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參數(shù)資料
| 型號： | HV824 |
| 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(qū)動器) |
| 中文描述： | 高電壓發(fā)光燈驅(qū)動器（輸入電壓1.0 - 1.6V的，高壓電致反光燈驅(qū)動器） |
| 文件頁數(shù)： | 1/3頁 |
| 文件大?。?/td> | 24K |
| 代理商： | HV824 |
15-25
HV824
High Voltage EL Lamp Driver
Features
Processed with HVCMOS
technology
1.0V to 1.6V supply voltage
DC to AC conversion
Permits the use of high-resistance elastomeric lamp
connectors
Adjustable output lamp frequency to control lamp color,
lamp life, and power consumption
Adjustable converter frequency to eliminate harmonics and
optimize power consumption
Enable/disable function
Low current draw under no load condition
Package Options
Device
Input Voltage
8-Lead SO
Die
HV824
1.0V to 1.6V
HV824LG
HV824X
Ordering Information
General Description
The Supertex HV824 is a high voltage driver designed to drive EL
lamps with capacitive loads of 2nF to 15nF. The input supply voltage
range is 1.0V to1.6V. The device uses a single inductor and a
minimum number of passive components. Typical output voltage
applied to the EL lamp is 120V to 150V peak-to-peak. The HV824
can be enabled/disabled by connecting the R
SW
resistor to
V
DD
/ground. In die form, the device has an enable bar pad which
enables the IC when it is at logic low.
The HV824 has two internal oscillators, a switching MOSFET, and
a high voltage EL lamp driver. The frequency for the switching
MOSFET is set by an external resistor connected between the
R
sw-osc
pin and the V
DD
pin. The EL lamp driver frequency is set by
an external resistor connected between the 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
μ
F to 0.1
μ
F capacitor is connected between C
s
and GND
pins. The EL lamp is connected between V
A
and V
B
.
The switching MOSFET charges the external inductor and dis-
charges it into the 0.01
μ
F to 0.1
μ
F capacitor at C
s
. The voltage at
C
S
will start to increase. Once the voltage at C
s
reaches a nominal
value of 75V, the switching MOSFET is turned OFF to conserve
power. The outputs V
A
and V
B
are configured as an H-bridge and
are switching in opposite states to achieve a maximum voltage of
180V peak-to-peak across the EL lamp.
Pin Configuration
Α
Applications
Pagers
Portable Transceiver
Portable Instrumentation
Cellular Phones
Advanced Information
Absolute Maximum Ratings*
Supply Voltage, V
DD
Output Voltage, V
Cs
Operating Temperature Range
-0.5V to +2.0V
-0.5V to +120V
-25
°
C to +85
°
C
-65
°
C to +150
°
C
Storage Temperature Range
Power Dissipation
400mW
Note
:
*All voltages are referenced to GND.
V
DD
V
A
V
B
C
S
L
X
R
SW-osc
R
EL-osc
GND
1
2
3
4
8
7
6
5
SO-8
top view
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HV825 | High-Voltage EL Lamp Driver(輸入電壓1.0-1.6V,高壓電致反光燈驅(qū)動器) |
| HV825 | High Voltage EL Lamp Driver |
| HV825LG | High Voltage EL Lamp Driver |
| HV825MG | High Voltage EL Lamp Driver |
| HV825X | High Voltage EL Lamp Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HV824LG | 制造商:SUPERTEX 制造商全稱:SUPERTEX 功能描述:High Voltage EL Lamp Driver |
| HV824X | 制造商:SUPERTEX 制造商全稱:SUPERTEX 功能描述:High Voltage EL Lamp Driver |
| HV825 | 制造商:SUPERTEX 制造商全稱:SUPERTEX 功能描述:High Voltage EL Lamp Driver |
| 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:_ |
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