Datasheet
Rev 2, 5/2005
ACT30
ACT30
FEATURES
HIGH PERFORMANCE OFF-LINE CONTROLLER
ActiveSwitcher
TM
IC Family
GENERAL DESCRIPTION
The ACT30 is a high performance
green-energy offline power supply controller. It
features a scalable driver for driving external
NPN or MOSFET transistors for line voltage
switching. This proprietary architecture enables
many advanced features to be integrated into a
small package (TO-92 or SOT23-5), resulting in
lowest total cost solution.
The ACT30 design has 6 internal terminals
and is a pulse frequency and width modulation IC
with many flexible packaging options. One
combination of internal terminals is packaged in
the space-saving TO-92 package (A/B/C/D
versions) for 65kHz or 100kHz switching
frequency and with 400mA or 800mA current limit.
The E version (SOT23-5) can be configured for
higher current limit.
Consuming only 0.15W in standby, the IC
features over-current, hiccup mode short circuit,
and under-voltage protection mechanisms.
The ACT30 is ideal for use in high
performance universal adaptors and chargers.
For highest performance versus cost and
smallest PCB area, use the ACT30 in
combination with the ACT32 CV/CC Controller.
Lowest Total Cost Solution
0.15W Standby Power
Emitter Drive Allows Safe NPN Flyback Use
Hiccup Mode Short Circuit
Current Mode Operation
Over-Current Protection
Under-voltage Protection with Auto-restart
Proprietary Scalable Output Driver
Flexible Packaging Options (including TO-92)
65kHz or 100kHz Switching Frequency
Selectable 0.4A to 1.2A Current Limit
APPLICATIONS
Battery Chargers
Power Adaptors
Standby Power Supplies
Appliances
Universal Off-line Power Supplies
Figure 1. Simplified Application Circuit
Active-Semi, Inc.
-1-
Confidential to Micro Bridge
ACT [ ADVANCED CRYSTAL TECHNOLOGY ]
