ILA1185A
T
RIAC
P
HASE
A
NGLE
C
ONTROLLER
The ILA1185A generates controlled triac triggering pulses and allows tachless speed
stabilization of universal motors by an integrated positive feedback function. Typical
applications are power hand tools, vacuum cleaners, mixers, light dimmer and other small
appliances.
鈥?Supply Power Obtained from AC Line
鈥?Can be used with 220 V/50 Hz or 110 V/60
Hz
鈥?Low Count/Cost External Components
鈥?Optimum Triac Firing (2nd and 3rd
Quadrants)
鈥?Repetitive Trigger Pulses when Triac
Current is Intenupted
by Motor Brush Bounce
鈥?Triac Current Sensing to Allow Inductive
Loads
鈥?Programmable Soft-Start
鈥?Power Failure Detection and General
Circuit Reset
鈥?Low Power Consumption; 6.0 mA
Pin Connection
V
EE
Gate trigger
NC
Ramp Generator
NC
Current Cense
Voltage Cense
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
CC
Soft start
Finning Angle Set
NC
Bias Current
Feedback Input
Integration Cap
Figure 1. Representative Block Diagram
1