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HV830LG

Description
display drivers hvcmos
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size429KB,6 Pages
ManufacturerSupertex
Related ProductsFound1parts with similar functions to HV830LG
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HV830LG Overview

display drivers hvcmos

HV830LG Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
Parts packaging codeSOIC
package instructionSOP,
Contacts8
Reach Compliance Codecompli
ECCN codeEAR99
Interface integrated circuit typeEL DISPLAY DRIVER
JESD-30 codeR-PDSO-G8
JESD-609 codee0
length4.9 mm
Number of functions1
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-25 °C
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Certification statusNot Qualified
Maximum seat height1.75 mm
Maximum supply voltage9.5 V
Minimum supply voltage2 V
Nominal supply voltage3 V
surface mountYES
technologyCMOS
Temperature levelOTHER
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width3.9 mm
Base Number Matches1
Supertex inc.
High Voltage EL Lamp Driver IC
Features
Processed with HVCMOS
®
technology
2.0 to 9.5V operating supply voltage
DC to AC conversion
200V peak-to-peak typical output voltage
Large output load capability typically 50nF
Permits the use of high-resistance elastomeric lamp
components
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
Very low standby current - 30nA typical
HV830
General Description
The Supertex HV830 is a high-voltage driver designed for
driving EL lamps of up to 50nF. EL lamps greater than 50nF
can be driven for applications not requiring high brightness.
The input supply voltage range is from 2.0 to 9.5V. The device
uses a single inductor and a minimum number of passive
components. The nominal regulated output voltage that is
applied to the EL lamp is ±100V. The chip can be enabled by
connecting the resistors on the RSW-Osc and REL-Osc pins
to the VDD pin, and disabled when connected to GND.
The HV830 has two internal oscillators, a switching MOSFET
and a high-voltage EL lamp driver. The frequency of the
switching converter MOSFET is set by an external resistor
connected between the RSW-Osc and the VDD pins. The EL
lamp driver frequency is set by an external resistor connected
between the REL-Osc and the VDD pins. An external inductor
is connected between the LX and VDD pins. A 0.01µF to 0.1µF
capacitor is connected between the CS pin and the GND. The
EL lamp is connected between the VA and VB pins.
The switching MOSFET charges the external inductor and
discharges it into the CS capacitor. The voltage at CS will start
to increase. Once the voltage at CS reaches a nominal value
of 100V, the switching MOSFET is turned OFF to conserve
power. The output pins VA and VB are configured as an H-
bridge and are switched in opposite states to achieve 200V
peak-to-peak across the EL lamp.
Applications
Handheld personal computers
Electronic personal organizers
GPS units
Pagers
Cellular phones
Portable instrumentation
Block Diagram
VDD
RSW-Osc
Switch
Osc
LX
CS
Q
GND
Disable
C
VA
+
_
V
REF
Q
Output
Osc
Q
REL-Osc
Q
VB
Supertex inc.
1235 Bordeaux Drive, Sunnyvale, CA 94089
Tel: 408-222-8888
www.supertex.com

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