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HV856K7-G

更新时间： 2024-11-04 03:06:15
品牌 Logo 应用领域
超科 - SUPERTEX 显示驱动器驱动程序和接口接口集成电路高压
页数 文件大小 规格书
7页 453K
描述
High Voltage Tri-EL Lamp Driver IC

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中文翻译

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HV856K7-G 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Transferred零件包装代码：DFN
包装说明：HVSON,针数：10
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.76
Is Samacsys：N数据输入模式：SERIAL
接口集成电路类型：EL DISPLAY DRIVERJESD-30 代码：S-XDSO-N10
JESD-609代码：e3长度：3 mm
复用显示功能：NO功能数量：1
区段数：3端子数量：10
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：UNSPECIFIED封装代码：HVSON
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：0.8 mm最大供电电压：6.5 V
最小供电电压：1.8 V标称供电电压：3 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：NO LEAD
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3 mm
最小 fmax：1 MHzBase Number Matches：1

HV856K7-G 数据手册

 浏览型号HV856K7-G的Datasheet PDF文件第2页浏览型号HV856K7-G的Datasheet PDF文件第3页浏览型号HV856K7-G的Datasheet PDF文件第4页浏览型号HV856K7-G的Datasheet PDF文件第5页浏览型号HV856K7-G的Datasheet PDF文件第6页浏览型号HV856K7-G的Datasheet PDF文件第7页 
HV856  
High Voltage Tri-EL Lamp Driver IC  
Features  
General Description  
The Supertex HV856 is a high voltage, triple EL lamp driver  
designed for driving combined EL lamps of up to 3.0in2 (1.0 in2  
each). It is a higher voltage version of the HV858. The input  
supply voltage range is from 1.8V to 6.5V. The device is de-  
signed so that the input voltage to the inductor can differ from  
the input voltage to the device (split supply). The device uses  
a single inductor and a minimum number of passive compo-  
nents. The nominal regulated output voltage that is applied to  
the EL lamp is 105V. The HV856 has two internal oscillators;  
one for the internal switching MOSFET and the other for the  
high voltage EL lamp driver. The EL lamp frequency is fixed  
internally at 500Hz. The power converter oscillator runs 256  
times faster than the EL lamp driver at 128kHz.  
► High voltage, Tri-EL lamp driver with common terminal  
► Independent brightness control for all three lamps  
► 210VPP output voltage for higher brightness  
► 1.8V to 6.5V operating supply voltage  
► Output voltage regulation  
► Two-pin serial data communication for control  
► Linear brightness control with seven steps at constant  
efficiency  
► 128kHz fixed switching frequency  
► Split supply capability  
► Patented high efficiency EL lamp driver  
► Single miniature inductor drives all three lamps  
► Only four external components  
► Burst mode power converter for best efficiency  
► CMOS compatible serial interface with noise rejection  
► 150nA max. leakage current when disabled  
► Power-on reset causes all outputs to be off when first  
powered up  
► Available in 10-Lead DFN package (0.8mm thickness)  
An external inductor is connected between the LX and VDD  
pins (or between the LX pin and separate voltage source in  
the case of a split supply application). A 0.002-0.01µF, 200V  
capacitor is connected between the CS pin and ground.  
The switching MOSFET charges the external inductor and  
discharges it into the capacitor at the CS pin. The voltage at  
CS will start to increase. Once the voltage at CS reaches a  
nominal value of 105V, the switching MOSFET is turned OFF  
to conserve power.  
One side of the three EL lamps is connected to the COM pin  
of the HV856 and the other side to the EL1, EL2, and EL3 pins  
of the HV856. Each EL lamp output may be independently  
controlled to have one of the seven brightness levels or can  
be completely turned OFF by a 10-bit serial data input register.  
The 10-bit control code has three bits to control the bright-  
ness level of each EL lamp and one bit to optionally control  
the power converter. The 3-bit binary brightness control code  
controls the number of 500Hz cycles (from 0 to 7) in a group  
of seven cycles.  
Applications  
► Multi-segment, variable displays  
► Cell phone keypads and displays  
► MP3 players  
Typical Application Circuit  
LX  
+
-
D
CS  
VIN  
CIN  
1
2
10  
LX  
CS  
9
COM  
GND  
VDD  
SDI  
8
3
4
5
EL3  
EL2  
EL1  
EL Lamp 3  
EL Lamp 2  
EL Lamp 1  
+
7
6
VDD  
CDD  
-
SCK  
Serial Data in  
Clock  
HV856K7  
1234567

中文翻译

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