

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中文翻译

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TK65940M 技术参数

生命周期：Obsolete包装说明：TSSOP,
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.84
接口集成电路类型：EL DISPLAY DRIVERJESD-30 代码：S-PDSO-G10
长度：3 mm复用显示功能：NO
功能数量：1区段数：1
端子数量：10最高工作温度：80 °C
最低工作温度：-30 °C封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装形状：SQUARE
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH认证状态：Not Qualified
座面最大高度：1.1 mm最大供电电压：6 V
最小供电电压：2 V标称供电电压：3.6 V
表面贴装：YES温度等级：COMMERCIAL EXTENDED
端子形式：GULL WING端子节距：0.5 mm
端子位置：DUAL宽度：3 mm
Base Number Matches：1

TK65940M 数据手册

 浏览型号TK65940M的Datasheet PDF文件第2页浏览型号TK65940M的Datasheet PDF文件第3页浏览型号TK65940M的Datasheet PDF文件第4页浏览型号TK65940M的Datasheet PDF文件第5页浏览型号TK65940M的Datasheet PDF文件第6页浏览型号TK65940M的Datasheet PDF文件第7页 
TK6594xM  
ADVANCED  
SPECIFICATION  
EL LAMP DRIVER WITH INTENSITY CONTROL  
FEATURES  
n Designed for 40 nF to 80 nF Panel Capacitance  
APPLICATIONS  
n PDA/PCA  
n Lamp Voltage Independent of Input Voltage and  
n HandHeldDevices  
n BatteryPoweredSystems  
n GPSSystems  
Temperature  
n Lamp Frequency Independent of Input Voltage and  
Temperature  
n LCDModules  
n High Ratio of Brightness / Input Power  
n CellularTelephones  
n ConsumerElectronics  
n ConstantBrightnessVersusInputSupplyChanges  
n Panel Voltage Slew Rates Controlled for Life  
Enhancement  
n Single Intensity Control and Enable Pin  
n AnalogIntensityControl  
Furthermore, the drive architecture of the TK6594x has  
been designed to control the 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 de-  
creaseRFinterference.  
n PWM Control Method (Lower RF Noise)  
n AdjustableOutputVoltage  
DESCRIPTION  
The TK6594x Electroluminescent (EL) Lamp Driver has  
been optimized for battery powered systems where power  
consumption and driving large EL lamps (~50 cm2 to 100  
cm2) to high brightness are the primary concerns.  
Aneasytouse“IntensityControl”pinisavailabletodimthe  
panel and reduce battery drain as well as provide better  
contrast control to the user. The same pin is also used to  
activate on/off (disable) control of the IC.  
The proprietary architecture (detailed in the Theory of  
Operation section) of the TK6594x provides a constant  
output power to the lamp, independent of variations in the  
batteryvoltage.Thisarchitectureallowstheoutputvoltage  
to remain relatively constant as battery voltages decay,  
withouttheneedfordirectlysensingthehighvoltageoutput  
of the EL driver.  
The TK6594x is available in the small MSOP-10 surface  
mountpackage.  
TK6594xM  
+
IND  
EL  
HV  
PGND  
GND  
The oscillator circuits for the boost converter and lamp  
driverarebothinternallygeneratedintheTK6594x,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  
temperatureandsupplyvoltage.Theclockfrequencyofthe  
lamp driver tracks the frequency of the boost converter by  
a constant scaling factor.  
-
EL  
V
CC  
INT / EN  
CAP-  
+
CAP  
BLOCKDIAGRAM  
ENABLE  
IND  
HV BOOST  
CONTROL  
V
CC  
PGND  
ORDERING INFORMATION  
TK6594xM  
I
N
T
OSCILLATOR  
GND  
HV  
Tape/Reel Code  
Lamp Frequency Code  
Charge  
Pump  
INTENSITY /  
ENABLE  
CONTROL  
H
BRIDGE  
+
-
-
CAP  
CAP  
+
EL  
EL  
TAPE/REEL CODE  
TL: Tape Left  
January 21, 2002 TOKO, Inc.  
Page1  
1234567...15

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