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參數資料
| 型號： | HV825 |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | High-Voltage EL Lamp Driver(輸入電壓1.0-1.6V,高壓電致反光燈驅動器) |
| 中文描述： | 高電壓發光燈驅動器（輸入電壓1.0 - 1.6V的，高壓電致反光燈驅動器） |
| 文件頁數： | 1/4頁 |
| 文件大小： | 25K |
| 代理商： | HV825 |
HV825
14
Absolute Maximum Ratings*
Supply voltage, V
DD
-0.5V to +2.5V
Operating Temperature Range
-25
°
C to +85
°
C
Storage Temperature Range
-65
°
C to +150
°
C
MSOP-8 Power Dissipation
300mW
SO-8 Power Dissipation
400mW
Note
:
*All voltages are referenced to GND.
High Voltage EL Lamp Driver
Features
Processed with HVCMOS
technology
1.0V to 1.6V operating supply voltage
DC to AC conversion
Output load of typically up to 6nF
Adjustable output lamp frequency
Adjustable converter frequency
Enable function
General Description
The Supertex HV825 is a high voltage driver designed for driving
EL lamps typically up to 6nF. The input supply voltage range is
from 1.0V to 1.6V. The device uses a single inductor and a
minimum number of passive components. Typical output
voltage that can be applied to the EL lamp is
±
56V.
The HV825 can be enabled/disabled by connecting the R
SW-osc
resistor to V
DD
/ground.
The HV825 has two internal oscillators, a switching bipolar
junction transistor (BJT), and a high voltage EL lamp driver. The
frequency for the switching BJT is set by an external resistor
connected between the R
SW-osc
pin and the supply pin V
DD
. The
EL lamp driver frequency is set by an external resistor connected
between R
EL-osc
pin and the V
DD
pin. An external inductor is
connected between the L
X
and V
DD
pins. A 0.01 to 0.1
μ
F, 100V
capacitor is connected between C
S
and ground. The EL lamp is
connected between V
A
and V
B
.
The switching BJT charges the external inductor and discharges
it into the 0.01 to 0.1
μ
F, 100V capacitor at C
S
. The voltage at C
S
will start to increase. The outputs V
A
and V
B
are configured as
an H-bridge and are switching in opposite states to achieve a
peak-to-peak voltage of two times the V
CS
voltage across the EL
lamp.
Pin Configuration
Applications
Pagers
Portable Transceiver
Cellular phones
Remote control units
Calculators
1
2
3
4
8
7
6
5
V
DD
R
EL-osc
V
A
V
B
GND
R
SW-osc
C
s
L
x
top view
SO-8/MSOP-8
For detailed circuit and application information, please refer
to application notes AN-H33 and AN-H34.
HV825
01/06/00
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 device 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 complete liability information covering this and other Supertex products,
refer to the Supertex 1998 Databook.
Package Options
Device
Input Voltage
8-Lead SO
MSOP-8
Die
HV825
1.0 to 1.6V
HV825LG
HV825MG
HV825X
* Product supplied on 1000 piece carrier tape reels.
Ordering Information
相關PDF資料 |
PDF描述 |
|---|---|
| HV825 | High Voltage EL Lamp Driver |
| HV825LG | High Voltage EL Lamp Driver |
| HV825MG | High Voltage EL Lamp Driver |
| HV825X | High Voltage EL Lamp Driver |
| HV826 | High-Voltage EL Lamp Driver(輸入電壓1.8-3.5V,高壓電致反光燈驅動器) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HV825_07 | 制造商:SUPERTEX 制造商全稱:SUPERTEX 功能描述:High Voltage EL Lamp Driver IC |
| HV8250D4MI | 制造商:n/a 功能描述:_ |
| HV8-250D4MI | 制造商:n/a 功能描述:_ |
| HV825DB1 | 功能描述:電源管理IC開發工具 EL LAMP DRIVER DEMOBOARD RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| HV825LG | 功能描述:顯示驅動器和控制器 HVCMOS RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
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