|
|
PDF HV824 Data sheet ( Hoja de datos )
| Número de pieza | HV824 | |
| Descripción | High Voltage EL Lamp Driver | |
| Fabricantes | Supertex | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de HV824 (archivo pdf) en la parte inferior de esta página. Total 3 Páginas | ||
|
No Preview Available !
www.DataSheet4U.com
HV824
Advanced Information
High Voltage EL Lamp Driver
Ordering Information
Package Options
Device
Input Voltage 8-Lead SO
Die
HV824
1.0V to 1.6V
HV824LG
HV824X
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
Applications
Pagers
Portable Transceiver
Portable Instrumentation
Cellular Phones
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 RSW resistor to
VDD/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
Rsw-osc pin and the VDD pin. The EL lamp driver frequency is set by
an external resistor connected between the REL-osc pin and the VDD
pin. An external inductor is connected between the Lx and VDD pins.
A 0.01µF to 0.1µF capacitor is connected between Cs and GND
pins. The EL lamp is connected between VA and VB.
The switching MOSFET charges the external inductor and dis-
charges it into the 0.01µF to 0.1µF capacitor at Cs. The voltage at
CS will start to increase. Once the voltage at Cs reaches a nominal
value of 75V, the switching MOSFET is turned OFF to conserve
power. The outputs VA and VB 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.
Absolute Maximum Ratings*
Supply Voltage, VDD
-0.5V to +2.0V
Output Voltage, VCs
-0.5V to +120V
Operating Temperature Range
-25°C to +85°C
Storage Temperature Range
-65°C to +150°C
Power Dissipation
400mW
Note:
*All voltages are referenced to GND.
Pin Configuration
ςΑ VDD 1
RSW-osc 2
REL-osc 3
GND 4
8 VA
7 VB
6 CS
5 LX
SO-8
top view
15-25
1 page | ||
| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet HV824.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| HV823 | High Voltage EL Lamp Driver IC |  Supertex Inc |
| HV824 | High Voltage EL Lamp Driver | Supertex |
| HV825 | High Voltage EL Lamp Driver | Supertex Inc |
| HV826 | High Voltage EL Lamp Driver | Supertex Inc |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |