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HV839X PDF预览

HV839X

更新时间： 2023-12-18 00:00:00
品牌 Logo 应用领域
超科 - SUPERTEX 驱动接口集成电路
页数 文件大小 规格书
8页 58K
描述
EL Driver, 2-Segment, DIE

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HV839X 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：DIE
包装说明：DIE,Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.77数据输入模式：SERIAL
接口集成电路类型：EL DISPLAY DRIVERJESD-30 代码：X-XUUC-N
JESD-609代码：e0复用显示功能：NO
功能数量：1区段数：2
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：DIE
封装形状：UNSPECIFIED封装形式：UNCASED CHIP
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
最大供电电压：5 V最小供电电压：2 V
标称供电电压：3 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：TIN LEAD
端子形式：NO LEAD端子位置：UPPER
处于峰值回流温度下的最长时间：NOT SPECIFIEDBase Number Matches：1

HV839X 数据手册

 浏览型号HV839X的Datasheet PDF文件第2页浏览型号HV839X的Datasheet PDF文件第3页浏览型号HV839X的Datasheet PDF文件第4页浏览型号HV839X的Datasheet PDF文件第5页浏览型号HV839X的Datasheet PDF文件第6页浏览型号HV839X的Datasheet PDF文件第7页 
HV831/HV839  
High Voltage Dual EL Lamp Driver  
Features  
General Description  
❏ Independent input control for lamp selection  
The Supertex HV831 and HV839 are high voltage drivers  
designed for driving two EL lamps with a combined area of 3.5  
square inches. The input supply voltage range is from 2.0V to  
5.0V. The device is designed to reduce the amount of audible  
noise emitted by the lamp. These devices use a single inductor  
and a minimum number of passive components. The nominal  
regulated output voltage that is applied to the EL lamp is ±80V for  
HV831and±90VforHV839.HV839willprovidehigherbrightness  
due to its higher output voltage regulation. The chip can be  
disabled by connecting C1 and C2 (pins 1 and 4) to GND.  
❏ Split supply capability  
❏ Patented output timing  
❏ One minature inductor to power both lamps  
❏ 150nA shutdown current  
❏ Wide input voltage range (2.0V to 5.0V)  
❏ Output voltage regulation  
❏ No SCR output  
The HV831 and HV839 have an internal oscillator, a switching  
MOSFET, and two high voltage EL lamp drivers. The frequency  
fortheswitchingMOSFETissetbyanexternalresistorconnected  
between the RSW-OSC pin and the voltage supply pin VDD. The EL  
lamp driver frequency is set by dividing the MOSFET switching  
frequency by 128. An external inductor is connected between  
the LX and VDD pins. Depending on EL lamp size, 0.001 to  
0.01µF, 100V capacitor is connected between CS and Ground.  
The EL lamps are connected between EL1 to Com and EL2 to  
Com.  
❏ Small package 10-pin MSOP dual EL driver IC  
❏ Low audible noise via Patent Pending technology  
Applications  
❏
❏
❏
❏
❏
Mobile cellular phones, dual display  
Keypad and LCD backlighting  
Portable instrumentation  
Dual segment lamps  
Two input control pins (C1 and C2) are available to select various  
modes of the device. The device can be disabled by applying  
GND to both C1 and C2 (pins 1 and 4). C1 and C2 control the ON/  
OFF states of EL1 and EL2, respectively. EL1 will be ON when C1  
is at VDD and EL2 will be ON when C2 is at VDD. EL1 and EL2 will  
Hand held wireless communication devices  
be ON when both C1 and C2 are at VDD  
.
The switching MOSFET charges the external inductor and  
discharges it into the capacitor at CS. The voltage at CS will start  
to increase. Once the voltage at CS reaches a nominal value of  
80V for HV831 and 90V for HV839, the switching MOSFET is  
turned off to conserve power. The outputs EL1 to Com and EL2  
toComareconfiguredasHbridgesandareswitchinginopposite  
states to achieve 160/180V across the EL lamp for HV831/  
HV839.  
Typical Application Circuit  
VDD  
0
C1  
EL1 10  
VDD  
1
2
EL Lamp 1  
VDD  
0
VDD  
EL2  
9
EL Lamp 2  
Com  
CS  
RSW-OSC  
8
7
6
3
4
5
C2  
1N914  
LX  
GND  
LX  
+
Cs  
100V  
VIN  
HV831MG/  
HV839MG  
_
03/24/03  
Supertex Inc. does not recommend the use of its products in life support applications and will not knowingly sell its products for use in such applications unless it receives an adequate "products liability  
indemnification insurance agreement." Supertex does not assume responsibility for use of devices described and limits its liability to the replacement of devices determined to be defective due to  
workmanship. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications, refer to the  
Supertex website: http://www.supertex.com. For complete liability information on all Supertex products, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website.  
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