HV833MG Supertex, HV833MG Datasheet

Display Drivers HVCMOS

HV833MG

Manufacturer Part Number
HV833MG
Description
Display Drivers HVCMOS
Manufacturer
Supertex
Datasheet

Specifications of HV833MG

Driver Type
EL Lamp Drivers
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
MSOP-8
Minimum Operating Temperature
- 25 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
HV833MG-G
Manufacturer:
SUPERTEX
Quantity:
20 000
Features
Applications
Typical Application Circuit
Supertex inc.
1.8 to 6.5V operating supply voltage
DC to AC conversion
Separately adjustable lamp and converter
frequency
Output voltage regulation
Enable/disable function
Patented output timing for high efficiency
<100nA shutdown current
Split supply capability
LCD backlighting
Portable transceivers
Remote control units
Calculators
PDAs
Global Positioning Systems (GPS)
ON = V
OFF = 0
Supertex inc.
V
IN
V
+
_
DD
DD
Enable Signal
1235 Bordeaux Drive, Sunnyvale, CA 94089
EL Lamp Driver
High Voltage
1
2
3
4
VDD
RSW-Osc
REL-Osc
GND
General Description
The Supertex HV833 is a high voltage driver designed for driving EL
lamps of up to 35nF (10-12in
1.8 to 6.5V. 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 ±90V. The chip can be enabled/disabled by
connecting a resistor between the RSW-Osc pin and the VDD/GND
pins.
The HV833 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 supply 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 pin and VDD
or VIN pin. A 0.003-0.1µF capacitor is connected between the CS pin
and the GND pin. The EL lamp is connected between the VA pin and
the VB pin.
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 90V, 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 180V peak-to-peak across the EL lamp.
VA
VB
CS
LX
8
7
6
5
Tel: 408-222-8888
L
1N914
2
X
). The input supply voltage range is from
www.supertex.com
C
100V
S
EL Lamp
HV833

Related parts for HV833MG

HV833MG Summary of contents

Page 1

... Supertex inc. High Voltage EL Lamp Driver General Description The Supertex HV833 is a high voltage driver designed for driving EL lamps 35nF (10-12in 1.8 to 6.5V. 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 ±90V. The chip can be enabled/disabled by connecting a resistor between the RSW-Osc pin and the VDD/GND pins ...

Page 2

... EL DIFF F Switching transistor frequency SW D Switching transistor duty cycle Supertex inc. Pin Configuration 0.65mm pitch HV833MG-G Product Marking Value -0.5V to 7.5V -0.5V to 125V -40°C to +85°C -65°C to +150°C Package may or may not include the following marks 300mW Min Typ 1 ...

Page 3

... Enable/Disable Function Table Sym Parameter EN-L Logic input low voltage EN-H Logic input high voltage Functional Block Diagram VDD RSW-Osc GND REL-Osc Supertex inc. Min Typ 0.5 DD Switch Osc Disable V REF 1235 Bordeaux Drive, Sunnyvale, CA 94089 3 Max Units Conditions - 0 1.8 to 6.5V ...

Page 4

... Fig. 1: Typical Application/Test Circuit OFF = 4.7µ Typical Performance Device Lamp Size HV833MG 10in 2 Typical Performance Curves for Fig 100 200 V vs 1.0 2.0 3.0 4.0 V (V) IN Brightness vs 1.0 2.0 3.0 4.0 V (V) IN Supertex inc 3.3V Enable Signal VDD VA 8 1.0M ...

Page 5

... Fig. 2: Typical Application OFF = 4.7µ Typical Performance Device Lamp Size HV833MG 6.0in 2 Typical Performance Curves for Fig 100 200 V vs 1.0 2.0 3.0 4.0 V (V) IN Brightness vs 1.0 2.0 3.0 4.0 V (V) IN Supertex inc 3.0V 5.0V Enable Signal VDD VA 8 750k ...

Page 6

... Fig. 3: Typical Application OFF = 0 + 4.7µ Typical Performance Device Lamp Size HV833MG 3.0in 2 Typical Performance Curves for Fig 100 200 V vs 1.0 2.0 3.0 4.0 V (V) IN Brightness vs 1.0 2.0 3.0 4.0 V (V) IN Supertex inc 3.0V Enable Signal VDD VA 8 750k 2 RSW-Osc ...

Page 7

... Lamp power dissipation of the package (300mW), an external resistor in series with one side of the lamp is recommended to help reduce the package power dissipation. Supertex inc. very high values. Therefore, only 10’s of microamperes will resistors as shown in the be drawn from the logic signal when logic high (en- able) state ...

Page 8

... JEDEC Registration MO-187, Variation AA, Issue E, Dec. 2004. * This dimension is not specified in the JEDEC drawing. Drawings are not to scale. Supertex Doc. #: DSPD-8MSOPMG, Version H041309. (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to http://www.supertex.com/packaging.html.) does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives Supertex inc ...

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