
PS No.5475-3/3
No products described or contained herein are intended for use in surgical implants, life-support systems,
aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and
the like, the failure of which may directly or indirectly cause injury, death or property loss.
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates,
subsidiaries and distributors and all their officers and employees, jointly and severally, against any
and all claims and litigation and all damages, cost and expenses associated with such use:
Not impose any responsibilty for any fault or negligence which may be cited in any such claim or
litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of
their officers and employees jointly or severally.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guarant-
eed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees
are made or implied regarding its use or any infringements of intellectual property rights or other rights of
third parties.
This catalog provides information as of July, 1998. Specifications and information herein are subject to
change without notice.
TND002
Sample Applications Circuit
Operation
· When the input voltage exceeds 4.5V, the output power MOSFET is turned on to cause current to flow throufh the
lamp and turn it on. At this time, if a rush current flows through the lamp, the current will be limited to about 5A
by the built-in overcurrent protection circuit. When the input voltage drops below 0.8V, the output power
MOSFET is turned off and the lamp is turned off.
· When the lamp load is short-circuited, output voltage becomes equal to the power supply voltage. Therefore, the
reset circuit operates to turn off the output power MOSFET, protecting the power switch from destruction.