Active-Semi
FEATURES
•
Lowest Total Cost Solution
•
0.15W Standby Power
•
Emitter Drive Allows Safe NPN Transistor
Flyback Use
ACT30
Rev 5, 05-Jun-09
High Performance Off-Line Controller
ActiveSwitcher
TM
IC Family
GENERAL DESCRIPTION
The ACT30 is a high performance green-energy off-
line 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-B), resulting in lowest total cost
solution.
The ACT30 design has six 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 versions) for 65kHz or
100kHz switching frequency and with 400mA or
800mA 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.
•
•
•
•
•
•
•
•
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
HIGH VOLTAGE DC
R1
D2
R2
IC1
DRV
Q1
+
C1
D1
GND
VDD
OPTOCOUPLER
Innovative Power
TM
ActiveSwitcher
TM
-1-
www.active-semi.com
Copyright © 2009 Active-Semi, Inc.
is a trademark of Active-Semi.
ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
