4

HV830

The HV830 can also be used for handheld devices operating

from a single cell 1.5V battery where a regulated voltage is

available. This is shown in Fig. 3. The regulated voltage can

be used to run the internal logic of the HV830. The amount of

current necessary to run the internal logic is typically 100µA

at a V

provide the current without being loaded down. The HV830

used in this configuration can also be enabled/disabled via

logic control signal on the R

in Fig.2.

Split Supply Configuration Using a Single Cell (1.5V) Battery

Fig. 3 can also be used with high battery voltages, such as

12V, as long as the input voltage, V

is within its specifications of 2.0V to 9.5V.

Split Supply Configuration for Battery Voltages of Higher than 9.5V

Fig. 3 Split Supply Configuration

Voltage

Voltage

OFF = 0V

200V

0.1µF*

BAS21LT1

EL Lamp

+

–

Remote

Enable

1nF

HV830

1

7

2

3

4

8

6

5

LX

GND

VB

VA

REL-Osc

VDD

RSW-Osc

CS

* Larger values may be required depending upon supply impedence.