ACT334 データシートの表示（PDF） - Active-Semi, Inc
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ACT334 Datasheet PDF : 12 Pages
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ORDERING INFORMATION
ACT334
Rev 2, 14-Nov-12
PART NUMBER
ACT334US-T
TEMPERATURE RANGE
-40°C to 85°C
PACKAGE PINS
SOT23-6
6
PACKING
METHOD
TAPE & REEL
TOP MARK
FSTA
PIN CONFIGURATION
PIN DESCRIPTIONS
SOT23-6
ACT334US-T
PIN
NAME
DESCRIPTION
1
SW
Switch Drive. Switch node for the external NPN transistor. Connect this pin to the external
power NPN’s emitter. This pin also supplies current to VDD during startup.
2
GND Ground.
3
BD
Base Drive. Base driver for the external NPN transistor.
4
VDD
Power Supply. This pin provides bias power for the IC during startup and steady state
operation.
5
FB
Feedback Pin. Connect this pin to a resistor divider network from the auxiliary winding.
Current Sense Pin. Connect an external resistor (RCS) between this pin and ground to set
6
CS
peak current limit for the primary switch. The peak current limit is set by (0.396V × 0.9) /
RCS. For more detailed information, see Application Information.
Innovative PowerTM
-2-
www.active-semi.com
Copyright © 2012 Active-Semi, Inc.
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